CN114347322A - Secondary vulcanization frock of tire typeface - Google Patents
Secondary vulcanization frock of tire typeface Download PDFInfo
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- CN114347322A CN114347322A CN202210035897.6A CN202210035897A CN114347322A CN 114347322 A CN114347322 A CN 114347322A CN 202210035897 A CN202210035897 A CN 202210035897A CN 114347322 A CN114347322 A CN 114347322A
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- tire
- secondary vulcanization
- mold
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- fonts
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Abstract
The invention discloses a secondary vulcanization tool for tire fonts, which comprises a secondary vulcanization mould and is characterized by also comprising: the pressure transmission block is provided with a limiting cavity, and the limiting cavity is matched with the shape of the secondary vulcanization mold; the heating plate, the pressure transmission piece sets up on the heating plate, the heating plate is used for exerting heat and pressure to the pressure transmission piece. The invention provides a secondary vulcanization tool for tire fonts, which can completely process the tire side font abnormity in the tire production process or the requirement of temporarily changing and adjusting the font, and the processed tire side font is consistent with the appearance of the normally produced tire; the appearance effect of the tire is improved, and the requirements of market customers are better met.
Description
Technical Field
The invention relates to the technical field of secondary vulcanization of tire fonts, in particular to a secondary vulcanization tool for tire fonts.
Background
In the tire production process, some bad defects of tire side fonts always appear due to various reasons, or temporary requirements of market customers require temporary change of partial tire side font characters, once the two conditions appear, a font template is directly used for mould pressing due to no special matched tool and a common processing mode, and the moulded fonts and the fonts of normal production and vulcanization of the tire have obvious difference, namely the font depth is shallow, and the font outline edge definition is poor.
Disclosure of Invention
The invention aims to provide a secondary vulcanization tool for tire fonts, which aims to solve the technical problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a secondary vulcanization frock of tire typeface, includes the secondary vulcanization mould utensil, still includes: the pressure transmission block is provided with a limiting cavity, and the limiting cavity is matched with the shape of the secondary vulcanization mold; the heating plate, the pressure transmission piece sets up on the heating plate, the heating plate is used for exerting heat and pressure to the pressure transmission piece.
In some embodiments, the secondary vulcanization mold includes a mold body having a mold font disposed therein, the mold font having a draft on the vulcanization cavity side wall.
In some embodiments, the mold font has a radiused chamfer at the top corner of the curing chamber.
In some embodiments, the thickness of the die body is not less than 8 mm.
In some embodiments, the mold tread surface is maintained in conformity with the tire sidewall curvature.
Drawings
FIG. 1 is a front view of a secondary vulcanization tool for tire fonts in an embodiment;
FIG. 2 is a side view of a post-cure tooling for tire fonts in an embodiment;
FIG. 3 is a front view of the secondary vulcanization mold in the embodiment;
FIG. 4 is a side view of the secondary vulcanization mold in the embodiment;
FIG. 5 is a partially enlarged view of a vulcanization cavity of a mold letter of the secondary vulcanization mold in the embodiment;
FIG. 6 is a diagram showing a state of use of the secondary vulcanization tooling for tire fonts in an embodiment;
illustration of the drawings: 1-pressure transmission block, 2-heating plate, 3-mould font, 4-mould body, 5-secondary vulcanization mould and 6-working surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
On the contrary, this application is intended to cover any alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the application as defined by the appended claims. Furthermore, in the following detailed description of the present application, certain specific details are set forth in order to provide a better understanding of the present application. It will be apparent to one skilled in the art that the present application may be practiced without these specific details.
The following will describe in detail a secondary vulcanization tool for tire fonts according to an embodiment of the present application with reference to fig. 1 to 6. It is to be noted that the following examples are only for explaining the present application and do not constitute a limitation to the present application.
In the embodiment of the present application, as shown in fig. 1 to 6, the secondary vulcanization tool for tire fonts includes a secondary vulcanization mold 5, and further includes: the pressure transmission block 1 is provided with a limiting cavity, and the limiting cavity is matched with the shape of the secondary vulcanization mold 5; and the heating plate 2 is provided with the pressure transmission block 1, and the heating plate 2 is used for applying heat and pressure to the pressure transmission block 1.
