CN116619803B

CN116619803B - Inner mold workbench for tire vulcanization

Info

Publication number: CN116619803B
Application number: CN202310892112.1A
Authority: CN
Inventors: 刘志兰; 李东绪; 井慧哲; 王海强; 刘代平; 赵阳
Original assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Current assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2023-09-29
Anticipated expiration: 2043-07-20
Also published as: CN116619803A

Abstract

The present disclosure relates to the field of tire vulcanization technology, and provides an inner mold table for tire vulcanization, comprising: the device comprises an inner die, a workbench, an upper positioning ring and a lower positioning ring; the top surface of the inner die is provided with a first annular groove which is in clamping fit with the upper positioning ring, and the bottom surface of the inner die is provided with a second annular groove which is in clamping fit with the lower positioning ring; the lower locating ring is detachably connected to the workbench, and the upper locating ring is detachably connected with the lower locating ring. This interior mould workstation for tire vulcanization provides solitary mounting platform for the installation work of child embryo, has reduced the time that occupies the vulcanization platform, has improved the availability factor of vulcanization platform, has also provided safer operational scenario for the installation child embryo simultaneously, has improved the factor of safety of whole vulcanization process, and the setting through last holding ring and the holding of holding ring to interior mould down is fixed, can be more convenient, steady, safely with interior mould transfer to the vulcanization bench from the workstation.

Description

Inner mold workbench for tire vulcanization

Technical Field

The present disclosure relates to tire vulcanization technology, and more particularly, to an inner mold table for tire vulcanization.

Background

When the tire is vulcanized, the rigid inner mold is often placed on a vulcanizing machine, and then the tire blank is installed on the rigid inner mold, so that the process not only occupies the time of the machine to a certain extent and influences the efficiency of the whole vulcanizing operation, but also is inconvenient to operate when a worker installs the tire blank on the vulcanizing machine, and has a certain potential safety hazard.

Disclosure of Invention

In order to solve the technical problems, the present disclosure provides an inner mold table for tire vulcanization.

The present disclosure provides an inner mold table for tire vulcanization, comprising: the device comprises an inner die, a workbench, an upper positioning ring and a lower positioning ring;

the top surface and the bottom surface of the inner die are respectively provided with a first annular structure and a second annular structure, the first annular structure is in clamping fit with the upper positioning ring, and the second annular structure is in clamping fit with the lower positioning ring;

the lower locating ring is detachably connected to the workbench, and the upper locating ring is detachably connected with the lower locating ring;

the workbench is provided with a plurality of positioning sliding grooves which are uniformly distributed along the circumferential direction of the inner die, each positioning sliding groove extends along the radial direction of the inner die, and each positioning sliding groove is internally provided with a positioning sliding block in a sliding manner;

a plurality of notches are formed in the outer side wall of the lower positioning ring along the circumferential direction, the notches correspond to the positioning sliding blocks one by one, and the positioning sliding blocks are matched with the notches in a clamping mode.

Optionally, the mold further comprises a mold bottom plate mounted on the workbench, wherein the mold comprises a plurality of first tiles and a plurality of second tiles;

the first tiles and the second tiles are arranged on the die bottom plate in a staggered mode along the circumferential direction, and each first tile and each second tile are connected with the die bottom plate in a sliding mode along the radial direction of the inner die;

a first top clamping groove is formed in the top of the first tile, a second top clamping groove is formed in the top of the second tile, and a plurality of first top clamping grooves and a plurality of second top clamping grooves are sequentially connected to form a first annular groove in clamping fit with the upper positioning ring; the bottom of first tile has seted up first bottom draw-in groove, the second bottom draw-in groove has been seted up to the bottom of second tile, a plurality of first bottom draw-in groove with a plurality of second bottom draw-in groove connects gradually in order to form with lower holding ring joint complex second ring channel.

Optionally, the mold further comprises a plurality of first supporting blocks and a plurality of second supporting blocks, wherein the number of the first supporting blocks is the same as that of the first tiles, the number of the second supporting blocks is the same as that of the second tiles, and the first supporting blocks and the second supporting blocks are both in sliding connection with the mold bottom plate along the radial direction of the inner mold;

the first tiles are detachably connected with the first support blocks in one-to-one correspondence, and the second tiles are detachably connected with the second support blocks in one-to-one correspondence.

Optionally, the device further comprises a driving mechanism, wherein the driving mechanism comprises a rotary drum, a driving disc, a first guide column, a second guide column, a driving motor, a mounting frame, a first lifting oil cylinder and a lifting frame;

the mounting frame is mounted on the workbench, the cylinder body of the first lifting cylinder is connected with the mounting frame, and the telescopic end of the first lifting cylinder is connected with the lifting frame and used for driving the lifting frame to reciprocate along the axial direction of the inner die;

the rotary drum, the inner die and the driving disc are coaxially arranged, one end of the rotary drum is connected with the driving motor, the driving motor is arranged on the lifting frame, the rotary drum is rotationally connected with the lifting frame, and the rotary drum is connected with the die bottom plate through a first axial limiting mechanism;

the driving disc is sleeved on the rotary drum through a circumferential limiting structure, and is provided with first track grooves matched with the first tiles in number and second track grooves matched with the second tiles in number, and each first track groove and each second track groove are obliquely arranged at a set angle with the radial direction of the inner die;

the number of the first guide posts is the same as that of the first track grooves, and the first guide posts are inserted into the first track grooves to be in sliding fit with the first track grooves; the number of the second guide posts is the same as that of the second track grooves, and the second guide posts are inserted into the second track grooves to be in sliding fit with the second track grooves;

the first guide posts are arranged at the tops of the first support blocks in one-to-one correspondence, and the second guide posts are arranged at the tops of the second support blocks in one-to-one correspondence.

