A tire mold insert assembly structure and its application method

Abstract

The present invention relates to the technical field of molds, and provides a tire mold insert assembly structure and an application method thereof, which include a shaping frame, an insert and a tightening member. Among them, the shaping frame is composed of a plurality of single frames arranged in a circular array, and each single frame is provided with an installation hole; the insert is inserted into the installation hole, one end of the insert abuts against the inner wall of the shaping frame, the other end extends to the outside of the shaping frame, and a limiting portion is provided; the tightening member is located outside the shaping frame, the tightening member is in a ring structure, and the tightening member is used to apply a force away from the center of the shaping frame to the limiting portion, so that the insert and the shaping frame are relatively fixed. By arranging a plurality of single frames to form the shaping frame and providing installation holes in the single frames, the installation of the insert can be realized. By replacing the inserts with different patterns, different models of tires can be produced by this mold without resetting the whole set of molds, which effectively reduces the mold opening cost while meeting the requirements of product replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and in particular to a tire mold insert assembly structure and an application method thereof. Background Art

[0002] Tire molds are special molds used for tire molding. They are usually set as split structures to facilitate assembly and molding. The inside of the mold is provided with tire patterns. After the tire blank is placed in the mold, the tire mold is heated and the tire blank is squeezed to achieve the shaping of the tire. In this way, the tire will have the corresponding pattern.

[0003] The existing invention patent application with application publication number CN118906323A discloses an active mold that does not produce main groove groove rubber edges. The active mold includes a pattern ring, an upper side plate and a lower side plate. The upper side plate is arranged above the pattern ring and the lower side plate is arranged below the pattern ring. When the pattern ring moves into a closed mold state, the pattern ring, the upper side plate and the lower side plate are closed to form an annular mold cavity that can be used to vulcanize the tire blank. The pattern ring is composed of a plurality of pattern blocks.

[0004] For example, the tire mold in the above technical solution is provided with a plurality of pattern blocks and is composed of an upper side plate and a lower side plate. Since the shape of the pattern blocks is single, the shape of the tire that can be produced is also single and the versatility is poor. With the rapid development of the automobile industry, the performance requirements of automobiles for tires are constantly improving, and the tire pattern styles are updated and iterated very quickly. Among tire molds, updates due to wear and tear account for about 20%, and about 80% of tire molds are eliminated due to outdated patterns. Therefore, how to reduce the mold finished product to prepare tires with new pattern styles has become an urgent problem to be solved. Summary of the Invention

[0005] In view of this, the present invention proposes a tire mold insert assembly structure with a modular structure and replaceable inserts, and an application method thereof, to solve the problem of the single pattern shape of existing molds, thereby adapting to the production of rapidly iterative products.

[0006] The technical solution of the present invention is achieved in this way:

[0007] In one aspect, the present invention provides a tire mold insert assembly structure, comprising a forming frame, an insert, and a tightening member, wherein:

[0008] The forming frame is composed of multiple single frames in a circular array, and each single frame is provided with a mounting hole;

[0009] The insert is inserted into the mounting hole, one end of the insert abuts against the inner wall of the forming frame, and the other end extends to the outside of the forming frame and is provided with a limiting portion;

[0010] The expansion member is located outside the shaping frame. The expansion member has an annular structure and is used to apply a force away from the center of the shaping frame to the limiting portion, so that the insert block and the shaping frame are relatively fixed.

[0011] Based on the above technical solution, preferably, it further includes a connecting member. The insert block includes an intermediate insert block, a side insert block and a stop block. Among them,

[0012] The intermediate insert block and the side insert block are inserted into the installation hole, and one side insert block is provided on each of the upper and lower sides of the intermediate insert block;

[0013] One end of the intermediate insert block and the side insert block located inside the shaping frame is a forming end and abuts against the inner wall of the shaping frame;

[0014] One end of the intermediate insert block and the side insert block located outside the shaping frame are connected to each other through a connecting member;

[0015] The stop block is a limiting portion, and the stop block is arranged on the side insert block and abuts against the expansion member.

[0016] Based on the above technical solution, preferably, the connecting member has a rectangular frame structure. The intermediate insert block includes a first forming block and a first connecting block, and the side insert block includes a second forming block and a second connecting block. Among them,

[0017] The first forming block is inserted into the installation hole and abuts against the inner wall of the shaping frame;

[0018] The first connecting block is detachably connected to the first forming block and extends to the outside of the shaping frame;

[0019] The second forming block is inserted into the installation hole and abuts against the inner wall of the shaping frame;

[0020] The second connecting block is detachably connected to the second forming block and extends to the outside of the shaping frame, and the stop block is arranged on the second connecting block;

[0021] The connecting member is connected to the first connecting block and abuts against one end of the second connecting block away from the second forming block.

