CN114474803A - Tire preparation process - Google Patents
Tire preparation process Download PDFInfo
- Publication number
- CN114474803A CN114474803A CN202111510472.8A CN202111510472A CN114474803A CN 114474803 A CN114474803 A CN 114474803A CN 202111510472 A CN202111510472 A CN 202111510472A CN 114474803 A CN114474803 A CN 114474803A
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- CN
- China
- Prior art keywords
- rubber
- sleeve
- tire
- sealing piston
- conical surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 239000006229 carbon black Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000003607 modifier Substances 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 39
- 239000007924 injection Substances 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 38
- 238000007789 sealing Methods 0.000 claims description 28
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- 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
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0678—Injection moulding specially adapted for tyres or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a preparation process of a tire, which comprises the following steps: s10, crushing the rubber raw material, and removing rubber particles which do not meet the requirement of the particle size after crushing; s20, melting the rubber particles meeting the requirements obtained in the step S10 in a high-temperature furnace to form molten rubber; s30, adding carbon black and a modifier into the molten rubber liquid prepared in the step S20, and uniformly stirring to form a modified molten rubber liquid; s40, placing the modified rubber melt formed in the step S30 into a vacuum device; s50, injecting the modified rubber melt processed in the step S40 into a tire mold; and S60, vulcanizing the tire formed in the step S50, and finally forming a tire product. The invention completes the production process of the tire through the steps of crushing, screening, melting, modifying, removing bubbles, injecting, vulcanizing and the like of the rubber raw material, can enhance the strength, the wear resistance, the ductility and the like of the tire, is suitable for mass production, and has high efficiency.
Description
Technical Field
The invention relates to the technical field of tire production, in particular to a preparation process of a tire.
Background
The tire is a common article in the life, at present, in China, various vehicles are widely produced along with the improvement of the living standard of people, and the tire is used as an important component of a plurality of vehicles, so that the production and consumption of the tire are very large.
The existing tire production process is complex in operation, wastes manpower and material resources, and is not suitable for the production requirements of high-performance, multi-variety, small-batch and customized tires.
Disclosure of Invention
The invention aims to provide a preparation process of a tire to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme: a process for preparing a tire, comprising:
s10, crushing the rubber raw material, and removing rubber particles which do not meet the requirement of the particle size after crushing;
s20, melting the rubber particles meeting the requirements obtained in the step S10 in a high-temperature furnace to form molten rubber;
s30, adding carbon black and a modifier into the molten rubber liquid prepared in the step S20, and uniformly stirring to form a modified molten rubber liquid;
s40, placing the modified rubber melt formed in the step S30 in a vacuum device, and removing air dissolved in the modified rubber melt;
s50, injecting the modified rubber melt processed in the step S40 into a tire mold, and cooling the tire mold for a preset time in a vacuum state;
and S60, vulcanizing the tire formed in the step S50, and finally forming a tire product.
As a modification of the present invention, in step S10, rubber particles having a particle size of more than 5 to 10mm are removed.
As a modification of the present invention, in step S20, the furnace temperature of the high temperature furnace is always maintained at 400 to 600 ℃.
As a modification of the present invention, in step S30, the content of carbon black is 5% of the rubber melt, and the content of the modifier is 8% of the rubber melt.
