CN112476986A - Production mold for hollow inflation-free tire - Google Patents
Production mold for hollow inflation-free tire Download PDFInfo
- Publication number
- CN112476986A CN112476986A CN202011212269.8A CN202011212269A CN112476986A CN 112476986 A CN112476986 A CN 112476986A CN 202011212269 A CN202011212269 A CN 202011212269A CN 112476986 A CN112476986 A CN 112476986A
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- China
- Prior art keywords
- boss
- hole
- tray body
- mold
- die
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Classifications
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2673—Moulds with exchangeable mould parts, e.g. cassette moulds
- B29C45/2675—Mounting of exchangeable mould inserts
-
- 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
Abstract
The invention discloses a production mold for a hollow inflation-free tire, which belongs to the field of tire molds and comprises an outer mold component and an inner disk component, wherein the inner disk component is positioned in the center of an inner cavity of the outer mold component during injection molding; interior dish subassembly includes disk body and lower disk body, go up the disk body and all be provided with the joint recess of mutually supporting around the lower disk body, every be provided with the boss in the joint recess, when moulding plastics, the boss joint in the joint recess. After the injection molding is completed, the middle boss can be conveniently taken out only by detaching the upper disc body and the lower disc body, so that the injection molding machine is convenient to detach and high in production efficiency.
Description
Technical Field
The invention relates to the field of tire molds, in particular to a production mold for a hollow inflation-free tire.
Background
When the hollow tire is produced by adopting the mold, the mechanical property of the produced tire is excellent by adopting an injection molding one-step forming mode, in order to realize the hollow inside of the tire, the boss needs to be installed inside the tire during injection molding, so that the boss is not injected during injection molding, and the boss is taken out after the injection molding is finished to obtain the hollow tire.
When the hollow inflation-free tire is produced, the existing injection mold cannot conveniently take out the inner convex mold, so that the production efficiency cannot be guaranteed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a production mold for a hollow inflation-free tire, which can be used for conveniently taking out an inner convex mold after injection molding of the hollow tire is completed and has high production efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a production mold for a hollow inflation-free tire, which comprises an outer mold component and an inner disk component, wherein the inner disk component is positioned in the center of an inner cavity of the outer mold component during injection molding; interior dish subassembly includes disk body and lower disk body, go up the disk body and all be provided with the joint recess of mutually supporting around the lower disk body, every be provided with the boss in the joint recess, when moulding plastics, the boss joint in the joint recess.
The invention has the preferable technical scheme that pin holes are formed in the clamping grooves of the lower disc body, each pin hole is internally provided with a guide pin column, and one end of each guide pin column is inserted into the corresponding pin hole; one end of the boss is provided with a guide through hole, and the other end of the guide pin is inserted into the guide through hole.
The invention has the preferable technical scheme that the clamping groove is provided with a limiting groove along the edge position of the length direction, the boss is provided with a limiting table, and the limiting table is abutted against the limiting groove.
The invention has the preferable technical scheme that the limiting groove is provided with an edge cutting groove at the position close to the side wall of the lower tray body or the upper tray body.
The invention has the preferable technical scheme that the part of the boss, which is positioned outside the clamping groove, is provided with a guide inclined plane, and the diameter of the boss is smaller along the length direction of the boss and is farther away from the clamping groove.
The invention has the preferable technical scheme that a key groove is formed in the upper tray body, a mold locking core key matched with the key groove is arranged in the key groove, an ejector rod is arranged at one end of the mold locking core key, the ejector rod is abutted against the lower tray body during injection molding, and the mold locking core key is in transition fit with the key groove.
The invention has the preferable technical scheme that a compression spring is arranged on the upper side surface of the upper disc body, one end of the compression spring is abutted against the upper disc body, and the other end of the compression spring is fixedly connected with the outer die assembly so as to provide downward acting force for the inner disc assembly.
The invention has the preferable technical scheme that the upper outer edge of the upper tray body and the lower outer edge of the lower tray body are both provided with trimming guide grooves, the inner tray body is also provided with an exhaust through hole, and the exhaust through hole penetrates through the upper tray body and the lower tray body; the upper side surface of the upper disc body is provided with a flow guide channel, and the flow guide channel is communicated with the trimming guide groove and the exhaust through hole.
The invention has the preferable technical scheme that the outer die component sequentially comprises an upper die plate, a middle die plate and a lower die plate from top to bottom; a die disc is arranged on the lower template, a positioning hole is formed in the die disc, and a positioning table matched with the positioning hole is arranged on the lower side surface of the lower disc body; the middle template is provided with a die through hole matched with the die disc, and the inner disc assembly is positioned in the die through hole.