In some embodiments, the secondary vulcanization mold 5 comprises a mold body 4, the mold body 4 is provided with a mold font 3 therein, and the vulcanization cavity side wall of the mold font 3 has a slope. The design of the inclination is convenient for demolding after font forming. And the vertex angle of the vulcanization cavity of the mold font 3 is provided with an arc chamfer. The vertex angle department in the vulcanization chamber of mould typeface 3 has circular arc chamfer also for the convenience of the typeface shaping postdemolding, improves the efficiency and the convenience of drawing of patterns. The thickness of the die body 4 is not less than 8 mm.
In some embodiments, the working surface 6 of the mold font 3 is maintained in conformity with the tire sidewall curvature. Ensure that the tire can be better attached to the tire side wall when the character body is secondarily vulcanized, and improve the vulcanization quality.
The working principle of the tool is explained in detail as follows:
a secondary vulcanization method for tire fonts comprises the following steps:
step 1: rapidly permeating the secondary vulcanization rubber material into character lines of the secondary vulcanization mold 5 by using a pressure rubber scraping tool; before the secondary vulcanization rubber material is permeated into the character lines of the secondary vulcanization mold 5, preheating the secondary vulcanization mold 5, wherein the temperature of the preheated mold is not lower than 80 ℃.
Step 2: after repeated frictioning, removing redundant rubber outside the font body of the secondary vulcanization mold 5, and after the secondary vulcanization rubber in the font lines fully permeates into the mold, smearing a vulcanization special medicine on the surface of the rubber; the vulcanization accelerator TT is a vulcanization-dedicated chemical, and the weight ratio of the vulcanization-dedicated chemical to the vulcanization accelerator TT is 2:0.2 in general. So as to ensure that the surface of the character body subjected to secondary vulcanization and the surface of the tire are subjected to rapid molecular crosslinking.
And step 3: polishing and flattening the surface of the tire sidewall part needing secondary vulcanization and cleaning the surface by adopting No. 120 gasoline;
and 4, step 4: preheating is needed before heating the secondary vulcanization mould 5, and the temperature of the secondary vulcanization mould 5 after preheating is not lower than 160 ℃.
And 5: pressurizing the secondary vulcanization mold 5; the secondary vulcanization mould 5 special for vulcanization uses a pressure cylinder to drive pressure transmission, and the display value of a pressure gauge is not lower than 0.3 Mpa;
step 6: and (3) placing the secondary vulcanization mould 5 at the part of the tire with the character shape needing secondary vulcanization to complete the secondary vulcanization of the character shape on the sidewall of the tire. And (3) placing the secondary vulcanization mould 5 subjected to rubber scraping at the position of the tire needing secondary vulcanization, fully contacting the character surface of the secondary vulcanization mould 5 with the tire polishing position surface, pushing the preheated secondary vulcanization mould 5 by a pressure cylinder to apply vulcanization pressure for not less than 2min, and completing secondary vulcanization of the tire side character.
1. The design of the secondary vulcanization mould 5 used should include the following:
1) the depth of the font 3 of the secondary vulcanization mould 5 can be designed as required; different fonts need to be matched with different secondary vulcanization moulds 5.
2) The font 3 of the secondary vulcanization mould 5 adopts slope design and bottom arc treatment, so that demoulding is facilitated;
3) the bottom of the character is designed in a circular arc manner;
4) the thickness of the secondary vulcanization mould 5 is not less than 8 mm;
5) the matching design that the radian of the font working surface is 6 and the tire side circular arc is consistent is adopted.
2. The secondary vulcanized rubber material has the following indexes:
1) the Mooney index value of the rubber compound is between 40 and 50;
2) the scorching time of the rubber compound is 50-80 seconds;
3) the ozone aging time of the sizing material is not less than 72 h;
the performance index of the rubber material corresponding to the tire font needing secondary vulcanization at the tire side part needs to be superior to the performance of the tire side rubber material used in the normal production process of the tire, so that the normal operation of the secondary vulcanization of the tire font can be ensured.
