CN208148290U - A kind of tire-mold and tire - Google Patents

Abstract

The utility model discloses a kind of tire-mold and tire, the die body in tire-mold type bottom of chamber face is made of aperture value≤0.15mm ventilating structure.The type chamber bottom surface portions of knurling section use ventilating structure, match it with the air discharge duct of mold cavity bottom surface, the utility model eliminates the exhaust system of mold body complexity, does not need to inflate on mold hole, also not needing the mould structure of the complexity such as pore-free mold.

Description

A kind of tire-mold and tire

Technical field

The utility model relates to a kind of tire-mold and tires.

Background technique

At present there are mainly two types of the exhaust schemes of rubber mold (such as tire-mold), one is burrow or stomata on mold It is exhausted, another kind is pore-free mold.In practical applications, both exhaust schemes all have clearly disadvantageous place：

If exhaust effect is relatively good using burrowing on mold or the mode of stomata is exhausted, but one common Rubber mold stomata quantity is up to thousands of, burrows or the process time and effort consuming of stomata, occupies a large amount of manpower and material resources, and hole or gas The quality control difficulty in hole is high, does not ensure that the completion as requested of each stomata.

If needing to split into mold cavity many small units using pore-free mold and processing, then spell It is attached to together, is exhausted using the fit clearance between each unit.Conventional tyre adjustable mold cavity part is according to reality It needs, the junior unit split into few then tens is how then up to a hundred, and the cooperation required precision of these junior units is high, and inconvenient It is operated, can not also control quality well.

To sum up, existing exhaust scheme all has higher requirements to processing, I& M etc. at present, and die cost It is higher, it is not particularly suited for actual production.

Summary of the invention

The utility model to solve the above-mentioned problems, proposes a kind of tire-mold and tire, provided by the utility model Tire-mold saves complicated exhaust system manufacture link, and quality control is become easier to, and substantially reduce Its production cycle.

To achieve the goals above, the utility model adopts the following technical solution：

A kind of tire-mold, the die body in tire-mold type bottom of chamber face are made of ventilating structure or are ventilating structure.

Aperture value≤0.3mm of ventilating structure.

Or more preferably, 0.005mm≤aperture value≤0.15mm,

Or further, 0.005mm≤aperture value≤0.10mm.

More specifically, the die body in tire-mold type bottom of chamber face is ventilating structure, and the ventilating structure has multiple run through The air hole of die body, and aperture value≤0.15mm of air hole.

The type chamber bottom surface portions of above-mentioned tire die tread pattern part use ventilating structure, make the row of itself and mold cavity bottom surface Air drain matches.Such design can guarantee that the air discharge duct periphery of rubber mold is ventilating structure, guarantee the smooth of air discharge duct Exhaust improves exhaust quality and efficiency.The knurling section of above-mentioned tire-mold with a thickness of 3mm~30mm.

The flower muscle of the knurling section of above-mentioned tire-mold and steel disc part are airtight structure.

The hot spot spacing of ventilating structure is greater than the hot spot spacing of airtight structure.

The knurling section back side of the mold is equipped with the fixed column that mold pattern part and sliding block link together.

Above-mentioned tire-mold has multilayered structure.

Each layer of thickness value is 0.01~0.3mm.

The sintered path that ventilating structure is constituted between N layers every has certain angle, and angular range is 5 °~175 °, N More than or equal to 1.

Each layer of thickness value is 0.01~0.3mm.

Preferably, angular range is 5 °~175 °.

Tire is prepared by above-mentioned tire-mold.

As a kind of embodiment, the production process of above-mentioned tire-mold, including following procedure：

(1) at least mold using when be ventilating structure with the bottom in the semiclosed region of product contact portion premised on, Establish mold data model；

(2) parameter assignment is sintered to mold data model, guarantees the hot spot spacing in the sintering parameter of ventilating structure It is greater than the set value；

(3) it is printed, shape according to mold data model according to the different sintering parameters of imparting using 3D printing equipment At mold.

Semiclosed region, that is, die surface has the semi-closed structure of upper opening.Such as in tire-mold type chamber, have By flower muscle or the semiclosed region that surrounds of steel disc.

Further, if increased in the sintering parameter of ventilating structure there are airtight structure in mold data model Hot spot spacing, the spacing of hot spot when making its hot spot spacing slightly larger than normal sintering.Make the light in the sintering parameter of airtight structure When spot spacing is normal sintering the spacing of hot spot or when can be slightly less than normal sintering hot spot spacing.

