CN216506215U - Mould for inflation-free tire - Google Patents
Mould for inflation-free tire Download PDFInfo
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- CN216506215U CN216506215U CN202123039103.3U CN202123039103U CN216506215U CN 216506215 U CN216506215 U CN 216506215U CN 202123039103 U CN202123039103 U CN 202123039103U CN 216506215 U CN216506215 U CN 216506215U
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Abstract
The utility model discloses a mould for a non-pneumatic tyre, which belongs to the field of manufacturing of vulcanized tyre moulds and comprises: a lower side plate; a plurality of main sliders and a plurality of sub sliders; the adjacent main sliding block and the auxiliary sliding block form a first wedge mechanism, and the first wedge mechanism comprises a first wedge surface on the main sliding block, a second wedge surface on the auxiliary sliding block and a first connecting component arranged between the first wedge surface and the second wedge surface; the driving mechanism drives the main sliding block to move, and the main sliding block drives the auxiliary sliding block to move through the first connecting assembly; the driving mechanism can drive the main sliding block to move radially; by utilizing the first wedge mechanism formed between the adjacent main sliding block and the auxiliary sliding block, the main sliding block can drive the auxiliary sliding block to radially move along with the main sliding block during radial movement, so that radial contraction and expansion are realized, and the clamping stagnation phenomenon caused by the driving of the main sliding block and the auxiliary sliding block by the same mechanism is solved.
Description
Technical Field
The utility model relates to the field of manufacturing of vulcanized tire molds, in particular to a mold for an inflation-free tire.
Background
The inflation-free tire is a tire which realizes the shock absorption and buffering performance by only using the material and the structure of the tire without air pressure. The non-pneumatic tire mainly comprises a rubber solid tire and an open structure tire.
In recent years, many tire manufacturers are actively developing non-pneumatic tires to solve the problems of air leakage, tire burst and the like of the conventional tires. Wherein comparatively ripe exempt from pneumatic tire is open structure tire, and its structure is many to be constituteed by tread rubber, supporter etc. because tread rubber shape, structure are different with traditional tire, can't use traditional tire mould to vulcanize.
The inner side of a traditional tire mold is usually a rubber bladder, and in the vulcanization process, the rubber bladder needs to be inflated and pressurized to complete the shaping and vulcanization of the tire, but the inner side of the tread of the non-pneumatic tire needs to be connected and matched with a support body, the requirements on the roundness and the dimensional accuracy of the inner side of the non-pneumatic tire are high, and the flexible rubber bladder cannot meet the accuracy requirements of the non-pneumatic tire.
The prior inflation-free tire mold usually utilizes a central mechanism to indirectly drive all core blocks, and the core blocks move successively by setting different tapers, thereby realizing the radial contraction and expansion of an internal rigid structure. The scheme requires high matching precision among all the core blocks, and the core blocks are easy to generate clamping stagnation in the moving process in actual production.
SUMMERY OF THE UTILITY MODEL
For the problems in the prior art, the die for the non-pneumatic tire provided by the utility model has the advantages that the driving mechanism can be used for driving the main sliding block to move radially; by utilizing a first wedge mechanism formed between the adjacent main sliding block and the auxiliary sliding block, the main sliding block can drive the auxiliary sliding block to radially move along with the main sliding block when moving radially, so that radial contraction and expansion of an internal rigid structure at different speeds are realized, and the requirement on the matching precision between parts is reduced; and because the main sliding block provides the power for the radial movement of the auxiliary sliding block, the clamping stagnation phenomenon caused by the driving of the main sliding block and the auxiliary sliding block by the same mechanism is solved.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a mould for a non-pneumatic tire, which comprises:
a lower side plate;
the main sliding blocks and the auxiliary sliding blocks are circumferentially staggered on the lower side plate, and both the main sliding blocks and the auxiliary sliding blocks are movably arranged on the lower side plate along the radial direction; the adjacent main sliding block and the adjacent auxiliary sliding block form a first wedge mechanism, the first wedge mechanism comprises a first wedge surface on the main sliding block, a second wedge surface on the auxiliary sliding block and a first connecting component arranged between the first wedge surface and the second wedge surface, the first wedge surface gradually expands outwards from outside to inside along the radial direction of the main sliding block, and the second wedge surface gradually contracts inwards from outside to inside along the radial direction of the auxiliary sliding block;
and the driving mechanism drives the main sliding block to move, and the main sliding block drives the auxiliary sliding block to move through the first connecting component.
