CN209504658U - A kind of vacuum sealing device and vacuumize tire-mold - Google Patents

Abstract

The utility model provides a kind of vacuum sealing device and vacuumizes tire-mold.Vacuum sealing device includes adjustment section, elastic device and first seal；Pedestal has annular groove circumferentially, and adjustment section is arranged in annular groove by elastic device；Elastic device is configured to supply the elastic force for making adjustment section close to middle die sleeve；First seal is embedded in adjustment section close to the end of middle die sleeve；First seal is configured as the sealing in realized between die sleeve and pedestal；Vacuum sealing device further includes second seal；Second seal is arranged between adjustment section and the side wall of annular groove.Such vacuum sealing device improves the deficiency of vacuum degree and the excessive wear to sealing ring when molding in the prior art.

Description

A kind of vacuum sealing device and vacuumize tire-mold

Technical field

The utility model relates to tire-mold technical fields, in particular to a kind of vacuum sealing device and vacuumize Tire-mold.

Background technique

Currently, the application surface of radial-ply tyre is more and more wider, the especially tire of intricate detail, and tread contour is more complicated, It is more easy to appear the unsmooth problem of die venting in tire building process, causes tire starved, influences tire appearance.To make gas Smooth discharge, traditional activating mold are by processing a large amount of gas vents, gas between tire base and mold tyre surface in cavity surface It is passively discharged by gas vent, when structure is complicated for tyre tread, when pattern depth is larger, by the mobility of temperature and tire base after heated It influences, phenomenon of choking with resentment easily occurs, cause tire starved, tire arris unintelligible, influence the service performance and appearance of tire.

In traditional activating mold, especially between pedestal and middle die sleeve, often by the outer circle in middle die sleeve lower end The sealing ring being arranged on surface seals to realize.But mold is in use, can because cooperation precision reduction, cause Gap between die sleeve and the protrusion of pedestal becomes larger, and reduces pedestal and middle die sleeve sealing effect, leads to the vacuum of mould inside Degree is unable to reach requirement.

In addition, the frequent opening and closing movement of mold, will lead to the abrasion of this sealing ring, and lead to the service life of sealing ring It is low.

Utility model content

First of the utility model is designed to provide a kind of vacuum sealing device, is vented not when improving mold clamping Unobstructed, vacuum degree deficiency and the excessive wear to sealing ring.

Second of the utility model is designed to provide one kind and vacuumizes tire-mold, exhaust when improving mold clamping Obstructed, vacuum degree deficiency and the excessive wear to sealing ring.

The embodiments of the present invention are achieved through the following technical solutions:

Vacuum sealing device includes adjustment section, elastic device and first seal；Pedestal has annular groove circumferentially, adjusts It is whole to be arranged in annular groove by elastic device；Elastic device is configured to supply the elastic force for making adjustment section close to middle die sleeve； First seal is embedded in adjustment section close to the end of middle die sleeve；

First seal is configured as the sealing in realized between die sleeve and adjustment section；

Vacuum sealing device further includes second seal；Second seal is arranged between adjustment section and annular groove.

Inventors have found that traditional tire-mold in cavity surface by processing a large amount of gas vents, tire base and mold tyre surface Between gas be passively discharged by gas vent, when structure is complicated for tyre tread, when pattern depth is larger, by temperature and tire base it is heated after Mobility influence, easily there is phenomenon of choking with resentment, cause tire starved, tire arris unintelligible, influence the service performance of tire And appearance.In traditional moulds, between pedestal and middle die sleeve, set by being crossed on the outer round surface of middle die sleeve lower end in middle die sleeve The sealing ring set seals to realize, the gap between middle die sleeve and the protrusion of pedestal can be caused to become because cooperating the reduction of precision Greatly, sealing effect is reduced, the vacuum degree requirement of mould inside is unable to satisfy.In addition the frequent opening and closing movement of mold can be led The abrasion of fine and close seal causes the service life of sealing ring low.