Optionally, the driving mechanism further comprises a central rod and a second lifting oil cylinder, the cylinder body of the second lifting oil cylinder is mounted on the lifting frame, the telescopic end of the second lifting oil cylinder is connected with the central rod and used for driving the central rod to reciprocate along the axial direction of the central rod, the rotary cylinder is coaxially sleeved on the central rod, and the top of the central rod is detachably connected with the upper positioning ring through a second axial limiting mechanism.

Optionally, the arc length of the outer wall of the first tile is greater than the arc length of the outer wall of the second tile, and an included angle formed between the first track groove and the radial direction of the inner mold is greater than an included angle formed between the second track groove and the radial direction of the inner mold.

Optionally, a first connecting block and a second connecting block are respectively arranged on the first supporting block and the second supporting block; a first mounting groove is formed in the bottom of the first tile along the axial direction of the inner die, and a second mounting groove is formed in the bottom of the second tile along the axial direction of the inner die; the first connecting block and the second connecting block are correspondingly connected with the first mounting groove and the second mounting groove in a sliding insertion mode.

Optionally, a connecting flange is arranged on the upper positioning ring, and the connecting flange is detachably connected with the lower positioning ring.

Optionally, the outer wall of interior mould is equipped with bottom snap ring and top snap ring in proper order along the axial, bottom snap ring cover is established the bottom of the outer wall of interior mould to be used for with the bottom surface of child embryo offset, top snap ring cover is established the top of the outer wall of interior mould, and be used for with the top surface of child embryo offset.

Optionally, the outer diameter of the bottom snap ring is larger than the outer diameter of the top snap ring.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the inner mold workbench for tire vulcanization provides an independent mounting platform for the mounting work of the tire blank, reduces the time for occupying the vulcanization table, improves the use efficiency of the vulcanization table, provides a safer working scene for mounting the tire blank, improves the safety factor of the whole vulcanization process, and can more conveniently, stably and safely transfer the inner mold from the workbench to the vulcanization table through the arrangement of the upper positioning ring and the clamping and fixing of the upper positioning ring and the lower positioning ring on the inner mold, and simultaneously can realize positioning connection with the workbench by using the lower positioning ring; through setting up of location spout, location slider and breach, the location and the connection of locating ring and workstation under realization that can be more quick, it is to be noted that, the bottom of breach can be equipped with the step, and the location slider can offset with the top of step after moving the breach to the realization is spacing to the axial of locating ring down, makes the locating ring down fix on the workstation completely.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic view of a tire curing inner mold table according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of an inner mold table for tire curing according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a mold bottom plate of a mold table for tire curing according to an embodiment of the present disclosure, connected to a first support block and a second support block;

FIG. 4 is a schematic diagram of the construction of a first tile and a second tile according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of an upper retaining ring according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of a lower retaining ring according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a tire curing inner mold table according to an embodiment of the present disclosure when a green tire is mounted;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

FIG. 9 is a cross-sectional view taken at P-P in FIG. 7;

FIG. 10 is a schematic view of a tire curing inner mold table according to an embodiment of the present disclosure when a green tire is mounted;

FIG. 11 is a cross-sectional view taken at Q-Q of FIG. 10;

FIG. 12 is a schematic view of a structure in which an upper positioning ring of an inner mold table for tire curing according to an embodiment of the present disclosure is engaged with a first annular groove;

FIG. 13 is a schematic view of a structure in which a lower positioning ring of an inner mold table for tire vulcanization is clamped with a second annular groove according to an embodiment of the present disclosure;

FIG. 14 is a schematic view of a structure in which an upper retainer ring and a lower retainer ring are connected by long bolts in an inner mold table for tire vulcanization according to an embodiment of the present disclosure;

FIG. 15 is a schematic view of a structure for unlocking a lower retaining ring from a table in an inner mold table for tire curing according to an embodiment of the present disclosure;

FIG. 16 is a schematic view of a structure of an embodiment of the present disclosure in which an upper retaining ring, an inner mold, a lower retaining ring, and a green tire are integrally connected and lifted off a table;

FIG. 17 is a schematic view of a mold bottom plate coupled to a drum according to an embodiment of the present disclosure;

FIG. 18 is a top view of FIG. 17;

fig. 19 is a cross-sectional view at B-B in fig. 18.