As a preferable technical solution, the driving mechanism is movable between a first position and a second position along the axial direction of the lower side plate, and the first position is located below the second position; when in the first position, the outer surfaces of the main sliding block and the auxiliary sliding block form a continuous supporting surface for supporting the inner side of the green tire; when the second position is reached, the main sliding block and the auxiliary sliding block both contract inwards, and the outer diameters of the main sliding block and the auxiliary sliding block are both smaller than the inner diameter of the tire blank.
As a preferred technical scheme, the device also comprises a base, an upper cover, a guide ring, a sliding block and a pattern block; the lower side plate is fixed on the base, the upper cover is positioned right above the lower side plate, the guide ring and the sliding block form a second wedge mechanism, and the pattern block is fixed on the sliding block; the upper cover can move between a third position and a fourth position; when the tire is in the third position, the tire is in a mold closing state, the driving mechanism is located at the first position, and the pattern block, the main sliding block and the auxiliary sliding block form a cavity for accommodating a tire blank; and when the fourth position is in the mold opening state.
As a preferred technical scheme, a support ring is arranged below the upper cover; when the upper cover is located at the third position, the support ring is respectively abutted against the main sliding block and the auxiliary sliding block.
As a preferred technical solution, a plurality of first guide grooves distributed radially are arranged on the lower side plate, a first guide block capable of sliding along the first guide grooves is arranged in the first guide grooves, and the first guide block is fixedly connected with the main sliding block or the auxiliary sliding block respectively;
or, the main sliding block and the auxiliary sliding block are both provided with first guide grooves which are arranged in the radial direction, the first guide blocks which can slide along the first guide grooves are arranged in the first guide grooves, and the first guide blocks are fixedly connected with the lower side plate.
As a preferable technical solution, the first connecting assembly includes a second guide groove disposed on the first wedge surface, a second guide block slidable along the second guide groove is disposed in the second guide groove, the second guide block is fixedly connected to the second wedge surface, and a length direction of the second guide groove is perpendicular to an axial direction of the lower side plate;
or, the first connecting assembly includes the second guide groove disposed on the second wedge surface, the second guide groove is internally provided with the second guide block capable of sliding along the second guide groove, the second guide block is fixedly connected with the first wedge surface, and the length direction of the second guide groove is perpendicular to the axial direction of the lower side plate;
the second guide groove is a T-shaped groove, and the second guide block is a T-shaped block.
Preferably, the inner diameter of the main slide block is smaller than the inner diameter of the sub slide block, and the portion of the main slide block having the inner diameter smaller than the inner diameter of the sub slide block forms an extension, and a gap is provided between the extensions of the adjacent main slide blocks.
As a preferable technical solution, the driving mechanism and all the main sliding blocks form a third wedge mechanism, the third wedge mechanism includes a third wedge surface on the driving mechanism and a fourth wedge surface on the main sliding block, and the third wedge surface and the fourth wedge surface are gradually expanded outward along a direction away from the lower side plate;
a third guide groove is formed in the third wedge surface, a third guide block capable of sliding along the third guide groove is arranged in the third guide groove, and the third guide block is fixedly connected with the fourth wedge surface; or the third guide groove is formed in the fourth wedge surface, the third guide block which can slide along the third guide groove is arranged in the third guide groove, and the third guide block is fixedly connected with the third wedge surface;
the third guide groove is a T-shaped groove, and the third guide block is a T-shaped block.
As a preferred technical solution, an included angle between the first wedge surface and the radial direction of the main sliding block is 15 to 45 degrees; the axial included angle between the third wedge surface and the lower side plate is 15-45 degrees.
As a preferable technical solution, patterns are provided on the outer surfaces of the main sliding block and the sub sliding block.