The invention has the beneficial effects that:
the invention provides a production mold for a hollow inflation-free tire, which comprises an outer mold component and an inner disk component, wherein the inner disk component is positioned in the center of an inner cavity of the outer mold component during injection molding; interior dish subassembly includes disk body and lower disk body, go up the disk body and all be provided with the joint recess of mutually supporting around the lower disk body, every be provided with the boss in the joint recess, when moulding plastics, the boss joint in the joint recess. After the injection molding is completed, the middle boss can be conveniently taken out only by detaching the upper disc body and the lower disc body, so that the injection molding machine is convenient to detach and high in production efficiency.
Drawings
FIG. 1 is a schematic diagram of an exploded structure of a production mold for a hollow non-pneumatic tire provided in an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1 provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of the overall structure of a production mold for a hollow non-pneumatic tire according to an embodiment of the present invention;
in the figure:
1. an outer mold assembly; 2. an inner disc assembly; 11. mounting a template; 12. a middle template; 13. a lower template; 111. a compression spring; 121. a through hole of the mold; 131. a mold plate; 132. positioning holes; 21. a positioning table; 22. an upper tray body; 23. a boss; 24. a lower tray body; 25. locking the mold core key; 26. a guide pin; 221. an exhaust through hole; 222. a flow guide channel; 223. trimming and guiding the groove; 231. a limiting table; 232. a guide through hole; 241. clamping the groove; 242. a limiting groove; 243. cutting an edge groove; 244. a pin hole; 251. and ejecting the rod.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1-3, the present embodiment provides a production mold for a hollow non-pneumatic tire, which comprises an outer mold component 1 and an inner disk component 2, wherein during injection molding, the inner disk component 2 is located in the center of an inner cavity of the outer mold component 1; interior disk assembly 2 includes upper disc body 22 and lower disc body 24, upper disc body 22 and lower disc body 24 all is provided with the joint recess 241 of mutually supporting all around, every be provided with boss 23 in the joint recess 241, when moulding plastics, boss 23 joint in the joint recess 241. When in injection molding, the inner disc assembly 2 is placed in the outer die assembly 1, then injection molding is carried out, rubber is wrapped on the outer side of the inner disc assembly 2, and the boss 23 is used for forming a hollow hole in the tire. Take out inner disc subassembly 2 and tire together after the completion of moulding plastics, then strike and make upper disc body 22 and lower disc body 24 not hard up, it is fixed through any connecting piece not between upper disc body 22 and the lower disc body 24, consequently only need strike and just can directly take off after becoming flexible, after upper disc body 22 and lower disc body 24 all take off, boss 23 still is located the tire, then only need adopt the air gun just can easily blow off boss 23, thereby accomplish the drawing of patterns of inner disc subassembly 2, it is high-efficient convenient to produce.
In order to accurately mount the boss 23, preferably, a pin hole 244 is provided in the clamping groove 241 of the lower tray body 24, a guide pin 26 is provided in each pin hole 244, and one end of each guide pin 26 is inserted into the pin hole 244; one end of the boss 23 is provided with a guide through hole 232, and the other end of the guide pin 26 is inserted into the guide through hole 232. When the inner disc assembly 2 is assembled, the lower disc body 24 is placed, the guide pin 26 is placed in each pin hole 244, and then the boss 23 is inserted into the guide pin 26, so that when the upper disc body 22 is combined with the lower disc body 24, the boss 23 cannot be loosened, and the mounting is convenient. And after the boss 23 is limited by the guide pin 26, the boss 23 can not move along the length direction, so that the boss 23 can not be extruded to stretch during injection molding, and the injection molding quality of the tire is ensured.
Preferably, the clamping groove 241 is provided with a limiting groove 242 along the edge of the length direction, the boss 23 is provided with a limiting table 231, and the limiting table 231 abuts against the limiting groove 242. The boss 23 can be further limited, so that the position of the boss 23 is stable after installation, and meanwhile, the upper tray body 22 and the lower tray body 24 can be well clamped on the boss 23. Further, the limiting groove 242 is provided with a trimming groove 243 near the sidewall of the lower tray body 24 or the upper tray body 22. The overflowed rim charge can be well cut off, and the quality of the product edge is high.
Preferably, the part of the boss 23 located outside the clamping groove 241 is provided with a guide inclined plane, and along the length direction of the boss 23, the farther away from the clamping groove 241, the smaller the diameter of the boss 23. So that the boss 23 can be easily detached.