Wherein, 1, an inner die; 11. a first tile; 111. a first mounting groove; 12. a second tile; 121. a second mounting groove; 13. a bottom clasp; 14. a top snap ring; 2. a work table; 21. positioning a chute; 22. positioning a sliding block; 31. an upper positioning ring; 311. a connecting flange; 32. a lower positioning ring; 321. a notch; 41. a first annular groove; 411. a first top card slot; 412. a second top card slot; 42. a second annular groove; 421. a first bottom clamping groove; 422. a second bottom clamping groove; 5. a mold bottom plate; 61. a first support block; 611. a first connection block; 62. a second support block; 621. a second connection block; 71. a rotating drum; 72. a drive plate; 731. a first guide post; 732. a second guide post; 74. a driving motor; 751. a first track groove; 752. a second track groove; 76. a mounting frame; 771. a first lift cylinder; 772. a second lifting cylinder; 78. a lifting frame; 79. a central rod; 710. rotating the baffle; 8. embryo; 911. an annular clamping groove; 912. a step part; 913. a fan-shaped limiting block; 914. a bearing; 915. a buffer plate; 921. a buckle; 922. the annular groove is buckled; 931. a polygonal sidewall; 932. polygonal through holes; 101. a long bolt; 102. an upper threaded hole; 103. and a lower threaded hole.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

As shown in fig. 1 to 19, an inner mold table for tire vulcanization according to the present embodiment includes: an inner die 1, a workbench 2, an upper positioning ring 31 and a lower positioning ring 32; the top surface and the bottom surface of the inner die 1 are respectively provided with a first annular structure and a second annular structure, the first annular structure is in clamping fit with the upper positioning ring 31, and the second annular structure is in clamping fit with the lower positioning ring 32; the lower locating ring 32 is detachably connected to the workbench 2, the upper locating ring 31 is detachably connected with the lower locating ring 32, the upper locating ring 31 can be connected with the lower locating ring 32 through long bolts 101 which are axially arranged in parallel with the inner die 1, particularly, an upper threaded hole 102 is formed in the upper locating ring 31, a lower threaded hole 103 is formed in a position corresponding to the lower locating ring 32, and the upper threaded hole 102 and the lower threaded hole 103 are connected through the long bolts 101, so that the upper locating ring 31, the inner die 1 and the lower locating ring 32 are connected into a whole, and a plurality of long bolts 101, the upper threaded holes 102 and the lower threaded holes 103 can be uniformly distributed along the circumferential direction; a plurality of positioning sliding grooves 21 are uniformly distributed on the workbench 2 along the circumferential direction, each positioning sliding groove 21 extends along the radial direction of the inner die 1, and a positioning sliding block 22 is slidably arranged in each positioning sliding groove 21; a plurality of notches 321 are circumferentially arranged on the outer side wall of the lower positioning ring 32, the notches 321 correspond to the positioning sliding blocks 22 one by one, and the positioning sliding blocks 22 are in clamping fit with the notches 321.

The inner mold workbench for tire vulcanization provided by the embodiment provides an independent mounting platform for the mounting work of the tire blank 8, reduces the time for occupying the vulcanizing table, improves the use efficiency of the vulcanizing table, provides a safer working scene for mounting the tire blank 8, improves the safety factor of the whole vulcanization process, and can more conveniently, stably and safely transfer the inner mold 1 from the workbench 2 to the vulcanizing table by arranging the upper positioning ring 31 and clamping and fixing the upper positioning ring 31 and the lower positioning ring 32 on the inner mold 1, and simultaneously can realize positioning connection with the workbench 2 by using the lower positioning ring 32; through setting up of location spout 21, location slider 22 and breach 321, the location and the connection of locating ring 32 and workstation 2 under can faster realization, it should be noted that, the bottom of breach 321 can be equipped with the step, and location slider 22 can offset with the top of step after moving to breach 321 to realize the axial spacing to lower locating ring 32, make lower locating ring 32 fix on workstation 2 completely.