The beneficial effects of the utility model are as follows:
1. the driving mechanism can drive the main sliding block to move radially; by utilizing a first wedge mechanism formed between the adjacent main sliding block and the auxiliary sliding block, the main sliding block can drive the auxiliary sliding block to radially move along with the main sliding block when moving radially, so that radial contraction and expansion of an internal rigid structure at different speeds are realized, and the requirement on the matching precision between parts is reduced; and because the main sliding block provides the power for the radial movement of the auxiliary sliding block, the clamping stagnation phenomenon caused by the driving of the main sliding block and the auxiliary sliding block by the same mechanism is solved.
2. The main sliding block and the auxiliary sliding block used when vulcanizing the inner side pattern of the tread of the non-pneumatic tire are both rigid supports, so that the dimensional accuracy of the inner side pattern and the dimensional accuracy of the inner diameter of the tread can be ensured.
3. The utility model can form the tire tread of the inflation-free tire with patterns on the inner side and the outer side through one-time vulcanization, thereby improving the vulcanization efficiency, improving the relative position precision of the inner pattern and the outer pattern and improving the product quality.
4. The utility model is basically consistent with the vulcanizing action of a common segmented mold, can directly use the existing vulcanizing machine and the segmented mold shell, reduces the investment cost, and has simple structure and simple and convenient operation.
5. The main sliding block and the auxiliary sliding block can conveniently move in the radial direction, and are convenient for placing a tire blank and taking out a tire.
Drawings
FIG. 1 is a schematic view of the overall structure of one embodiment of a mold for a non-pneumatic tire according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a top view of the main slide block and the auxiliary slide block with the drive mechanism in the first position;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;
FIG. 6 is a top view of the main slide block and the auxiliary slide block with the drive mechanism in the second position;
FIG. 7 is a schematic view of the driving mechanism at a second position in the mold-open state;
FIG. 8 is a schematic view of the driving mechanism in a first position in the mold-open state;
fig. 9 is a schematic view in a mold clamping state.
In the figure: 1-lower side plate, 11-first guide groove, 12-first guide block, 2-main sliding block, 21-first wedge surface, 22-fourth wedge surface, 23-extension part, 3-auxiliary sliding block, 31-second wedge surface, 32-second guide groove, 33-second guide block, 4-driving mechanism, 41-third wedge surface, 42-third guide groove, 43-third guide block, 5-green tire, 61-base, 62-upper cover, 63-guide ring, 64-sliding block, 65-pattern block and 66-support ring.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 9, an embodiment of a mold for a non-pneumatic tire according to the present invention includes:
a lower side plate 1 for supporting the main slide block 2 and the sub slide block 3;
the sliding device comprises a plurality of main sliding blocks 2 and a plurality of auxiliary sliding blocks 3, wherein the main sliding blocks 2 and the auxiliary sliding blocks 3 are arranged on a lower side plate 1 in a circumferential staggered manner, and the main sliding blocks 2 and the auxiliary sliding blocks 3 are arranged on the lower side plate 1 in a movable manner along the radial direction; the adjacent main sliding block 2 and the auxiliary sliding block 3 both form a first wedge mechanism, and the first wedge mechanism can drive the auxiliary sliding block 3 to correspondingly move when the main sliding block 2 moves in the radial direction; the first wedge mechanism comprises a first wedge surface 21 on the main sliding block 2 and a second wedge surface 31 on the auxiliary sliding block 3, the first wedge surface 21 gradually expands from outside to inside along the radial direction of the main sliding block 2, the second wedge surface 31 gradually contracts from outside to inside along the radial direction of the auxiliary sliding block 3, and when the main sliding block 2 moves inwards in the radial direction, the distance between the two first wedge surfaces 21 on the main sliding block 2 is reduced, so that the adjacent auxiliary sliding blocks 3 can be driven to move inwards in the radial direction; on the contrary, when the main sliding block 2 moves outwards in the radial direction, the adjacent auxiliary sliding blocks 3 can be driven to move outwards in the radial direction;
the driving mechanism 4 and the driving mechanism 4 drive the main sliding block 2 to move, and the main sliding block 2 drives the auxiliary sliding block 3 to move along with the main sliding block through the first wedge mechanism, so that the radial contraction and expansion of the rigid structure in the die can be realized at different speeds.
