Two-half type tire mold
阅读说明：本技术 一种两半式轮胎模具 (Two-half type tire mold ) 是由 耿鹏 刘川 杨鑫 于 2019-11-13 设计创作，主要内容包括：本发明公开了一种两半式轮胎模具,包括上模本体、上胎唇环、上卡盘座、上卡盘、下模本体、下胎唇环和下卡盘,还包括下卡盘座,下胎唇环的截面呈L形,下胎唇环与下模本体嵌接并通过螺栓连接,二者接合面的截面呈L形；下卡盘座与下胎唇环嵌接,二者接合面的截面呈L形,下胎唇环与下卡盘座经螺栓连接；下卡盘座的内径小于所述下模本体和下胎唇环的内径,下卡盘座的内侧向下延伸形成环形凸起,环形凸起与下胎唇环之间形成间隙；下卡盘通过螺栓安装在下卡盘座上,下卡盘座的上端面靠外一侧向上凸起,与下卡盘外侧共同围成用于卡住硫化用胶囊边缘的空间。该结构降低了轮胎脱模难度,杜绝了溢胶现象的发生,解决了模具设计失误造成的二次修理问题。(The invention discloses a two-half type tire mold which comprises an upper mold body, an upper tire bead ring, an upper chuck seat, an upper chuck, a lower mold body, a lower tire bead ring, a lower chuck and a lower chuck, and also comprises a lower chuck seat, wherein the section of the lower tire bead ring is L-shaped, the lower tire bead ring is embedded with the lower mold body and is connected with the lower mold body through a bolt, and the section of the joint surface of the upper mold body and the lower mold body is L-shaped; the lower chuck seat is embedded and connected with the lower bead ring, the section of the joint surface of the lower chuck seat and the lower bead ring is L-shaped, and the lower bead ring is connected with the lower chuck seat through a bolt; the inner diameter of the lower chuck seat is smaller than the inner diameters of the lower die body and the lower tire lip ring, the inner side of the lower chuck seat extends downwards to form an annular bulge, and a gap is formed between the annular bulge and the lower tire lip ring; the lower chuck is arranged on the lower chuck seat through a bolt, the upper end surface of the lower chuck seat is upwards protruded close to the outer side, and the upper end surface and the outer side of the lower chuck together form a space for clamping the edge of the vulcanizing capsule. The structure reduces the demoulding difficulty of the tire, avoids the occurrence of the glue overflow phenomenon, and solves the problem of secondary repair caused by the design error of the mold.)
1. The utility model provides a two half formula tire mould, includes last mould body, goes up the child lip ring, goes up the chuck seat, goes up chuck and lower mould body, lower child lip ring and lower chuck, go up the die cavity that encloses into the preparation tire between mould body and the lower mould body, its characterized in that: also comprises a lower chuck seat which is provided with a lower chuck seat,
the section of the lower tire lip ring is L-shaped, the lower tire lip ring is embedded and connected with the lower die body through a bolt, and the section of the joint surface of the lower tire lip ring and the lower die body is L-shaped;
the lower chuck seat is embedded and connected with the lower tire lip ring, the section of the joint surface of the lower chuck seat and the lower tire lip ring is L-shaped, and the lower tire lip ring is connected with the lower chuck seat through a bolt;
the inner diameter of the lower chuck seat is smaller than the inner diameters of the lower die body and the lower tire lip ring, the inner side of the lower chuck seat extends downwards to form an annular bulge, and a gap is formed between the annular bulge and the lower tire lip ring;
the lower chuck is installed on the lower chuck seat through a bolt, the upper end surface of the lower chuck seat protrudes upwards from one side close to the outer side, and a space for clamping the edge of the capsule for vulcanization is formed by the upper end surface of the lower chuck seat and the outer side of the lower chuck.
2. The mold half of claim 1, wherein: and a sinking space is formed on the lower die body close to the inner hole of the lower die body along the circumferential direction, and a nut for fastening the lower chuck seat and a bolt of the lower tire lip ring is positioned in the sinking space.
3. The mold half of claim 2, wherein: a plurality of first through holes are formed in the lower chuck in a circumferential direction, and bolts fastening the lower chuck and the lower chuck base are installed in the first through holes and sunk into the first through holes.