With continued reference to fig. 1, 4, 9 and 11, the inner mold table further includes a mold base plate 5 mounted on the table 2, the inner mold 1 including a plurality of first tiles 11 and a plurality of second tiles 12; the first tiles 11 and the second tiles 12 are arranged on the die bottom plate 5 in a staggered manner along the circumferential direction, and each first tile 11 and each second tile 12 are connected with the die bottom plate 5 in a sliding manner along the radial direction of the inner die 1; the top of the first tile 11 is provided with a first top clamping groove 411, the top of the second tile 12 is provided with a second top clamping groove 412, and the plurality of first top clamping grooves 411 and the plurality of second top clamping grooves 412 are sequentially connected to form a first annular groove 41 in clamping fit with the upper positioning ring 31; the bottom of the first tile 11 is provided with a first bottom clamping groove 421, the bottom of the second tile 12 is provided with a second bottom clamping groove 422, and the plurality of first bottom clamping grooves 421 and the plurality of second bottom clamping grooves 422 are sequentially connected to form a second annular groove 42 in clamping fit with the lower positioning ring 32; the inner die 1 is decomposed into a plurality of sliding tiles, and the sliding of the first tile 11 and the second tile 12 in the radial direction can be utilized so as to be more convenient for installing and detaching the tire; meanwhile, the clamping fit of the upper positioning ring 31 and the first annular groove 41 and the clamping fit of the lower positioning ring 32 and the second annular groove 42 can also realize the rounding of the plurality of first tiles 11 and the plurality of second tiles 12, so that the precision of the inner die 1 is ensured; in other embodiments, the tops of the first tiles 11 and the second tiles 12 may be further provided with an arc-shaped protruding structure, and when moving in place, the first tiles and the second tiles may be spliced into a circular ring structure protruding from one side of the upper positioning ring 31, at this time, an annular groove structure that is in concave-convex fit with the circular ring structure may be formed on the upper positioning ring 31, so as to achieve a clamping and fixing circle of the inner mold 1 and the upper positioning ring 31, and similarly, the bottoms of the first tiles 11 and the second tiles 12 may be further provided with an arc-shaped protruding structure, and when moving in place, the first tiles and the second tiles 12 may be spliced into a circular ring structure protruding from one side of the lower positioning ring 32, at this time, an annular groove structure that is in concave-convex fit with the circular ring structure may be formed on the lower positioning ring 32, so as to achieve a clamping and fixing circle of the inner mold 1 and the lower positioning ring 32; the first tile 11 and the second tile 12 can follow the axial movement of the upper positioning ring 31 and the lower positioning ring 32, are separated from the die bottom plate 5, the cost of processing sliding grooves for sliding the first tile 11 and the second tile 12 on the die bottom plate 5 is lower, the later maintenance cost is lower, and the first tile 11 and the second tile 12 can be directly in sliding fit with the workbench 2.

In some embodiments, the first annular groove 41 and the second annular groove 42 are the same size, that is, the inner mold 1 may be placed upside down, the first annular groove 41 may be in snap fit with the lower positioning ring 32, and the second annular groove 42 may be in snap fit with the upper positioning ring 31.

With continued reference to fig. 3, the inner mold table further includes a plurality of first support blocks 61 and a plurality of second support blocks 62, the number of the first support blocks 61 is the same as the number of the first tiles 11, the number of the second support blocks 62 is the same as the number of the second tiles 12, and the first support blocks 61 and the second support blocks 62 are slidably connected with the mold bottom plate 5 along the radial direction of the inner mold 1; the plurality of first tiles 11 are detachably connected with the plurality of first supporting blocks 61 in a one-to-one correspondence manner, and the plurality of second tiles 12 are detachably connected with the plurality of second supporting blocks 62 in a one-to-one correspondence manner; through the arrangement of the first supporting block 61 and the second supporting block 62, only the first tile 11 and the second tile 12 are required to be detachably mounted on the first supporting block 61 and the second supporting block 62, and the first tile 11 and the second tile 12 can be in sliding fit with the mold bottom plate 5 through the first supporting block 61 and the second supporting block 62, so that the overall cost of the inner mold 1 can be reduced, and meanwhile, the first tile 11 and the second tile 12 can be prevented from being worn when sliding with the mold bottom plate 5, and it is understood that the inner mold 1 can be replaced more conveniently through the arrangement, namely, the first tile 11 and the second tile 12 in the inner mold 1 with various sizes can be in sliding fit with the mold bottom plate 5 through the detachable connection with the first supporting block 61 and the second supporting block 62, so that the inner mold workbench is applicable to inner molds with various sizes, and has stronger universality and practicability.

With continued reference to fig. 1-3, the inner mold table further includes a drive mechanism including a drum 71, a drive plate 72, a first guide post 731, a second guide post 732, a drive motor 74, a mounting bracket 76, a first lift cylinder 771, and a lift bracket 78; the mounting bracket 76 is installed on workstation 2, the cylinder body and the mounting bracket 76 of first lift cylinder 771 are connected, the flexible end and the crane 78 of first lift cylinder 771 are connected, be used for driving the axial reciprocating motion of crane 78 along interior mould 1, specifically, also can be the cylinder body and the crane 78 of first lift cylinder 771 are connected, the flexible end and the mounting bracket 76 of first lift cylinder 771 are connected, whole actuating mechanism all realizes being connected with workstation 2 through mounting bracket 76, mounting bracket 76 specifically can be both ends open-ended tubular structure, the cover is established in the outside of rotary drum 71, can increase the contact point of mounting bracket 76 and workstation 2 through annular connector, guarantee stability and reliability of whole actuating mechanism on workstation 2.