[0022] Based on the above technical solution, preferably, the stop block is spaced from the shaping frame, and a first curved surface and a second curved surface are provided on the surface of the stop block facing the shaping frame;

[0023] The first curved surface is concentric with the shaping frame and forms a first wall thickness of the stop block. The second curved surface is eccentrically arranged, the second curved surface is connected to the first curved surface and forms a second wall thickness of the stop block, and the second wall thickness is less than the first wall thickness;

[0024] The expansion member is in sliding fit with the shaping frame. A concentric section that fits the first curved surface and a tightening section that fits the second curved surface are provided on the outer ring surface of the expansion member, and the inner ring surface of the expansion member fits the shaping frame.

[0025] Based on the above technical solutions, preferably, it further includes a connecting plate, a conduit and a limiting strip. Among them,

[0026] The connecting plate has a forming ring and a positioning ring. The forming ring abuts against the inner wall surface of the shaping frame and the side surface of the second forming block;

[0027] The positioning ring is arranged on the outer peripheral surface of the forming ring and fits against the end face of the shaping frame;

[0028] The shaping frame is provided with a through hole. The conduit and the positioning ring are set as an integral structure. The conduit penetrates through the positioning ring and is inserted into the through hole;

[0029] One end of the limiting strip is connected to the forming ring, and the other end is inserted between two adjacent inserts.

[0030] Based on the above technical solutions, preferably, the widths of the parts of the first forming block, the first connecting block, the second forming block and the second connecting block inserted into the installation holes are all smaller than the width of the installation holes. There are two limiting strips, which are inserted at the joints of three adjacent inserts; or,

[0031] The widths of the parts of the first forming block, the first connecting block, the second forming block and the second connecting block inserted into the installation holes are all equal to the width of the installation holes. The number of limiting strips corresponds to the number of inserts, and each limiting strip is inserted between two adjacent inserts.

[0032] Based on the above technical solutions, preferably, it further includes a connecting ring, a connecting rod and a pressing ring. Limiting parts are arranged on both the upper and lower sides of the insert. There are two expansion parts corresponding to the limiting parts. Among them,

[0033] One connecting ring is arranged on each of the two expansion parts;

[0034] Both ends of the connecting rod are connected to one connecting ring each;

[0035] The pressing ring is connected to the connecting ring and is in sliding fit with the connecting plate.

[0036] Based on the above technical solutions, preferably, the thickness of the expansion part is greater than the thickness of the stop block. The connecting rod includes a rod body and a limiting plate. Among them,

[0037] One end of the rod body is connected to the surface of one of the connecting rings, and the surface of this connecting ring is connected to one of the expansion parts;

[0038] 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 expansion part and the limiting plate abut against the same surface of this connecting ring.

[0039] On the basis of the above technical solution, preferably, it further includes a driving member, a plurality of single frames are provided as an integrated structure to form a shaping frame, and a protrusion is provided on the shaping frame;

[0040] The driving member is arranged on the protruding portion, and the movable end of the driving member is connected to the connecting rod.

[0041] In another aspect, the present invention provides an application method of the tire mold insert assembly structure, comprising the following steps:

[0042] S1. Install two side inserts in the mounting holes, then slide the two side inserts apart and align the stoppers with the outer wall of the forming frame;

[0043] S2. Insert the middle insert between the two side inserts to tighten the two side inserts and connect the inserts to the forming frame;

[0044] S3. Connect and fix the middle insert and the side insert outside the forming frame through the connecting piece;

[0045] S4. Assemble the expansion member on the forming frame, and then use the driving member to drive the expansion member to rotate, so that the expansion section rotates toward the first curved surface, and then cooperates with the forming frame to expand and fix the insert.

[0046] The tire mold insert assembly structure and application method of the present invention have the following beneficial effects compared with the prior art:

[0047] (1) The molding frame is formed by setting up multiple single frames, and the single frames are provided with mounting holes, so that the inserts can be installed. By replacing the inserts with different patterns, the mold can produce different types of tires without having to reset the entire mold. This effectively reduces the mold opening cost while making the product adapt to the upgrade requirements;

[0048] (2) In the tire mold insert assembly structure, several inserts are fixed uniformly by means of expansion members. The expansion members can expand the outer ends of the inserts, while the inner ends of the inserts are stably supported against the forming frame. This improves the convenience of insert fixation, reduces the number of fastener disassembly and assembly operations during disassembly, and simplifies the assembly process.

[0049] (3) A single insert is composed of a middle insert, a side insert and a stopper, wherein the stopper is arranged on the side insert, and the middle insert is also connected and fixed to the side insert through a connecting piece. Therefore, the entire insert can be fixed and installed by tightening the stopper through the tightening piece, which is very convenient to operate;

[0050] (4) The expansion member is arranged in an annular structure and is provided with a concentric section and an expansion section, while the stop block is adaptively provided with a first curved surface and a second curved surface. Thus, by relying on the movement of the expansion section, a force away from the center of the shaping frame can be applied to the insert block to ensure the stable installation of the insert block. At the same time, the inner ring surface of the expansion member fits the shaping frame, so that it can cooperate with the concentric section to achieve stable connection and cooperation with the single frame and the insert block.

