CN120096000A - Tire mold insert assembly structure and application method thereof - Google Patents
Tire mold insert assembly structure and application method thereof Download PDFInfo
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- CN120096000A CN120096000A CN202510592267.2A CN202510592267A CN120096000A CN 120096000 A CN120096000 A CN 120096000A CN 202510592267 A CN202510592267 A CN 202510592267A CN 120096000 A CN120096000 A CN 120096000A
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- insert
- block
- shaping frame
- frame
- forming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/306—Exchangeable mould parts, e.g. cassette moulds, mould inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
本发明涉及模具技术领域，提出了一种轮胎模具镶块装配结构及其应用方法，包括定型架、镶块和胀紧件，其中，定型架由多个单体架呈圆形阵列构成，且每个单体架上均开设有安装孔；镶块插装在安装孔内，镶块的一端抵持定型架的内壁，另一端延伸至定型架的外侧，并设置有限位部；胀紧件位于定型架的外侧，胀紧件呈环状结构，胀紧件用于向限位部施加远离定型架中心的力，以使镶块与定型架相对固定。本发明通过设置多个单体架构成定型架，且在单体架上开设有安装孔，如此可实现镶块的安装，通过更换具有不同花纹的镶块，即可使本模具生产不同型号的轮胎，而无需重新设置整套模具，在使产品适应换代要求的同时，有效降低了开模成本。
The present invention relates to the field of mold technology, and proposes a tire mold insert assembly structure and an application method thereof, including a molding frame, an insert and a tensioning member, wherein the molding frame is composed of a plurality of single frames in a circular array, and each single frame is provided with a mounting hole; the insert is inserted into the mounting hole, one end of the insert abuts against the inner wall of the molding frame, and the other end extends to the outside of the molding frame, and a limiting portion is provided; the tensioning member is located on the outside of the molding frame, and the tensioning member is an annular structure, and the tensioning member is used to apply a force away from the center of the molding frame to the limiting portion, so that the insert and the molding frame are relatively fixed. The present invention forms a molding frame by arranging a plurality of single frames, and a mounting hole is provided on the single frame, so that the installation of the insert can be realized. By replacing inserts with different patterns, the mold can produce tires of different models without re-arranging the entire mold, which effectively reduces the mold opening cost while making the product adapt to the replacement requirements.
Description
Technical Field
The invention relates to the technical field of dies, in particular to a tire die insert assembly structure and an application method thereof.
Background
The tire mold is a special mold for tire molding, and is generally arranged into a split structure so as to facilitate assembly molding, and the inside of the mold is provided with tire patterns, so that after the tire blank is placed in the mold, the tire mold is heated, and the tire blank is extruded so as to realize the molding of the tire, and the tire is provided with corresponding patterns.
The invention patent application with the publication number of CN118906323A discloses a segmented mold which does not generate main groove and groove edges, the segmented mold comprises a pattern ring, an upper side plate and a lower side plate, the upper side plate is arranged above the pattern ring, the lower side plate is arranged below the pattern ring, when the pattern ring moves to a mold closing state, the pattern ring, the upper side plate and the lower side plate are closed to form an annular mold cavity which can be used for vulcanizing a tire blank, and the pattern ring is formed by a plurality of pattern blocks.
The tire mold in the technical scheme is provided with a plurality of pattern blocks and is matched with an upper side plate and a lower side plate, the shape of the prepared tire is single due to the single shape of the pattern blocks, the universality is poor, the performance requirements of automobiles on the tire are continuously improved along with the rapid development of automobile industry, the updating iteration of the pattern of the tire is extremely fast, in the tire mold, the updating rate of the loss is about 20%, and about 80% of the tire mold is eliminated due to the pattern outdated factor, so that how to reduce the mold opening finished product to prepare the tire with the novel pattern becomes a problem to be solved urgently.
Disclosure of Invention
In view of the above, the present invention provides a tire mold insert assembly structure with a modularized structure, which can replace inserts, and an application method thereof, so as to solve the problem of single pattern shape of the existing mold, thereby adapting to the production of rapid iteration products.