4. The mold half of claim 3, wherein: and a plurality of second through holes are formed in the lower die body along the circumferential direction, and bolts for fastening the lower die body and the lower tire lip ring are inserted into the second through holes from the bottom of the lower die body and are sunk into the second through holes.
Technical Field
The invention relates to the field of automobile tires, in particular to a two-half type tire mold.
Background
In recent years, with the spread of hot tides in sports vehicles such as ATV and UTV worldwide, there is an increasing global demand for tires of ATV and UTV. The tyre has the characteristics that the tyre pattern blocks are isolated, the pattern depth is deep, and partial patterns cover the tyre side so as to improve the traction performance of the tyre side. The design characteristics of the patterns increase the demolding difficulty of the two-half type tire mold after tire vulcanization.
Chinese utility model patent CN206306319U discloses a split type two halves tire mould, see fig. 1, this split type two halves tire mould includes half upper mold 1 and half lower mold 2, encloses into the
The two-half type tire mold is an upper half type tire mold and a lower half type tire mold, the tire tread and the tire side patterns are integrally processed, the problems of dislocation of the tire tread patterns and the tire side patterns and the occurrence of rubber edges can be avoided, but the two-half type tire mold can only be transversely opened and closed, and the tire demolding is difficult after the tire of ATV and UTV is vulcanized. The ease of demolding a finished tire is affected by the shape and depth of the tire pattern, and generally, the more complex the pattern shape and the deeper the pattern depth, the less easily the tire is demolded.
To the tire that is difficult to the drawing of patterns, can reduce the degree of difficulty of tire drawing of patterns through the interface position of adjustment capsule chuck and mould body when carrying out the mould design usually, but the effect of supplementary drawing of patterns of capsule chuck is more obvious, brings the excessive risk of gluing of chuck edge and mould body contact surface more easily, and the gluey limit that the excessive production of gluing can influence the outward appearance of tire.
The difficulty of tire demoulding cannot be accurately estimated at the beginning of the design of a part of tire molds, so that the interface between the capsule chuck and the mold body cannot be reasonably designed. Design errors can cause secondary repair work of the die after use due to the fact that glue overflows or the die is difficult to demold, product quality and production efficiency are reduced, and labor cost is increased.
Disclosure of Invention
The invention aims to provide a two-half tire mold structure which is convenient for demolding and easy for changing the interface of a mold body and a bladder chuck.
Therefore, the technical scheme of the invention is as follows:
a two-half type tire mold comprises an upper mold body, an upper tire lip ring, an upper chuck seat, an upper chuck, a lower mold body, a lower tire lip ring and a lower chuck, wherein a cavity for manufacturing a tire is formed by the surrounding of the upper mold body and the lower mold body; the lower chuck seat is embedded and connected with the lower tire lip ring, the section of the joint surface of the lower chuck seat and the lower tire lip ring is L-shaped, and the lower tire lip ring is connected with the lower chuck seat through a bolt; the inner diameter of the lower chuck seat is smaller than the inner diameters of the lower die body and the lower tire lip ring, the inner side of the lower chuck seat extends downwards to form an annular bulge, and a gap is formed between the annular bulge and the lower tire lip ring; the lower chuck is installed on the lower chuck seat through a bolt, the upper end surface of the lower chuck seat protrudes upwards from one side close to the outer side, and a space for clamping the edge of the capsule for vulcanization is formed by the upper end surface of the lower chuck seat and the outer side of the lower chuck.
Wherein, be close to its inner hole department on the lower mould body, form along the circumferencial direction and sink the space, the nut of the bolt of fastening lower chuck seat and lower child lip ring is located in sink the space.
Wherein, a plurality of first through holes are formed on the lower chuck along the circumferential direction, and bolts fastening the lower chuck and the lower chuck base are installed in the first through holes and sunk into the first through holes.
And a plurality of second through holes are formed in the lower die body in the circumferential direction, and bolts for fastening the lower die body and the lower tire lip ring are inserted into the second through holes from the bottom of the lower die body and are sunk into the second through holes.