A kind of vacuum sealing device of inventor's utility model accordingly, vacuum sealing device include adjustment section, in adjustment section Side sets venthole, the sealing inner cavity of one end connection tire-mold of venthole, and the other end is connected to annular groove, vacuum sealing device setting Gas nozzle is vacuumized, vaccum-pumping equipment passes sequentially through and vacuumizes gas nozzle, venthole vacuumizes sealing inner cavity, solves gas by being vented The problem of hole is passively discharged.Vacuum sealing device includes adjustment section, elastic device, first seal and second seal, adjustment Portion is arranged in annular groove by elastic device, and elastic device offer makes adjustment section close to the elastic force of middle die sleeve, first seal It is embedded in adjustment section close to the end of middle die sleeve, second seal is embedded between adjustment section and the inner wall of annular groove, in this way, matching In the case where the reduction for closing precision, elastic device can make adjustment section close to middle die sleeve, first seal centering die sleeve and tune always Gap between whole is sealed, and is guaranteed vacuum effectiveness, is guaranteed the vacuum degree of mould inside.

To sum up, such vacuum sealing device sealing effect is good, strong applicability, when can preferably guarantee mold clamping pair The requirement of vacuum degree guarantees vacuumizing effect, and improves the service life of sealing ring, to ensure that the use state of mold And service life, it is ensured that the quality and quality of the tire of tire-mold production.

Further, vacuum sealing device further includes venthole, and venthole is arranged in what adjustment section was enclosed with annular groove bottom On first cavity；

First cavity is connected to by venthole with the sealing inner cavity of tire-mold, it is preferred that venthole is penetratingly arranged in In adjustment section；

Or first cavity be connected to by the external of venthole and tire-mold.

Further, adjustment section is provided with the first groove close to the end of middle die sleeve；

First seal is set to the first groove；

Preferably, the cross sectional shape of the first groove is inverted V type or semi-circular；

The cross sectional shape of first seal is trapezoidal, semicircle, any in triangle.

Further, vacuum sealing device further includes the first limiting section；

First limiting section is embedded in pedestal on the end face of middle die sleeve；

Adjustment section has the first auxiliary section, and the first limiting section and the first auxiliary section cooperate to limit adjustment section the bottom of far from The displacement of seat.

Further, the first limiting section includes pressing plate and the first connector；

Pressing plate is embedded on pedestal by the first connector；

Pressing plate and the first auxiliary section cooperate to limit displacement of the adjustment section far from institute's pedestal.

Further, vacuum sealing device further includes receiving dirty slot；

Dirty grooved ring of receiving is located on the inner wall of annular groove；

Along the axial direction of tire-mold, receive dirty slot position in pedestal between the end face and second seal of middle die sleeve； And described dirty slot position is received above second seal；

Preferably, dirty slot of receiving has to the recessed portion extended far from middle die sleeve direction.

Further, vacuum sealing device further includes third sealing element, the 4th sealing element and the 5th sealing element；

Third sealing element is embedded between upper sealing ring and upper cover；

4th sealing element is embedded between upper sealing ring and mounting ring；

5th sealing element is embedded between mounting ring and middle die sleeve.

Further, along the axial direction of tire-mold, the 5th sealing element is embedded between mounting ring and middle die sleeve；

Or in the radial direction along tire-mold, the 5th sealing element is embedded between mounting ring and middle die sleeve.

Further, vacuum sealing device further includes third sealing element and the 5th sealing element；

One end of upper sealing ring is arranged on upper lid, and the radially inner side of middle die sleeve is arranged in the other end of upper sealing ring；

Third sealing element is embedded between upper sealing ring and upper cover；

5th sealing element is embedded between upper sealing ring and middle die sleeve.

One kind vacuumizing tire-mold comprising the vacuum sealing device of any of the above-described.

The technical solution of the utility model embodiment is at least had the following advantages and beneficial effects:

Vacuum-pumping density seal apparatus provided by the embodiment of the utility model and pedestal, middle die sleeve cooperate, and are filled by elasticity It sets and cooperates with adjustment section, so that first seal both ends is in close contact adjustment section and middle die sleeve always, so that pedestal and middle mould Sealing effect between set is good, by setting venthole, vacuumizes gas nozzle, sealing ring be static seal be not hit or impact compared with It is small, the service life of sealing ring is improved, guarantees the vacuumizing effect for vacuumizing tire-mold.

