KR20100052940A - A tire curing mould - Google Patents

A tire curing mould Download PDF

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Publication number
KR20100052940A
KR20100052940A KR1020080111840A KR20080111840A KR20100052940A KR 20100052940 A KR20100052940 A KR 20100052940A KR 1020080111840 A KR1020080111840 A KR 1020080111840A KR 20080111840 A KR20080111840 A KR 20080111840A KR 20100052940 A KR20100052940 A KR 20100052940A
Authority
KR
South Korea
Prior art keywords
tire
vulcanization mold
hole
blade
sipe
Prior art date
Application number
KR1020080111840A
Other languages
Korean (ko)
Inventor
현승민
Original Assignee
주식회사 엠케이테크놀로지
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 엠케이테크놀로지 filed Critical 주식회사 엠케이테크놀로지
Priority to KR1020080111840A priority Critical patent/KR20100052940A/en
Publication of KR20100052940A publication Critical patent/KR20100052940A/en

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Classifications

    • 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
    • B29D30/02—Solid tyres ; Moulds therefor
    • 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
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607—Constructional features of the moulds
    • B29D2030/0613—Means, e.g. sipes or blade-like elements, for forming narrow recesses in the tyres, e.g. cuts or incisions for winter tyres
    • 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
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607—Constructional features of the moulds
    • B29D2030/0617—Venting devices, e.g. vent plugs or inserts

Abstract

The present invention relates to a tire vulcanization mold for air discharge and block rigidity reinforcement.

The tire vulcanization mold for air discharge and block stiffness reinforcement of the present invention, in the tire vulcanization mold in which a blade is formed so that a sipe is formed on the tire to be molded during the molding of the tire, the movement passage of air generated during molding on the blade At least one through-hole is formed at the same time to connect the respective trade rubbers located on both sides of the sipe, the through-hole is formed of a long length of holes, the horizontal (horizontal) or vertical (vertical) direction Or it is formed in any one of diagonal direction (inclination) direction. The through hole is preferably formed with a cutting blade for cutting the trade rubber.

Description

Tire Vulcanization Mold for Air Release and Block Rigidity {A TIRE CURING MOULD}

The present invention relates to a tire vulcanization mold for air discharge and block rigidity reinforcement.

The tread portion of the tire generally includes a plurality of circumferentially and laterally extending grooves that form a ground engaging rubber element, which element is in the form of a block or rib or combination thereof. have.

The specific size and shape of the tread element contributes significantly to the overall performance of the tire and is therefore designed to achieve certain tire characteristics.

A large number of sipes are formed in the tire tread in order to give the tire good static friction on snow and ice. The sipe is a groove having a tread width, ie a width in the range of about 0.1% to 1% of the length of the arc of the tread surface in the axial direction.

In general, the sipes formed in the tire tread portion are formed by molds or machined molds, or steel blades inserted into the mold tread rings, usually the sipes are circumferentially around the tread in a straight, curved or zigzag fashion. It may extend in the directional or lateral direction and have a depth as deep as the main tread groove or greater than the groove depth.

Various techniques for sipes applied to such tire treads are provided.

In the tire shaping vulcanization mold of Korean Registered Utility Model No. 151424, a technique is provided in which a sipe member is tapered in the form of upper and lower light so that the sipe member is easily drawn out from the molded tire.

In the tire provided with the tire tread of Korean Laid-open Patent Publication No. 10-2007-113984, there is provided a technology relating to a tire including a multi-dimensional sipe and a blade used to manufacture such a sipe,

Forming sipe plates for forming sipes applied to pneumatic tires of Korean Patent Application Publication No. 10-2006-131498 and Korean Patent Application Publication No. 10-2006-131499 do not deteriorate noise, wet, snow performance, etc. There is provided a technique for forming sipe plates for forming sipes that can reinforce the geologic area between blocks.

However, the air generated during the molding of the tire is filled by the blade (sipe plate) installed to form the sipe provided in the above-described prior art and various other technologies. Residual phenomenon occurs in the tire, and the resulting tire is produced by the bad tire by the remaining air, there is a disadvantage in reducing the value of the product.

In addition, the sipe formed in the trade of the tire is usually characterized by imparting excellent static friction force to the tire on snow and ice, but the weakness of the block stiffness causes non-uniform wear during driving, foreign matter in the sipe causes damage to the tire There is this.

