CN206520133U - A kind of tire-mold for producing precured tread - Google Patents
A kind of tire-mold for producing precured tread Download PDFInfo
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- CN206520133U CN206520133U CN201720171316.6U CN201720171316U CN206520133U CN 206520133 U CN206520133 U CN 206520133U CN 201720171316 U CN201720171316 U CN 201720171316U CN 206520133 U CN206520133 U CN 206520133U
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Abstract
The utility model discloses a kind of tire-mold for producing precured tread, including a base, multiple interior active block I and interior active block II are provided with described base, described interior active block I and interior active block II are intervally arranged, one cyclic structure of formation, and outmost turns formation one and the occluding surface of tire tread close fit of the cyclic structure；In the outer ring of cyclic structure provided with the accommodating cavity that vulcanization tyre surface is formed between multiple ring-shaped distributed pattern blocks, and pattern block and interior active block I；The control loops being coaxial therewith are provided with the inner ring of the cyclic structure, it is connected between control loops and each interior active block I, interior active block II each via a push-pull device at fixed, and when control loops are by jack-up, interior active block I, interior active block II are dragged by push-pull device at fixed and moved to the center of the cyclic structure.
Description
Technical field
The utility model belongs to the technical field of renovation tire, and in particular to a kind of tyre mould for producing ring shaped precuring tire casing
Tool.
Background technology
China is global first big rubber country of consumption, while China is a rubber sources very deficient country, confession again
Need to be particularly thorny, this has promoted the fast development of tyre rebuilding industry, and old tire renovation amount is in cumulative year after year.Tyre rebuilding form
Turned over to be changed into based on bias tire by heat and turned over so that presulfurization method is cold based on radial-ply tyre.
Prevulcanized tire tread rubber has two kinds of ring-type and strip, and ring shaped precuring tire casing is unique prevulcanization and jointless wheel
Tire refurbishment system.
Ring shaped precuring tire casing is typically using vulcanization between high temperature, short time, it is necessary to special ring shaped precuring tire casing vulcanizing equipment
And particular manufacturing craft, investment cost is larger, and particularly engineering tire ring shaped precuring tire casing investment cost is bigger, and these vulcanizing equipments
It is strong with particular manufacturing craft specificity, it can not typically do other purposes.
Utility model content
In order to solve technical problem present in prior art, the utility model discloses a kind of precured tread that produces
Tire-mold, the utility model is met without buying vulcanizer again by tire plant, without buying whole set of die, only need to be existing
There is active mechanism in being added on mold foundation just to produce the demand of ring shaped precuring tire casing.
The technical solution adopted in the utility model is as follows：
A kind of tire-mold for producing precured tread, including a base, are provided with outer active machine on described base
Structure and interior active mechanism, described interior active mechanism include multiple interior active block I and interior active block II being arranged on base, institute
The interior active block I and interior active block II stated is intervally arranged, and forms a cyclic structure, and the outmost turns formation one of the cyclic structure
The individual occluding surface with tire tread close fit；Multiple ring-shaped distributed decorative patterns are provided with the outer ring of described cyclic structure
The accommodating cavity of vulcanization tyre surface is formed between block, and described pattern block and interior active block I, interior active block II；In the ring-type
The inner ring of structure is provided with the control loops being coaxial therewith, between described control loops and each interior active block I, interior active block II
It is connected each via a push-pull device at fixed, and when control loops are by jack-up, interior active block I, interior work is dragged by push-pull device at fixed
Network block II is moved to the center of the cyclic structure.
Further, described push-pull device at fixed include hinge seat and draw back plate, wherein hinge seat be fixed on interior active block I or
On interior active block II, rotating shaft I is installed on hinge seat, described draw back plate one end is arranged on rotating shaft I, and the other end passes through rotating shaft
II is connected with control loops.
Further, described draw back plate rotating shaft I connection ends are provided with notch so that rotating shaft I can be moved in notch.