With continued reference to fig. 2 and 17 to 19, the drum 71, the inner mold 1 and the driving disc 72 are coaxially disposed, and one end of the drum 71 is connected to the driving motor 74, the driving motor 74 is mounted on the lifting frame 78, the drum 71 is rotatably connected to the lifting frame 78, specifically, the bottom of the drum 71 may be connected to the lifting frame 78 through a structure such as a bearing or a rotating baffle 710, so as to reduce friction therebetween, and the drum 71 is connected to the mold bottom plate 5 through a first axial limiting mechanism, that is, when the first lifting cylinder 771 drives the drum 71 to rise or fall, the drum 71 can drive the mold bottom plate 5 and the first support block 61, the second support block 62 and the inner mold 1 on the mold bottom plate 5 to rise or fall through the first axial limiting mechanism; specifically, the first axial limiting mechanism may include an annular clamping groove 911 formed on the side wall of the drum 71, and a step portion 912 machined on the side wall of the drum 71, where an axial limiting ring is detachably disposed on the annular clamping groove 911, and the mold bottom plate 5 is sleeved between the axial limiting ring and the step portion 912, so as to realize axial limiting of the drum 71 and the mold bottom plate 5; in a further embodiment, the axial limiting ring comprises two 180-degree fan-shaped limiting blocks 913, so that the mold bottom plate 5 can be detached from the drum 71 more conveniently, wherein the two fan-shaped limiting blocks 913 can be connected with the mold bottom plate 5 through bolts, so that the fan-shaped limiting blocks 913 cannot be separated from the annular clamping grooves 911.

With continued reference to fig. 2, a bearing 914 is disposed between the mold bottom plate 5 and the step 912, so that abrasion between the drum 71 and the mold bottom plate 5 can be effectively reduced, and meanwhile, stability of the workbench 2 during operation can be improved, and a buffer plate 915 is disposed between the mold bottom plate 5 and the bearing 914, wherein the bottom of the mold bottom plate 5 abuts against the top of the buffer plate 915, and the two can be separated; the bearing 914 can be protected by the buffer plate 915 to prevent the bearing 914 from being directly impacted by the mold bottom plate 5 when the mold bottom plate 5 is detached from the drum 71 and mounted.

With continued reference to fig. 2, 3, 9, 11 and 17 to 19, the driving disc 72 is sleeved on the drum 71 through a circumferential limit structure, that is, the drum 71 can drive the driving disc 72 to coaxially rotate with the driving disc, the circumferential limit structure may specifically be that a polygonal side wall 931 is provided on the drum 71, a polygonal through hole 932 matching with the shape of the driving disc is provided on the driving disc 72, the polygonal side wall 931 on the drum 71 is spliced with the polygonal through hole 932 to form a circumferential limit structure, the cross section of the polygonal side wall 931 may specifically be square, rectangular, regular hexagon and the like, so long as the torque stability when the drum 71 drives the driving disc 72 to rotate can be ensured, it should be understood that the drum 71 may also be connected with the driving disc 72 through a bolt connection or the like to form the circumferential limit structure.

With continued reference to fig. 3 and 9, the driving disc 72 is provided with first track grooves 751 matched with the number of the first tiles 11 and second track grooves 752 matched with the number of the second tiles 12, and each first track groove 751 and each second track groove 752 are obliquely arranged at a set angle with respect to the radial direction of the inner mold 1; the number of the first guide posts 731 is the same as the number of the first rail grooves 751, and is inserted into the first rail grooves 751 to be slidably engaged with the first rail grooves 751; the number of second guide posts 732 is the same as the number of second track grooves 752 and is inserted into second track grooves 752 in sliding engagement with second track grooves 752; the first guide posts 731 are arranged at the top of the first support blocks 61 in a one-to-one correspondence manner, and the second guide posts 732 are arranged at the top of the second support blocks 62 in a one-to-one correspondence manner; it should be understood that, when the driving disc 72 rotates, the first guide post 731 and the second guide post 732 may be pushed by the first rail groove 751 and the second rail groove 752 to slide along the sidewalls of the first rail groove 751 and the second rail groove 752 in the radial direction, wherein the first rail groove 751 and the second rail groove 752 may have a linear groove-shaped structure or an arc groove-shaped structure, as long as the rotation of the driving disc 72 can be converted into the movement of pushing the first support block 61 and the second support block 62 in the radial direction of the inner mold 1.

In some embodiments, the driving mechanism further comprises a central rod 79 and a second lifting cylinder 772, the cylinder body of the second lifting cylinder 772 is mounted on the lifting frame 78, the telescopic end of the second lifting cylinder 772 is connected with the central rod 79 and used for driving the central rod 79 to reciprocate along the axial direction thereof, the rotary drum 71 is coaxially sleeved on the central rod 79, and the top of the central rod 79 is detachably connected with the upper positioning ring 31 through a second axial limiting mechanism; the second axial limiting mechanism may be disposed at the top end of the central rod 79, and the second lifting cylinder 772 may drive the central rod 79 to ascend or descend and simultaneously drive the upper positioning ring 31 to ascend or descend through the second axial limiting mechanism; the second axial limiting mechanism may include a buckle 921 detachably mounted on the top end of the central rod 79, and a buckle annular groove 922 formed on the upper positioning ring 31, where a part of the structure of the buckle 921 is clamped in the buckle annular groove 922 to form axial limiting of the central rod 79 and the upper positioning ring 31; it should be noted that the second axial limiting mechanism is detachably connected between the central rod 79 and the upper positioning ring 31, that is, the upper positioning ring 31 may be disengaged from the central rod 79 after the second axial limiting mechanism is released.