The technical scheme of the invention is realized as follows:
In one aspect, the invention provides a tire mold insert assembly structure comprising a shaping frame, an insert and an expansion piece, wherein,
The shaping frame is formed by a plurality of single frames in a circular array, and each single frame is provided with a mounting hole;
The insert is inserted in the mounting hole, one end of the insert abuts against the inner wall of the shaping frame, and the other end of the insert extends to the outer side of the shaping frame and is provided with a limiting part;
the expansion piece is located the outside of design frame, and the expansion piece is cyclic annular structure, and the expansion piece is used for exerting the power of keeping away from design frame center to spacing portion to make insert and design frame relatively fixed.
On the basis of the technical proposal, the utility model preferably further comprises a connecting piece, wherein the insert comprises a middle insert, a side insert and a stop block, wherein,
The middle insert and the side inserts are inserted into the mounting holes, and the side inserts are respectively arranged on the upper side and the lower side of the middle insert;
The middle insert and the side inserts are positioned at one end in the shaping frame, are shaping ends and are propped against the inner wall of the shaping frame;
The middle insert and the side inserts are connected with each other through a connecting piece at one end outside the shaping frame;
The stop block is a limiting part and is arranged on the side insert and propped against the expansion piece.
On the basis of the technical proposal, preferably, the connecting piece is in a rectangular frame structure, the middle insert comprises a first forming block and a first connecting block, the side insert comprises a second forming block and a second connecting block, wherein,
The first forming block is inserted into the mounting hole and abuts against the inner wall of the shaping frame;
The first connecting block is detachably connected with the first shaping block and extends to the outer side of the shaping frame;
The second forming block is inserted into the mounting hole and abuts against the inner wall of the shaping frame;
The second connecting block is detachably connected with the second molding block and extends to the outer side of the molding frame, and the stop block is arranged on the second connecting block;
the connecting piece is connected with the first connecting block and supports one end of the second connecting block far away from the second molding block.
On the basis of the technical scheme, preferably, the stop block is spaced from the shaping frame, and a first curved surface and a second curved surface are arranged on one surface of the stop block, which faces the shaping frame;
the first curved surface is concentric with the shaping frame, the stop block forms a first wall thickness, the second curved surface is eccentrically arranged, the second curved surface is connected with the first curved surface, the stop block forms a second wall thickness, and the second wall thickness is smaller than the first wall thickness;
The expansion piece is in sliding fit with the shaping frame, a concentric section which is fit with the first curved surface is arranged on the outer annular surface of the expansion piece, and an expansion section which is fit with the second curved surface is arranged on the outer annular surface of the expansion piece, and the inner annular surface of the expansion piece is fit with the shaping frame.
On the basis of the technical proposal, the utility model preferably further comprises a connecting plate, a conduit and a limit strip, wherein,
The connecting plate is provided with a forming ring and a positioning ring, and the forming ring is propped against the inner wall surface of the forming frame and the side surface of the second forming block;
the positioning ring is arranged on the peripheral surface of the forming ring and is attached to the end surface of the forming frame;
the shaping frame is provided with a through hole, the guide pipe and the positioning ring are arranged into an integrated structure, and the guide pipe penetrates through the positioning ring and is inserted into the through hole;
One end of the limiting strip is connected with the forming ring, and the other end of the limiting strip is inserted between two adjacent inserts.
On the basis of the technical proposal, preferably, the first molding block, the first connecting block, the second molding block and the second connecting block are inserted in the mounting hole, the width of the first molding block, the second molding block and the second connecting block is smaller than the width of the mounting hole, two limit bars are arranged and inserted in the connecting parts of the adjacent three inserts, or,
The first forming block, the first connecting block, the second forming block and the second connecting block are inserted into the parts in the mounting holes, the width of the parts is equal to that of the mounting holes, the number of the limiting strips corresponds to that of the inserts, and each limiting strip is inserted between two adjacent inserts.
On the basis of the technical proposal, the utility model preferably also comprises a connecting ring, a connecting rod and a compression ring, wherein the upper side and the lower side of the insert are respectively provided with a limiting part, the expansion piece is provided with two corresponding limiting parts,
The connecting ring is respectively provided with one of the two expansion pieces;
Two ends of the connecting rod are respectively connected with one connecting ring;
the compression ring is connected with the connecting ring and is in sliding fit with the connecting plate.