Further, if airtight structure is not present in mold data model, setting value is more than or equal to such product The spacing of hot spot when being normally sintered in mold data model when modeling.

Further, hot spot distance values in sintering parameter need power according to different laser, laser scanning Speed and the size of the hot spot used are adjusted.

Further, according to the difference of 3D printing equipment, the value of hot spot spacing is 0.05~0.3mm.

The adjustment of Air permenbility size is realized by increasing or reducing laser beam spacing.

Further, the successively printing using 3D printing equipment in layer prints multilayer, by way of adding up layer by layer Form mold finished product.

Preferably, every N layers of laser beam scan path carries out intersection certain angle, and N is configured according to the thickness of every layer material, It can guarantee the bonding strength of material internal.

Meanwhile every layer of thickness value is adjusted according to the power and/or scanning speed of laser.

Further, each layer of laser beam scan path intersects with last laser beam scan path and has centainly Angle forms the air-permeable molded body of irregular aperture value≤0.15mm.

Certainly, those skilled in the art can not also use the above method, and prepare above-mentioned tyre mould using other methods Tool, constitutes the die body in tire-mold type bottom of chamber face by aperture value≤0.15mm ventilating structure.

As another embodiment, the manufacturing method of above-mentioned tire-mold, including following procedure：

Ventilating structure is directly machined by the material with ventilating structure.

Further, the material with ventilating structure includes but is not limited to ventilative aluminium alloy, ventilative steel and/or breathes freely Titanium alloy.Since the material with ventilating structure inherently has ventilating structure, can be vented, meanwhile, when preparing tire, rubber Ventilating structure will not be entered.

Preferably, the ventilative hole of the material of ventilating structure is less than or equal to 0.3mm.

Further, if having airtight structure, airtight structure is embedded in mold by the way of individually processing On the bottom surface of type chamber.

Material with ventilating structure is metal or ceramic material.

Compared with prior art, the beneficial effects of the utility model are：

1) the utility model eliminates the exhaust system of mold body complexity, does not need to inflate on mold hole, to be also not required to Want the mould structure of the complexity such as pore-free mold；

2) manufacturing process of the utility model is simple and fast, saves a large amount of manpower and material resources, and controlling the quality of product becomes More easily, additional exhaust system secondary operation or clearance fit process are saved, the mold production cycle is substantially reduced；

3) uniform, irregular using the surface of tyre being fabricated of the utility model, better road holding can be obtained, is mentioned High security with it is handling.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.

Fig. 1 is one structural schematic diagram of embodiment of the mold of the utility model；

Fig. 2 is two structural schematic diagram of embodiment of the mold of the utility model；

Fig. 3 is three structural schematic diagram of embodiment of the mold of the utility model；

Fig. 4 is the example IV structural schematic diagram of the mold of the utility model；

Fig. 5 (a)-(c) is the sintering process schematic diagram of the utility model.

Wherein：1, entity part, 2, permeable portion, 3, machined portions, 4, air discharge duct, 5, connection bolt.

Specific embodiment：

The utility model is described in further detail with embodiment with reference to the accompanying drawing.

It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.

In the present invention, term for example "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", The orientation or positional relationship of the instructions such as " side ", "bottom" is to be based on the orientation or positional relationship shown in the drawings, only to facilitate chatting The relative for stating each component of the utility model or component structure relationship and determination, not refer in particular in the utility model either component or Element should not be understood as limiting the present invention.

In the utility model, term such as " affixed ", " connected ", " connection " be shall be understood in a broad sense, and expression can be fixation Connection, is also possible to be integrally connected or be detachably connected；It can be directly connected, the indirect phase of intermediary can also be passed through Even.Related scientific research or technical staff for this field can determine as the case may be above-mentioned term in the present invention Concrete meaning, should not be understood as limiting the present invention.

As background technique is introduced, the exhaust structure of existing tire-mold is to processing, assembly and dimension in the prior art Shield etc., all has higher requirements, and die cost is also higher, is not particularly suited for the deficiency of actual production, in order to solve skill as above Art problem, present applicant proposes a kind of tire-mold, the die body in tire-mold type bottom of chamber face is ventilative by aperture value≤0.15mm Structure is constituted.