In order to more conveniently disassemble the inner disc assembly 2, a key groove is formed in the upper disc body 22, a mold locking core key 25 matched with the key groove is arranged in the key groove, an ejector rod 251 is arranged at one end of the mold locking core key 25, the ejector rod 251 is abutted to the lower disc body 24 during injection molding, and the mold locking core key 25 is in transition fit with the key groove. After injection molding is complete, the inner disc assembly 2 can be disassembled by striking the lock core key 25 to eject the lower disc 24 and then striking the upper disc 22 in the reverse direction.
Preferably, a compression spring 111 is arranged on the upper side surface of the upper tray body 22, one end of the compression spring 111 abuts against the upper tray body 22, and the other end of the compression spring 111 is fixedly connected with the outer mold assembly 1 so as to provide a downward acting force for the inner tray assembly 2. The upper tray 22 is pressed against by the compression spring 111, so that the upper tray 22 can be tightly attached to the lower tray 24, and the inner tray assembly 2 can be pushed downward after the injection molding is completed, so that the upper tray is not adhered to the upper mold plate 11.
Preferably, the upper outer edge of the upper tray 22 and the lower outer edge of the lower tray 24 are both provided with trimming guide grooves 223, the inner tray assembly 2 is further provided with an exhaust through hole 221, and the exhaust through hole 221 penetrates through the upper tray 22 and the lower tray 24; the upper side surface of the upper tray body 22 is provided with a flow guide channel 222, and the flow guide channel 222 is communicated with the trimming guide groove 223 and the exhaust through hole 221. The vacuum pumping can be conveniently carried out, so that the material can flow uniformly during injection molding.
Preferably, the outer die assembly 1 sequentially comprises an upper die plate 11, a middle die plate 12 and a lower die plate 13 from top to bottom; a die disc 131 is arranged on the lower template 13, a positioning hole 132 is arranged on the die disc 131, and a positioning table 21 matched with the positioning hole 132 is arranged on the lower side surface of the lower disc body 24; the middle template 12 is provided with a die through hole 121 matched with the die disc 131, and the inner disc assembly 2 is positioned in the die through hole 121. In production, the inner disc assembly 2 is placed on the lower mold plate 13, and then the middle mold plate 12 and the lower mold plate 13 are closed downward. After the injection molding is completed, the product is clamped in the middle template 12, the upper template 11 and the lower template 13 are separated from the middle template 12, then a support piece is placed on the lower template 13, then the middle template 12 is moved downwards, so that the support piece ejects the product, and then the inner disc assembly 2 is removed.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (9)
1. A production mould for a hollow inflation-free tire is characterized in that:
the injection molding die comprises an outer die component (1) and an inner disc component (2), wherein the inner disc component (2) is positioned in the center of an inner cavity of the outer die component (1) during injection molding;
interior disk subassembly (2) are including last disk body (22) and lower disk body (24), go up disk body (22) and lower disk body (24) all are provided with joint recess (241) of mutually supporting all around, every be provided with boss (23) in joint recess (241), when moulding plastics, boss (23) joint in joint recess (241).
2. The production mold for a hollow non-pneumatic tire as set forth in claim 1, wherein:
a pin hole (244) is formed in the clamping groove (241) of the lower tray body (24), a guide pin (26) is arranged in each pin hole (244), and one end of each guide pin (26) is inserted into each pin hole (244);
one end of the boss (23) is provided with a guide through hole (232), and the other end of the guide pin column (26) is inserted into the guide through hole (232).
3. The production mold for a hollow non-pneumatic tire as set forth in claim 1, wherein:
the clamping groove (241) is provided with a limiting groove (242) along the edge position of the length direction, a limiting table (231) is arranged on the boss (23), and the limiting table (231) is abutted to the limiting groove (242).
4. A production mold for a hollow non-pneumatic tire as set forth in claim 3, wherein:
the limiting groove (242) is provided with a trimming groove (243) close to the side wall of the lower tray body (24) or the upper tray body (22).
5. The production mold for a hollow non-pneumatic tire as set forth in claim 1, wherein:
the boss (23) is located the outside part of joint recess (241) is provided with the direction inclined plane, follows the length direction of boss (23), keeps away from joint recess (241) more boss (23) diameter is littleer.
6. The production mold for a hollow non-pneumatic tire as set forth in claim 1, wherein:
the upper tray body (22) is provided with a key groove, a mold locking core key (25) matched with the key groove is arranged in the key groove, one end of the mold locking core key (25) is provided with an ejector rod (251), the ejector rod (251) is abutted to the lower tray body (24) during injection molding, and the mold locking core key (25) is in transition fit with the key groove.