In some embodiments, the arc length of the outer wall of the first tile 11 is greater than the arc length of the outer wall of the second tile 12, and the angle formed between the first rail groove 751 and the radial direction of the inner mold 1 is greater than the angle formed between the second rail groove 752 and the radial direction of the inner mold 1; that is to say, the contact area between the first tile 11 and the embryo 8 is larger, the first tile 11 is a structure for mainly supporting the embryo 8, and the second tile 12 can be an auxiliary supporting structure for filling the gap between two adjacent first tiles 11; the inclination angle of the first track groove 751 is larger than that of the second track groove 752, so that when the driving disc 72 rotates for a certain angle, the displacement of the second tile 12 moving along the radial direction of the inner die 1 is larger than that of the first tile 11 moving along the radial direction of the inner die 1, and therefore the first tile 11 and the second tile 12 are retracted step by step, interference to movement of the first tile 11 and the second tile 12 is avoided, the second tile 12 can be retracted more rapidly than the first tile 11, the contact time of the first tile 11 and the embryo 8 is longer, and the supporting effect of the whole inner die 1 is improved.

In a further embodiment, the first tile 11 and the second tile 12 are positioned by guiding inclined planes, that is, when the first tile 11 and the second tile 12 are round, a supporting surface is arranged between the two tiles, so that stability between the two tiles is ensured.

In some embodiments, the first support block 61 and the second support block 62 are provided with a first connection block 611 and a second connection block 621, respectively; the bottom of the first tile 11 is provided with a first mounting groove 111 along the axial direction of the inner die 1, and the bottom of the second tile 12 is provided with a second mounting groove 121 along the axial direction of the inner die 1; the first connection block 611 and the second connection block 621 are correspondingly slidably inserted into the first installation groove 111 and the second installation groove 121, that is, the first tile 11 and the second tile 12 can be connected with the first connection block 611 and the second connection block 621 in a vertically downward movement manner, so that after the installation of the tire blank 8 is completed, the upper positioning ring 31, the inner mold 1 and the lower positioning ring 32 can be connected into a whole, and the first tile 11 and the second tile 12 can be separated from the first connection block 611 and the second connection block 621 through integral lifting, so that the disassembly steps are simplified, and the working efficiency is improved.

With continued reference to fig. 5, the upper positioning ring 31 is provided with a connecting flange 311, and the connecting flange 311 is detachably connected with the lower positioning ring 32; specifically, the annular groove 922 can be formed on the connecting flange 311, the upper positioning ring 31 and the hoisting device can be connected through the connecting flange 311, and after the upper positioning ring 31, the inner mold 1 and the lower positioning ring 32 are connected into a whole, the whole is hoisted to the vulcanizing table through the connecting flange 311 to carry out vulcanizing operation.

With continued reference to fig. 1, 2, 6, 9 and 11, a plurality of positioning sliding grooves 21 are uniformly distributed on the workbench 2 along the circumferential direction, each positioning sliding groove 21 extends along the radial direction of the inner mold 1, and a positioning sliding block 22 is slidably arranged in each positioning sliding groove 21; the outer side wall of the lower positioning ring 32 is provided with a plurality of notches 321 along the circumferential direction, the notches 321 are in one-to-one correspondence with the positioning slide blocks 22, the positioning slide blocks 22 are in clamping fit with the notches 321, and the positioning and connection of the lower positioning ring 32 and the workbench 2 can be realized more quickly through the arrangement of the positioning slide grooves 21, the positioning slide blocks 22 and the notches 321, and it is noted that the bottom of the notch 321 can be provided with a step, and the positioning slide blocks 22 can abut against the top of the step after moving to the notch 321, so that the axial limiting of the lower positioning ring 32 is realized; the lower retaining ring 32 is fully secured to the table 2.

In some embodiments, the outer wall of the inner mold 1 is sequentially provided with a bottom clamping ring 13 and a top clamping ring 14 along the axial direction, the bottom clamping ring 13 is sleeved at the bottom of the outer wall of the inner mold 1 and is used for propping against the bottom surface of the embryo 8, and the top clamping ring 14 is sleeved at the top of the outer wall of the inner mold 1 and is used for propping against the top surface of the embryo 8; it should be understood that the bottom snap ring 13 and the top snap ring 14 may be integrally formed with the inner mold 1, the bottom snap ring 13 and the top snap ring 14 and the outer side wall of the inner mold 1 form a mounting groove matching the shape of the embryo 8, and the axial limit of the embryo 8 is achieved by the bottom snap ring 13 and the top snap ring 14.

With continued reference to FIG. 8, the outer diameter of the bottom snap ring 13 is greater than the outer diameter of the top snap ring 14; that is, when the driving disc 72 rotates by a set angle, the embryo 8 just can pass over the top clamping ring 14 and then fall on the top surface of the bottom clamping ring 13, and at this time, only the driving disc 72 needs to be rotated to expand the first tile 11 and the second tile 12 outwards, so that the embryo 8 is fastened.

