KR20100037853A - The air valve of tire mold and the air vent system of tire mold using it - Google Patents
The air valve of tire mold and the air vent system of tire mold using it Download PDFInfo
- Publication number
- KR20100037853A KR20100037853A KR1020080097173A KR20080097173A KR20100037853A KR 20100037853 A KR20100037853 A KR 20100037853A KR 1020080097173 A KR1020080097173 A KR 1020080097173A KR 20080097173 A KR20080097173 A KR 20080097173A KR 20100037853 A KR20100037853 A KR 20100037853A
- Authority
- KR
- South Korea
- Prior art keywords
- tire
- air
- vulcanization mold
- air valve
- mold
- Prior art date
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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
- B29D2030/0617—Venting devices, e.g. vent plugs or inserts
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- Moulds For Moulding Plastics Or The Like (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
The present invention relates to an air releasing structure of a tire vulcanization mold that minimizes the occurrence of extraction during tire vulcanization and facilitates the discharge of air. Particularly, the present invention is installed on the tread pattern portion of the tire vulcanization mold, and the outer surface and vulcanization of the green tire when the tire is vulcanized. The present invention relates to an air valve of a tire vulcanization mold and an air discharge structure of a tire vulcanization mold using the same so as to easily discharge the air existing between the molds and prevent the generation of the vent rubber.
In general, in the tire manufacturing process, the tire is produced in the molding machine by attaching and modifying various semi-finished products such as extrusion and cutting and beads to produce a green tire having a shape similar to the finished product. Through the process, the final product is produced.
In the vulcanization process, first, the green tire is placed in the vulcanization mold in the vulcanizer, the vulcanization mold is closed, and after applying heat and pressure for a certain time, the green tire is in close contact with the vulcanization mold and the tread pattern formed on the vulcanization mold is applied to the green tire. Refers to the process to be formed. At this time, in the vulcanization process, a mold manufactured to a size suitable for the size of the tire is used.
During the vulcanization process, if air remains between the vulcanization mold and the green case, the surface of the finished tire will be unevenly formed. Therefore, the air or gas remaining in the vulcanization mold must be removed after the vulcanization ends. In the related art, as shown in FIG. 1, a
However, according to the related art, when manufacturing the vulcanization mold constituting the vent line, as shown in FIG. 1, in order to secure the vent line of the vulcanization mold, a plurality of segments of the vulcanization mold are divided into a plurality of tread patterns. The uniformity of the split vent line should be ensured, and the manufacturing process is complicated, expensive vulcanization mold manufacturing cost and a long production period are required, and there is a difficulty that precision is required for assembly and disassembly even after manufacturing.
In addition, in order to discharge air or gas remaining in the vulcanization mold, conventionally, an air outlet having a diameter of about 1.2 mm to 1.6 mm is formed in upper and lower molds to achieve a desired purpose. Vented rubber or extruded rubber through the air outlet protrudes from the surface of the tire, or sticks out between the seams of the mold, which requires trimming to remove the rubber, which is often trimmed. The use of a knife has the disadvantage that the appearance of the tire is not clean after trimming.
The present invention has been made to solve the above problems, it is inserted into a plurality of through-holes formed in the body of the integral tire vulcanization mold that does not divide the segment to allow the remaining air to be discharged smoothly, as well as venting during vulcanization It is an object of the present invention to provide an air valve of a tire vulcanization mold and an air discharge structure of a tire vulcanization mold using the same, which can prevent the inflow of rubber to clean the appearance of the final tire product without trimming.
In order to achieve the above object, the present invention, in the tire vulcanization mold air valve is installed in the through-hole formed in the vulcanization mold used for the vulcanization of the green tire to discharge the air generated during the vulcanization of the tire, the air discharge in the center A body having a hole and a tension member assembled to the body and configured to open and close the air discharge hole to block the inflow of rubber.
In addition, in the present invention, the tension member is characterized by consisting of a cover for opening and closing the air discharge hole by a tension action, a coupling portion to be coupled to the body, and a tension connection portion connecting the cover and the coupling portion. do.
In the present invention, the length of the air valve is 3 ~ 10mm, the diameter is characterized in that 2 ~ 3.5mm.
In addition, the air discharging structure of the tire vulcanization mold of the present invention is a tire vulcanization mold air discharging structure in which the green tire is vulcanized to form a tread pattern, wherein the vulcanization mold is formed in the mold body so that an air valve can be installed. And a plurality of through-holes penetrating through the outside, and the tread pattern segment is integrally formed without being divided.
As described above, according to the present invention, the remaining air between the green tire and the tire vulcanization mold can be smoothly discharged, but rubber inflow is blocked due to the action of the tension plate, so that rubber extraction does not occur. Unlike the valve shape of the use of the tension member, it is convenient to operate, there is an advantage that is not limited by the cleaning (cleaning) method.