On the basis of the technical proposal, preferably, the thickness of the expanding piece is larger than that of the stop block, the connecting rod comprises a rod body and a limiting plate, wherein,
One end of the rod body is connected with the surface of one of the connecting rings, and the surface of the connecting ring is connected with one of the expansion pieces;
The limiting plate is arranged on the rod body, the other end of the rod body penetrates through the other connecting ring, and the other expanding piece and the limiting plate are propped against the same surface of the connecting ring.
On the basis of the technical scheme, the device preferably further comprises a driving piece, wherein the plurality of single frames are arranged into an integrated structure to form a shaping frame, and the shaping frame is provided with a protruding part;
The driving piece is arranged on the protruding part, and the movable end of the driving piece is connected with the connecting rod.
On the other hand, the invention provides an application method of the tire mold insert assembly structure, which comprises the following steps:
S1, assembling two side inserts in a mounting hole, then sliding and separating the two side inserts, and enabling a stop block to correspond to the outer wall of the shaping frame;
s2, inserting the middle insert between the two side inserts to expand the two side inserts, so as to realize connection of the inserts and the shaping frame;
s3, connecting and fixing one ends of the middle insert and the side inserts, which are positioned outside the shaping frame, through the connecting piece;
s4, assembling the expansion piece on the shaping frame, and then driving the expansion piece to rotate by using the driving piece, so that the expansion section rotates towards the first curved surface, and then the expansion fixing insert is matched with the shaping frame.
Compared with the prior art, the tire mold insert assembly structure and the application method thereof have the following beneficial effects:
(1) The shaping frame is formed by arranging the plurality of single frames, and the mounting holes are formed in the single frames, so that the mounting of the inserts can be realized, the molds can be used for producing tires of different types by replacing the inserts with different patterns, the whole set of molds are not required to be reset, and the mold opening cost is effectively reduced while the product is adapted to the updating requirement;
(2) In the tire mold insert assembly structure, a plurality of inserts are uniformly fixed through the expansion piece, the expansion piece can expand the outer ends of the inserts, and the inner ends of the inserts are stably propped against the shaping frame, so that the convenience of insert fixation is improved, the number of dismounting operation of fasteners during dismounting can be reduced, and the assembly process is simplified;
(3) The single insert consists of a middle insert, a side insert and a stop block, wherein the stop block is arranged on the side insert, and the middle insert is connected and fixed with the side insert through a connecting piece, so that the whole fixed installation of the insert can be realized only by expanding the stop block through an expanding piece, and the operation is very convenient;
(4) The expansion piece is of an annular structure and is provided with a concentric section and an expansion section, and the stop block is adaptively provided with a first curved surface and a second curved surface, so that by means of movement of the expansion section, a force far away from the center of the shaping frame can be applied to the insert to ensure stable installation of the insert;
(5) The connecting plate is arranged, the tire can be molded by matching the molding ring with the insert, the positioning ring is used for installing the guide pipe, and the guide pipe is inserted into the through hole on the shaping frame, so that the relative positioning and connection of a plurality of single frames can be realized, the stability of the structure is guaranteed, and meanwhile, the guide pipe is used for enabling hot air flow to flow through the single frames, and then heat is transferred to the insert and the connecting plate, so that the tire is heated and molded;
(6) The body of rod is connected with two go-between, and this can guarantee the position stability of expanding the tight piece, and is provided with the clamping ring on the go-between, and the clamping ring can be pressed on the connecting plate and sliding fit, is favorable to guaranteeing the position stability of connecting plate like this, and then guarantees pipe and through-hole complex stability to make its whole have stable operating mode.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a tire mold insert assembly structure of the present invention;
FIG. 2 is a front view of the tire mold insert assembly structure of the present invention;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2 in accordance with the present invention;
FIG. 4 is an enlarged view of the structure of the point A in FIG. 3 according to the present invention;
FIG. 5 is a diagram illustrating a connection plate and connection ring disassembly configuration of the tire mold insert assembly structure of the present invention;
FIG. 6 is an exploded view of the tire mold insert assembly structure of the present invention;
FIG. 7 is a block diagram of a single frame and insert assembly of the tire mold insert assembly of the present invention;
FIG. 8 is a block construction diagram of a tire mold block assembly structure of the present invention;