The type chamber bottom surface portions of mold pattern part are designed using ventilation device, make the air discharge duct of itself and mold cavity bottom surface 4 match, and realize smoothly exhaust.And convex portion, that is, mold pattern part flower muscle and steel disc part are preferably airtight portion Point.Shown in specific embodiment one as shown in Figure 1, the flower muscle of mold pattern part and steel disc part are entity part, i.e. Fig. 1 or Entity part 1 in Fig. 2.

The thickness of mold pattern part is preferably 3mm~30mm.

Mold pattern partial rear is equipped with fixed column as a preferred method, and the effect of fixed column is by mold pattern Part and sliding block link together.

Specifically manufacturing process can be：Designed mold pattern block is generated into data model.Ventilative part with it is impermeable The part of gas is segmented into two parts modeling, then combines, can also be with a volume modeling.

Different sintering parameters are assigned respectively from air-locked part by ventilative, start to process using 3D printer.

Concrete operations parameter is different during the 3D printing of permeable portion and airtight part, is sintered by increasing Hot spot spacing in parameter, the spacing of hot spot, the numerical value being specifically greater than need basis when making hot spot spacing slightly larger than normal sintering The power of different laser, the speed of laser scanning, the size of the hot spot used are adjusted, and sintered formed of material is breathed freely Permeable portion 2 in structure, i.e. Fig. 1 or Fig. 2.

Such as when being sintered certain material, to reach normal mechanical property, the laser power used is selected as 280W, Laser scanning speed 700mm/ seconds, hot spot spacing was 0.11mm, and need to only increase hot spot spacing at this time can make material gas permeable.

Certainly, above-mentioned parameter is example, and design parameter can be adjusted with the adjustment of the extraneous factors such as the change of material Whole, these belong to the common knowledge that those skilled in the art have grasped or are adjusted what experiment can access, therefore Details are not described herein.

Certainly, according to the difference of equipment, the value of general hot spot spacing is preferably 0.05~0.3mm.Air permenbility size (hole Gap rate) it can according to need and be adjusted, only need to increase or reduce laser beam spacing can be realized.3D printing by adding up layer by layer Mode pile up mould product final out.

The thickness value of every layer of 3D printing can be adjusted according to the power of laser, scanning speed, preferably 0.01~ 0.3mm, each layer of laser beam scan path intersect certain angle with the last time, preferably 5 °~175 °, are formed irregular Aperture value≤0.15mm air-permeable molded body, rubber can more be avoided in sulfidation as far as possible by being further less than 0.10mm Sizing material enters in ventilating structure, while to guarantee that gas can be from being wherein discharged, aperture value is preferably greater than or equal to 0.005mm.Such as Fig. 5 (a)-(c) is detailed in sintering process schematic diagram, wherein and Fig. 5 (a) is first layer printed drawings, and Fig. 5 (b) is second layer printed drawings, Fig. 5 (c) is third layer printed drawings, wherein can have the heat affecting of laser when because of sintering between the sintered structure of every twice The structure of caused connection or adhesion, statement in detail in figure.

As an implementation, intersection certain angle can also be carried out with every N layers of laser beam scan path.N is according to every layer of material The thickness of material is configured, and can guarantee the bonding strength of material internal.N, which is preferably less than, is equal to 10.

Certain finished product may also need joint face, the mating surface of machined die knurling section, belong to machining portion Divide 3.

Certainly, above-mentioned utilization 3D printing method is a kind of preferred preparation method, can use other methods, this is practical Novel is to provide a kind of enforceable method, and those skilled in the art are under the enlightenment of the utility model, using other methods, Other modes carry out preparing the tire-mold that the die body of mold cavity bottom surface is made of aperture value≤0.15mm ventilating structure, These belong to the conventional replacement of those skilled in the art, ought to belong to the protection scope of the utility model.Specifically it may refer to Specific embodiment four and five.

For needing to guarantee high-intensitive, high-precision part in mold such as, with other component junction, location hole, cooperation The components such as face (later period is needed to machine) and steel disc flower muscle, i.e., airtight part can be using normal laser beam spacing (reasons It is a spot diameter by value).And entire type bottom of chamber face all uses permeable portion, thus reach same workpiece, different parts Different process and mechanical property, it is primary to print, it is whole to realize.

Ventilative and airtight part, can according to actual needs, flexible choice.