Specifically, the driving mechanism 4 can move along the axial direction of the lower side plate 1, the driving mechanism 4 and all the main sliding blocks 2 form a third wedge mechanism, and when the driving mechanism 4 moves along the axial direction of the lower side plate 1, the third wedge mechanism can drive the main sliding blocks 2 to move correspondingly; the third wedge mechanism comprises a third wedge surface 41 on the driving mechanism 4 and a fourth wedge surface 22 on the main sliding block 2, the third wedge surface 41 and the fourth wedge surface 22 are gradually expanded outwards along the direction far away from the lower side plate 1, and when the driving mechanism 4 moves upwards along the axial direction of the lower side plate 1, all the main sliding blocks 2 can be driven to move inwards in the radial direction by utilizing the matched third wedge surface 41 and the matched fourth wedge surface 22; on the contrary, when the driving mechanism 4 moves downwards along the axial direction of the lower side plate 1, all the main sliding blocks 2 can be driven to move outwards in the radial direction;
the drive mechanism 4 is movable between a first position and a second position, the first position being located below the second position; in the first position, the outer surfaces of the main sliding block 2 and the auxiliary sliding block 3 form a continuous supporting surface for supporting the inner side of the tire blank 5, and at the same time, the main sliding block 2 and the auxiliary sliding block 3 form an internal rigid structure for supporting the non-pneumatic tire; when the tire is in the second position, the main sliding block 2 and the auxiliary sliding block 3 both contract inwards, the outer diameters of the main sliding block 2 and the auxiliary sliding block 3 are smaller than the inner diameter of the tire blank 5, and at the moment, the main sliding block 2 and the auxiliary sliding block 3 are both separated from the tire blank 5 or a tire formed by vulcanization, so that the tire blank 5 can be placed before vulcanization or the formed tire can be taken down after vulcanization.
Note that, in fig. 6, the dashed lines surrounding the main slider 2 and the sub slider 3 are schematic inner diameter lines of the blank 5.
In this embodiment, referring to fig. 1, 7, 8 and 9, the present invention further includes a base 61, an upper cover 62, a guide ring 63, a slider 64 and a pattern block 65; the lower side plate 1 is fixed on the base 61, the upper cover 62 is positioned right above the lower side plate 1, the guide ring 63 and the sliding block 64 form a second wedge mechanism, and the pattern block 65 is fixed on the sliding block 64; the upper cover 62 is movable between a third position and a fourth position; in the third position, the mold closing state is achieved, the driving mechanism 4 is located at the first position, and the pattern block 65, the main sliding block 2 and the auxiliary sliding block 3 form a cavity for accommodating the green tire 5; when the mold is in the fourth position, the mold is opened; the structures of the base 61, the upper cover 62, the guide ring 63, the sliding block 64 and the pattern block 65 of the utility model are consistent with the structure of the existing segmented mold, and the working process is also consistent, which is not described herein again.
On the basis of the foregoing embodiment, referring to fig. 1 and 9, a support ring 66 is disposed below the upper cover 62; when the upper cover 62 is in the third position, the support rings 66 abut against the main slide block 2 and the sub slide block 3, respectively, and at this time, the support rings 66 can make the main slide block 2 and the sub slide block 3 uniformly stressed, and can effectively resist deformation caused by mold clamping force during vulcanization.
In this embodiment, referring to fig. 1 and fig. 3, a plurality of first guide grooves 11 distributed radially are disposed on the lower side plate 1, first guide blocks 12 capable of sliding along the first guide grooves 11 are disposed in the first guide grooves 11, the first guide blocks 12 are respectively fixedly connected with the main sliding block 2 or the auxiliary sliding block 3, and the main sliding block 2 and the auxiliary sliding block 3 can respectively move radially on the lower side plate 1; in other embodiments, the first guide groove 11 may also be radially disposed on the main sliding block 2 and the sub sliding block 3, a first guide block 12 that can slide along the first guide groove 11 is disposed in the first guide groove 11, the first guide block 12 is fixedly connected to the lower side plate 1, and similarly, the main sliding block 2 and the sub sliding block 3 can respectively move radially on the lower side plate 1; specifically, the first guide block 12 may be provided with a T shape, and the shape of the first guide groove 11 matches the shape of the first guide block 12; in other embodiments, the first guide block 12 may also be in a Y-shape or a straight shape, and accordingly, the shape of the first guide slot 11 should match the shape of the first guide block 12, so that the first guide block 12 can move in the first guide slot 11.
