CN110978580B - Solid tire mold and demolding mechanism - Google Patents
Solid tire mold and demolding mechanism Download PDFInfo
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- CN110978580B CN110978580B CN202010122064.4A CN202010122064A CN110978580B CN 110978580 B CN110978580 B CN 110978580B CN 202010122064 A CN202010122064 A CN 202010122064A CN 110978580 B CN110978580 B CN 110978580B
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- die body
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- solid tire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/02—Solid tyres ; Moulds therefor
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- Moulds For Moulding Plastics Or The Like (AREA)
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Abstract
The invention discloses a solid tire mold and a demolding mechanism, which belong to the field of tire molds and comprise an upper mold body, a middle mold body, a lower mold body and an inner mold body, wherein a plurality of pins are arranged in an inner cavity formed by the upper mold body, the middle mold body, the lower mold body and the inner mold body; because the uncertain of tire position is at last die body or die body down when the mould die sinking, consequently design the improvement to it, specifically for having set up elastic connection structure between last die body and well die body, elastic connection structure can make last die body and well die body have the trend of keeping away from the certain distance each other, like this after having vulcanize the tire and having removed the compound die power, separate earlier with the elasticity that the die body relied on elastic connection structure through elastic connection structure messenger last die body to avoid the mould to stop on the mould.
Description
Technical Field
The invention relates to the field of tire molds, in particular to a solid tire mold and a demolding mechanism.
Background
The prior solid tire has the advantages of wear resistance, no air leakage and no worry about unstable tire pressure, is widely applied to special vehicles such as explosion-proof vehicles, cash trucks, engineering vehicles, forestry machinery and the like, and the solid tire cannot be applied to common vehicles due to too heavy dead weight, oil waste and the like. In order to reduce the weight of the solid tire, the lightweight tire is a better substitute product, and the lightweight tire is designed with lightening holes when the solid tire is vulcanized.
The lightweight tire is usually vulcanized by using two half dies, the tire is sometimes left on an upper die and sometimes left on a lower die when the die is opened, and the uncertainty of the tire position increases the tire taking time when the die is opened, so that the production efficiency is influenced, and the production cost is increased.
In view of the problems in the prior art, the invention designs and manufactures a solid tire mold and a demolding mechanism by combining years of design and use experience in the related field and assisting with over-strong professional knowledge, so as to overcome the defects.
Disclosure of Invention
For the problems in the prior art, the solid tire mold and the demolding mechanism provided by the invention ensure the stability of the tire position during mold opening and facilitate tire taking.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a solid tire mold comprises an upper mold body, a middle mold body, a lower mold body and an inner mold body, wherein a plurality of pins are arranged in an inner cavity formed by the upper mold body, the middle mold body, the lower mold body and the inner mold body.
And an elastic connecting structure is arranged between the upper die body and the middle die body, and the upper die body and the middle die body tend to be away from each other by a certain distance due to the elastic connecting structure.
Preferably, the elastic connection structure comprises an elastic body and a limit bolt, the upper die body and the middle die body are respectively arranged at two ends of the elastic body, the rod part of the limit bolt is connected with the upper die body or the middle die body, and the head part of the limit bolt is movably connected with the middle die body or the upper die body.
Preferably, when the upper die body is in contact with the middle die body, the head of the limiting bolt is in a non-contact state with the middle die body or the upper die body, and when the elastic body is bounced, the head of the limiting bolt is in a contact state with the middle die body or the upper die body.
Preferably, the elastic body is a spring or an elastic rubber.
Preferably, a threaded counter bore is formed in the lower matching surface of the upper die body, a step hole is formed in the upper matching surface of the middle die body, and the limiting bolt is communicated with the step hole and the threaded counter bore.
Preferably, the threaded counter bore comprises a threaded hole and an upper counter bore, the stepped hole comprises a lower counter bore and a through hole, the diameter of the lower counter bore is larger than that of the through hole, and the elastic body is arranged in the upper counter bore and the lower counter bore.
Preferably, the bottom of the stepped hole is provided with a movable groove, and the head of the limiting bolt can move in the movable groove.
Preferably, the middle die body is provided with a bolt mounting groove communicated with the stepped hole.