As a modification of the present invention, in step S50, a modified rubber melt is injected into a tire mold by a melt injection device, the melt injection device including:
the sliding seat is arranged on the workbench in a sliding manner, and a tire mold is fixedly arranged on one side of the workbench;
the sliding seat is in transmission connection with the sliding motor through a lead screw;
an injection cavity is fixedly arranged above the sliding seat and is of a tubular structure;
a fixed sealing piston and a transmission sealing piston are respectively arranged in the injection cavity, the fixed sealing piston is fixedly connected with the inner wall of the injection cavity, and one side of the transmission sealing piston is connected with a screw rod;
a cavity between the fixed sealing piston and the transmission sealing piston is formed into a combustion chamber, and the side wall of the combustion chamber is respectively provided with an air inlet control valve, an air outlet control valve and an igniter;
one end of the transmission sealing piston, which is connected with the transmission sealing piston, is also provided with a linkage shaft end, and the linkage shaft end is fixedly connected with a first gear through a long key;
the first gear is in meshing transmission connection with the second gear, and a transmission shaft sleeved on the second gear is in transmission connection with the rotating motor through the clasping mechanism;
the clasping mechanism comprises:
the inner side surface of the locking conical surface sleeve is fixedly connected with the transmission shaft, and the outer side surface of the locking conical surface sleeve is conical;
the clutch contact sleeve is sleeved on the outer side of the locking conical surface sleeve, a first conical surface and a second conical surface are respectively arranged on the inner wall of the clutch contact sleeve, and the first conical surface is in contact fit with the outer side surface of the locking conical surface sleeve;
the fixed taper sleeve is positioned inside the clutch contact sleeve, the outer side surface of the fixed taper sleeve is in contact fit with the second taper surface, and the fixed taper sleeve is fixedly connected with an output shaft of the rotating motor;
the outer side of the clutch contact sleeve is rotatably connected with a driving lever linkage frame through a fulcrum shaft, and one end of the driving lever linkage frame is hinged with the outer wall of the injection cavity through a connecting block;
the other end of the outer side of the clutch contact sleeve is connected with a telescopic cylinder through a hinge pin;
the injection cavity is also communicated with a feeding interface, and the feeding interface is positioned on the outer side of the screw rod;
the end of the injection chamber is fixedly provided with an injection nozzle.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an implantation chamber according to the present invention;
FIG. 3 is a front view of a clasping mechanism of the present invention;
figure 4 is a side view of the clasping mechanism of the present invention.
The components in the figure are:
1. the device comprises a sliding seat, 11, a workbench, 12, a tire mold, 13, a sliding motor, 14, a lead screw, 2, an injection cavity, 21, a fixed sealing piston, 22, a transmission sealing piston, 23, a combustion chamber, 24, an air inlet control valve, 25, an air outlet control valve, 26, an igniter, 27, a feeding port, 28, an injection nozzle, 3, a screw rod, 31, a linkage shaft end, 32, a long key, 4, a first gear, 41, a second gear, 42, a transmission shaft, 43, a rotating motor, 5, a holding mechanism, 51, a locking conical surface sleeve, 52, a clutch contact sleeve, 53, a first conical surface, 54, a second conical surface, 55, a fixed conical sleeve, 6, a fulcrum shaft, 61, a deflector rod linkage frame, 62, a connecting block, 63, a hinge pin, 64 and a telescopic cylinder.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1, a process for preparing a tire includes:
s10, crushing the rubber raw material, and removing rubber particles which do not meet the requirement of the particle size after crushing;
s20, melting the rubber particles meeting the requirements obtained in the step S10 in a high-temperature furnace to form molten rubber;
s30, adding carbon black and a modifier into the molten rubber liquid prepared in the step S20, and uniformly stirring to form a modified molten rubber liquid;
s40, placing the modified rubber melt formed in the step S30 in a vacuum device, and removing air dissolved in the modified rubber melt;
s50, injecting the modified rubber melt processed in the step S40 into a tire mold, and cooling the tire mold for a preset time in a vacuum state;
and S60, vulcanizing the tire formed in the step S50, and finally forming a tire product.
As a modification of the present invention, in step S10, rubber particles having a particle size of more than 5 to 10mm are removed.
As a modification of the present invention, in step S20, the furnace temperature of the high temperature furnace is always maintained at 400 to 600 ℃.
In step S30, the content of carbon black is 5% and the content of the modifier is 8% of the molten rubber.
The working principle and the beneficial effects of the technical scheme are as follows: the invention completes the production process of the tire through the steps of crushing, screening, melting, modifying, removing bubbles, injecting, vulcanizing and the like of the rubber raw material, can enhance the strength, the wear resistance, the ductility and the like of the tire, is suitable for mass production, and has high efficiency.