[0051] (5) By providing a connecting plate, it can cooperate with the forming ring and the insert block to form a tire. The positioning ring is used to install a conduit, and the conduit is inserted into the through hole on the shaping frame. This can achieve the relative positioning and connection of several single frames, which is beneficial to ensuring the stability of the structure. At the same time, the conduit is used to allow hot air to flow through the single frame, and then transfer heat to the insert block and the connecting plate, thereby realizing the heating and forming of the tire.

[0052] (6) The rod body is connected to two connecting rings, which can ensure the stable position of the expansion member. A pressure ring is provided on the connecting ring, and the pressure ring can press on the connecting plate and slide in cooperation. This is beneficial to ensuring the stable position of the connecting plate, and further ensuring the stability of the cooperation between the conduit and the through hole, so that the whole has a stable working condition. Description of the Drawings

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0054] Figure 1 It is a three-dimensional view of the insert block assembly structure of the tire mold of the present invention;

[0055] Figure 2 It is the front view of the insert block assembly structure of the tire mold of the present invention;

[0056] Figure 3 It is of the present invention Figure 2 The sectional view taken along the line A-A in;

[0057] Figure 4 It is of the present invention Figure 3 The enlarged view of the structure at point A in;

[0058] Figure 5 It is the disassembled view of the connecting plate and the connecting ring of the insert block assembly structure of the tire mold of the present invention;

[0059] Figure 6 It is the exploded view of the insert block assembly structure of the tire mold of the present invention;

[0060] Figure 7It is the assembly structure diagram of the monomer frame and the insert block of the tire mold insert block assembly structure of the present invention;

[0061] Figure 8 It is the insert block structure diagram of the tire mold insert block assembly structure of the present invention;

[0062] Figure 9 It is the mating structure diagram of the connecting piece and the insert block of the tire mold insert block assembly structure of the present invention;

[0063] Figure 10 It is the schematic diagram of another connecting piece structure of the tire mold insert block assembly structure of the present invention;

[0064] Figure 11 It is the disassembly structure diagram of the monomer frame and the insert block of the tire mold insert block assembly structure of the present invention;

[0065] Figure 12 It is the schematic diagram of the stop block structure of the tire mold insert block assembly structure of the present invention;

[0066] Figure 13 It is the installation structure diagram of the expansion piece of the tire mold insert block assembly structure of the present invention;

[0067] Figure 14 It is of the present invention Figure 13 Enlargement of the B point structure in

[0068] Figure 15 It is the sectional view of the mating structure of the insert block and the limit strip of the tire mold insert block assembly structure of the present invention;

[0069] Figure 16 It is the structure diagram of multiple monomer frames of the tire mold insert block assembly structure of the present invention set as a whole;

[0070] Figure 17 It is the sectional view of the structure of multiple monomer frames of the tire mold insert block assembly structure of the present invention set as a whole;

[0071] Figure 18 It is the schematic diagram of the interference structure of the first forming block coming out of the tire mold insert block assembly structure of the present invention;

[0072] Figure 19 It is the schematic diagram of the structure of the first forming block coming out after setting the limit strip in the tire mold insert block assembly structure of the present invention;

[0073] Figure 20 It is the three-dimensional view of the tire mold insert block assembly structure of the present invention with multiple limit strips set;

[0074] Figure 21 It is the schematic diagram of the second structure of the first forming block coming out of the tire mold insert block assembly structure of the present invention Figure One ;

[0075] Figure 22 Schematic diagram of the second first forming block ejection structure of the tire mold insert assembly structure of the present invention Figure Two ;

[0076] Figure 23 Structural diagram of the cooperation between the driving member, the shaping frame and the connecting rod of the tire mold insert assembly structure of the present invention

[0077] In the figure: 1. Shaping frame; 11. Monomer frame; 12. Protruding part; 101. Mounting hole; 102. Through hole; 2. Insert; 21. Intermediate insert; 211. First forming block; 212. First connecting block; 22. Side insert; 221. Second forming block; 222. Second connecting block; 23. Stop block; 2301. First curved surface; 2302. Second curved surface; 3. Tightening member; 31. Concentric section; 32. Tightening section; 4. Connecting member; 5. Connecting plate; 51. Forming ring; 52. Positioning ring; 6. Duct; 7. Limiting strip; 8. Connecting ring; 9. Connecting rod; 91. Rod body; 92. Limiting plate; 10. Pressing ring; 13. Driving member. Specific embodiments

[0078] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0079] As Figures 1 to 23 shown, the mold insert assembly structure of the present invention includes a shaping frame 1, an insert 2, a tightening member 3, a connecting member 4, a connecting plate 5, a duct 6, a limiting strip 7, a connecting ring 8, a connecting rod 9, a pressing ring 10 and a driving member 13.