FIG. 9 is a block diagram of the fitting of the connecting piece to the insert of the tire mold insert assembly of the present invention;
FIG. 10 is a schematic view of another connector structure of the tire mold insert assembly structure of the present invention;
FIG. 11 is a block diagram illustrating the disassembly of a monomer mount and insert of the tire mold insert assembly structure of the present invention;
FIG. 12 is a block schematic view of a tire mold insert assembly structure of the present invention;
FIG. 13 is a block diagram of the mounting of the expander for the tire mold insert assembly structure of the present invention;
FIG. 14 is an enlarged view of the structure at point B of FIG. 13 in accordance with the present invention;
FIG. 15 is a cross-sectional view of an insert and stop bar mating structure of the tire mold insert assembly structure of the present invention;
FIG. 16 is a block diagram of a plurality of unitary shelves of the tire mold insert assembly structure of the present invention arranged as one unit;
FIG. 17 is a cross-sectional view of a tire mold insert assembly structure of the present invention with a plurality of individual shelves disposed as a unitary structure;
FIG. 18 is a schematic view of a first building block ejection interference structure of the tire mold insert assembly structure of the present invention;
FIG. 19 is a schematic view of a tire mold insert assembly structure of the present invention showing the removal of a first mold block after the placement of a stop bar;
FIG. 20 is a perspective view of a tire mold insert assembly structure of the present invention having a plurality of stop bars disposed thereon;
FIG. 21 is a schematic illustration of a second first block ejection configuration of the tire mold insert assembly of the present invention;
FIG. 22 is a second schematic illustration of a second first block ejection configuration of the tire mold insert assembly of the present invention;
FIG. 23 is a diagram showing the assembly of the driving member with the shaping frame and the connecting rod of the tire mold insert assembly structure of the present invention;
In the figure, 1, a shaping frame; 11, a single frame, 12, a protruding part, 101, a mounting hole, 102, a through hole, 2, an insert, 21, a middle insert, 211, a first forming block, 212, a first connecting block, 22, a side insert, 221, a second forming block, 222, a second connecting block, 23, a stop, 2301, a first curved surface, 2302, a second curved surface, 3, an expanding piece, 31, a concentric section, 32, an expanding section, 4, a connecting piece, 5, a connecting plate, 51, a forming ring, 52, a positioning ring, 6, a conduit, 7, a limiting bar, 8, a connecting ring, 9, a connecting rod, 91, a rod body, 92, a limiting plate, 10, a compression ring, 13 and a driving piece.
Detailed Description
The following description of the embodiments of the present invention will clearly and fully describe the technical aspects of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
As shown in fig. 1 to 23, the die insert assembly structure of the invention comprises a shaping frame 1, an insert 2, an expanding piece 3, a connecting piece 4, a connecting plate 5, a conduit 6, a limit strip 7, a connecting ring 8, a connecting rod 9, a pressing ring 10 and a driving piece 13.
As shown in fig. 1-6, the shaping frame 1 is formed by a plurality of single frames 11 in a circular array, and each single frame 11 is provided with a mounting hole 101, an insert 2 is inserted into the mounting hole 101, one end of the insert 2 abuts against the inner wall of the shaping frame 1, and the other end extends to the outer side of the shaping frame 1 and is provided with a limiting part, an expanding piece 3 is positioned at the outer side of the shaping frame 1, the expanding piece 3 is in a ring-shaped structure, and the expanding piece 3 is used for applying a force far away from the center of the shaping frame 1 to the limiting part so as to enable the insert 2 to be relatively fixed with the shaping frame 1;
In the structure of the shaping frame 1, a plurality of single frames 11 are arranged, the inserts 2 are assembled in the mounting holes 101 of the single frames 11, and after the plurality of single frames 11 are arranged in a circular array, a cavity for shaping the tire is formed;
In order to improve the convenience of fixing the insert 2, one end of the insert 2 positioned in the shaping frame 1 abuts against the inner wall of the shaping frame 1, and the other end extends to the outer side of the shaping frame 1 and is provided with a limiting part;
The expansion piece 3 is of an annular structure, so that the expansion piece 3 can be sleeved on the shaping frame 1 formed by a plurality of single frames 11, and thrust is applied to the limiting part of the insert 2, so that the insert 2 can obtain a force far away from the center of the shaping frame 1, and the insert 2 is positioned at one end in the shaping frame 1, can stably abut against the inner wall of the shaping frame 1, and is connected and fixed;
The arrangement of the structure can ensure that all the inserts 2 are locked and fixed by virtue of the expansion piece 3, so that the convenience of disassembly and assembly is effectively improved;
In this structure, insert 2 is installed in the mounting hole 101 of monomer frame 11, so through changing the insert 2 that has different decorative patterns, can make this mould produce the tire of different models, only need insert 2 open the mould can, and need not to reset the whole mould, when making the product adapt to the requirement of taking a new place of production, effectively reduced the die sinking cost.