As an embodiment of the present invention, the modified rubber melt is injected into the tire mold 12 in step S50 by a melt injection device including:
the sliding seat 1 is arranged on a workbench 11 in a sliding mode, and a tire mold 12 is fixedly arranged on one side of the workbench 11;
the sliding base 1 is in transmission connection with the sliding motor 13 through a lead screw 14;
an injection cavity 2 is fixedly arranged above the sliding seat 1, and the injection cavity 2 is of a tubular structure;
a fixed sealing piston 21 and a transmission sealing piston 22 are respectively arranged in the injection cavity 2, the fixed sealing piston 21 is fixedly connected with the inner wall of the injection cavity 2, and one side of the transmission sealing piston 22 is connected with a screw rod 3;
a cavity between the fixed sealing piston 21 and the transmission sealing piston 22 is formed into a combustion chamber 23, and the side wall of the combustion chamber 23 is respectively provided with an air inlet control valve 24, an air outlet control valve 25 and an igniter 26;
a linkage shaft end 31 is further arranged at one end of the transmission sealing piston 22, which is connected with the transmission sealing piston 22, and the linkage shaft end 31 is fixedly connected with a first gear 4 through a long key 32;
the first gear 4 is in meshing transmission connection with the second gear 41, and a transmission shaft 42 sleeved on the second gear 41 is in transmission connection with a rotating motor 43 through a clasping mechanism 5;
the clasping mechanism 5 comprises:
the inner side surface of the locking conical surface sleeve 51 is fixedly connected with the transmission shaft 42, and the outer side surface of the locking conical surface sleeve is conical;
the clutch contact sleeve 52 is sleeved outside the locking conical surface sleeve 51, the inner wall of the clutch contact sleeve 52 is respectively provided with a first conical surface 53 and a second conical surface 54, and the first conical surface 53 is in contact fit with the outer side surface of the locking conical surface sleeve 51;
a fixed taper sleeve 55 located inside the clutch contact sleeve 52, wherein the outer side surface of the fixed taper sleeve 55 is in contact fit with the second taper surface 54, and the fixed taper sleeve 55 is fixedly connected with the output shaft of the rotating electrical machine 43;
the outer side of the clutch contact sleeve 52 is rotatably connected with a driving lever linkage frame 61 through a fulcrum 6, and one end of the driving lever linkage frame 61 is hinged with the outer wall of the injection cavity 2 through a connecting block 62;
the other end of the outer side of the clutch contact sleeve 52 is connected with a telescopic cylinder 64 through a hinge pin 63;
the injection cavity 2 is also communicated with a feeding interface 27, and the feeding interface 27 is positioned at the outer side of the screw rod 3;
an injection nozzle 28 is fixedly arranged at the end hi of the injection chamber 2.
The working principle and the beneficial effects of the technical scheme are as follows:
since the modified rubber melt contains fine rubber particles, carbon black, a modifier, and the like, clogging may occur during injection into a tire mold, and after the first injection, the injection nozzle 28 may generate back pressure to affect the next injection.
For this purpose, a melt injection device of the impact type is provided.
The basic working process comprises the following steps: the slide motor 13 drives the slide base 1 to approach the tire mold 12 through the lead screw 14, and the injection of the modified rubber melt is started for molding after the injection nozzle 28 is inserted into the tire mold 12. The modified rubber melt is fed into the injection cavity 2 through the feeding port 27, and is injected into the tire mold 12 by the screw 3 under the driving of the rotating motor 43 to complete the mold pressing. When the injection cavity 2 is blocked or the injection nozzle 28 generates back pressure, combustible gas is introduced into the combustion chamber 23, and then the igniter 26 ignites and burns, so that impact is generated on the transmission sealing piston 22, and the transmission connection with the first gear 4 is not influenced when the transmission sealing piston 22 moves under the impact of the combustion chamber 23 because the linkage shaft end 31 is connected with the first gear 4 through the long key 32. And the screw 3 is moved leftward by the impact, thereby solving the problem of clogging or back pressure.
When the combustion chamber 22 is burnt to generate impact, the first gear 4 and the second gear 41 are not suitable for generating transmission rotation, otherwise the screw 3 is broken under the double action of torque force and impact force. For this purpose, a clasping mechanism 5 is provided between the rotary electric machine 43 and the second gear 41.
The working process of the holding and superposition prevention transmission is as follows:
the telescopic cylinder 64 is connected with high-pressure air, the cylinder extends out, the driving lever linkage frame 61 is driven by the hinge pin 63 to swing towards the direction close to the rotating motor 43, the driving lever linkage frame 61 drives the clutch contact sleeve 52 to move synchronously, and at the moment, the clutch contact sleeve 52 is separated from the locking conical surface sleeve 51 and is tightly held with the fixed conical sleeve 55. At this time, there is no transmission connection between the rotating electrical machine 43 and the second gear 41.