It is provided by the embodiment of the utility model to vacuumize tire-mold, it is close due to having above-mentioned vacuum-pumping density seal apparatus Seal that effect is good, strong applicability, requirement when can preferably guarantee mold clamping to vacuum degree guarantees vacuumizing effect, and The service life for improving sealing ring, to ensure that the use state and service life of mold, it is ensured that the wheel of tire-mold production The quality and quality of tire.

Meanwhile it is provided by the embodiment of the utility model vacuumize tire-mold smooth in exhaust, tyre stock be easy fill mould Has dead angle, the advantage that tire appearance is beautiful and tyre performance is good.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is the structural schematic diagram for the vacuum-pumping density seal apparatus that the embodiments of the present invention one provide；

Fig. 2 is the first partial schematic diagram in Fig. 1 at A；

Fig. 3 is the second partial schematic diagram in Fig. 1 at A；

Fig. 4 is the partial schematic diagram in Fig. 1 at B；

Fig. 5 is the structural schematic diagram for the vacuum-pumping density seal apparatus that the embodiments of the present invention two provide；

Fig. 6 is the partial schematic diagram in Fig. 5 at C；

Fig. 7 is the structural schematic diagram for the vacuum-pumping density seal apparatus that the embodiments of the present invention three provide；

Fig. 8 is the partial schematic diagram in Fig. 7 at D.

Icon: 10- vacuum sealing device；100- adjustment section；110- venthole；The first auxiliary section 130-；140- receives dirt Slot；141- recessed portion；200- elastic device；300- first seal；The first groove of 301-；320- second seal；340- Three sealing elements；The 4th sealing element of 360-；The 5th sealing element of 380-；The first limiting section of 400-；410- pressing plate；The connection of 420- first Part；20- vacuumizes tire-mold；21- pedestal；Die sleeve in 22-；23- annular groove；24- mounting ring；25- upper sealing ring；On 26- Lid；27- vacuumizes gas nozzle；28- lower side panel；29- epipleural.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should be noted that if occur term " center ", "upper", "lower", " left side ", The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "inner", "outside" is orientation based on the figure or position Relationship or the utility model product using when the orientation or positional relationship usually put, be merely for convenience of describing this reality It is described with novel with simplified, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific Orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " It is described etc. being only used for distinguishing, is not understood to indicate or imply relative importance.

In addition, being not offered as requiring component abswolute level or outstanding if there are the terms such as term "horizontal", "vertical", " pendency " It hangs down, but can be slightly tilted.It is not to indicate to be somebody's turn to do if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical" Structure is had to fully horizontally, but can be slightly tilted.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, if there is art Language " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachable Connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, centre can also be passed through Medium is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.

Embodiment 1

Incorporated by reference to referring to Figures 1 and 2, it can be seen from the figure that a kind of vacuum sealing device 10 includes adjustment section 100, bullet Property device 200 and first seal 300, cooperate with the pedestal 21 and middle die sleeve 22 for vacuumizing tire-mold 20 to seal Vacuumize tire-mold 20.

Further, pedestal 21 has annular groove 23 circumferentially, and adjustment section 100 is arranged by elastic device 200 in ring In slot 23；Elastic device 200 is configured to supply the elastic force for making adjustment section 100 close to middle die sleeve 22；First seal 300 is embedding Be located at adjustment section 100 close to the end first seal 300 of middle die sleeve 22 be configured as realizing in die sleeve 22 and adjustment section 100 it Between sealing；Vacuum sealing device 10 further includes second seal 320；Second seal 320 is arranged in adjustment section 100 and annular groove Between 23 radially inward side walls.

Inventors have found that traditional tire-mold in cavity surface by processing a large amount of gas vents, tire base and mold tyre surface Between gas be passively discharged by gas vent, when structure is complicated for tyre tread, when pattern depth is larger, by temperature and tire base it is heated after Mobility influence, easily there is phenomenon of choking with resentment, cause tire starved, tire arris unintelligible, influence the service performance of tire And appearance.In traditional moulds, between pedestal 21 and middle die sleeve 22, by crossing the outer circle in middle 22 lower end of die sleeve in middle die sleeve 22 The sealing ring being arranged on surface seals to realize, can lead to the protrusion of middle die sleeve 22 and pedestal 21 because cooperating the reduction of precision Between gap become larger, reduce sealing effect, be unable to satisfy the vacuum degree requirement of mould inside.In addition mold is frequently opened Conjunction movement, will lead to the abrasion of sealing ring, causes the service life of sealing ring low.