According to the tire mold structure, when the tire is difficult to demold, the lower tire lip ring and the lower chuck seat can be fixed through the bolts, the bolts between the lower tire lip ring and the lower mold body are removed, the lower tire lip ring and the lower chuck seat act together to eject the tire out of the mold, and the tire demolding difficulty is reduced. When the tire is demoulded easily, the lower tire lip ring and the lower mold body can be fixed by the bolts, the bolts between the lower tire lip ring and the lower chuck seat are removed, the tire is demoulded naturally, and meanwhile, because the lower chuck seat is not in direct contact with the tire, the phenomenon of glue overflow of the interface of the lower tire lip ring and the lower chuck seat is avoided. Through the different matching, the function of flexibly determining the interface of the capsule chuck and the die body is realized, and the problem of secondary repair caused by the design error of the die is solved.
Drawings
FIG. 1 is a schematic partial structural cross-sectional view of a prior art tire mold;
FIG. 2 is a schematic sectional view of a partial structure of the tire mold of the present invention.
In the figure:
30. lower die body 30a, second through hole 30b, sinking space 31, lower bead ring
32. Lower chuck seat 32a, annular projection 33, lower chuck 33a, first through hole
40. Upper die body 41, upper tire lip ring 42, upper chuck seat 43, upper chuck
Detailed Description
The structure of the two-piece tire mold according to the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 2, the two-half tire mold of the present invention includes an upper mold body 40, an upper bead ring 41, an upper chuck seat 42, an upper chuck 43, a lower mold body 30, a lower bead ring 31, and a lower chuck 33, wherein a cavity for manufacturing a tire is defined between the upper mold body 40 and the lower mold body 30.
The invention is different from the prior art in that: a lower chuck base 32 is also included. Referring to fig. 2, the lower bead ring 31 has an L-shaped cross section, and the lower bead ring 31 is engaged with the lower mold body 30 and connected thereto by bolts, and the joint surface thereof has an L-shaped cross section. The lower chuck seat 32 is embedded with the lower bead ring 31, the section of the joint surface of the lower chuck seat 32 and the lower bead ring 31 is L-shaped, and the lower bead ring 31 is connected with the lower chuck seat 32 through a bolt.
The inner diameter of the lower chuck seat 32 is smaller than the inner diameters of the lower die body 30 and the lower bead ring 31, the inner side of the lower chuck seat 32 extends downwards to form an annular protrusion 32a, and a gap is formed between the annular protrusion 32a and the lower bead ring 31. The lower chuck 33 is mounted on the lower chuck base 32 through bolts, and the upper end surface of the lower chuck base 32 protrudes upwards towards the outer side and forms a space for clamping the edge of the vulcanization bladder together with the outer side of the lower chuck 33.
In addition, a plurality of sinking spaces 30b are formed in the lower die body 30 near the inner hole thereof in the circumferential direction, and nuts for fastening bolts of the lower chuck base 32 and the lower bead ring 31 are located in the sinking spaces 30b.
A plurality of first through holes 33a, in which bolts fastening the lower chuck 33 and the lower chuck base 32 are installed and sunk, are formed in the lower chuck 33 in a circumferential direction.
A plurality of second through holes 30a are formed in the lower die body 30 in a circumferential direction, and bolts fastening the lower die body and the lower bead ring are inserted from the bottom of the lower die body and are sunk into the second through holes 30a.
In the present invention, the structures of the upper mold body 40, the upper bead ring 41, the upper chuck base 42 and the upper chuck 43 are the same as the conventional structure shown in fig. 1, and are not described herein again.
When the tire is difficult to be demolded, the lower bead ring 31 and the lower chuck base 32 may be fixed by the bolts 30b, and the bolts 30a between the lower bead ring 31 and the lower mold body 30 may be removed. The lower tire lip ring 31 and the lower chuck seat 32 act together to move along with the central mechanism of the vulcanizing machine, and external force is applied to the tire bead part of the tire, so that the tire is ejected out of a mold, and the demolding difficulty of the tire is reduced.
When the tire is easy to demold, the lower bead ring 31 and the lower die body 30 can be fixed by the bolts 30a, the bolts 30b between the lower bead ring 31 and the lower chuck seat 32 are removed, the lower chuck seat 32 does not contact with the tire and exert external force on the tire when moving along with the central mechanism of the vulcanizing machine, and the tire is naturally demolded. Meanwhile, the lower chuck seat is not in direct contact with the tire, so that the phenomenon of glue overflow of the interface between the lower tire lip ring 31 and the lower chuck seat 30 is avoided.
Through the different matching, the function of flexibly determining the interface of the capsule chuck and the die body is realized, and the problem of secondary repair caused by the design error of the die is solved.
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