As shown in fig. 16 and 17, in some embodiments, all the monomer frames 11 are integrally formed to form a whole, and a plurality of mounting holes 101 are formed to reduce the number of components.
As shown in fig. 7 to 11, the insert 2 comprises a middle insert 21, a side insert 22 and a stop block 23, wherein the middle insert 21 and the side insert 22 are inserted into the mounting hole 101, and the side insert 22 is respectively arranged on the upper side and the lower side of the middle insert 21, one end of the middle insert 21 and the side insert 22, which is positioned in the shaping frame 1, is a shaping end and abuts against the inner wall of the shaping frame 1, one end of the middle insert 21 and one end of the side insert 22, which are positioned outside the shaping frame 1, are mutually connected through the connecting piece 4, the stop block 23 is a limiting part, and the stop block 23 is arranged on the side insert 22 and abuts against the expanding piece 3;
In the above-described structure, the insert 2 is provided with a pattern for forming a pattern on the tire surface, and in order to optimize the fixing structure and improve versatility, the single insert 2 is divided into one middle insert 21 and two side inserts 22, and when the single insert is connected with the single frame 11, the middle insert 21 and the side inserts 22 are both inserted into the mounting holes 101 and connected into an integral structure through the connecting piece 4;
Therefore, when the insert 2 is fixed, the expansion piece 3 applies expansion force to the stop block 23, so that the whole insert 2 and the shaping frame 1 are connected and fixed, and the assembly is convenient;
wherein, one end of the middle insert 21 and the side insert 22 positioned in the shaping frame 1 is a shaping end, and the width of the part is larger than the other end, so that the inner side of the shaping frame 1 can be inserted and supported against the inner wall surface of the shaping frame 1;
this arrangement of structures further differentiates the pattern formation, and in some embodiments, only one of the center insert 21 or side insert 22 may be replaced, thereby creating a new pattern structure.
As shown in fig. 9, the connecting piece 4 is in a rectangular frame structure, the middle insert 21 comprises a first forming block 211 and a first connecting block 212, the side insert 22 comprises a second forming block 221 and a second connecting block 222, wherein the first forming block 211 is inserted into the mounting hole 101 and abuts against the inner wall of the forming frame 1, the first connecting block 212 is detachably connected with the first forming block 211 and extends to the outer side of the forming frame 1, the second forming block 221 is inserted into the mounting hole 101 and abuts against the inner wall of the forming frame 1, the second connecting block 222 is detachably connected with the second forming block 221 and extends to the outer side of the forming frame 1, the stop block 23 is arranged on the second connecting block 222, and the connecting piece 4 is connected with the first connecting block 212 and abuts against one end of the second connecting block 222 far away from the second forming block 221;
With the above configuration, the middle insert 21 is formed of the first molding block 211 and the first connecting block 212, and the side insert 22 is formed of the second molding block 221 and the second connecting block 222;
Specifically, the second molding block 221 and the second connecting block 222 are fixedly connected by bolts, and when assembled with the mounting hole 101, the two side inserts 22 can be directly inserted into the mounting hole 101 and are relatively separated, so as to leave the mounting position of the middle insert 21;
the first molding block 211 and the first connecting block 212 are fixedly connected by bolts, and when the middle insert 21 is installed, the first molding block 211 is inserted between the two side inserts 22 from the inner side of the molding frame 1, then the first connecting block 212 is inserted from the outer side, and the first connecting block 212 and the first molding block 211 are connected and fixed;
In this way, the inner ends of the first molding block 211 and the second molding block 221 are abutted against the inner wall of the shaping frame 1, meanwhile, the stop block 23 on the second connecting block 222 is corresponding to the expansion piece 3, the connecting piece 4 on the first connecting block 212 is abutted against the second connecting blocks 222 of the two side inserts 22, and when the expansion piece 3 applies expansion force to the stop block 23, the expansion piece 3 is simultaneously transferred to the side inserts 22 and the middle insert 21, so that the integral fixation is realized;
When dismantling, first connecting block 212 and first shaping piece 211 split earlier, later take out first connecting block 212 and first shaping piece 211 alone, then make room and can take out lateral part insert 22, lateral part insert 22's second shaping piece 221 and second connecting block 222 need not the split, directly take out from shaping frame 1 inboard can, have the advantage of easy dismounting.
