CN220661476U

CN220661476U - Pattern block and tire mold

Info

Publication number: CN220661476U
Application number: CN202322325048.7U
Authority: CN
Inventors: 李伟; 王辉; 孟杰; 张瑞鑫
Original assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Current assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Priority date: 2023-08-29
Filing date: 2023-08-29
Publication date: 2024-03-26
Anticipated expiration: 2033-08-29

Abstract

The utility model discloses a pattern block and a tire mold, which belong to the technical field of tire vulcanization equipment and comprise: the pattern block body is provided with a plurality of matching holes at the caliber of the pattern block body; the buffer assembly comprises a sleeve body which is arranged in the matching hole; the sleeve body is provided with a first end face and a second end face, and the first end face is positioned at the caliber surface of the pattern block body; the sleeve body is internally provided with a through hole for communicating the first end face with the second end face; the buffer block and the elastic piece are arranged in the through hole, part of the buffer block protrudes from the caliber surface, and the elastic piece enables the buffer block to have a tendency of protruding from the caliber surface; the utility model utilizes the plurality of buffer components arranged at the caliber of the pattern block body, can effectively offset the mutual extrusion force of the pattern block body and the side plate in the mold closing process, avoids the damage of caliber and flower arrangement, can not generate the problems of vertical seams, circular seams, pattern damage and the like caused by caliber or flower arrangement damage, and prolongs the service life of the tire mold.

Description

Pattern block and tire mold

Technical Field

The utility model relates to the technical field of tire vulcanizing equipment, in particular to a pattern block and a tire mold.

Background

In the existing aluminum alloy tire mold, the caliber (matching surface of the pattern block and the side plate) of the pattern block and the side plate are often damaged due to mutual extrusion of the pattern block and the side plate, wherein the caliber damage can cause poor adhesion of the pattern block and the side plate, positioning deviation and easy occurrence of vertical seam or circumferential seam glue running; the side pattern damage can cause defects in the sidewall pattern of the vulcanized tire; the damage to the caliber and the flowers can affect the service life of the tire mold and the appearance and performance of the vulcanized tire.

In order to avoid the problems that aluminum sticking to the caliber of a pattern block and damage to flowers are caused by the influence of heat and mold clamping force during tire vulcanization, the common solving and improving mode at the present stage is to use surface hardening treatment or high-performance aluminum materials, the input cost of a tire mold can be greatly increased by the mode, and the problems that aluminum sticking to the caliber and damage to flowers are caused still occur after long-time use, so that the defect of the pattern of the tire affects the attractiveness of the tire, the service performance is adversely affected, the problems cannot be fundamentally solved, and the problems that the subsequent treatment difficulty is high, the cost is high, the risk of mold scrapping is high and the like are also solved.

Therefore, designing a pattern block and a tire mold which can prevent the mutual extrusion between the pattern block and the side plate, avoid the damage of the pattern block caliber and the side patterns and improve the service life is a problem to be solved in the prior art.

Disclosure of Invention

The block and the tire mold provided by the utility model can effectively offset the mutual extrusion force of the block body and the side plate in the mold closing process by utilizing the buffer components arranged at the caliber of the block body, avoid the damage of caliber and side flowers, avoid the problems of vertical seams, circular seams, pattern damage and the like caused by caliber or side flower damage, and prolong the service life of the tire mold.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

in one aspect, the present utility model provides a block comprising:

the pattern block comprises a pattern block body, wherein a plurality of matching holes are formed in the caliber of the pattern block body;

the buffer assembly comprises a sleeve body, and the sleeve body is arranged in the matching hole; the sleeve body is provided with a first end face and a second end face, and the first end face is positioned at the caliber surface of the pattern block body; the sleeve body is internally provided with a through hole for communicating the first end face with the second end face; the through hole is internally provided with a buffer block and an elastic piece, part of the buffer block protrudes out of the caliber surface of the pattern block body, and the elastic piece enables the buffer block to have a tendency of protruding out of the caliber surface of the pattern block body.