7. The production mold for a hollow non-pneumatic tire as set forth in claim 1, wherein:
the upper side surface of the upper tray body (22) is provided with a compression spring (111), one end of the compression spring (111) is abutted against the upper tray body (22), and the other end of the compression spring (111) is fixedly connected with the outer mold component (1) so as to provide downward acting force for the inner tray component (2).
8. The production mold for a hollow non-pneumatic tire as set forth in claim 1, wherein:
the upper outer edge of the upper tray body (22) and the lower outer edge of the lower tray body (24) are both provided with trimming guide grooves (223), the inner tray body (2) is also provided with an exhaust through hole (221), and the exhaust through hole (221) penetrates through the upper tray body (22) and the lower tray body (24); the upper side surface of the upper tray body (22) is provided with a flow guide channel (222), and the flow guide channel (222) is communicated with the trimming guide groove (223) and the exhaust through hole (221).
9. The production mold for a hollow non-pneumatic tire as set forth in claim 1, wherein:
the outer die assembly (1) sequentially comprises an upper template (11), a middle template (12) and a lower template (13) from top to bottom;
a die disc (131) is arranged on the lower template (13), a positioning hole (132) is formed in the die disc (131), and a positioning table (21) matched with the positioning hole (132) is arranged on the lower side surface of the lower disc body (24);
the middle template (12) is provided with a die through hole (121) matched with the die disc (131), and the inner disc assembly (2) is located in the die through hole (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011212269.8A CN112476986B (en) | 2020-11-03 | 2020-11-03 | Production mold for hollow inflation-free tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011212269.8A CN112476986B (en) | 2020-11-03 | 2020-11-03 | Production mold for hollow inflation-free tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112476986A true CN112476986A (en) | 2021-03-12 |
| CN112476986B CN112476986B (en) | 2022-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011212269.8A Active CN112476986B (en) | 2020-11-03 | 2020-11-03 | Production mold for hollow inflation-free tire |
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| CN (1) | CN112476986B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB252015A (en) * | 1925-05-09 | 1926-10-28 | Aldo Valentini | Improvements in or relating to air core tyres |
| JPH05200753A (en) * | 1992-01-29 | 1993-08-10 | Sumitomo Rubber Ind Ltd | Vulcanizing mold for solid tire for industrial vehicle |
| CN1715041A (en) * | 2004-03-18 | 2006-01-04 | 卡莱尔印唐伊布勒公司 | Non-pneumatic tire and method of making same |
| CN108162446A (en) * | 2017-12-29 | 2018-06-15 | 天津市宝永啟臣橡胶科技有限公司 | Solid tyre mold and tyre production technology |
| CN110509722A (en) * | 2019-09-27 | 2019-11-29 | 安徽世界村智能装备有限公司 | A kind of one-pass molding exempts to inflate hollow tire and makes the set of molds of the tire and the production method of the tire |
| CN110625892A (en) * | 2019-09-03 | 2019-12-31 | 计文华 | Tire preparation mold, tire prepared by mold and preparation method of tire |
| CN111731041A (en) * | 2020-07-30 | 2020-10-02 | 马鞍山华之智信息科技有限公司 | Cavity supporting structure of inflation-free tire and processing method thereof |
-
2020
- 2020-11-03 CN CN202011212269.8A patent/CN112476986B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB252015A (en) * | 1925-05-09 | 1926-10-28 | Aldo Valentini | Improvements in or relating to air core tyres |
| JPH05200753A (en) * | 1992-01-29 | 1993-08-10 | Sumitomo Rubber Ind Ltd | Vulcanizing mold for solid tire for industrial vehicle |
| CN1715041A (en) * | 2004-03-18 | 2006-01-04 | 卡莱尔印唐伊布勒公司 | Non-pneumatic tire and method of making same |
| CN108162446A (en) * | 2017-12-29 | 2018-06-15 | 天津市宝永啟臣橡胶科技有限公司 | Solid tyre mold and tyre production technology |
| CN110625892A (en) * | 2019-09-03 | 2019-12-31 | 计文华 | Tire preparation mold, tire prepared by mold and preparation method of tire |
| CN110509722A (en) * | 2019-09-27 | 2019-11-29 | 安徽世界村智能装备有限公司 | A kind of one-pass molding exempts to inflate hollow tire and makes the set of molds of the tire and the production method of the tire |
| CN111731041A (en) * | 2020-07-30 | 2020-10-02 | 马鞍山华之智信息科技有限公司 | Cavity supporting structure of inflation-free tire and processing method thereof |
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| Publication number | Publication date |
|---|---|
| CN112476986B (en) | 2022-04-22 |
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