Further, described control loops are a cyclic structure, the water vat ring seat cooperation of its inner ring and vulcanizer, outer ring
For petal-like projection, described projection is used to connect draw back plate；Described rotating shaft II is from raised one end through raised another
One end；Rotating shaft II connection can be facilitated by designing this projection.By the motion of water vat ring seat, drive control loops to do and transport up and down
It is dynamic, and then realize interior active block I, interior active block II motion.
Further, described interior active block I, interior active block II outer ring edge form an angled engagement surface, make
Obtaining multiple interior active block I can be individually by jack-up, or multiple interior active block II can be individually by jack-up；Thus achieve decorative pattern
Block staggeredly in move, it is to avoid interference problem.
Further, the cyclic structure inner ring of described interior active block I, interior active block II formation is additionally provided with and tire-mold
The connected inner ring of upper lid, described inner ring is located at the top of push-pull device at fixed, but does not influence the rise of push-pull device at fixed with falling.
Further, described outer active mechanism includes mounting ring, lead ring, gib block, limited block, top shoe and sliding block,
Described top shoe installs the outer ring covered on tire-mold, extend into lid T-slot, while being connected with described sliding block, uses
In manipulation and the radial motion of guide runner；Described mounting ring is arranged on the outer ring of top shoe, described mounting ring and lead ring
It is connected, described lead ring is inserted into after being connected with gib block in described sliding block, and spacing by limited block；In lead ring with being oriented to
When bar is moved up along the chute of sliding block, radial direction of the sliding block along base is displaced outwardly.
Further, described pattern block is embedded in the sliding block described in one；Pattern block embedded SMA actuators have decorative pattern, are used for
Make tyre tread, pattern block is connected with sliding block, can be according to different decorative patterns the need for, replacing pattern block.
Further, the mounting ring of mould is connected with vulcanizer upper plate, and upper lid is connected with vulcanizer segmented mold drive mechanism,
Base is connected with vulcanizer lower plate.
Specific application method is as follows：
Circular tread vulcanization terminates, and vulcanizer upper plate rises, and drives outer active mechanism to rise, vulcanizer segmented mold driving machine
Structure pushes lid, forces sliding block and pattern block to do radial outward movement motion, and pattern block departs from the tyre surface after vulcanization.Sliding block reaches maximum
After stroke, sliding block, pattern block, upper lid are moved up with lead ring, and upper cover strip is moved inner ring and moved up, and inner ring departs from interior active block I and II；
Subsequent vulcanizer entablature continues the rising translation driven mold first half and moves to upper side.Then, vulcanizer water
Cylinder ring seat promotes control loops to rise, and interior active block II moves inward disengaging circular tread first in the presence of push-pull device at fixed.Water
Cylinder ring seat continues to press on control loops rising, and interior active block I also begins to move inward disengaging ring-type in the presence of push-and-pull panel assembly
Tyre surface；After interior active block I and II is inwardly opened completely, the tyre surface that vulcanization is completed is taken out.Then tyre surface to be vulcanized, water are reentered into
Cylinder ring seat drives control loops to be displaced downwardly to ring seat and base contacts, and interior active block I and II outer shiftings under the promotion of draw back plate, which are propped up, to be treated
Vulcanize tyre surface.Vulcanizer entablature driven mold top half matched moulds, first inner ring promote the interior matched moulds of active block I and II in place,
Continue to move down then as entablature, decorative pattern BOB(beginning of block) is radially interior to be moved until complete matched moulds.
In mold closed condition, the rotating shaft I of the interior afterbody of active block I is located at the inner side of the notch of draw back plate I, interior active block II
The rotating shaft of afterbody is located at the outside of the notch of draw back plate II, and angled engagement surface has been used between interior active block I and interior active block II.
At the beginning of die sinking, push-and-pull panel assembly pulls rotating shaft first, drives in interior active block II and moves, because interior active block I is with
Contact surface between active block II is angled engagement surface, it is to avoid active block I in driving, so not by active in pulling
Block I then stayed in original position, thus achieve pattern block staggeredly in move, it is to avoid interference problem.