In specific embodiment two, as shown in Fig. 2, in decorative pattern without steel disc or when thin-wall construction, except what is mentioned in upper example Junction, location hole and mating surface, the sinterable permeable portion of rest part.

In specific embodiment three, as shown in Fig. 3 printing portion is connect with the another kind of non-print part in pattern block Mode, in specific embodiment four, as shown in Fig. 4 entire pattern block entire body is the tire-mold of sinterable permeable portion.

Specific embodiment four, with being distinguished as specific embodiment one, the structure of permeable portion is directly by having ventilative knot The material of structure is machined, such as ventilative aluminium alloy, ventilative steel, ventilative titanium alloy etc..Its internal ventilating structure can be with Different from the well-regulated structure of 3D printing, but guarantee to be vented, while rubber will not or less enter ventilative knot Among structure.The hole of ventilating structure or aperture are preferably smaller than equal to 0.3mm.Preferably, the hole of ventilating structure Less than or equal to 0.15mm, further it is less than 0.10mm, in sulfidation, can more avoids rubber size to enter as far as possible saturating In depressed structure, while to guarantee that gas can be from being wherein more smoothly discharged, aperture value is preferably greater than or equal to 0.005mm, leads to It crosses using this ventilating structure, mold reduces the design processing cost of mold without designing and processing gas vent.

Certainly, as those skilled in the art, the other parameters of ventilative material from other modes, can such as be adjusted to change Permeability, with guarantee rubber will not or it is less enter among ventilating structure, herein with regard to no longer further being extended With repeat.

The type of mold after processing can be inlayed by the way of individually processing for the part such as the flower muscle of mold, steel disc On the bottom surface of chamber.Can also flower muscle and mold be inlayed bottom surface and be integrally machined molding, only inlay steel disc in corresponding position.It can also root It needs not inlay steel disc according to tire.Entire mold can also all be processed using ventilative material.

Permeable portion can only include the part positioned at the position of mold cavity, and other positions still use non-breathable material Matter is processed, and then permeable portion is fixed on the non-breathable part of mold.Specific permeable portion and non-breathable part Setting can be as shown in Figure 1,2,3, 4.

Specific embodiment five, material selected by above-mentioned 3D printing can be not limited to following material：Aluminium alloy, steel, titanium close Gold, nickel alloy etc..

The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.

It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but it is not practical new to this The limitation of type protection scope, those skilled in the art should understand that, based on the technical solution of the present invention, ability Field technique personnel do not need to make the creative labor the various modifications or changes that can be made still in the protection model of the utility model Within enclosing.

Claims (13)

1. a kind of tire-mold, it is characterized in that：The die body in tire-mold type bottom of chamber face is ventilating structure；Tire-mold has multilayer Structure.

2. tire-mold as described in claim 1, it is characterized in that：Aperture value≤0.3mm of the ventilating structure.

3. tire-mold as claimed in claim 2, it is characterized in that：Aperture value≤0.15mm of the ventilating structure.

4. tire-mold as claimed in claim 2, it is characterized in that：Aperture value≤0.10mm of the ventilating structure.

5. tire-mold as claimed in claim 2, it is characterized in that：The aperture value of the ventilating structure is more than or equal to 0.005mm.

6. tire-mold as described in claim 1, it is characterized in that：The type chamber bottom surface portions of the knurling section of the tire-mold Using ventilating structure, match it with the air discharge duct of mold cavity bottom surface.

7. tire-mold as claimed in claim 6, it is characterized in that：The knurling section of the tire-mold with a thickness of 3mm~ 30mm。

8. tire-mold as described in claim 1, it is characterized in that：The flower muscle of the knurling section of the tire-mold and steel disc portion It is divided into airtight structure.

9. tire-mold as described in claim 1, it is characterized in that：The hot spot spacing of the ventilating structure of the tire-mold is greater than The hot spot spacing of airtight structure.

10. tire-mold as claimed in claim 6, it is characterized in that：The knurling section back side of the tire-mold is equipped with mould The fixed column that tool knurling section and sliding block link together.

11. tire-mold as described in claim 1, it is characterized in that：Each layer of thickness value is 0.01~0.3mm.

12. tire-mold as described in claim 1, it is characterized in that：The sintered path of ventilating structure is constituted between N layers every With certain angle, angular range is 5 °~175 °, and N is more than or equal to 1.

13. a kind of tire is prepared by tire-mold such as of any of claims 1-12.