The present invention has been made to solve the above problems, and provides a tire vulcanization mold that is easy to discharge the air to remove the remaining air generated by the movement of the air generated when the tire is blocked by the blade forming the sipe The purpose is to.

In addition, the object of the present invention is to provide a tire vulcanization mold for reinforcing block stiffness such that the rigidity of the block is reduced by the sipe, and a trade rubber protrusion is formed between the block to reduce the jamming of foreign matter.

In order to achieve the above object, the tire vulcanization mold for air discharge and block stiffness reinforcement of the present invention is a tire vulcanization mold in which a blade is formed so that a sipe is formed in a tire to be molded during tire molding, and At least one through-hole is formed to provide a movement path and to allow the respective trade rubbers located on both sides of the sipe to be connected.

The through hole is formed as a long long hole, it is formed in any one of a horizontal (horizontal) direction, a vertical (vertical) direction or an oblique (inclined) direction.

The through hole is preferably formed with a cutting blade for cutting the trade rubber.

The blade is formed to form the sipe in at least one of straight or curved or zigzag form.

Due to the through-hole formed in the blade provided in the tire vulcanization mold of the present invention made as described above there is a feature that can remove the remaining air by moving the air generated when forming the tire.

In addition, the trade rubber is filled in the through-hole when the tire is formed by the through-holes formed in the blades installed in the tire vulcanization mold, and the filled trade rubber remains as a trade rubber protrusion between the block and the block after molding, thereby increasing the rigidity of the block. It has a feature to prevent foreign substances from getting caught in the sipe.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Tire vulcanization mold for air discharge and block rigidity of the present invention trade of the tire (2) is formed using the vulcanization mold (1) having a plurality of blades 30 installed in the mold 10 as shown in FIG. 20 is to form a plurality of sipes (21).

A plurality of blades installed to form the sipe 21 in the mold 10 is made of a thin plate has a variety of cross-sections, such as straight, curved, zigzag, etc., through holes are formed as shown in Figs. .

2 and 3 illustrate an embodiment of the blade of the present invention, the blade 30 is formed with at least one through hole 31, the through hole 31 is formed in the shape of a long hole horizontal It is arranged in the (horizontal) direction.

Figure 4 shows another embodiment of the blade of the present invention, the blade 40 is formed with at least one through hole 41, the through hole 41 is formed in the shape of a long hole vertical (vertical) ) Is arranged in the direction.

Figure 5 shows another embodiment of the blade of the present invention, at least one through-hole 51 is formed in the blade 50, the through-hole 51 is formed in the shape of a long hole diagonal ( Inclined).

Cutting blades 32, 42, and 52 are formed in the plurality of through holes 31, 41, and 51 formed in the blades 30, 40, and 50, respectively.

The cutting blades 32, 42, and 52 are formed by inclining the surface forming the through holes 31, 41, and 51, but may be formed on the inclined surface as a whole. It is preferred to be formed, more preferably is formed in the opposite direction to the through-hole adjacent. This is cut so that the trade rubber, which is filled in the through-holes, is formed on the sipes, as later explained.

The plurality of through holes 31, 41, and 51 formed in the blades 30, 40, and 50 are connected to the block 20a and the block 20b when the tire is formed, as shown in FIG. The air generated during molding is discharged by moving the block without blocking the movement between the blocks. In addition, the through holes 31, 41, and 51 are molded in the state in which the trade rubber is filled.

Cutting blades 32, 42, and 52 formed on the plurality of through holes 31, 41, and 51, respectively, are formed when the tire 2 and the vulcanization mold 1 are separated after molding as shown in FIG. , 42, 52 are cut in the through-holes 31, 41, and 51 so that the shaped trade rubber is cut to form protrusions 22 of the trade rubber in the sipe 21 as shown in FIGS. 1 and 8. .

The protrusion 22 of the trade rubber is formed between the block 20a and the block 20b to increase the rigidity of the block by the protrusion 22 formed between the block 20a and the block 20b as shown in FIG. 9. , To prevent the trapping of foreign matter such as stones in the sipe (21).

Hereinafter, the tire 2 is formed using the vulcanization mold 1 in which the blades 30 with the through holes 31 are installed.