As shown in fig. 10, in some embodiments, the connecting piece 4 does not adopt a rectangular frame structure, but is provided with a connecting plate at one end of the middle insert 21 and the side insert 22, which is positioned outside the shaping frame 1, and is connected in series and fixed by bolts, so that when the connecting piece is detached, the middle insert 21 and the side insert 22 can be directly taken out after the bolts are removed;
as shown in fig. 11, when the intermediate insert 21 and the side insert 22 are connected by bolts, if the intermediate insert 21 needs to be removed, the side insert 22 may be removed after the intermediate insert 21 is removed.
As shown in fig. 7 and 12-14, a stop block 23 is spaced from a shaping frame 1, a first curved surface 2301 and a second curved surface 2302 are arranged on one surface of the stop block 23 facing the shaping frame 1, the first curved surface 2301 is concentric with the shaping frame 1, the stop block 23 forms a first wall thickness, the second curved surface 2302 is eccentrically arranged, the second curved surface 2302 is connected with the first curved surface 2301, the stop block 23 forms a second wall thickness, and the second wall thickness is smaller than the first wall thickness;
In the structure, the expansion piece 3 adopts a cam type expansion structure, and the expansion section 32 of the expansion piece has larger diameter than the concentric section 31, and the corresponding stop block 23 is provided with a first curved surface 2301 and a second curved surface 2302;
the first curved surface 2301 is concentrically arranged with the shaping frame 1 and is in sliding fit with the concentric section 31 of the expansion piece 3, the second curved surface 2302 is connected with the first curved surface 2301 and is matched with the expansion section 32 of the expansion piece 3, the wall thickness of the stop 23 at the position where the first curved surface 2301 is arranged is larger than that of the second curved surface 2302, so that when the expansion piece 3 rotates, the expansion section 32 rotates towards the first curved surface 2301, the expansion force is applied to the insert 2, and otherwise, the expansion force is relieved;
specifically, the expansion piece 3 is provided with a plurality of concentric sections 31 and expansion sections 32, so that the fixation of all the inserts 2 can be realized;
Specifically, the stop 23 may be configured in a profiled configuration to increase the wall thickness at the location where the second curved surface 2302 is disposed, so that the wall thickness of the portion tends to be consistent with that of the first curved surface 2301 where the stop 23 is disposed, thereby increasing structural stability.
As shown in fig. 4 and 20, the connecting plate 5 is provided with a forming ring 51 and a positioning ring 52, wherein the forming ring 51 abuts against the inner wall surface of the forming frame 1 and the side surface of the second forming block 221, the positioning ring 52 is arranged on the outer peripheral surface of the forming ring 51 and is attached to the end surface of the forming frame 1, the forming frame 1 is provided with a through hole 102, the guide pipe 6 and the positioning ring 52 are arranged as an integrated structure, and the guide pipe 6 penetrates through the positioning ring 52 and is inserted into the through hole 102;
In the above structure, the connecting plate 5 has two parts, namely the forming ring 51 and the positioning ring 52, wherein the forming ring 51 directly contacts the inner wall of the shaping frame 1 and is simultaneously abutted against the insert 2, and the part is used as a part of the mold forming cavity to be matched with the insert 2 to complete the forming of the tire;
Specifically, the inner diameter of the forming ring 51 is set to be as close to the inner diameter of the forming frame 1 as possible, so that the convenience of falling out after the tire is formed is improved, the inner wall surface formed by the plurality of inserts 2 is an annular surface, and the inner diameter of the forming ring 51 is smaller than the inner diameter of the annular surface, so that the forming ring is matched with the inserts 2, and the tire is assisted to be formed;
The positioning ring 52 is used for connection and assembly, the positioning ring 52 is provided with the guide pipe 6, and the shaping frame 1 is provided with the through hole 102, so that when the positioning ring is assembled, the connecting plate 5 can be connected with the shaping frame 1 through the insertion connection of the guide pipe 6 and the through hole 102, and in the positioning structure, the guide pipe 6 is provided with a plurality of guide pipes, after the through holes 102 are inserted, the relative limit of all the single frames 11 can be realized, and the structural stability is further ensured;
the guide pipe 6 is used for circulating hot air flow, so that the shaping frame 1 is heated, and the shaping of the tire is further promoted.