In this embodiment, referring to fig. 4, 5 and 6, a second guide groove 32 is disposed on the second wedge surface 31, a second guide block 33 capable of sliding along the second guide groove 32 is disposed in the second guide groove 32, and the second guide block 33 is fixedly connected to the first wedge surface 21, so that the relative movement between the main sliding block 2 and the auxiliary sliding block 3 can be realized; the length direction of the second guide groove 32 is perpendicular to the axial direction of the lower side plate 1, so that the relative movement between the main sliding block 2 and the auxiliary sliding block 3 can be ensured to only occur in a plane parallel to the lower side plate 1, namely, the main sliding block 2 and the auxiliary sliding block 3 can be ensured to stably move in the radial direction; in other embodiments, the second guide groove 32 may also be disposed on the first wedge surface 21, a second guide block 33 that can slide along the second guide groove 32 is disposed in the second guide groove 32, and the second guide block 33 is fixedly connected to the second wedge surface 31, and can also realize the relative movement between the main sliding block 2 and the auxiliary sliding block 3; specifically, the second guide block 33 may be provided with a T shape, and the shape of the second guide groove 32 matches the shape of the second guide block 33; in other embodiments, the second guide block 33 may be Y-shaped.
On the basis of the foregoing embodiment, referring to fig. 4 and fig. 6, the inner diameter of the main sliding block 2 is smaller than the inner diameter of the sub sliding block 3, an extension 23 is formed on a portion of the main sliding block 2 having the inner diameter smaller than the inner diameter of the sub sliding block 3, and the fourth wedge surface 22 may be disposed on the extension 23 to avoid interference between the first wedge surface 21 and the fourth wedge surface 22; gaps exist between the extending parts 23 of the adjacent main sliding blocks 2, and the adjacent extending parts 23 are ensured not to obstruct the radial inward movement of the main sliding blocks 2.
In this embodiment, referring to fig. 1, fig. 2, fig. 7, fig. 8 and fig. 9, a third guide groove 42 is disposed on the third wedge surface 41, a third guide block 43 capable of sliding along the third guide groove 42 is disposed in the third guide groove 42, and the third guide block 43 is fixedly connected to the fourth wedge surface 22, so that when the driving mechanism 4 moves along the axial direction of the lower side plate 1, the main sliding block 2 is driven to move radially; the length direction of the third guide groove 42 and the axial direction of the lower side plate 1 are positioned in the same plane, so that the stability of the driving mechanism 4 driving the main sliding block 2 to move radially can be effectively ensured; in other embodiments, the third guide groove 42 may also be disposed on the fourth wedge surface 22, a third guide block 43 capable of sliding along the third guide groove 42 is disposed in the third guide groove 42, the third guide block 43 is fixedly connected with the third wedge surface 41, and the driving mechanism 4 can drive the main sliding block 2 to move radially as well; specifically, the third guide block 43 may be provided with a T shape, and the shape of the third guide groove 42 matches the shape of the third guide block 43; in other embodiments, the third guiding block 43 can also be provided with a Y-shape, and correspondingly, the shape of the third guiding slot 42 should also match the shape of the third guiding block 43; further, in order to ensure the stability of the relative movement between the driving mechanism 4 and the main sliding block 2, two third guide blocks 43 may be disposed in each third guide groove 42.
It should be noted that the driving mechanism 4 should be connected with a driving assembly for driving the driving mechanism to move along the axial direction of the lower side plate 1, preferably, the driving assembly is a vulcanizing machine central mechanism, and during vulcanization, the movement of the driving mechanism 4 can be controlled by controlling the vulcanizing machine; of course, in other embodiments, the driving assembly may also be a hydraulic cylinder connected to the driving mechanism 4, and the movement of the driving mechanism 4 may be controlled by controlling the extension and contraction of the hydraulic cylinder.