As shown in fig. 7 to 16, in the tire vulcanizing inner mold table, when it is used specifically, all positioning sliders 22 are slid to the outer ring position, a lower positioning ring 32 is placed at the center position of a table 2, then each notch 321 is opposed to a positioning slide groove 21, then the positioning sliders 22 are slid into the notches 321, the lower positioning ring 32 is fixed to the table 2, then a first support block 61 and a second support block 62 are fitted in the slide grooves on a mold base plate 5 alternately in the circumferential direction, then the mold base plate 5 is fitted over a drum 71, then two annular stoppers 913 are inserted in annular engaging grooves 911 opposed to each other, and two annular stoppers 913 are fixed to the mold base plate 5 by bolts, then a first tile 11 and a second tile 12 are correspondingly fitted on a first connecting block 611 and a second connecting block 621, it should be noted that, at this time, the drum 71 is lifted up to a certain height by the first lift cylinder 771, that is, after the first tile 11 and the second tile 12 are mounted in place, the first bottom clamping groove 421 and the second bottom clamping groove 422 at the bottom are both higher than the height of the lower positioning ring 32, so that when the first tile 11 and the second tile 12 slide, no interference is formed with the lower positioning ring 32, at this time, the driving disc 72 is sleeved on the drum 71, and it is ensured that the first guide post 731 and the second guide post 732 are inserted into the first track groove 751 and the second track groove 752, respectively, and then the upper positioning ring 31 is mounted at the top end of the center rod 79 by the connecting flange 311, that is, at this time, the center rod 79 is lifted up to a certain height by the second lift cylinder 772, the first shoe 11 and the second shoe 12 do not interfere with the upper retainer ring 31 when slid.

Then, the driving motor 74 is started, the drum 71 drives the driving disc 72 to rotate for a set angle until the embryo 8 can pass through the top clamping rings 14 of all the first tiles 11 and can also fall on the top surfaces of the bottom clamping rings 13 of all the first tiles 11, at the moment, the embryo 8 is placed on the bottom clamping rings 13 of the first tiles 11 from above, and then the driving disc 72 is driven to rotate, so that all the first tiles 11 and the second tiles 12 continue to move outwards until the outer side wall of the first tile 11 and the outer side wall of the second tile 12 are in the same circle and are attached to the inner side wall of the embryo 8, and therefore the installation of the embryo 8 is achieved.

At this time, the second lift cylinder 772 is driven to drive the upper positioning ring 31 to drop, so that the upper positioning ring 31 falls into the first annular groove 41, then the second lift cylinder 772 and the first lift cylinder 771 are driven to drop together with the upper positioning ring 31 and the mold bottom plate 5 until the lower positioning ring 32 is clamped with the second annular groove 42, then the upper positioning ring 31 is rotated, the upper threaded holes 102 on the upper positioning ring 31 are aligned with the lower threaded holes 103 on the lower positioning ring 32 one by one, and then the long bolts 101 are installed, so that the upper positioning ring 31, the inner mold 1 and the lower positioning ring 32 are connected into a whole, and locking is realized.

And then all the positioning sliding blocks 22 slide outwards to unlock the workbench 2 and the lower positioning ring 32, the connecting flange 311 is connected with a hoisting device, and the upper positioning ring 31, the inner mold 1, the lower positioning ring 32 and the embryo 8 are hoisted to a vulcanizing table together for vulcanization.

The specific implementation manner and implementation principle are the same as those of the above embodiments, and the same or similar technical effects can be brought about, and will not be described in detail herein, and specific reference may be made to the description of the above embodiment of the tire vulcanization inner mold workbench.

In the description of the embodiments of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the embodiments of the present disclosure and to simplify the description, and do not indicate or imply that the structures or devices referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present disclosure.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An inner mold table for tire vulcanization, comprising:

an inner die (1), a workbench (2), an upper positioning ring (31) and a lower positioning ring (32);

the top surface and the bottom surface of the inner die (1) are respectively provided with a first annular structure and a second annular structure, the first annular structure is in clamping fit with the upper positioning ring (31), and the second annular structure is in clamping fit with the lower positioning ring (32);

the lower positioning ring (32) is detachably connected to the workbench (2), and the upper positioning ring (31) is detachably connected with the lower positioning ring (32);

a plurality of positioning sliding grooves (21) which are uniformly distributed along the circumferential direction of the inner die (1) are formed in the workbench (2), each positioning sliding groove (21) extends along the radial direction of the inner die (1), and a positioning sliding block (22) is slidably arranged in each positioning sliding groove (21);

a plurality of notches (321) are formed in the outer side wall of the lower positioning ring (32) along the circumferential direction, the notches (321) are in one-to-one correspondence with the positioning sliding blocks (22), and the positioning sliding blocks (22) are in clamping fit with the notches (321);

the mold comprises a workbench (2), and is characterized by further comprising a mold bottom plate (5) arranged on the workbench (2), wherein the inner mold (1) comprises a plurality of first tiles (11) and a plurality of second tiles (12);

the first tiles (11) and the second tiles (12) are arranged on the die bottom plate (5) in a staggered mode along the circumferential direction, and each first tile (11) and each second tile (12) are connected with the die bottom plate (5) in a sliding mode along the radial direction of the inner die (1);

a first top clamping groove (411) is formed in the top of the first tile (11), a second top clamping groove (412) is formed in the top of the second tile (12), and a plurality of first top clamping grooves (411) and a plurality of second top clamping grooves (412) are sequentially connected to form a first annular groove (41) in clamping fit with the upper positioning ring (31); first bottom draw-in groove (421) have been seted up to the bottom of first tile (11), second bottom draw-in groove (422) have been seted up to the bottom of second tile (12), a plurality of first bottom draw-in groove (421) and a plurality of second bottom draw-in groove (422) connect gradually in order to form with lower holding ring (32) joint complex second ring channel (42).