As shown in fig. 5, 6 and 15, one end of the limit bar 7 is connected with the forming ring 51, and the other end is inserted between two adjacent inserts 2;
The limiting strip 7 is used for filling and limiting the insert 2 and forming a cavity for forming the tire;
meanwhile, the arrangement of the limiting strips 7 can further strengthen the relative limiting among the connecting plate 5, the insert 2 and the shaping frame 1, and further ensure the stability of the structure.
As shown in fig. 8, 18 and 19, the first molding block 211, the first connecting block 212, the second molding block 221 and the second connecting block 222 are inserted into the mounting hole 101, the width of each of the first molding block, the second molding block and the second connecting block is smaller than the width of the mounting hole 101, and two limit strips 7 are arranged and inserted into the connecting positions of the adjacent three inserts 2;
As shown in fig. 18, which shows the interference structure of the insert 2, when the first molding block 211 is inserted into the mounting hole 101 and is the same width as the mounting hole 101, the interference problem with the adjacent first molding block 211 occurs when the first molding block 211 is removed, and the second molding block 221 is also the same;
As shown in fig. 5, 15, 21 and 22, if the width of the first molding block 211, the first connecting block 212, the second molding block 221 and the second connecting block 222 is smaller than the width of the mounting hole 101, only two spacing bars 7 may be provided, and after the spacing bars 7 are removed, the first molding block 211 and the second molding block 221 may have a lateral sliding space, so that the insert 2 having the spacing bars 7 on both sides may be removed first, and then the other inserts 2 may be gradually removed from one side.
As shown in fig. 20, the first molding block 211, the first connecting block 212, the second molding block 221 and the second connecting block 222 are inserted into the mounting hole 101, the width is equal to the width of the mounting hole 101, the number of the limit strips 7 corresponds to the number of the inserts, and each limit strip 7 is inserted between two adjacent inserts 2;
in the above structure, if the two sides of the first molding block 211, the first connecting block 212, the second molding block 221 and the second connecting block 222 are abutted against the inner wall of the mounting hole 101, the stability of the connection between the insert 2 and the shaping frame 1 can be increased, but the first molding block 211 and the second molding block 221 of the adjacent insert 2 will interfere when being disassembled, and at this time, the two sides of all the inserts 2 need to be provided with the limiting bars 7, so that the structural interference of the insert 2 when being disassembled is avoided.
As shown in fig. 4, 5 and 10, the upper side and the lower side of the insert 2 are respectively provided with a limiting part, and two expansion pieces 3 are arranged corresponding to the limiting parts, wherein one connecting ring 8 is respectively arranged on each of the two expansion pieces 3;
In order to ensure the stability of the expansion of the insert 2 by the expansion piece 3, the two sides of the insert 2 are provided with the limiting parts, namely the stop blocks 23, so that when the insert 2 is fixed, the two expansion pieces 3 can apply stable expansion force to the insert 2 to ensure the stable posture of the insert 2 and eliminate the tiny assembly error of the insert 2 and the shaping frame 1;
Specifically, the connecting ring 8 is also provided with a pressing ring 10, and the pressing ring 10 is used for pressing the connecting plate 5 and is in sliding fit with the connecting plate 5, so that the pressing ring 10 can not interfere with the connecting plate 5 when the connecting ring 8 and the expanding piece 3 rotate;
In some embodiments, the expansion element 3 on the upper side is directly connected with the connecting rod 9, meanwhile, the side is not provided with the compression ring 10, and the connecting plate 5 is provided with driving elements such as a cylinder for driving so as to be buckled on the shaping frame 1, or the connecting plate 5 is opened, so that the tire is conveniently taken out after being shaped, and the convenience of application is improved;
in this embodiment, the guide tube 6 is not provided, and the mold is placed in a heating furnace for tire molding, so that abrasion between the guide tube 6 and the through hole 102 caused by non-breaking of the mold is avoided.