As a preferable technical scheme, a first limiting surface is arranged at the position, close to the first end surface, of the through hole, and a second limiting surface matched with the first limiting surface is arranged on the buffer block.

As a preferable technical scheme, the buffer block is set as a buffer ball; the first limiting surface is a spherical surface matched with the buffer ball, the diameter of the first limiting surface gradually increases along the direction from the first end surface to the second end surface, and the maximum diameter of the first limiting surface is smaller than the diameter of the buffer ball; the surface of the buffer ball, which is abutted against the first limiting surface, forms the second limiting surface.

As a preferred technical solution, the minimum diameter of the first limiting surface is not greater than 2/3 of the diameter of the buffer ball.

As a preferable technical scheme, the buffer assembly further comprises a connecting screw, wherein one end of the connecting screw is provided with a first external thread, and the other end of the connecting screw is provided with a second external thread; the bottom of the matching hole is provided with a first internal thread, and the first internal thread is matched with the first external thread; and a second internal thread is arranged at the position of the through hole, which is close to the second end surface, and the second internal thread is matched with the second external thread.

As a preferable technical scheme, a supporting gasket is arranged in the through hole at a position between the buffer ball and the elastic piece; one end of the elastic piece is abutted with the connecting screw, and the other end of the elastic piece is abutted with the supporting gasket.

As a preferable technical scheme, the support gasket is in clearance fit with the through hole;

and/or the side surface of the supporting gasket facing the buffer ball is provided with a spherical groove, and the buffer ball is embedded into the spherical groove;

and/or the elastic piece is provided as a spring or a shrapnel.

As a preferable technical scheme, the matching hole is a round hole, the sleeve body is cylindrical, and the sleeve body is in clearance fit with the matching hole.

As a preferable technical scheme, a plurality of the matching holes are uniformly distributed along the circumferential direction;

and/or, the axis of the mating hole passes through the center of curvature of the block body.

In a second aspect, the present utility model provides a tire mold comprising one of the blocks described above.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the plurality of buffer assemblies arranged at the caliber of the pattern block body are utilized, part of buffer blocks protrude from the caliber surface of the pattern block body, can be contacted with the side plates in advance, play a role in buffering under the cooperation of the elastic pieces, can effectively offset the mutual extrusion force of the pattern block body and the side plates in the mold closing process, avoid the damage of caliber and flowers, avoid the problems of vertical seams, circular seams, pattern damage and the like caused by caliber or flower damage, and have the advantages of simple structure, convenient use and greatly prolonged service life of the tire mold.

2. The buffer component can also provide uniform die assembly resistance, so that the die assembly speeds of the pattern block bodies are relatively consistent, the matching precision of the tire die is ensured, the vulcanized tire spline, steel sheet and tread are free from dislocation, and the appearance quality and performance of the tire are improved.

3. The buffer component can be produced in a standardized way, can realize the exchange and the universality of the buffer component, saves production materials, reduces the resource waste and reduces the storage and purchasing cost of tire manufacturers.

Drawings

FIG. 1 is a schematic view of the overall structure of an embodiment of a block of the present utility model;

FIG. 2 is a schematic view of the block body and cushion assembly of FIG. 1;

fig. 3 is an enlarged view of area a in fig. 2;

FIG. 4 is an assembled schematic view of the cushioning assembly of FIG. 1;

FIG. 5 is an assembled cross-sectional view of the cushioning assembly of FIG. 1;

fig. 6 is a schematic structural view of the sleeve of fig. 4.

In the figure: 1-block body, 11-caliber, 12-mating hole, 2-buffer assembly, 3-sleeve body, 31-first end face, 32-second end face, 33-through hole, 34-first limit face, 35-second internal thread, 4-buffer ball, 5-elastic piece, 6-connecting screw, 61-first external thread, 62-second external thread, 7-support gasket, 71-spherical groove.