[0080] As Figures 1 to 6 shown, the shaping frame 1 is composed of a plurality of monomer frames 11 arranged in a circular array, and each monomer frame 11 is provided with a mounting hole 101; the 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 outside of the shaping frame 1 and is provided with a limiting portion; the tightening member 3 is located outside the shaping frame 1, the tightening member 3 has an annular structure, and the tightening member 3 is used to apply a force away from the center of the shaping frame 1 to the limiting portion, so that the insert 2 and the shaping frame 1 are relatively fixed;

[0081] In the above structure, in the structure of the shaping frame 1, there are a plurality of monomer frames 11, and the insert 2 is assembled in the mounting hole 101 of the monomer frame 11. After the plurality of monomer frames 11 are arranged in a circular array, a chamber for tire shaping is formed;

[0082] Among them, in order to improve the convenience of fixing the insert block 2, one end of the insert block 2 located inside the shaping frame 1 abuts against the inner wall of the shaping frame 1, and the other end extends to the outside of the shaping frame 1 and is provided with a limiting portion;

[0083] The expansion member 3 is arranged in an annular structure. In this way, the expansion member 3 can be sleeved on the shaping frame 1 composed of a plurality of single frames 11, and a thrust is applied to the limiting portion of the insert block 2, so that the insert block 2 obtains a force away from the center of the shaping frame 1, so that one end of the insert block 2 located inside the shaping frame 1 can stably abut against the inner wall of the shaping frame 1 to achieve connection and fixation;

[0084] With this structure, all the insert blocks 2 are locked and fixed by relying on the expansion member 3, effectively improving the convenience of disassembly and assembly;

[0085] In this structure, the insert block 2 is installed in the installation hole 101 of the single frame 11. In this way, by replacing the insert block 2 with different patterns, the mold can produce tires of different models. It only needs to mold the insert block 2, and there is no need to reset the whole set of molds. While meeting the requirements of product replacement, the mold opening cost is effectively reduced.

[0086] Such as Figure 16 and Figure 17 As shown, in some embodiments, all the single frames 11 are integrally formed to form a whole, and several installation holes 101 are opened to reduce the number of components.

[0087] Such as Figures 7 to 11 As shown, the insert block 2 includes an intermediate insert block 21, side insert blocks 22 and a stop block 23. Among them, the intermediate insert block 21 and the side insert blocks 22 are inserted into the installation hole 101, and one side insert block 22 is arranged on each of the upper side and the lower side of the intermediate insert block 21; the ends of the intermediate insert block 21 and the side insert blocks 22 located inside the shaping frame 1 are shaping ends and abut against the inner wall of the shaping frame 1; the ends of the intermediate insert block 21 and the side insert blocks 22 located outside the shaping frame 1 are connected to each other through a connecting member 4; the stop block 23 is a limiting portion, and the stop block 23 is arranged on the side insert block 22 and abuts against the expansion member 3;

[0088] In the above structure, the insert block 2 is provided with patterns to form the patterns on the tire surface. In order to optimize the fixing structure and improve the versatility, the single insert block 2 is divided into an intermediate insert block 21 and two side insert blocks 22. When connecting with the single frame 11, the intermediate insert block 21 and the side insert blocks 22 are both inserted into the installation hole 101 and connected into an integral structure through the connecting member 4;

[0089] In this way, when fixing the insert block 2, by applying an expansion force to the stop block 23 by the expansion member 3, the connection and fixation of the whole insert block 2 and the shaping frame 1 can be realized, which has the advantage of convenient assembly;

[0090] Among them, one end of the middle insert block 21 and the side insert block 22 located inside the shaping frame 1 is the shaping end, and the width of this part is larger than that of the other end, so that it can be inserted from the inner side of the shaping frame 1 and abut against the inner wall surface of the shaping frame 1;

[0091] With this structure set, the pattern composition is further differentiated. In some embodiments, only one of the middle insert block 21 or the side insert block 22 can be replaced to form a new pattern structure.

[0092] As Figure 9 shown, the connecting member 4 has a rectangular frame structure. The middle insert block 21 includes a first shaping block 211 and a first connecting block 212, and the side insert block 22 includes a second shaping block 221 and a second connecting block 222. Among them, the first shaping block 211 is inserted into the mounting hole 101 and abuts against the inner wall of the shaping frame 1; the first connecting block 212 is detachably connected to the first shaping block 211 and extends to the outside of the shaping frame 1; the second shaping block 221 is inserted into the mounting hole 101 and abuts against the inner wall of the shaping frame 1; the second connecting block 222 is detachably connected to the second shaping block 221 and extends to the outside of the shaping frame 1, and the stop block 23 is arranged on the second connecting block 222; the connecting member 4 is connected to the first connecting block 212 and abuts against one end of the second connecting block 222 away from the second shaping block 221;

[0093] With the above structure, the middle insert block 21 is composed of the first shaping block 211 and the first connecting block 212, and the side insert block 22 is composed of the second shaping block 221 and the second connecting block 222;

[0094] Specifically, the second shaping block 221 and the second connecting block 222 are fixedly connected by bolts. When assembling with the mounting hole 101, it can be directly inserted. The two side insert blocks 22 are inserted into the mounting hole 101 and separated relatively to leave the installation position of the middle insert block 21;