2. Tyre-vulcanizing inner mold table according to claim 1, further comprising a plurality of first support blocks (61) and a plurality of second support blocks (62), the number of the first support blocks (61) being the same as the number of the first tiles (11), the number of the second support blocks (62) being the same as the number of the second tiles (12), the first support blocks (61) and the second support blocks (62) being both slidingly connected with the mold base plate (5) in the radial direction of the inner mold (1);

the first tiles (11) are detachably connected with the first support blocks (61) in one-to-one correspondence, and the second tiles (12) are detachably connected with the second support blocks (62) in one-to-one correspondence.

3. The tire curing inner mold table according to claim 2, further comprising a drive mechanism including a drum (71), a drive plate (72), a first guide post (731), a second guide post (732), a drive motor (74), a mounting bracket (76), a first lift cylinder (771), and a lift frame (78);

the mounting frame (76) is mounted on the workbench (2), a cylinder body of the first lifting oil cylinder (771) is connected with the mounting frame (76), a telescopic end of the first lifting oil cylinder (771) is connected with the lifting frame (78), and the lifting frame (78) is driven to reciprocate along the axial direction of the inner die (1);

the rotary drum (71), the inner die (1) and the driving disc (72) are coaxially arranged, one end of the rotary drum (71) is connected with the driving motor (74), the driving motor (74) is arranged on the lifting frame (78), the rotary drum (71) is rotationally connected with the lifting frame (78), and the rotary drum (71) is connected with the die bottom plate (5) through a first axial limiting mechanism;

the driving disc (72) is sleeved on the rotating drum (71) through a circumferential limiting structure, a first track groove (751) matched with the number of the first tiles (11) and a second track groove (752) matched with the number of the second tiles (12) are formed in the driving disc (72), and each first track groove (751) and each second track groove (752) are obliquely arranged at a set angle with the radial direction of the inner die (1);

the number of the first guide posts (731) is the same as the number of the first rail grooves (751), and the first guide posts are inserted into the first rail grooves (751) to be in sliding fit with the first rail grooves (751); the number of the second guide posts (732) is the same as the number of the second track grooves (752), and the second guide posts are inserted into the second track grooves (752) to be in sliding fit with the second track grooves (752);

the first guide posts (731) are arranged at the tops of the first support blocks (61) in a one-to-one correspondence manner, and the second guide posts (732) are arranged at the tops of the second support blocks (62) in a one-to-one correspondence manner.

4. An inner mold table for tire vulcanization as in claim 3, wherein the drive mechanism further comprises a center rod (79) and a second lift cylinder (772), the cylinder body of the second lift cylinder (772) is mounted on the lift frame (78), the telescopic end of the second lift cylinder (772) is connected with the center rod (79) and used for driving the center rod (79) to reciprocate along the axial direction thereof, the drum (71) is coaxially and rotatably sleeved on the center rod (79), and the top of the center rod (79) is detachably connected with the upper positioning ring (31) through a second axial limiting mechanism.

5. A tire curing inner mold table according to claim 3, wherein the arc length of the outer wall of the first shoe (11) is greater than the arc length of the outer wall of the second shoe (12), and the angle formed between the first rail groove (751) and the radial direction of the inner mold (1) is greater than the angle formed between the second rail groove (752) and the radial direction of the inner mold (1).

6. An inner mold table for tire vulcanization according to claim 2, wherein the first support block (61) and the second support block (62) are provided with a first connection block (611) and a second connection block (621), respectively; a first mounting groove (111) is formed in the bottom of the first tile (11) along the axial direction of the inner die (1), and a second mounting groove (121) is formed in the bottom of the second tile (12) along the axial direction of the inner die (1); the first connecting block (611) and the second connecting block (621) are correspondingly connected with the first mounting groove (111) and the second mounting groove (121) in a sliding manner.

7. Tyre vulcanisation inner mould table according to any of the claims 1 to 6, wherein said upper positioning ring (31) is provided with a connection flange (311), said connection flange (311) being removably connected to said lower positioning ring (32).

8. Tyre vulcanisation inner mould table according to any of the claims 1 to 6, wherein the outer wall of the inner mould (1) is provided with a bottom snap ring (13) and a top snap ring (14) in axial sequence, the bottom snap ring (13) being arranged at the bottom of the outer wall of the inner mould (1) and being arranged against the bottom surface of the tyre blank (8), the top snap ring (14) being arranged at the top of the outer wall of the inner mould (1) and being arranged against the top surface of the tyre blank (8).

9. An inner mold table for tire vulcanization according to claim 8, characterized in that the outer diameter of the bottom snap ring (13) is larger than the outer diameter of the top snap ring (14).