As shown in FIG. 7, the trade 20 of the tire 2 is formed by using the vulcanization mold 1 in which the plurality of blades 30 are installed in the mold 10. At this time, the trade rubber is filled in the through hole 31 formed in the blade 30 during molding, and the air generated during the molding moves between the blocks 10a and 10b through the through holes 31 as shown by arrows. Is discharged through the air bleed hole (not shown) formed in the vulcanization mold (1).

When the trade rubber solidifies and molding is completed, the vulcanization mold 1 and the tire 2 are separated as shown in FIG. 8. In this case, the cutting blade 32 formed in the through hole 31 cuts one side of the trade rubber filled in the through hole 31 so that the projection 22 remains in the sipe 21.

1 is a perspective view of a partial cross-section of a vulcanization mold and a tire showing a preferred embodiment of the present invention.

Figure 2 is a perspective view of a blade installed in the vulcanization mold showing a preferred embodiment of the present invention.

Figure 3 is a front view of the blade installed in the vulcanization mold showing a preferred embodiment of the present invention.

Figure 4 is a front view of the blade installed in the vulcanization mold showing another preferred embodiment of the present invention.

Figure 5 is a front view of the blade installed in the vulcanization mold showing another preferred embodiment of the present invention.

6 is a cross-sectional view taken along the line A-A of FIG.

Figure 7 is a partial cross-sectional view of the vulcanization mold and tire when forming a tire.

8 is a partial cross-sectional view of a state in which the vulcanization mold and the tire are separated after the tire is formed.

Figure 9 is a partial cross-sectional view of the tire when the load is applied to the tire formed by the present invention.

[Explanation of symbols on the main parts of the drawings]

1: vulcanization mold 2: tire

10: Mold 20: Trade

20a, 20b: block 21: sipe

22: turning

30, 40, 50: blade

31, 41, 51: through hole

32, 42, 52: cutting blade

Claims (7)

In a tire vulcanization mold in which a blade is installed so that sipes are formed on a tire to be molded when the tire is formed, At least one through-hole is formed to provide a movement passage of the air generated during molding to the blade to connect the respective trade rubbers located on both sides of the sipe, the tire for air exhaust and block stiffness reinforcement Vulcanization mold. The method of claim 1, The through hole is a tire vulcanization mold for reinforcing air and block stiffness, characterized in that formed in the long length of the long hole. 3. The method of claim 2, The through hole is a tire vulcanization mold for air discharge and block rigidity characterized in that formed in the horizontal (horizontal) direction. 3. The method of claim 2, The through hole is a tire vulcanization mold for air discharge and block rigidity characterized in that formed in the vertical (vertical) direction. 3. The method of claim 2, The through hole is a tire vulcanization mold for air discharge and block stiffness, characterized in that formed in an oblique (inclined) direction. The method according to claim 1 or 2, The through hole is a tire vulcanization mold for air discharge and block stiffness, characterized in that the cutting blade for cutting the trade rubber in the through hole when the separation of the vulcanization mold from the molded tire. The method of claim 1, The blade is a tire vulcanization mold for air discharge and block stiffness, characterized in that for forming the sipe in any one or more forms of straight or curved or zigzag form.
KR1020080111840A 2008-11-11 2008-11-11 A tire curing mould KR20100052940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080111840A KR20100052940A (en) 2008-11-11 2008-11-11 A tire curing mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080111840A KR20100052940A (en) 2008-11-11 2008-11-11 A tire curing mould

Publications (1)

Publication Number Publication Date
KR20100052940A true KR20100052940A (en) 2010-05-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080111840A KR20100052940A (en) 2008-11-11 2008-11-11 A tire curing mould

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KR (1) KR20100052940A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021123634A1 (en) * 2019-12-19 2021-06-24 Compagnie Generale Des Etablissements Michelin Curing mould for tyres provided with a venting device and curing method therefor
KR20220162324A (en) * 2021-06-01 2022-12-08 넥센타이어 주식회사 A tire mold

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021123634A1 (en) * 2019-12-19 2021-06-24 Compagnie Generale Des Etablissements Michelin Curing mould for tyres provided with a venting device and curing method therefor
FR3105080A1 (en) * 2019-12-19 2021-06-25 Compagnie Generale Des Etablissements Michelin Baking mold for tires fitted with a venting device and associated baking process
KR20220162324A (en) * 2021-06-01 2022-12-08 넥센타이어 주식회사 A tire mold

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E601 Decision to refuse application