Vacuum sealing device 10 in the present embodiment, elastic device 200 is set to 100 lower end of adjustment section, so that adjustment section 100 have upward movement tendency, oppress the first seal 300 being embedded above adjustment section 100, so that first seal 300 seals Gap between 22 bottom of adjustment section 100 and middle die sleeve, and even if cooperation precision reduces, the elasticity that elastic device 200 exports Power still be able to so that first seal 300 contradict in die sleeve 22, the sealing in guarantee between die sleeve 22 and adjustment section 100 wants It asks.

It should be noted that the quantity of the elastic device 200 of vacuum sealing device 10 is multiple, multiple elastic devices 200 Circumferentially it is evenly arranged in annular groove 23.Or the different radial positions along 23 radial direction of annular groove are arranged in multiple elastic devices 200； Or multiple elastic devices 200 form multiple row, the elastic device 200 in each column is circumferential to be evenly arranged in annular groove 23, and multiple row elasticity Device 200 is sequentially arranged along 23 radial direction of annular groove.

Optionally, annular groove 23 includes bottom, and the side wall connecting with bottom margin, which, which can be, is vertically set on Bottom is also possible to be inclined on bottom.

Optionally, in the present embodiment, vacuum sealing device 10 includes two second seals 320, one of them second Sealing element 320 is arranged between the inner sidewall of 23 radially inner side of adjustment section 100 and annular groove；The setting of another second seal 320 Between the lateral wall of 23 radial outside of adjustment section 100 and annular groove.Further, it is close to be arranged at second for second seal 320 Sealing 320 is arranged in the groove of 100 side wall of adjustment section.

It should be noted that in the other embodiments of the utility model, positioned at the lateral wall side of 23 radial outside of annular groove To being not provided with second seal 320, and there is one the between the inner sidewall of only 23 radially inner side of adjustment section 100 and annular groove Two sealing elements 320 are so also able to achieve 100 circumferential seal of adjustment section.

Optionally, second seal 320 is not limited in the groove that 100 side wall of adjustment section is arranged in, the utility model its In his embodiment, second seal 320 can be the side for being arranged in the groove of 23 inner sidewall of annular groove, or being arranged at annular groove 23 In the groove of 100 side wall of groove and adjustment section of wall, an only example here, as long as second seal 320 can will be adjusted Whole 100 seal with annular groove 23.

From this figure it can be seen that vacuum sealing device 10 further includes venthole 110, venthole 110 is arranged in adjustment section On 100 the first cavitys enclosed with 23 bottom of annular groove；First cavity is connected by the sealing inner cavity of venthole 110 and tire-mold It is logical, it is preferred that venthole 110 is penetratingly arranged in adjustment section 100.Further, venthole 110 is along vacuumizing wheel mold Radial direction run through adjustment section 100, and the axis direction of the extending direction of venthole 110 and adjustment section 100 have it is default away from From the sealing inner cavity of one end connection tire-mold of venthole 110, the other end is connected to annular groove 23.

The gas nozzle 27 that vacuumizes being arranged on pedestal 21 vacuumizes the sealing of tire-mold 20 by the connection of above-mentioned venthole 110 Inner cavity in the case where guaranteeing vacuum degree, can be avoided traditional tire-mold by gas vent and passively be vented unsmooth unfavorable feelings Condition promotes the service performance and appearance of tire.(it should be pointed out that vacuumizing gas nozzle 27 can be set on middle die sleeve 22, then It is connected to the sealing inner cavity of tire-mold, is at this moment not provided with venthole 110 in adjustment section 100)

It should be noted that in other embodiments, the first cavity is connected by venthole 110 and the outside of tire-mold It is logical.As long as venthole 110 can ensure that adjustment section 100 flexibly moves up and down in the first cavity.