After pattern block is completed staggeredly, with the continuation of die sinking, push-and-pull panel assembly has also pulled turning for the interior afterbody of active block I
Axle, drives in interior active block I and moves, and completes die sinking action；
Because in mold closed condition, the rotating shaft of the interior afterbody of active block I is located at the inner side of the notch of draw back plate I, interior active
The rotating shaft of the afterbody of block II is located at the outside of push-pull device at fixed notch, so at matched moulds initial stage, draw back plate I promotes interior active block I first
Reach close to die-closed position, so as to prop up tyre surface to be vulcanized, interior active block II passes through interior central shoring during subsequent matched moulds
Tightly to die-closed position.
The beneficial effects of the utility model are as follows：
Ring shaped precuring tire casing generally requires special vulcanizing equipment, and these equipment investments are costly, the cycle is long, and this reality
Common tire forming vulcanizer can be used with new, general tire plant is without procuring equipment again, it is possible to produce ring-type
Precured tread, adds the use of original vulcanizer, realizes a tractor serves several purposes.
Ring shaped precuring tire casing usually requires particular manufacturing craft, and investment cost is larger, and the outer tire in this patent mould
Mould part can directly use the existing tire-mold of tire plant, only need supporting inner core part of the present utility model can be with life
Ring shaped precuring tire casing is produced, mould investment expense is few, it is fast to go into operation.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
The overall schematic of the tire-mold of precured tread is produced in Fig. 1 the utility model；
Fig. 2 is Fig. 1 top view；
Mould part structural representations of the Fig. 3 in mold closed condition；
Fig. 4 is Fig. 3 top view；
Mould part structural representations at the beginning of the Fig. 5 in mould die sinking；
Fig. 6 is Fig. 5 top view；
Mould part structural representation when Fig. 7 die sinkings action is completed；
Fig. 8 is Fig. 7 top view；
Fig. 9 do not set back after mould part structural representation；
Figure 10 is Fig. 9 top view；
Schematic diagram after active part and interior active part are all removed outside Figure 11；
Front view when active block II is lifted up in Figure 12；
Figure 13 Figure 12 top view；
Mould overall structure diagram when Figure 14 is molded；
In figure：Covered on 1,2 top shoes, 3 mounting rings, 4 lead rings, 5 gib blocks, 6 limited blocks, 7 bases, 8 sliding blocks, 9 pattern blocks,
10 rotating shafts, 11 vulcanizer water vat ring seats, active block II, 13 hinge seat II, 14 draw back plate II, 15 control loops, 16 draw back plates in 12
Active block I, 19 inner ring, 20 rotating shafts, 21 draw back plate I notches, 22 draw back plate II notches, 23 ring-type tires in I, 17 hinge seat I, 18
Face.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Embodiment 1
The utility model mould is mainly made up of two large divisions first：Outer active part and interior active part, outer active portion
Dividing mainly includes：Upper lid 1, mounting ring 3, lead ring 4, sliding block 8, base 7, pattern block 9, top shoe 2, gib block 5, limited block 6；It is interior
Active part mainly includes inner ring 19, interior active block I 18 and II 12, hinge seat I 17 and II 13, draw back plate I 16 and II 14, manipulation
Ring 15, is shown in Fig. 1,2, Fig. 3, Fig. 4；Entirety is in use, the mounting ring of mould is connected with vulcanizer upper plate, and upper lid is active with vulcanizer
Mould drive mechanism is connected, and base is connected with vulcanizer lower plate.
Outer active part is identical with general tire-mold, and this part zero of tire mould can be borrowed in use
Part, this mould can be vulcanized using common tire forming vulcanizer.Ring shaped precuring tire casing generally requires special sulphur
Change equipment, these equipment investments are costly, the cycle is long, and the utility model can use common tire forming vulcanizer, one
As tire plant without procuring equipment again, it is possible to produce ring shaped precuring tire casing, add the use of original vulcanizer,
Realize a tractor serves several purposes.