In addition, according to the present invention, by forming the tread segment of the tire vulcanization mold into one body without dividing it into many pieces, it is possible to reduce the manufacturing cost of the vulcanizing mold and to shorten the manufacturing time, and to easily assemble and dismantle even after the production. It can reduce the maintenance cost of vulcanization mold.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
2 is a plan view showing a part of the tire vulcanization mold using the air valve according to the present invention, Figure 3 is a perspective view showing an air valve of the tire vulcanization mold according to the present invention, Figure 4 is an air according to the present invention Figure 5 is a perspective view showing the tension member of the valve, Figure 5 is a perspective view showing the body of the air valve according to the present invention, Figure 6 is a partial cross-sectional view showing a state in which the air valve according to the present invention is installed in a vulcanization mold.
The tire vulcanization
As shown in FIG. 4, the
As shown in FIG. 5, the
The
On the other hand, it is preferable that the length of the said
In addition, as shown in Figure 2, the tire vulcanization mold air discharge structure of the present invention is provided with a plurality of through-
Tire vulcanization mold air valve of the present invention configured as described above and the vulcanization mold air discharge structure using the same, the phenomenon that the rubber is introduced into the
Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to the specific embodiments, and those skilled in the art may appropriately change within the scope described in the claims of the present invention. It will be possible.
1 is a plan view showing a portion of a conventional tire vulcanization mold.
Figure 2 is a plan view showing a part of the tire vulcanization mold using the air valve according to the present invention.
Figure 3 is a perspective view of the air valve of the tire vulcanization mold according to the present invention.
Figure 4 is a perspective view of the tension member of the air valve according to the present invention.
5 is a cross-sectional view showing the body of the air valve according to the present invention.
6 is a partial cross-sectional view showing an air valve installed in the vulcanization mold according to the present invention.
<Description of the symbols for the main parts of the drawings>
1: vulcanization mold 2: split vent line
3: through-hole 4: air valve
5: air outlet hole 6: body
6a: sintered part 7: tension member
7a:
7c: tension connection
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080097173A KR101010802B1 (en) | 2008-10-02 | 2008-10-02 | The air valve of tire mold and the air vent system of tire mold using it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080097173A KR101010802B1 (en) | 2008-10-02 | 2008-10-02 | The air valve of tire mold and the air vent system of tire mold using it |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100037853A true KR20100037853A (en) | 2010-04-12 |
KR101010802B1 KR101010802B1 (en) | 2011-01-25 |
Family
ID=42214910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020080097173A KR101010802B1 (en) | 2008-10-02 | 2008-10-02 | The air valve of tire mold and the air vent system of tire mold using it |
Country Status (1)
Country | Link |
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KR (1) | KR101010802B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101658312B1 (en) | 2015-05-14 | 2016-09-20 | 금호타이어 주식회사 | Vent Plug for Tire Cure Mold |
KR20160148964A (en) | 2015-06-17 | 2016-12-27 | 금호타이어 주식회사 | Vent Plug for Tire Cure Mold |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105946148A (en) * | 2016-06-27 | 2016-09-21 | 山东豪迈机械科技股份有限公司 | Exhaust device and tire mold |
KR101995773B1 (en) * | 2017-10-26 | 2019-07-03 | 금호타이어 주식회사 | Vent plug for tire vulcanizing mold |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200144037Y1 (en) | 1996-12-02 | 1999-06-15 | 홍건희 | A vulcanization mold structure for protecting a forming of vent rubber for a tire |
KR20010044037A (en) * | 2000-04-04 | 2001-06-05 | 최규진 | Box formed by bonding only at one facet |
JP4507805B2 (en) * | 2004-10-01 | 2010-07-21 | 横浜ゴム株式会社 | Tire mold and plug used for vent hole of tire mold |
JP4501650B2 (en) * | 2004-11-25 | 2010-07-14 | 横浜ゴム株式会社 | Tire mold and tire mold plug |
KR100683953B1 (en) * | 2005-09-29 | 2007-02-16 | 금호타이어 주식회사 | Air vent valve for tire mold |
-
2008
- 2008-10-02 KR KR1020080097173A patent/KR101010802B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101658312B1 (en) | 2015-05-14 | 2016-09-20 | 금호타이어 주식회사 | Vent Plug for Tire Cure Mold |
KR20160148964A (en) | 2015-06-17 | 2016-12-27 | 금호타이어 주식회사 | Vent Plug for Tire Cure Mold |
Also Published As
Publication number | Publication date |
---|---|
KR101010802B1 (en) | 2011-01-25 |
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