Note that, referring to fig. 1, 4, 5, 6, 7, 8, and 9, the angle between the first wedge surface 21 and the radial direction of the main slider 2 is preferably 15 to 45 °, so as to ensure smooth movement between the main slider 2 and the sub slider 3; the angle between the third wedge surface 41 and the axial direction of the lower side plate 1 is preferably 15-45 °, which can ensure smooth movement between the driving mechanism 4 and the main sliding block 2.
It should be noted that, the main slider 2 and the sub slider 3 may be provided with patterns on the outer surfaces thereof, and the patterns on the main slider 2 and the sub slider 3 may form an inner pattern of the tread of the non-pneumatic tire during vulcanization.
The specific working mode of the utility model is as follows:
referring to fig. 7, the upper cover 62, the guide ring 63, the slider 64, the pattern block 65 and the support ring 66 rise to the fourth position along with the upper hot plate of the vulcanizer, at this time, the mold is in a mold opening state, the center mechanism of the vulcanizer drives the driving mechanism 4 to rise to the second position, the driving mechanism 4 drives the main slider 2 to radially contract inwards, the main slider 2 drives the auxiliary slider 3 to radially contract inwards while radially contracting, the main slider 2 and the auxiliary slider 3 complete radial contraction actions at the same time but at different speeds, and at this time, the green tire 5 can be conveniently placed in;
referring to fig. 8, the central mechanism of the vulcanizing machine drives the driving mechanism 4 to descend to the first position, the guiding mechanism drives the main sliding block 2 to radially expand outwards, the main sliding block 2 drives the auxiliary sliding block 3 to radially expand outwards, the main sliding block 2 and the auxiliary sliding block 3 complete the radial outward expansion actions at the same time but different speeds, and at the moment, the outer surfaces of the main sliding block 2 and the auxiliary sliding block 3 are abutted with the inner tire surface of the tire blank 5 to form an internal rigid structure for supporting the inflation-free tire;
thirdly, referring to fig. 9, the upper cover 62, the guide ring 63, the slide block 64, the pattern block 65 and the support ring 66 descend to a third position along with the upper hot plate of the vulcanizing machine, the mold is closed, the pattern block 65 contracts and closes, and a cavity for accommodating the green tire 5 is formed by the pattern block 65, the main slide block 2 and the auxiliary slide block 3; at this time, the support rings 66 respectively cooperate with the main slider 2 and the sub slider 3 to provide a supporting force; after the mold is completely closed, the tire surface of the tire blank 5 can be vulcanized;
fourthly, referring to fig. 8, after vulcanization is completed, the upper hot plate of the vulcanizing machine drives the guide ring 63 to ascend to the fourth position, and the mold is opened to realize the tire stripping of the pattern block 65 and the tire;
referring to fig. 7, the central mechanism of the vulcanizing machine drives the driving mechanism 4 to rise to the second position, the guiding mechanism drives the main sliding block 2 to radially contract inward, and the main sliding block 2 drives the auxiliary sliding block 3 to radially contract inward, so that the main sliding block 2 and the auxiliary sliding block 3 are separated from the tire.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A mold for a non-pneumatic tire, comprising:
a lower side plate;
the main sliding blocks and the auxiliary sliding blocks are circumferentially staggered on the lower side plate, and both the main sliding blocks and the auxiliary sliding blocks are movably arranged on the lower side plate along the radial direction; the adjacent main sliding block and the adjacent auxiliary sliding block form a first wedge mechanism, the first wedge mechanism comprises a first wedge surface on the main sliding block, a second wedge surface on the auxiliary sliding block and a first connecting component arranged between the first wedge surface and the second wedge surface, the first wedge surface gradually expands outwards from outside to inside along the radial direction of the main sliding block, and the second wedge surface gradually contracts inwards from outside to inside along the radial direction of the auxiliary sliding block;
and the driving mechanism drives the main sliding block to move, and the main sliding block drives the auxiliary sliding block to move through the first connecting component.
2. A mold for an airless tire as set forth in claim 1, wherein said drive mechanism is movable in an axial direction of said lower side plate between a first position and a second position, said first position being located below said second position; when in the first position, the outer surfaces of the main sliding block and the auxiliary sliding block form a continuous supporting surface for supporting the inner side of the green tire; when the second position is reached, the main sliding block and the auxiliary sliding block both contract inwards, and the outer diameters of the main sliding block and the auxiliary sliding block are both smaller than the inner diameter of the tire blank.