Preferably, a plurality of pins are arranged on the inner sides of the upper die body and the lower die body, and when the upper die body, the middle die body, the lower die body and the inner die body are buckled, the plurality of pins of the upper die body are abutted against the end parts of the plurality of pins of the lower die body.
Preferably, the lower matching surface of the upper die body is matched with the upper matching surface of the inner die body in a stepped slope manner, the lower matching surface of the inner die body is matched with the upper matching surface of the lower die body in a stepped slope manner, and the back surfaces of the upper die body and the lower die body are respectively provided with a workbench.
The demolding mechanism comprises a lead screw lifter, wherein the lead screw lifter is arranged on a workbench connected with a lower mold body, and a lead screw nut of the lead screw lifter is connected with the inner mold body.
The invention has the advantages that:
1. after the mold clamping force of the vulcanized tire is removed, the elastic force of the elastic body between the upper mold body and the middle mold body enables the upper mold body, the pin and the middle mold body to be opened firstly, so that the upper mold body is separated from the tire and part of the pin is separated from the tire, the upper mold body is continuously lifted, the head of the limiting bolt is contacted with the middle mold body and drives the middle mold body to lift together, the middle mold body is separated from the tire, then the pin is completely separated from the tire, the inner mold body is driven to move upwards by the aid of the demolding mechanism, the tire is separated from the lower mold body, and finally the tire is taken out from the inner mold body.
2. The tire stays on the inner mold body according to the set scheme, the stability of the tire position is guaranteed when the mold is opened, the tire taking is facilitated, the tire taking time can be saved by more than 60%, the total vulcanization time of the tire is saved by about 10%, and the production cost of tire enterprises is saved.
Drawings
FIG. 1 is a cross-sectional view of a solid tire mold closed.
Fig. 2 is a sectional view of a solid tire mold with mold clamping force removed.
Fig. 3 is a sectional view of the solid tire mold when the upper mold body is raised.
Fig. 4 is a sectional view of the inner mold body of the solid tire mold when it is lifted.
FIG. 5 is a schematic structural view of a bolt mounting groove of a solid tire mold.
In the figure: 1-upper die body, 2-middle die body, 3-lower die body, 4-inner die body, 5-limiting bolt, 6-elastomer, 7-movable groove, 8-workbench, 9-lead screw lifter and 10-lead screw nut.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 5, a solid tire mold comprises an upper mold body 1, a middle mold body 2, a lower mold body 3 and an inner mold body 4, wherein a plurality of pins are arranged in an inner cavity formed by the upper mold body 1, the middle mold body 2, the lower mold body 3 and the inner mold body 4, the pins are used for forming lightening holes when the solid tire is vulcanized, preferably, a plurality of pins are arranged on the inner sides of the upper mold body 1 and the lower mold body 3, and when the upper mold body 1, the middle mold body 2, the lower mold body 3 and the inner mold body 4 are buckled, the plurality of pins of the upper mold body 1 are abutted against the end parts of the plurality of pins of the lower mold body 3.
Because the tire position is uncertain at last die body or die body down when traditional mould die sinking, consequently, design improvement to it, specifically for having set up the elastic connection structure between last die body 1 and well die body 2, the elastic connection structure can make go up die body 1 and well die body 2 and have the trend of keeping away from the certain distance each other, after having vulcanized the tire and having removed the compound die power like this, make go up die body 1 and well die body 2 through the elastic connection structure and rely on elastic connection structure's elasticity earlier separately, well die body 2 is unchangeable with tire relative position, thereby avoid the tire to stop on last die body 1.
Specifically, the elastic connection structure comprises an elastic body 6 and a limit bolt 5, the elastic body 6 is preferably a spring or elastic rubber, more preferably a belleville spring, the two ends of the elastic body 6 are respectively an upper die body 1 and a middle die body 2, the rod part of the limit bolt 5 is connected with the upper die body 1, the head part of the limit bolt 5 is movably connected with the middle die body 2, specifically, when the upper die body 1 contacts with the middle die body 2, the head part of the limit bolt 5 is in a non-contact state with the middle die body 2, when the elastic body 6 is bounced off, the head part of the limit bolt 5 is in a contact state with the middle die body 2, so that the upper die body 1 can drive the middle die body 2 to lift when the elastic body 6 is further bounced off, of course, the rod part of the limit bolt 5 of the invention can also be connected with the middle die body 2, the corresponding head part of the limit bolt 5, the specific connection method is not described in detail herein.