Detailed Description

The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.

1-6, an embodiment of a block according to the present utility model includes a block body 1, wherein a plurality of mating holes 12 are provided at a caliber 11 of the block body 1; each of the matching holes 12 is internally provided with a buffer component 2, the buffer component 2 comprises a sleeve body 3 embedded in the matching hole 12, the sleeve body 3 is provided with a first end surface 31 and a second end surface 32, and the first end surface 31 faces outwards and does not protrude out of the caliber 11 surface of the pattern block body 1; the sleeve body 3 is internally provided with a through hole 33 for communicating the first end face 31 with the second end face 32; the buffer block and the elastic piece 5 are both positioned in the through hole 33, part of the buffer block protrudes out of the surface of the caliber 11 under the action of the elastic piece 5, the protruding part of the buffer block can be contacted with the side plate in advance in the die assembly process, the buffer effect is achieved under the cooperation of the elastic piece 5, the situation that the pattern block body 1 and the side plate are mutually extruded can be prevented, the caliber 11 and the side flower of the pattern block body 1 are prevented from being damaged, the problems of vertical joint, circular joint, pattern damage and the like caused by the caliber 11 or the side flower damage can be avoided, and the service life of the tire die is prolonged.

Referring to fig. 3, as the surface of the caliber 11 of the block body 1 is an arc surface, and the first end face 31 of the sleeve body 3 is a plane, when assembling, the first end face 31 of the sleeve body 3 slightly sinks into the matching hole 12, so that the first end face 31 of the sleeve body 3 does not protrude out of the surface of the caliber 11, the first end face 31 of the sleeve body is simpler to process and is convenient to assemble; in other embodiments, the first end 31 of the sleeve 3 may be machined to match the curvature of the surface of the bore 11, such that the first end 31 of the sleeve 3 is flush with the surface of the bore 11 during assembly.

In this embodiment, referring to fig. 6, the sleeve body 3 is cylindrical, and the corresponding mating hole 12 is provided as a circular hole, and the sleeve body 3 is in clearance fit with the mating hole 12, so that the sleeve body 3 is conveniently installed in the circular hole; two or three cushion elements 2 are preferably provided on each bore 11 of the block body 1.

In this embodiment, referring to fig. 4 and 5, the buffer block is set as the buffer ball 4, and when the buffer ball 4 contacts with the side plate, the buffer effect can be further improved by rolling; the position of the through hole 33 close to the first end surface 31 is provided with a first limiting surface 34 for preventing the buffer ball 4 from separating from the through hole 33, the first limiting surface 34 is a spherical surface matched with the buffer ball 4, the diameter of the spherical surface is the same as that of the buffer ball 4, the surface of the buffer ball 4, which is abutted against the first limiting surface 34, forms a second limiting surface, and when the first limiting surface 34 is abutted against the second limiting surface, the buffer ball 4 can be prevented from continuously protruding towards the first end surface 31; meanwhile, the diameter of the first limiting surface 34 gradually increases along the direction from the first end surface 31 to the second end surface 32, and the maximum diameter of the first limiting surface 34 is smaller than the diameter of the buffer ball 4, so that the buffer ball 4 can be effectively limited and can smoothly roll; specifically, the minimum diameter of the first limiting surface 34 is not greater than 2/3 of the diameter of the buffer ball 4, so that the protruding height of the buffer ball 4 can be effectively limited, and the protruding part of the buffer ball 4 is prevented from being too large; in other embodiments, the buffer block may have other shapes, such as a cone shape, and balls may be disposed on the protruding end of the buffer block, so that the buffer between the block body 1 and the side plate can be effectively achieved.