It can be seen from the figure that first seal 300 is located on the upper surface of adjustment section 100.Further, it adjusts Portion 100 is provided with the first groove 301 close to the end of middle die sleeve 22；First seal 300 is set to the first groove 301；First is recessed The cross sectional shape of slot 301 is inverted V type or semi-circular；The cross sectional shape of first seal 300 is trapezoidal, semicircle, in triangle It is any.First seal 300 is set to the first groove 301, cooperates with the first groove 301, and first seal 300 is partially in Inside 100 body of adjustment section, is set, can be guaranteed by the selection of the shape to first seal 300 and the first groove 301 When mold is opened, first seal 300 guarantees to be connected with adjustment section 100 without departing from the first groove 301, increases by the first sealing The stability in use of part 300.

Further, vacuum sealing device 10 further includes the first limiting section 400；First limiting section 400 is embedded in pedestal 21 On the end face of middle die sleeve 22；Adjustment section 100 has the first auxiliary section 130, the first limiting section 400 and the first auxiliary section 130 It cooperates to limit displacement of the adjustment section 100 far from pedestal 21.Pass through 400 He of the first limiting section being embedded on pedestal 21 First auxiliary section 130 of adjustment section 100 cooperates, and can guarantee the elastic force upward by elastic device 200 of adjustment section 100 When, it is not extruded the body geometric ranges of pedestal 21, guarantees the stability of adjustment section 100.

First limiting section 400 is embedded the mode in pedestal 21 and makes limiting section fixed more convenient.By limiting section, guarantee to adjust Whole 100 move up and down without departing from annular groove 23, avoid in use process, squeeze partially between 23 side wall of adjustment section 100 and annular groove, and Lead to the damage of second seal 320 and loses sealing effect.Or lead to the service life of the surface damage reduction mold of side wall.

Further, the first limiting section 400 includes pressing plate 410 and the first connector 420；Pressing plate 410 passes through the first connection Part 420 is embedded on pedestal 21；Pressing plate 410 and the first auxiliary section 130 cooperate to limit adjustment section 100 far from institute's pedestal 21 Displacement.The first connector 420 can be bolt etc. herein.Pressing plate 410 is embedded on pedestal 21 by the first connector 420, is protected Fixing situation of the pressing plate 410 relative to pedestal 21 is demonstrate,proved, adjustment section is eliminated in the mutual cooperation of pressing plate 410 and the first auxiliary section 130 100 possibility far from pedestal 21, are conducive to seal.

It should be noted that the first limiting section 400, which can also be, to be arranged the bottom of in the other embodiments of the utility model Protrusion or extension on seat 21, an only example here, as long as the first limiting section 400 can be with the first auxiliary section 130 cooperate to limit displacement of the adjustment section 100 far from pedestal 21.

As a preferred embodiment, referring to figure 3., and compare referring to Fig. 2, it can be seen that vacuum sealing device 10 It further include receiving dirty slot 140；Dirty 140 ring of slot of receiving is located on the side wall of annular groove 23；Along the axial direction of tire-mold, dirty slot 140 is received Positioned at pedestal 21 between the end face and second seal 320 of middle die sleeve 22, and receives dirty slot 140 and be located at second seal 320 Top；Preferably, dirty slot 140 of receiving has to the recessed portion 141 extended far from middle 22 direction of die sleeve.

The dirty slot 140 received allows the impurity of 320 attachment of second seal to enter wherein, thus prevent impurity enter annular groove 23 with The gap of adjustment section 100, and then ensure the sealing effect of second seal 320.

Further, dirty slot 140 of receiving is equipped with the first passage radially extended, which extends towards adjustment section 100, And recessed portion 141 is located at the side on first passage far from adjustment section 100.The upper end of adjustment section 100 has the first protrusion, this One protrusion extends channel with first and cooperates to cover first passage.

In the present embodiment, vacuum sealing device 10 includes two and receives dirty slot 140, receives dirty slot 140 for one and is arranged in annular groove On 23 radially inward inner sidewall, another is received dirty slot 140 and is arranged on the radially outer lateral wall of annular groove 23, and receives Dirty slot 140 is located at the top of the second seal 320 of position at two.It should be noted that in other embodiments, position It is not provided with second seal 320 in the lateral wall direction of 23 radial outside of annular groove, receives dirty slot correspondingly, being also not provided at this 140。