In order to avoid the influence of the elastomer 6 on the mold during mold closing, the elastomer 6 is arranged in an elastic cavity formed by the upper mold body 1 and the middle mold body 2, specifically, a threaded counter bore is arranged on the lower matching surface of the upper mold body 1, a step hole is arranged on the upper matching surface of the middle mold body 2, and the limiting bolt 5 is communicated with the step hole and the threaded counter bore. The threaded counter bore comprises a threaded hole and an upper counter bore, the step hole comprises a lower counter bore and a through hole, the diameter of the lower counter bore is larger than that of the through hole, and the elastic body 6 is arranged in the upper counter bore and the lower counter bore.
The bottom of the stepped hole is provided with the movable groove 7, the head of the limiting bolt 5 can move in the movable groove 7, the space of the movable groove 7 can be properly enlarged for conveniently installing the limiting bolt 5, the middle die body 2 can be provided with an upper bolt installation groove communicated with the stepped hole, and the limiting bolt 5 enters the stepped hole through the bolt installation groove.
In order to ensure the matching precision, the lower matching surface of the upper die body 1 is matched with the step inclined surface of the upper matching surface of the inner die body 4, and the lower matching surface of the inner die body 4 is matched with the step inclined surface of the upper matching surface of the lower die body 3.
The invention also discloses a demoulding mechanism, which specifically comprises a screw rod lifter 9, wherein the screw rod lifter 9 is arranged on a workbench 8 connected with the lower mould body 3, and a screw rod nut 10 of the screw rod lifter 9 is connected with the inner mould body 4.
The method comprises the following specific working steps: after the mold clamping force of the vulcanized tire is removed, the elastic force of the elastic body 6 between the upper mold body 1 and the middle mold body 2 enables the upper mold body 1, the pin and the middle mold body 2 to be opened firstly, so that the upper mold body 1 is separated from the tire and part of the pin is separated from the tire, the upper mold body 1 is continuously lifted, the head of the limiting bolt 5 is contacted with the middle mold body 2 and drives the middle mold body 2 to lift together, the middle mold body 2 is separated from the tire, then the pin is completely separated from the tire, then the inner mold body 4 is driven to move upwards by the aid of a demolding mechanism, the tire is separated from the lower mold body 3, and finally the tire is taken out from the inner mold body 4.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.
Claims (9)
1. A solid tire mold is characterized in that: the die comprises an upper die body, a middle die body, a lower die body and an inner die body, wherein a plurality of pins are arranged in an inner cavity formed by the upper die body, the middle die body, the lower die body and the inner die body;
an elastic connecting structure is arranged between the upper die body and the middle die body, and the upper die body and the middle die body tend to be away from each other by a certain distance through the elastic connecting structure;
the elastic connecting structure comprises an elastic body and a limiting bolt;
the upper die body is provided with a lower die body matching surface, the lower die body matching surface is provided with a threaded counter bore, the threaded counter bore comprises a threaded hole and an upper counter bore, the upper die body matching surface is provided with a step hole, the step hole comprises a lower counter bore and a through hole, the limiting bolt is communicated with the step hole and the threaded counter bore, and the elastic body is arranged in the upper counter bore and the lower counter bore;
the middle mold body is arranged on the outer side surface of the vulcanized tire, the inner mold body is arranged on the inner side surface of the vulcanized tire, the lower fitting surface of the upper mold body is matched with the upper fitting surface of the inner mold body in a stepped inclined plane manner, the lower fitting surface of the inner mold body is matched with the upper fitting surface of the lower mold body in a stepped inclined plane manner, and the back surfaces of the upper mold body and the lower mold body are respectively provided with a workbench.
2. A solid tire mold as in claim 1, wherein: the elastic connection structure comprises an elastic body and a limiting bolt, the upper die body and the middle die body are respectively arranged at two ends of the elastic body, the rod part of the limiting bolt is connected with the upper die body or the middle die body, and the head part of the limiting bolt is movably connected with the middle die body or the upper die body.