In this embodiment, referring to fig. 4 to 6, the buffer assembly 2 further includes a connection screw 6, one end of the connection screw 6 has a first external thread 61, and the other end of the connection screw 6 has a second external thread 62; the bottom of the matching hole 12 is provided with a first internal thread which is matched with the first external thread 61, so that one end of the connecting screw 6 can be fixed in the matching hole 12; the position of the through hole 33 close to the second end surface 32 is provided with a second internal thread 35, and the second internal thread 35 is matched with a second external thread 62, so that the sleeve body 3 can be fixed on the connecting screw 6; the end surface of the connecting screw 6 having the second external thread 62 should be provided with a mounting groove, through which the connecting screw 6 can be conveniently fastened to or detached from the mating hole 12.

On the basis of the foregoing embodiment, referring to fig. 4 and 5, a supporting pad 7 is disposed in the through hole 33 at a position between the buffer ball 4 and the elastic member 5, one end of the elastic member 5 is abutted against the connecting screw 6, the other end of the elastic member 5 is abutted against the supporting pad 7, and the supporting pad 7 can stably transmit the elastic force of the elastic member 5 to the buffer ball 4 on one hand, and can ensure smooth rolling of the buffer ball 4 on the other hand; specifically, the supporting gasket 7 is in clearance fit with the through hole 33, so that when the buffer ball 4 is subjected to extrusion force, the elastic piece 5 is contracted, and the supporting gasket 7 and the buffer ball 4 can smoothly move along the through hole 33; the side surface of the supporting gasket 7 facing the buffer ball 4 is provided with a spherical groove 71, the buffer ball 4 is embedded into the spherical groove 71, the diameter of the spherical groove 71 is the same as that of the buffer ball 4, and the spherical groove 71 can ensure smooth rolling of the buffer ball 4 in the spherical groove 71 while positioning the buffer ball 4; further, the inner diameter of the through hole 33 at the second internal thread 35 should be slightly larger than the inner diameter of the through hole 33 so that the second internal thread 35 does not interfere with the insertion of the support pad 7 into the through hole 33.

In this embodiment, referring to fig. 4 and 5, the elastic member 5 is a spring, and the spring is in a compressed state, so that the spring can stably apply an elastic force to the support pad 7 and the buffer ball 4; in other embodiments, the elastic member 5 may be a spring plate, so as to stably apply the elastic force to the buffer ball 4.

In this embodiment, referring to fig. 1 and 2, a plurality of mating holes 12 are uniformly distributed along a circumferential direction, so as to ensure that the cushioning components 2 in the mating holes 12 can be simultaneously contacted with the side plates to achieve an optimal cushioning effect, wherein the circumferential direction is based on a curvature center of the block body 1; similarly, the axis of the matching hole 12 passes through the curvature center of the block body 1, so that the direction of the extrusion force applied by the buffer ball 4 is consistent with the direction of the elastic force applied by the elastic piece 5 to the buffer ball 4, and the optimal buffer effect can be achieved.

The installation mode of the utility model is as follows:

fixedly connecting the connecting screw 6 with the matching hole 12 through the matched first external thread 61 and the first internal thread; the buffer ball 4, the support gasket 7 and the elastic piece 5 are placed in the through hole 33 from the second end face 32 of the sleeve body 3 in sequence; fixedly connecting the sleeve body 3 with the connecting screw 6 through the matched second internal screw thread 35 and the second external screw thread 62, and slightly sinking the first end face 31 of the sleeve body 3 into the caliber 11 surface of the pattern block body 1; specifically, the first end surface 31 may be provided with a plurality of tightening grooves, and preferably, the tightening grooves may be four and circumferentially uniform ring cloth; the tightening tool is inserted into the tightening groove to conveniently rotate the sleeve body 3, the sleeve body 3 is tightened on the connecting screw 6, and the sleeve body 3 is more convenient to install, fasten and disassemble.