[0095] The first shaping block 211 and the first connecting block 212 are also fixedly connected by bolts. When installing the middle insert block 21, the first shaping block 211 is inserted from the inner side of the shaping frame 1 between the two side insert blocks 22, and then the first connecting block 212 is inserted from the outside and the first connecting block 212 is connected and fixed to the first shaping block 211;

[0096] In this way, the inner ends of the first shaping block 211 and the second shaping block 221 will both abut against the inner wall of the shaping frame 1. At the same time, the stop block 23 on the second connecting block 222 will correspond to the expansion member 3, and the connecting member 4 on the first connecting block 212 will abut against the second connecting block 222 of the two side insert blocks 22. When the expansion member 3 applies an expansion force to the stop block 23, it will be transmitted to the side insert block 22 and the middle insert block 21 at the same time to achieve overall fixation;

[0097] When disassembling, first disassemble the first connecting block 212 from the first forming block 211, and then take out the first connecting block 212 and the first forming block 211 separately, leaving a space to take out the side insert 22. The second forming block 221 and the second connecting block 222 of the side insert 22 do not need to be disassembled and can be directly taken out from the inside of the shaping frame 1, which has the advantage of convenient disassembly and assembly.

[0098] As Figure 10 shown, in some embodiments, the connecting member 4 does not adopt a rectangular frame structure. Instead, a connecting plate is provided at one end of the middle insert 21 and the side insert 22 located outside the shaping frame 1, and they are connected and fixed by bolts. In this way, when disassembling, after removing the bolts, the middle insert 21 and the side insert 22 can be directly taken out;

[0099] As Figure 11 shown, when connecting the middle insert 21 and the side insert 22 with bolts, if disassembly is required, first pull out the middle insert 21, and then pull out the side insert 22.

[0100] As Figure 7 、 Figures 12 to 14 shown, the stop block 23 is spaced from the shaping frame 1, and a first curved surface 2301 and a second curved surface 2302 are provided on the surface of the stop block 23 facing the shaping frame 1; the first curved surface 2301 is concentric with the shaping frame 1, and the stop block 23 forms a first wall thickness. The second curved surface 2302 is eccentrically arranged. The second curved surface 2302 is connected to the first curved surface 2301, and the stop block 23 forms a second wall thickness. The second wall thickness is smaller than the first wall thickness; the expansion member 3 is slidably matched with the shaping frame 1. A concentric section 31 that fits the first curved surface 2301 and an expansion section 32 that fits the second curved surface 2302 are provided on the outer ring surface of the expansion member 3, and the inner ring surface of the expansion member 3 fits the shaping frame 1;

[0101] In the above structure, the expansion member 3 adopts a cam-type expansion structure, and its expansion section 32 has a larger diameter than the concentric section 31; correspondingly, the stop block 23 is provided with a first curved surface 2301 and a second curved surface 2302;

[0102] Among them, the first curved surface 2301 is concentrically arranged with the shaping frame 1 and is slidably matched with the concentric section 31 of the expansion member 3. The second curved surface 2302 is connected to the first curved surface 2301 and is matched with the expansion section 32 of the expansion member 3. The wall thickness of the stop block 23 at the position where the first curved surface 2301 is provided is greater than the wall thickness at the position where the second curved surface 2302 is provided. In this way, when the expansion member 3 rotates, the expansion section 32 rotates towards the first curved surface 2301, and a tightening force will be applied to the insert 2. Conversely, the tightening force will be released; then, after removing the expansion member 3, the insert 2 can be removed;

[0103] Specifically, a plurality of concentric segments 31 and a tightening segment 32 are provided on the tightening member 3, so as to fix all the inserts 2;

[0104] Specifically, the stop block 23 can be set as a special-shaped structure to increase the wall thickness at the second curved surface 2302, so that the wall thickness of this part is consistent with that of the first curved surface 2301 of the stop block 23, thereby increasing the structural stability.

[0105] Such as Figure 4 and Figure 20 As shown, the connecting plate 5 has a forming ring 51 and a positioning ring 52. The forming ring 51 abuts against the inner wall surface of the shaping 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 fits against the end surface of the shaping frame 1; a through hole 102 is provided on the shaping frame 1, and the conduit 6 and the positioning ring 52 are set as an integral structure. The conduit 6 penetrates through the positioning ring 52 and is inserted into the through hole 102;

[0106] As in the above structure, the connecting plate 5 has two parts, namely a forming ring 51 and a positioning ring 52. Among them, the forming ring 51 directly contacts the inner wall of the shaping frame 1 and at the same time abuts against the insert 2. This part serves as a part of the mold forming cavity to cooperate with the insert 2 to complete the forming of the tire;

[0107] Specifically, the inner diameter of the forming ring 51 is set to be as close as possible to the inner diameter of the shaping frame 1 to improve the convenience of the tire coming out after forming; the inner wall surface formed by a 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 as to cooperate with the insert 2 to assist in the forming of the tire;

[0108] Among them, the positioning ring 52 is used for connection and assembly. A conduit 6 is provided on the positioning ring 52, and a through hole 102 is provided on the shaping frame 1. In this way, during assembly, the connecting plate 5 can be connected to the shaping frame 1 by inserting the conduit 6 into the through hole 102; in this positioning structure, a plurality of conduits 6 are provided. After inserting into the through hole 102, the relative limit of all the single frames 11 can be realized, thereby ensuring the structural stability;

[0109] Among them, the conduit 6 is used for the flow of hot air to heat the shaping frame 1, thereby promoting the forming of the tire.