3. A solid tire mold as in claim 2, wherein: when the upper die body is in contact with the middle die body, the head of the limiting bolt is in a non-contact state with the middle die body or the upper die body, and when the elastic body is bounced, the head of the limiting bolt is in a contact state with the middle die body or the upper die body.
4. A solid tire mold as in claim 2, wherein: the elastic body is a spring or elastic rubber.
5. A solid tire mold as in claim 1, wherein: the diameter of the sinking hole is larger than that of the through hole.
6. A solid tire mold as in claim 1, wherein: the bottom of the stepped hole is provided with a movable groove, and the head of the limiting bolt can move in the movable groove.
7. A solid tire mold as in claim 1, wherein: and the middle die body is provided with a bolt mounting groove communicated with the step hole.
8. A solid tire mold as in claim 1, wherein: the inner sides of the upper die body and the lower die body are respectively provided with a plurality of pins, and when the upper die body, the middle die body, the lower die body and the inner die body are buckled, the pins of the upper die body are abutted against the ends of the pins of the lower die body.
9. A demoulding mechanism is characterized in that: the solid tire mold comprises a lead screw lifter, wherein the lead screw lifter is arranged on a workbench connected with a lower mold body of the solid tire mold as claimed in any one of claims 1 to 8, and a lead screw nut of the lead screw lifter is connected with an inner mold body of the solid tire mold as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122064.4A CN110978580B (en) | 2020-02-27 | 2020-02-27 | Solid tire mold and demolding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122064.4A CN110978580B (en) | 2020-02-27 | 2020-02-27 | Solid tire mold and demolding mechanism |
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| Publication Number | Publication Date |
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| CN110978580A CN110978580A (en) | 2020-04-10 |
| CN110978580B true CN110978580B (en) | 2020-07-07 |
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| CN202010122064.4A Active CN110978580B (en) | 2020-02-27 | 2020-02-27 | Solid tire mold and demolding mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112659454A (en) * | 2020-12-03 | 2021-04-16 | 芜湖集拓实心胎有限公司 | Solid tyre forming machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019132912A1 (en) * | 2017-12-28 | 2019-07-04 | Compagnie Generale Des Etablissements Michelin | Mold for manufacturing a spoke for a non-pneumatic tire |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201530072U (en) * | 2009-08-24 | 2010-07-21 | 厦门升正机械有限公司 | Mold capable of producing solid tyres with complicated patterns |
| CN202344729U (en) * | 2011-12-05 | 2012-07-25 | 青岛德利特精密模具有限公司 | Solid tire mold capable of automatically stripping solid tire through upper mold spring |
| CN102407582B (en) * | 2011-12-05 | 2014-06-25 | 青岛德利特精密模具有限公司 | Die for removing tyre automatically by using springs on upper die of solid tyre |
| CN202607894U (en) * | 2012-05-08 | 2012-12-19 | 威海中威橡胶有限公司 | Die for solid tire |
| CN106217702B (en) * | 2016-08-31 | 2018-06-22 | 山东豪迈机械科技股份有限公司 | A kind of tyre adjustable die pulls open mold mechanism and tyre adjustable die |
| CN206598681U (en) * | 2017-01-22 | 2017-10-31 | 东莞市万富斯特轮胎有限公司 | A kind of structure reliably easily assembles solid tyre |
| JP6898828B2 (en) * | 2017-10-27 | 2021-07-07 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Tire vulcanization mold and tire manufacturing method |
| CN107972234A (en) * | 2017-11-27 | 2018-05-01 | 巨轮智能装备股份有限公司 | A kind of injecting molding die of solid tyre and its method for producing solid tyre |
| 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 |
| CN208452031U (en) * | 2018-06-19 | 2019-02-01 | 常州市羊氏模具有限公司 | Two petal of solid tyre tool |
| CN110722930A (en) * | 2019-09-03 | 2020-01-24 | 计文华 | Explosion-proof tire and preparation mold and preparation method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019132912A1 (en) * | 2017-12-28 | 2019-07-04 | Compagnie Generale Des Etablissements Michelin | Mold for manufacturing a spoke for a non-pneumatic tire |
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| CN110978580A (en) | 2020-04-10 |
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