In use, in a practical situation, mold is during being opened molding, 300 meeting of adjustment section 100 and first seal Relative displacement is generated, when the die is closed, middle die sleeve 22 is close and squeezes first seal 300, and adjustment section 100 is driven to generate opposite position It moves, when die sinking, for middle die sleeve 22 far from pedestal 21, adjustment section 100 returns to original position under the support of elastic device 200, Until limited by the first limiting section 400, it can be attached to the in this process, when impurity is moved up and down along adjustment section 100 Two sealing elements, 320 surface influences the sealing effect of second seal 320, and then influences vacuum degree, influences vacuumizing effect.This When along tire-mold axial direction, annular groove 23 is added on inner wall receives dirty slot 140, and dirty slot 140 of receiving is located at pedestal 21 in Between the end face and second seal 320 of die sleeve 22, so that impurity is received before entering between adjustment section 100 and 23 inner wall of annular groove The dirty aggregation of slot 140 accommodates.Dirty slot 140 achievees the purpose that aggregation, accommodates impurity to receive, and the dirty slot 140 of receiving added has Far from the recessed portion 141 that middle 22 direction of die sleeve extends, which be to receive the part of separate adjustment section 100 in dirty slot 140, Dirty slot 140 of receiving is relatively higher than close to the part of adjustment section 100 to be received far from the recessed portion 141 of adjustment section 100 in dirty slot 140, should Recessed portion accommodates impurity 141, and may make impurity not influences the sealing effect of second seal 320, guarantees vacuum sealing device 10 Sealing effect.

With continued reference to Fig. 1 to Fig. 4, further, vacuum sealing device 10 further includes that third sealing element the 340, the 4th seals Part 360 and the 5th sealing element 380；Third sealing element 340 is embedded between upper sealing ring 25 and upper cover 26；4th sealing element 360 It is embedded between upper sealing ring 25 and mounting ring 24；5th sealing element 380 is embedded between mounting ring 24 and middle die sleeve 22；Along wheel On the axial direction of placenta, the 5th sealing element 380 is embedded between mounting ring 24 and middle die sleeve 22；

Since upper cover 26 herein, upper sealing ring 25, mounting ring 24, middle die sleeve 22 are connected to the sealing inner cavity of mold, So needing to carry out corresponding sealing device.The sealing of upper cover 26 and upper sealing ring 25 is realized by third sealing element 340, is led to The sealing between the 4th sealing element 360 realization upper sealing ring 25 and mounting ring 24 is crossed, passes through the 5th sealing element 380 and realizes mounting ring Sealing between 24 and middle die sleeve 22.Seal groove is equipped between the mating surface of adjacent parts, sealing element is set in seal groove.This When, the 5th sealing element 380 is embedded between mounting ring 24 and middle die sleeve 22 along the axial direction of tire-mold, so can guarantee The sealing of mould upstream.

It should be noted that in the present embodiment, first seal 300, second seal 320, third sealing element 340, 4th sealing element 360, the 5th sealing element 380 are sealing ring.

The vacuum sealing device 10 of the present embodiment of the utility model at least has the advantages that

1, the sealing ring static seal in vacuum sealing device 10 or the power that is not hit improve the service life of sealing ring, drop The cost of low-maintenance sealing ring；

2, with that smooth in exhaust, tyre stock are easy that filling mold dead angle, tire appearance are beautiful and tyre performance is good is excellent Point；

3, lower to activating mold structural requirement, the mold using various shape, type mounting ring 24 can be used；

4, equipped with dirty slot 140 is received, dirty slot 140 of receiving can enter second seal 320 when being opened molding to avoid impurity, mention The permanent stabilization of high sealing effect；

5, under the action of the first seal 300 that the groove of adjustment section 100 is equipped with is through elastic device 200, make 21 He of pedestal Middle die sleeve 22 keeps sealing state, and first seal 300 is not hit power, improves the service life of first seal 300；

6, for the vulcanization machine equipment of low precision, in addition after the sealing of 22 lower end surface of die sleeve, even if middle die sleeve 22 does not use Outer circle sealing, also can be very good to ensure sealing effect.

7. 22 lower end of die sleeve is influenced by die wear, deformation, adjustment preloading etc. in, leads to middle 22 lower end of die sleeve and bottom When the distance between 21 upper ends of seat change, there is vacuum sealing device 10 adaptive ability can change therewith.