[0110] Such as Figure 5 、 Figure 6 and Figure 15 As shown, one end of the limiting strip 7 is connected to the forming ring 51, and the other end is inserted between two adjacent inserts 2;

[0111] As in the above structure, the limiting strip 7 is used for filling and limiting the insert 2 and forms a chamber for tire forming;

[0112] Meanwhile, the provision of the limit bars 7 can further strengthen the relative limitation among the connecting plate 5, the insert block 2 and the shaping frame 1, further ensuring the structural stability.

[0113] As Figure 8 , Figure 18 and Figure 19 shown, for the parts of the first forming block 211, the first connecting block 212, the second forming block 221 and the second connecting block 222 inserted into the mounting holes 101, their widths are all smaller than the width of the mounting holes 101. There are two limit bars 7 provided and they are inserted at the joints of three adjacent insert blocks 2.

[0114] As Figure 18 shown, which shows the interference structure of the insert block 2. When the width of the part of the first forming block 211 inserted into the mounting hole 101 is equal to the width of the mounting hole 101, there will be an interference problem with the adjacent first forming block 211 when the first forming block 211 is disassembled. The same is true for the second forming block 221.

[0115] As Figure 5 , Figure 15 , Figure 21 and Figure 22 shown, for the parts of the first forming block 211, the first connecting block 212, the second forming block 221 and the second connecting block 222 located in the mounting holes 101, if their widths are smaller than the width of the mounting holes 101, only two limit bars 7 are needed. After the limit bars 7 are removed, the first forming block 211 and the second forming block 221 will have lateral sliding space. In this way, the insert blocks 2 with limit bars 7 on both sides can be removed first, and then the other insert blocks 2 can be gradually removed from one side.

[0116] As Figure 20 shown, for the parts of the first forming block 211, the first connecting block 212, the second forming block 221 and the second connecting block 222 inserted into the mounting holes 101, their widths are all equal to the width of the mounting holes 101. The number of limit bars 7 corresponds to the number of insert blocks. Each limit bar 7 is inserted between two adjacent insert blocks 2.

[0117] For the above structure, for the parts of the first forming block 211, the first connecting block 212, the second forming block 221 and the second connecting block 222 located in the mounting holes 101, if the inner walls of the mounting holes 101 are abutted on both sides, the connection stability between the insert block 2 and the shaping frame 1 can be increased. However, when disassembling, there will be an interference problem between the first forming block 211 and the second forming block 221 of the adjacent insert blocks 2. At this time, limit bars 7 need to be provided on both sides of all the insert blocks 2 to avoid structural interference when the insert blocks 2 are removed.

[0118] As Figure 4 , Figure 5 and Figure 10As shown, limiting parts are provided on both the upper and lower sides of the insert block 2, and there are two expanding parts 3 corresponding to the limiting parts. Among them, one connecting ring 8 is provided on each of the two expanding parts 3; both ends of the connecting rod 9 are connected to one connecting ring 8 respectively; the pressing ring 10 is connected to the connecting ring 8 and is in sliding fit with the connecting plate 5;

[0119] In the above structure, in order to ensure the stability of the expansion of the insert block 2 by the expanding part 3, limiting parts, namely the stop blocks 23, are provided on both sides of the insert block 2. In this way, when fixing, a stable expansion force can be applied to the insert block 2 through the two expanding parts 3 to ensure the stable attitude of the insert block 2 and eliminate the small errors in the assembly of the insert block 2 and the shaping frame 1;

[0120] Specifically, a pressing ring 10 is further provided on the connecting ring 8. The pressing ring 10 is used to press the connecting plate 5 and is in sliding fit with the connecting plate 5. In this way, when the connecting ring 8 and the expanding part 3 rotate, the pressing ring 10 does not interfere with the connecting plate 5; at the same time, since the pressing ring 10 limits the connecting plate 5, the stability of the insertion of the conduit 6 into the through hole 102 can be ensured;

[0121] In some embodiments, the expanding part 3 on the upper side is directly connected to the connecting rod 9, and the pressing ring 10 is not provided on this side. Instead, the connecting plate 5 is driven by a driving part such as a cylinder to be able to be buckled to the shaping frame 1 or the connecting plate 5 is opened. In this way, it is convenient to take out after the tire is formed, improving the convenience of application;

[0122] In this embodiment, the conduit 6 is not provided, and the mold is placed in a heating furnace for tire forming to avoid wear between the conduit 6 and the through hole 102 caused by the continuous opening and closing of the mold.