The concrete structure of specific outer active part is as follows：
Top shoe 2 install tire-mold on lid 1 outer ring, extend into lid 1T type grooves in, while with the described phase of sliding block 8
Even, for manipulating the radial motion with guide runner 8；Described mounting ring 3 is arranged on the outer ring of top shoe 2, described installation
Ring 3 is connected with lead ring 4, and described lead ring 4 is inserted into after being connected with gib block 5 in described sliding block 8, and is limited by limited block 6
Position；When lead ring 4 and chute of the gib block 5 along sliding block 8 are moved up, radial direction of the sliding block 8 along base 7 is displaced outwardly.
Pattern block is embedded in the sliding block described in one；Pattern block embedded SMA actuators have decorative pattern, for making tyre tread, flower
Line block is connected with sliding block, can be according to different decorative patterns the need for, change pattern block.
Control loops in interior active part are connected with vulcanizer water vat ring seat 11, by the motion of water vat ring seat, drive behaviour
Vertical ring moves up and down.The two ends of draw back plate I 16 and II 14 are connected to control loops and interior active block I 18 and II 12 with rotating shaft respectively
On upper afterbody, when control loops 15 move up and down, interior active block I 18 and II 12 is driven to do radial motion by draw back plate, so that complete
The folding of active part in into mould；
Specific structure is as follows：
Interior active block I18 and interior active block II12 include it is multiple, multiple interior active block I and interior active block II are intervally arranged,
One cyclic structure of formation, and outmost turns formation one and the occluding surface of tire tread close fit of the cyclic structure；It is interior
Active block I18, interior active block II12 outer ring edge form an angled engagement surface so that multiple interior active block I can be single
Solely by jack-up, or multiple interior active block II can be individually by jack-up；Thus achieve pattern block staggeredly in move, it is to avoid it is dry
Relate to problem.
Multiple ring-shaped distributed flowers are provided with the outer ring of the cyclic structure of interior active block I18 and interior active block II12 formation
The accommodating cavity of vulcanization tyre surface is formed between line block 9, and described pattern block 9 and interior active block I18, interior active block II12；
The inner ring of the cyclic structure is provided with the control loops 15 that are coaxial therewith, described control loops 15 and each interior active block I, interior
It is connected between active block II each via a push-pull device at fixed, and when control loops are by jack-up, is dragged by push-pull device at fixed interior
Active block I, interior active block II are moved to the center of the cyclic structure.
Interior active block I18 is connected by push-pull device at fixed I with control loops 15, and interior active block II12 passes through push-pull device at fixed II and behaviour
Vertical ring 15 is connected；
Push-pull device at fixed I, push-pull device at fixed II structure it is identical, push-pull device at fixed I include hinge seat I17 and draw back plate I16, wherein
Hinge seat I17 is fixed on interior active block I18, and rotating shaft I is provided with hinge seat I, and described draw back plate I16 one end, which is arranged on, to be turned
On axle I, the other end is connected by rotating shaft II with control loops.
Push-pull device at fixed II includes hinge seat II13 and draw back plate II14, and wherein hinge seat II13 is fixed on interior active block II
On, rotating shaft III is installed, described draw back plate II14 one end is arranged on rotating shaft III, and the other end is by turning on hinge seat II13
Axle IV is connected with control loops.
Draw back plate I and rotating shaft I, draw back plate II and rotating shaft III connection end are provided with notch 21,22 so that rotating shaft I can be
Moved in notch.
Control loops 15 are cyclic structure, and the water vat ring seat of its inner ring and vulcanizer coordinates, and outer ring is petal-like convex
Rise, described projection is used to connect draw back plate；Described rotating shaft II is from raised one end through the other end of projection；Design is this
Projection can facilitate rotating shaft II connection.By the motion of water vat ring seat, drive control loops to move up and down, and then realize interior living
Network block I, interior active block II motion.
The cyclic structure inner ring of interior active block I18, interior active block II12 formation is additionally provided with what is be connected with lid on tire-mold
Inner ring, described inner ring is located at the top of push-pull device at fixed, but does not influence the rise of push-pull device at fixed with falling.
The specific course of work is as follows：
As shown in Figure 3,4, in mold closed condition, the rotating shaft of the interior afterbody of active block I is located at the interior of the notch of draw back plate I
Side, the rotating shaft of the interior afterbody of active block II, which is located between the outside of the notch of draw back plate II, interior active block I, II, has used inclination to coordinate
Face.