3. The mold for a non-pneumatic tire according to claim 2, further comprising a base, an upper cover, a guide ring, a slider, and a block; the lower side plate is fixed on the base, the upper cover is positioned right above the lower side plate, the guide ring and the sliding block form a second wedge mechanism, and the pattern block is fixed on the sliding block; the upper cover can move between a third position and a fourth position; when the tire is in the third position, the tire is in a mold closing state, the driving mechanism is located at the first position, and the pattern block, the main sliding block and the auxiliary sliding block form a cavity for accommodating a tire blank; and when the fourth position is in the mold opening state.
4. A mold for an inflation-free tire as claimed in claim 3, wherein a support ring is provided below said upper cover; when the upper cover is located at the third position, the support ring is respectively abutted against the main sliding block and the auxiliary sliding block.
5. The mold for the non-pneumatic tire as recited in claim 1, wherein a plurality of first guide grooves are radially disposed on said lower plate, a first guide block capable of sliding along said first guide grooves is disposed in said first guide grooves, and said first guide block is fixedly connected to said main slide block or said auxiliary slide block, respectively;
or, the main sliding block and the auxiliary sliding block are both provided with first guide grooves which are arranged in the radial direction, the first guide blocks which can slide along the first guide grooves are arranged in the first guide grooves, and the first guide blocks are fixedly connected with the lower side plate.
6. The mold for a non-pneumatic tire according to claim 1, wherein the first connecting assembly includes a second guide groove formed on the first tapered wedge surface, a second guide block slidable along the second guide groove is provided in the second guide groove, the second guide block is fixedly connected to the second tapered wedge surface, and a length direction of the second guide groove is perpendicular to an axial direction of the lower side plate;
or, the first connecting assembly includes the second guide groove disposed on the second wedge surface, the second guide groove is internally provided with the second guide block capable of sliding along the second guide groove, the second guide block is fixedly connected with the first wedge surface, and the length direction of the second guide groove is perpendicular to the axial direction of the lower side plate;
the second guide groove is a T-shaped groove, and the second guide block is a T-shaped block.
7. A mold for a non-pneumatic tire as in claim 1 or 6, wherein said main slide block has an inner diameter smaller than that of said sub slide block, and a portion of said main slide block having an inner diameter smaller than that of said sub slide block forms an extension, and a gap exists between said extensions of adjacent main slide blocks.
8. The mold for a non-pneumatic tire as claimed in claim 2, wherein the driving mechanism and all of the main sliding blocks form a third cam mechanism, the third cam mechanism comprises a third cam surface on the driving mechanism and a fourth cam surface on the main sliding blocks, and the third cam surface and the fourth cam surface are gradually expanded outwards in a direction away from the lower side plate;
a third guide groove is formed in the third wedge surface, a third guide block capable of sliding along the third guide groove is arranged in the third guide groove, and the third guide block is fixedly connected with the fourth wedge surface; or the third guide groove is formed in the fourth wedge surface, the third guide block which can slide along the third guide groove is arranged in the third guide groove, and the third guide block is fixedly connected with the third wedge surface;
the third guide groove is a T-shaped groove, and the third guide block is a T-shaped block.
9. A mold for a non-pneumatic tire as in claim 8, wherein said first cam surface has an angle of 15 to 45 ° with respect to a radial direction of said main sliding block; the axial included angle between the third wedge surface and the lower side plate is 15-45 degrees.
10. A mold for a non-pneumatic tire as in claim 1, wherein said main sliding block and said sub sliding block are provided with patterns on the outer surfaces thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039103.3U CN216506215U (en) | 2021-12-06 | 2021-12-06 | Mould for inflation-free tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039103.3U CN216506215U (en) | 2021-12-06 | 2021-12-06 | Mould for inflation-free tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216506215U true CN216506215U (en) | 2022-05-13 |
Family
ID=81467256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123039103.3U Active CN216506215U (en) | 2021-12-06 | 2021-12-06 | Mould for inflation-free tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216506215U (en) |
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2021
- 2021-12-06 CN CN202123039103.3U patent/CN216506215U/en active Active
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