3. Adopting a special frictioning and vulcanizing process:
1) adopting pressure frictioning to fully permeate the rubber material into the secondary vulcanization mould 5;
2) adopting a high-temperature (190-200 ℃) and short-time (70-100 seconds) vulcanization process;
4. the secondary vulcanization mould 5 is heated by adopting a heating plate 2:
1) the heating plate 2 is formed by combining a plane heating plate and a pressure transmission block 1;
2) the flat hot plate mainly heats and transfers heat;
3) the pressure transmission block 1 mainly applies pressure to the vulcanization mould to realize secondary vulcanization;
the secondary vulcanization tool for the tire fonts disclosed by the application has the following possible beneficial effects that the tool is not limited to:
the invention provides a secondary vulcanization tool for tire fonts, which can completely process the tire side font abnormity in the tire production process or the requirement of temporarily changing and adjusting the font, and the processed tire side font is consistent with the appearance of the normally produced tire; the appearance effect of the tire is improved, and the requirements of market customers are better met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a secondary vulcanization frock of tire typeface, includes secondary vulcanization mould (5), its characterized in that still includes:
the pressure transmission block (1) is provided with a limiting cavity, and the limiting cavity is matched with the shape of the secondary vulcanization mould (5);
the heating plate (2), pressure transmission piece (1) sets up on heating plate (2), heating plate (2) are used for exerting heat and pressure to pressure transmission piece (1).
2. The secondary vulcanization tooling for tire fonts as claimed in claim 1, wherein said secondary vulcanization mold (5) comprises a mold body (4), wherein mold fonts (3) are provided in said mold body (4), and the side walls of the vulcanization cavity of the mold fonts (3) have a slope.
3. The secondary vulcanization tooling for tire fonts as recited in claim 2, wherein the vertex angle of the vulcanization cavity of the mold font (3) has a circular arc chamfer.
4. The post-vulcanization tooling for tire fonts as recited in claim 2, wherein the thickness of the mold body (4) is not less than 8 mm.
5. The secondary vulcanization tooling for tire fonts as claimed in claim 2, wherein the working surface (6) of the mold font (3) is kept in conformity with the tire sidewall radian.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210035897.6A CN114347322A (en) | 2022-01-11 | 2022-01-11 | Secondary vulcanization frock of tire typeface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210035897.6A CN114347322A (en) | 2022-01-11 | 2022-01-11 | Secondary vulcanization frock of tire typeface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114347322A true CN114347322A (en) | 2022-04-15 |
Family
ID=81109771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210035897.6A Pending CN114347322A (en) | 2022-01-11 | 2022-01-11 | Secondary vulcanization frock of tire typeface |
Country Status (1)
| Country | Link |
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| CN (1) | CN114347322A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164699Y (en) * | 1993-09-03 | 1994-05-18 | 蔡琼瑶 | Forming mould for plastic zipper ejector |
| JP2005186299A (en) * | 2003-12-24 | 2005-07-14 | Yokohama Rubber Co Ltd:The | Method for forming convex signs on the surface of rubber products |
| CN204585652U (en) * | 2015-02-12 | 2015-08-26 | 王发钢 | A kind of car vacuum tire sectional repair vulcanizer |
| CN216682941U (en) * | 2022-01-11 | 2022-06-07 | 四川远星橡胶有限责任公司 | Secondary vulcanization frock of tire typeface |
-
2022
- 2022-01-11 CN CN202210035897.6A patent/CN114347322A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164699Y (en) * | 1993-09-03 | 1994-05-18 | 蔡琼瑶 | Forming mould for plastic zipper ejector |
| JP2005186299A (en) * | 2003-12-24 | 2005-07-14 | Yokohama Rubber Co Ltd:The | Method for forming convex signs on the surface of rubber products |
| CN204585652U (en) * | 2015-02-12 | 2015-08-26 | 王发钢 | A kind of car vacuum tire sectional repair vulcanizer |
| CN216682941U (en) * | 2022-01-11 | 2022-06-07 | 四川远星橡胶有限责任公司 | Secondary vulcanization frock of tire typeface |
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