At the beginning of die sinking, draw back plate II pulls rotating shaft first, drives in interior active block II and moves, because between interior active block I, II
Contact surface be angled engagement surface, it is to avoid active block I in driving, so do not stayed in then by the interior active block I pulled
Original position, be shown in Fig. 5, Fig. 6, thus achieve pattern block staggeredly in move, it is to avoid interference problem.
After pattern block is completed staggeredly, with the continuation of die sinking, draw back plate I has also pulled the rotating shaft of the interior afterbody of active block I, band
Moved in dynamic in active block I, complete die sinking action, see Fig. 7,8.
Because in mold closed condition, the rotating shaft of the interior afterbody of active block I is located at the inner side of the notch of draw back plate I, interior active
The rotating shaft of the afterbody of block II is located at the outside of the notch of draw back plate II, so at matched moulds initial stage, draw back plate I promotes interior active block I first
Reach close to die-closed position, so as to prop up tyre surface to be vulcanized, see Fig. 9,10, interior active block II during subsequent matched moulds,
Pass through inner ring stretching to die-closed position.
The vulcanization of circular tread 23 terminates, and vulcanizer upper plate rises, and drives mounting ring, lead ring to rise, and vulcanizer segmented mold drives
Motivation structure pushes lid, forces sliding block and pattern block to do radial outward movement motion, and pattern block departs from the tyre surface after vulcanization.Sliding block reaches
After range, sliding block, pattern block, upper lid are moved up with lead ring, and upper cover strip is moved inner ring and moved up, the interior active block I of inner ring disengaging,
II, see Figure 11.
Subsequent vulcanizer entablature continues the rising translation driven mold first half and moves to upper side.Then, vulcanizer water
Cylinder ring seat promotes control loops to rise, and interior active block II moves inward disengaging circular tread first in the presence of draw back plate II.Water
Cylinder ring seat continues to press on control loops rising, and interior active block I also begins to move inward disengaging ring-type tire in the presence of draw back plate I
Face, sees Figure 12,13.After interior active block is inwardly opened completely, the tyre surface that vulcanization is completed is taken out.Then it is reentered into and treats cured tire
Face, water vat ring seat drives control loops to be displaced downwardly to ring seat and base contacts, and the outer shifting under the promotion of draw back plate of interior active block, which is propped up, to be treated
Vulcanize tyre surface.Vulcanizer entablature driven mold top half matched moulds, first inner ring promote interior active block I, interior active block II to close
Mould in place, is shown in Figure 14, continues to move down then as entablature, and decorative pattern BOB(beginning of block) is radially interior to be moved until complete matched moulds, is shown in Fig. 1,2.
It is not new to this practicality although above-mentioned embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not pay the various modifications that creative work can make or deform still in protection model of the present utility model
Within enclosing.
Claims (10)
1. a kind of tire-mold for producing precured tread, including a base, are provided with outer active mechanism on described base
With interior active mechanism, it is characterised in that described interior active mechanism includes multiple interior active block I being arranged on base and interior work
Network block II, described interior active block I and interior active block II are intervally arranged, and form a cyclic structure, and the cyclic structure is most
Outer ring forms the occluding surface of one and tire tread close fit；In the outer ring of described cyclic structure provided with multiple annular in shape
The accommodating cavity of vulcanization tyre surface is formed between the pattern block of distribution, and described pattern block and interior active block I, interior active block II；
The control loops being coaxial therewith, described control loops and each interior active block I, interior work are provided with the inner ring of the cyclic structure
It is connected between network block II each via a push-pull device at fixed, and when control loops are by jack-up, by living in push-pull device at fixed dragging
Network block I, interior active block II are moved to the center of the cyclic structure.
2. the tire-mold of precured tread is produced as claimed in claim 1, it is characterised in that described push-pull device at fixed includes
Hinge seat and draw back plate, wherein hinge seat are fixed on interior active block I or interior active blocks II, and rotating shaft I, institute are provided with hinge seat
The draw back plate one end stated is arranged on rotating shaft I, and the other end is connected by rotating shaft II with control loops.