[0123] As Figure 4 shown, the thickness of the expanding part 3 is greater than the thickness of the stop block 23. The connecting rod 9 includes a rod body 91 and a limiting plate 92. Among them, one end of the rod body 91 is connected to the surface of one connecting ring 8, and the surface of this connecting ring 8 is connected to one of the expanding parts 3; the limiting plate 92 is provided on the rod body 91. The other end of the rod body 91 penetrates through the other connecting ring 8, and the other expanding part 3 and the limiting plate 92 abut against the same surface of this connecting ring 8;

[0124] In the above structure, when setting the expanding part 3, its thickness should be larger than the thickness of the stop block 23 on the insert block 2. At the same time, a limiting plate 92 is provided on the connecting rod 9 for connecting the two connecting rings 8. In this way, when integrating, the surface of the connecting ring 8 can be prevented from contacting the stop block 23; when expanding and fixing, the connecting ring 8, the connecting rod 9 and the expanding part 3 rotate synchronously. The setting of this structure can reduce wear to ensure that the stop block 23 has enough groove depth to accommodate the expanding part 3 and ensure the stability of the structure application;

[0125] Specifically, one end of the rod body 91 of the connecting rod 9 can be integrally structured with one of the connecting rings 8, and the other end can be fixedly connected to the other connecting ring 8 through a nut. Alternatively, both ends can be connected to one connecting ring 8 each through a nut to achieve a detachable structure.

[0126] Specifically during operation, the connecting plate 5 serves as a positioning member and is connected to fixed equipment such as the base to achieve circumferential positioning of the shaping frame 1, thereby enabling the connecting ring 8, the connecting rod 9, and the tightening member 3 to rotate driven by the driving member.

[0127] As Figure 23 shown, multiple monomer frames 11 are integrally structured to form the shaping frame 1, and a protruding portion 12 is provided on the shaping frame 1; the driving member 13 is provided on the protruding portion 12, and the movable end of the driving member 13 is connected to the connecting rod 9.

[0128] In the above structure, in this insert assembly structure, the tightening member 3 is sleeved on the shaping frame 1 and is connected to the connecting rod 9 through the connecting ring 8. Thus, after the driving member 13 is provided on the protruding portion 12 of the monomer frame 11 and connected to the connecting rod 9, it can drive the tightening member 3 to move relative to the shaping frame 1 and the insert 2, so that the tightening member 3 can lock and fix the insert 2.

[0129] In some embodiments, the connecting plate 5 can be used as a positioning member and connected to the base, and a driving member is provided on the base to drive the tightening member 3 to rotate.

[0130] The application method of the insert assembly structure of the tire mold of the present invention includes the following steps:

[0131] S1. Assemble two side inserts 22 in the installation hole 101, then slide and separate the two side inserts 22, and make the stop block 23 correspond to the outer wall of the shaping frame 1.

[0132] S2. Insert the middle insert 21 between the two side inserts 22 to expand and tighten the two side inserts 22, and realize the connection between the insert 2 and the shaping frame 1.

[0133] S3. Through the connecting member 4, connect and fix one end of the middle insert 21 and the side insert 22 outside the shaping frame 1.

[0134] S4. Assemble the tightening member 3 on the shaping frame 1, and then drive the tightening member 3 to rotate with the driving member, so that the tightening section 32 rotates towards the first curved surface 2301, and further cooperate with the shaping frame 1 to expand and tighten and fix the insert 2.

[0135] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tire mold insert assembly structure, characterized in that: It includes a shaping frame (1), an insert block (2), a tightening member (3) and a connecting member (4). Among them, the shaping frame (1) is composed of a plurality of single frames (11) arranged in a circular array, and each single frame (11) is provided with a mounting hole (101); the insert block (2) is inserted into the mounting hole (101), one end of the insert block (2) abuts against the inner wall of the shaping frame (1), and the other end extends to the outside of the shaping frame (1) and is provided with a limiting portion; the tightening member (3) is located outside the shaping frame (1), the tightening member (3) is in a ring structure, and the tightening member (3) is used to apply a force away from the center of the shaping frame (1) to the limiting portion, so that the insert block (2) and the shaping frame (1) are relatively fixed; the insert block (2) includes an intermediate insert block (21), a side insert block (22) and a stop block (23). Among them, the intermediate insert block (21) and the side insert block (22) are inserted into the mounting hole (101), and one side insert block (22) is provided on each of the upper and lower sides of the intermediate insert block (21); one end of the intermediate insert block (21) and the side insert block (22) located inside the shaping frame (1) is a forming end and abuts against the inner wall of the shaping frame (1); one end of the intermediate insert block (21) and the side insert block (22) located outside the shaping frame (1) are connected to each other through the connecting member (4); the stop block (23) is the limiting portion, and the stop block (23) is arranged on the side insert block (22) and abuts against the tightening member (3); the stop block (23) is spaced from the shaping frame (1), and a first curved surface (2301) and a second curved surface (2302) are provided on a surface of the stop block (23) facing the shaping frame (1); the first curved surface (2301) is concentric with the shaping frame (1) and forms a first wall thickness of the stop block (23), the second curved surface (2302) is eccentrically arranged, the second curved surface (2302) is connected to the first curved surface (2301) and forms a second wall thickness of the stop block (23), and the second wall thickness is smaller than the first wall thickness; the tightening member (3) is in sliding fit with the shaping frame (1), a concentric section (31) fitting the first curved surface (2301) and a tightening section (32) fitting the second curved surface (2302) are provided on an outer ring surface of the tightening member (3), and an inner ring surface of the tightening member (3) fits the shaping frame (1).