The present embodiment of the utility model also provides one kind and vacuumizes tire-mold 20 comprising the vacuum of any of the above-described Sealing device 10.Tire-mold 20 is vacuumized, due to having above-mentioned vacuum sealing device 10, sealing effect is good, applicable Property strong, requirement when can preferably guarantee mold clamping to vacuum degree, guarantee vacuumizing effect, and improve making for sealing ring With the service life, to ensure that the use state and service life of mold, it is ensured that the quality and quality of the tire of tire-mold production.

Meanwhile tire-mold provided by the embodiment of the utility model can be on the basis of existing antivacuum tire-mold On, the vacuumizing function of mold can be realized by being simply transformed, saved cost.

Embodiment 2

Fig. 5 is the structural schematic diagram for the vacuum-pumping density seal apparatus that the embodiments of the present invention two provide；Fig. 6 is C in Fig. 5 The partial schematic diagram at place.

Referring to figure 5. and Fig. 6, it can be seen from the figure that the vacuum sealing device phase consistent with embodiment in the present embodiment Together, the difference is that, in the radial direction along tire-mold, the 5th sealing element 380 is embedded in mounting ring 24 and middle die sleeve 22 Between.

Mounting ring 24 is equipped with the protrusion ring matched with middle die sleeve 22, and prominent ring is against the corresponding auxiliary section of middle die sleeve 22, The 5th sealing element 380, the nothing along the contact surface of mold radial direction of middle die sleeve 22 and mounting ring 24 are equipped at the place of being engaged Sealing element is needed to seal.When needing to adjust mold preloading, gasket can be increased between middle die sleeve 22 and mounting ring 24, can adjusted While the purpose of whole preloading, the 5th sealing element 380 is not influenced by gasket, and increasing gasket does not influence the 5th sealing element 380 Sealing effect.Sealing ring uses static seal, increases the service life of sealing ring.

The present embodiment of the utility model also provides one kind and vacuumizes tire-mold 20 comprising above-mentioned vacuum sealing dress Set 10.Tire-mold 20 is vacuumized, due to having above-mentioned vacuum sealing device 10, preload operation can be carried out, do not influenced Vacuumize the sealing situation of tire-mold 20.

Embodiment 3

Fig. 7 is the structural schematic diagram for the vacuum-pumping density seal apparatus that the embodiments of the present invention three provide；Fig. 8 is D in Fig. 7 The partial schematic diagram at place.

Fig. 7 and Fig. 8 are please referred to, from the way as can be seen that it can be seen from the figure that vacuum sealing device in the present embodiment It is roughly the same with embodiment one, the difference is that, one end of upper sealing ring 25 is arranged in upper cover 26, and the other end is arranged in The radially inner side of die sleeve 22, mounting ring 24 do not connect with sealing inner cavity, and it is close that third is equipped between upper cover 26 and upper sealing ring 25 Sealing 340 is equipped with the 5th sealing element 380 between upper sealing ring 25 and middle die sleeve 22.

24 isolating seal inner cavity of mounting ring is not arranged on 24 surface of mounting ring and is sealed by upper sealing ring 25 and middle die sleeve 22 Part.When needing to adjust mold preloading, gasket need to be increased between middle die sleeve 22 and mounting ring 24, not influence the 5th sealing element 380 sealing effect；The embodiment that compares 1 and embodiment 2, the sealing device of embodiment 3, which reduces, to be arranged in middle 22 He of die sleeve Sealing element between mounting ring 24 saves money for subsequent maintenance.Sealing ring uses static seal, increases sealing ring Service life.

Optionally, in the present embodiment, upper sealing ring 25 is L shape, and one end of the upper sealing ring 25 passes through third sealing element 340 with 26 end face static seal of upper cover, the other end of upper sealing ring 25 is quiet close by the 5th sealing element 380 and middle 22 end face of die sleeve Envelope.

The present embodiment of the utility model also provides one kind and vacuumizes tire-mold 20 comprising above-mentioned vacuum sealing dress Set 10.Tire-mold 20 is vacuumized, due to having above-mentioned vacuum sealing device 10, preload operation can be carried out, do not influenced The sealing situation of tire-mold 20 is vacuumized, and reduces the setting quantity of sealing ring, reduces maintenance expense, improves production effect Benefit.