3. the tire-mold of precured tread is produced as claimed in claim 2, it is characterised in that described draw back plate rotating shaft I
Connection end is provided with notch so that rotating shaft I can be moved in notch.
4. the tire-mold of precured tread is produced as claimed in claim 2, it is characterised in that described control loops are one
The water vat ring seat of cyclic structure, its inner ring and vulcanizer coordinates, and outer ring is petal-like projection, and described projection is pushed away for connection
Arm-tie；Described rotating shaft II is from raised one end through the other end of projection.
5. the tire-mold of production precured tread as claimed in claim 1, it is characterised in that described interior active block I, interior
Active block II outer ring edge forms an angled engagement surface so that multiple interior active block I can be individually by jack-up, Huo Zheduo
Individual interior active block II can be individually by jack-up.
6. the tire-mold of production precured tread as claimed in claim 1, it is characterised in that described interior active block I, interior
The cyclic structure inner ring of active block II formation is additionally provided with covering the inner ring being connected on tire-mold, and described inner ring is filled positioned at push-and-pull
The top put, but the rise of push-pull device at fixed is not influenceed with falling.
7. the tire-mold of precured tread is produced as claimed in claim 1, it is characterised in that described outer active mechanism bag
Mounting ring, lead ring, gib block, limited block, top shoe and sliding block are included, described top shoe installs the outer ring covered on tire-mold,
It extend into lid T-slot, while being connected with described sliding block, for manipulating the radial motion with guide runner；Described peace
The outer ring that ring is arranged on top shoe is filled, described mounting ring is connected with lead ring, and described lead ring is inserted into after being connected with gib block
In described sliding block, and it is spacing by limited block；When lead ring and gib block are moved up along the chute of sliding block, sliding block is along base
Radial direction, be displaced outwardly.
8. the tire-mold of precured tread is produced as claimed in claim 7, it is characterised in that described pattern block is embedded in
In sliding block described in one.
9. the tire-mold of precured tread is produced as claimed in claim 8, it is characterised in that described pattern block inner chamber adds
Work has decorative pattern, for making tyre tread, can be according to different decorative patterns the need for, change pattern block.
10. the tire-mold of precured tread is produced as claimed in claim 7, it is characterised in that the mounting ring and sulphur of mould
Change machine upper plate is connected, and upper lid is connected with vulcanizer segmented mold drive mechanism, and base is connected with vulcanizer lower plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720171316.6U CN206520133U (en) | 2017-02-24 | 2017-02-24 | A kind of tire-mold for producing precured tread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720171316.6U CN206520133U (en) | 2017-02-24 | 2017-02-24 | A kind of tire-mold for producing precured tread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206520133U true CN206520133U (en) | 2017-09-26 |
Family
ID=59891851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720171316.6U Active CN206520133U (en) | 2017-02-24 | 2017-02-24 | A kind of tire-mold for producing precured tread |
Country Status (1)
| Country | Link |
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| CN (1) | CN206520133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501344A (en) * | 2019-01-04 | 2019-03-22 | 山东豪迈机械科技股份有限公司 | A kind of rigid core and tire-mold |
| CN110065183A (en) * | 2019-04-28 | 2019-07-30 | 青岛科技大学 | A kind of annular tire tread activating mold |
-
2017
- 2017-02-24 CN CN201720171316.6U patent/CN206520133U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501344A (en) * | 2019-01-04 | 2019-03-22 | 山东豪迈机械科技股份有限公司 | A kind of rigid core and tire-mold |
| CN109501344B (en) * | 2019-01-04 | 2024-06-04 | 山东豪迈机械科技股份有限公司 | Rigid core and tire mold |
| CN110065183A (en) * | 2019-04-28 | 2019-07-30 | 青岛科技大学 | A kind of annular tire tread activating mold |
| CN110065183B (en) * | 2019-04-28 | 2024-01-19 | 青岛科技大学 | Ring tread segmented mold |
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