When the tire mold is vulcanized, under the action of the mold clamping force, the matching between the molds is folded along with the buffer action, and finally, the position accuracy of the matched surfaces after the mold clamping is ensured not to deviate. The concrete die assembly process is as follows: 1. starting to mold the tire mold after the tire mold is subjected to the preloading force; 2. the buffer component 2 on the caliber 11 of the pattern block body 1 is contacted with the side plate; 3. the caliber 11 and the flower side of the pattern block body 1 can be prevented from being extruded by the buffer balls 4 and the elastic pieces 5 in the buffer assembly 2; 4. and (5) completing die assembly.

The buffer component 2 has the advantages of low manufacturing cost, wide applicable range, simple and convenient installation, easy operation and high hardness, can play a good role in buffering when the tire is vulcanized to open and close the mold, avoids the condition that the matching precision of the tire mold is affected due to extrusion damage of different degrees on the matching surface, prolongs the service life of the tire mold, and further reduces the use cost of the tire mold.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A block, comprising:

the pattern block comprises a pattern block body (1), wherein a plurality of matching holes (12) are formed in the caliber (11) of the pattern block body (1);

the buffer assembly (2), the buffer assembly (2) comprises a sleeve body (3), and the sleeve body (3) is arranged in the matching hole (12); the sleeve body (3) is provided with a first end face (31) and a second end face (32), and the first end face (31) is positioned at the surface of the caliber (11) of the pattern block body (1); a through hole (33) for communicating the first end face (31) with the second end face (32) is formed in the sleeve body (3); the through hole (33) is internally provided with a buffer block and an elastic piece (5), part of the buffer block protrudes out of the surface of the caliber (11) of the pattern block body (1), and the elastic piece (5) enables the buffer block to have a trend of protruding out of the surface of the caliber (11) of the pattern block body (1).

2. A block as claimed in claim 1, wherein said through hole (33) is provided with a first stop surface (34) adjacent to said first end surface (31), said buffer block having a second stop surface matching said first stop surface (34).

3. -a block according to claim 2, characterized in that said buffer block is provided as a buffer ball (4); the first limiting surface (34) is a spherical surface matched with the buffer ball (4), the diameter of the first limiting surface (34) gradually increases along the direction from the first end surface (31) to the second end surface (32), and the maximum diameter of the first limiting surface (34) is smaller than the diameter of the buffer ball (4); the surface of the buffer ball (4) abutting against the first limiting surface (34) forms the second limiting surface.

4. A block as claimed in claim 3, wherein the minimum diameter of the first stop surface (34) is not greater than 2/3 of the diameter of the buffer ball (4).

5. A block as claimed in claim 3, wherein said buffer assembly (2) further comprises a connecting screw (6), one end of said connecting screw (6) having a first external thread (61) and the other end of said connecting screw (6) having a second external thread (62); the bottom of the matching hole (12) is provided with a first internal thread which is matched with the first external thread (61); and a second internal thread (35) is arranged at the position, close to the second end surface (32), of the through hole (33), and the second internal thread (35) is matched with the second external thread (62).

6. -a block according to claim 5, characterized in that a support pad (7) is provided in the through hole (33) at a position between the buffer ball (4) and the elastic element (5); one end of the elastic piece (5) is abutted with the connecting screw (6), and the other end of the elastic piece (5) is abutted with the supporting gasket (7).

7. -a block according to claim 6, characterized in that said support pad (7) is in clearance fit with said through hole (33);

and/or the side surface of the supporting gasket (7) facing the buffer ball (4) is provided with a spherical groove (71), and the buffer ball (4) is embedded into the spherical groove (71);

and/or the elastic piece (5) is provided as a spring or a shrapnel.

8. A block as claimed in claim 1, wherein said fitting hole (12) is provided as a circular hole, said sleeve body (3) is cylindrical, and said sleeve body (3) is clearance-fitted with said fitting hole (12).

9. -a block according to claim 1, characterized in that several of said fitting holes (12) are uniformly distributed along the circumferential direction;

and/or the axis of the mating hole (12) passes through the center of curvature of the block body (1).

10. A tyre mold comprising a block as claimed in any one of claims 1 to 9.