2. The tire mold insert assembly structure according to claim 1, characterized in that: the connecting member (4) is in a rectangular frame structure, the intermediate insert block (21) includes a first forming block (211) and a first connecting block (212), and the side insert block (22) includes a second forming block (221) and a second connecting block (222). Among them, the first forming block (211) is inserted into the mounting hole (101) and abuts against the inner wall of the shaping frame (1); the first connecting block (212) is detachably connected to the first forming block (211) and extends to the outside of the shaping frame (1); The second forming block (221) is inserted into the mounting hole (101) and abuts against the inner wall of the shaping frame (1); The second connecting block (222) is detachably connected to the second forming block (221) and extends to the outside of the shaping frame (1), and the stop block (23) is arranged on the second connecting block (222); The connecting member (4) is connected to the first connecting block (212) and abuts against one end of the second connecting block (222) away from the second forming block (221).

3. The tire mold insert assembly structure according to claim 2, characterized in that: It further includes a connecting plate (5), a conduit (6) and a limiting strip (7), wherein, The connecting plate (5) has a forming ring (51) and a positioning ring (52), and the forming ring (51) abuts against the inner wall surface of the shaping 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 fits against the end surface of the shaping frame (1); A through hole (102) is formed in the shaping frame (1), and the conduit (6) and the positioning ring (52) are arranged as an integral structure. The conduit (6) penetrates through the positioning ring (52) and is inserted into the through hole (102); One end of the limiting strip (7) is connected to the forming ring (51), and the other end is inserted between two adjacent insert blocks (2).

4. The tire mold insert assembly structure according to claim 3, characterized in that: For the first forming block (211), the first connecting block (212), the second forming block (221) and the second connecting block (222), the widths of the parts inserted into the mounting hole (101) are all smaller than the width of the mounting hole (101). There are two limiting strips (7) and they are inserted at the joints of three adjacent insert blocks (2); or, For the first forming block (211), the first connecting block (212), the second forming block (221) and the second connecting block (222), the widths of the parts inserted into the mounting hole (101) are all equal to the width of the mounting hole (101). The number of the limiting strips (7) corresponds to the number of the insert blocks (2), and each limiting strip (7) is inserted between two adjacent insert blocks (2).

5. The tire mold insert assembly structure according to claim 3 or 4, characterized in that: It further includes a connecting ring (8), a connecting rod (9) and a pressing ring (10). Limiting parts are arranged on both the upper and lower sides of the insert block (2), and there are two expansion members (3) corresponding to the limiting parts, wherein, One connecting ring (8) is arranged on each of the two expansion members (3); Both ends of the connecting rod (9) are connected to one connecting ring (8) respectively; The pressing ring (10) is connected to the connecting ring (8) and is in sliding fit with the connecting plate (5).

6. The tire mold insert assembly structure according to claim 5, characterized in that: The thickness of the expansion member (3) is greater than the thickness of the stop block (23). The connecting rod (9) includes a rod body (91) and a limiting plate (92), wherein, One end of the rod body (91) is connected to the surface of one of the connecting rings (8), and the surface of this connecting ring (8) is connected to one of the expansion members (3); The limit plate (92) is arranged on the rod body (91), and the other end of the rod body (91) penetrates through another connecting ring (8), and the other expansion member (3) and the limit plate (92) abut against the same surface of the connecting ring (8).

7. The tire mold insert assembly structure according to claim 6, characterized in that: It further includes a driving member (13), and a plurality of the single-body frames (11) are arranged in an integral structure to form the shaping frame (1), and a protruding portion (12) is arranged on the shaping frame (1); The driving member (13) is arranged on the protruding portion (12), and the movable end of the driving member (13) is connected to the connecting rod (9).

8. A method for applying the tire mold insert assembly structure according to any one of claims 3 to 7, characterized in that, It includes the following steps: S1. Assemble two side inserts (22) in the mounting hole (101), then slide and separate the two side inserts (22), and make the stop block (23) correspond to the outer wall of the shaping frame (1); S2. Insert the intermediate insert (21) between the two side inserts (22) to expand the two side inserts (22) and realize the connection between the insert (2) and the shaping frame (1); S3. Connect and fix the end of the intermediate insert (21) and the side insert (22) outside the shaping frame (1) through the connecting member (4); S4. Assemble the expansion member (3) on the shaping frame (1), and then drive the expansion member (3) to rotate by the driving member, so that the expansion section (32) rotates towards the first curved surface (2301), and further cooperate with the shaping frame (1) to expand and fix the insert (2).

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