As shown in fig. 4, the thickness of the expanding member 3 is larger than that of the stop block 23, the connecting rod 9 comprises a rod body 91 and a limiting plate 92, wherein one end of the rod body 91 is connected with the surface of one of the connecting rings 8, and the surface of the connecting ring 8 is connected with one of the expanding members 3;
In the structure, when the expansion piece 3 is arranged, the thickness of the expansion piece is larger than that of the stop block 23 on the insert 2, and meanwhile, the connecting rod 9 for connecting the two connecting rings 8 is provided with the limiting plate 92, so that the surface of the connecting ring 8 can be prevented from contacting the stop block 23 when the expansion piece is integrated;
Specifically, the rod body 91 of the connecting rod 9 can be provided with one end and one of the connecting rings 8 as an integral structure, the other end and the other connecting ring 8 are fixedly connected through nuts, and the two ends of the rod body can be respectively connected with one connecting ring 8 through nuts, so that a detachable structure is realized;
Specifically, when in operation, the connecting plate 5 is used as a positioning piece and is connected with fixing equipment such as a base, so as to realize circumferential positioning of the shaping frame 1, and the connecting ring 8, the connecting rod 9 and the expansion piece 3 can rotate under the drive of the driving piece.
As shown in fig. 23, a plurality of single frames 11 are arranged into an integral structure to form a shaping frame 1, and a convex part 12 is arranged on the shaping frame 1, a driving piece 13 is arranged on the convex part 12, and the movable end of the driving piece 13 is connected with a connecting rod 9;
In the insert assembling structure, the expansion piece 3 is sleeved on the shaping frame 1 and is connected with the connecting rod 9 through the connecting ring 8, so that after the driving piece 13 is arranged on the convex part 12 on the single frame 11 and is connected with the connecting rod 9, the driving piece can drive the expansion piece 3 to perform relative movement with the shaping frame 1 and the insert 2, and the expansion piece 3 can lock and fix the insert 2;
In some embodiments, the connecting plate 5 can be used as a positioning piece to be connected to the base, and a driving piece is arranged on the base to drive the expanding piece 3 to rotate.
The application method of the tire mold insert assembly structure comprises the following steps:
s1, assembling two side inserts 22 in the mounting hole 101, then sliding and separating the two side inserts 22, and enabling the stop block 23 to correspond to the outer wall of the shaping frame 1;
s2, inserting the middle insert 21 between the two side inserts 22 to expand the two side inserts 22, so as to realize connection of the insert 2 and the shaping frame 1;
s3, connecting and fixing one ends of the middle insert 21 and the side insert 22, which are positioned outside the shaping frame 1, through the connecting piece 4;
S4, assembling the expansion piece 3 on the shaping frame 1, and then driving the expansion piece 3 to rotate by using the driving piece, so that the expansion section 32 rotates towards the first curved surface 2301, and then the shaping frame 1 is matched to expand and fix the insert 2.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510592267.2A CN120096000B (en) | 2025-05-09 | 2025-05-09 | Tire mold insert assembly structure and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510592267.2A CN120096000B (en) | 2025-05-09 | 2025-05-09 | Tire mold insert assembly structure and application method thereof |
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| CN120096000A true CN120096000A (en) | 2025-06-06 |
| CN120096000B CN120096000B (en) | 2025-07-29 |
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|---|---|
| CN120096000B (en) | 2025-07-29 |
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Denomination of invention: A tire mold insert assembly structure and its application method Granted publication date: 20250729 Pledgee: Rizhao Bank Co.,Ltd. Weifang Shouguang Branch Pledgor: SHANDONG LICHUANG MOULD CO.,LTD. Registration number: Y2025980040445 |