The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (13)

1. a kind of vacuum sealing device cooperates with the pedestal for vacuumizing tire-mold and middle die sleeve and vacuumizes wheel to seal Placenta, it is characterised in that:

The vacuum sealing device includes adjustment section, elastic device and first seal；

The pedestal has annular groove circumferentially, and the adjustment section is arranged in the annular groove by the elastic device；

The elastic device is configured to supply the elastic force for making the adjustment section close to the middle die sleeve；

The first seal is embedded in the adjustment section close to the end of the middle die sleeve；The first seal is configured as Realize the sealing between the middle die sleeve and the adjustment section；

The vacuum sealing device further includes second seal；

The second seal is arranged between the adjustment section and the side wall of the annular groove.

2. vacuum sealing device according to claim 1, it is characterised in that:

The vacuum sealing device further includes venthole, and the venthole setting is enclosed in the adjustment section and the annular groove bottom The first cavity on；

First cavity is connected to by the venthole with the sealing inner cavity of the tire-mold；

Or first cavity is connected to by the venthole with the external of the tire-mold.

3. vacuum sealing device according to claim 2, it is characterised in that:

When first cavity is connected to by the venthole with the sealing inner cavity of the tire-mold, the venthole is penetratingly It is arranged in the adjustment section.

4. vacuum sealing device according to claim 1, it is characterised in that:

The adjustment section is provided with the first groove close to the end of the middle die sleeve, and it is recessed that the first seal is set to described first Slot.

5. vacuum sealing device according to claim 4, it is characterised in that:

The cross sectional shape of first groove is inverted V type or semi-circular；

The cross sectional shape of the first seal is trapezoidal, semicircle, any in triangle.

6. vacuum sealing device according to claim 1, it is characterised in that:

The vacuum sealing device further includes the first limiting section；

First limiting section is embedded in the pedestal on the end face of the middle die sleeve；

The adjustment section has the first auxiliary section, and first limiting section and first auxiliary section cooperate described to limit Displacement of the adjustment section far from the pedestal.

7. vacuum sealing device according to claim 6, it is characterised in that:

First limiting section includes pressing plate and the first connector；

The pressing plate is embedded on the base by first connector；

The pressing plate and first auxiliary section cooperate to limit displacement of the adjustment section far from the pedestal.

8. vacuum sealing device according to claim 1, it is characterised in that:

The vacuum sealing device further includes receiving dirty slot；

It is described to receive dirty grooved ring and be located on the side wall of the annular groove；

Along the axial direction of the tire-mold, it is described receive dirty slot position in the pedestal close to the end face of the middle die sleeve and described Between second seal, and described dirty slot position is received above the second seal.

9. vacuum sealing device according to claim 8, it is characterised in that:

It is described to receive dirty slot and have to the recessed portion extended far from the middle die sleeve direction.

10. vacuum sealing device according to claim 1 to 9, also with the installation that vacuumizes tire-mold Ring, upper sealing ring and upper cover, which cooperate, vacuumizes tire-mold to seal, it is characterised in that:

The vacuum sealing device further includes third sealing element, the 4th sealing element and the 5th sealing element；

The third sealing element is embedded between the upper sealing ring and the upper cover；

4th sealing element is embedded between the upper sealing ring and the mounting ring；

5th sealing element is embedded between the mounting ring and the middle die sleeve.

11. vacuum sealing device according to claim 10, it is characterised in that:

5th sealing element along the axial direction or radial direction of the tire-mold be embedded the mounting ring and it is described in Between die sleeve.

12. vacuum sealing device according to claim 1 to 9, also with the installation that vacuumizes tire-mold Ring, upper sealing ring and upper cover, which cooperate, vacuumizes tire-mold to seal, it is characterised in that:

The vacuum sealing device further includes third sealing element and the 5th sealing element；

On the cover, the middle die sleeve is arranged in the other end of the upper sealing ring for one end setting of the upper sealing ring Radially inner side；

The third sealing element is embedded between the upper sealing ring and the upper cover；

5th sealing element is embedded between the upper sealing ring and the middle die sleeve.

13. one kind vacuumizes tire-mold, it is characterised in that: the tire-mold that vacuumizes includes any in claim 1-12 Vacuum sealing device described in.