When the impact generated by the combustion of the combustion chamber 22 is finished and the screw 3 needs to be driven to rotate, the telescopic cylinder 64 retracts, so that the clutch contact sleeve 52 is in contact fit with the locking conical sleeve 51, and at the moment, the clutch contact sleeve 52 is in contact fit with the locking conical sleeve 51. The three fixed taper sleeves 55 are synchronously contacted and linked.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. A process for preparing a tyre, comprising:
s10, crushing the rubber raw material, and removing rubber particles which do not meet the requirement of the particle size after crushing;
s20, melting the rubber particles meeting the requirements obtained in the step S10 in a high-temperature furnace to form molten rubber;
s30, adding carbon black and a modifier into the molten rubber liquid prepared in the step S20, and uniformly stirring to form a modified molten rubber liquid;
s40, placing the modified rubber melt formed in the step S30 in a vacuum device, and removing air dissolved in the modified rubber melt;
s50, injecting the modified rubber melt processed in the step S40 into a tire mold, and cooling the tire mold for a preset time in a vacuum state;
and S60, vulcanizing the tire formed in the step S50, and finally forming a tire product.
2. A process for the preparation of a tyre as claimed in claim 1, wherein: in step S10, rubber particles with a particle size of more than 5-10mm are removed.
3. A process for the preparation of a tyre as claimed in claim 1, wherein: in step S20, the furnace temperature of the high temperature furnace is always maintained at 400 ℃ to 600 ℃.
4. A process for the preparation of a tyre as claimed in claim 1, wherein: in step S30, the content of carbon black is 5% of the rubber melt and the content of the modifier is 8% of the rubber melt.
5. A process for the preparation of a tyre as claimed in claim 1, wherein: injecting a modified rubber melt into a tire mold (12) in step S50 by a melt injection device comprising:
the sliding seat (1) is arranged on the workbench (11) in a sliding mode, and a tire mold (12) is fixedly arranged on one side of the workbench (11);
the sliding base (1) is in transmission connection with the sliding motor (13) through a lead screw (14);
an injection cavity (2) is fixedly arranged above the sliding seat (1), and the injection cavity (2) is of a tubular structure;
a fixed sealing piston (21) and a transmission sealing piston (22) are respectively arranged in the injection cavity (2), the fixed sealing piston (21) is fixedly connected with the inner wall of the injection cavity (2), and one side of the transmission sealing piston (22) is connected with a screw (3);
a cavity between the fixed sealing piston (21) and the transmission sealing piston (22) is formed into a combustion chamber (23), and the side wall of the combustion chamber (23) is respectively provided with an air inlet control valve (24), an air outlet control valve (25) and an igniter (26);
one end of the transmission sealing piston (22) connected with the transmission sealing piston (22) is also provided with a linkage shaft end (31), and the linkage shaft end (31) is fixedly connected with a first gear (4) through a long key (32);
the first gear (4) is in meshed transmission connection with a second gear (41), and a transmission shaft (42) sleeved on the second gear (41) is in transmission connection with a rotating motor (43) through a clasping mechanism (5);
the clasping mechanism (5) comprises:
the inner side surface of the locking conical surface sleeve (51) is fixedly connected with the transmission shaft (42), and the outer side surface of the locking conical surface sleeve is conical;
the clutch contact sleeve (52) is sleeved on the outer side of the locking conical surface sleeve (51), a first conical surface (53) and a second conical surface (54) are respectively arranged on the inner wall of the clutch contact sleeve (52), and the first conical surface (53) is in contact fit with the outer side surface of the locking conical surface sleeve (51);
the fixed taper sleeve (55) is positioned inside the clutch contact sleeve (52), the outer side surface of the fixed taper sleeve (55) is in contact fit with the second taper surface (54), and the fixed taper sleeve (55) is fixedly connected with the output shaft of the rotating motor (43);
the outer side of the clutch contact sleeve (52) is rotatably connected with a driving lever linkage frame (61) through a fulcrum shaft (6), and one end of the driving lever linkage frame (61) is hinged with the outer wall of the injection cavity (2) through a connecting block (62);
the other end of the outer side of the clutch contact sleeve (52) is connected with a telescopic cylinder (64) through a hinge pin (63);
the injection cavity (2) is also communicated with a feeding interface (27), and the feeding interface (27) is positioned on the outer side of the screw (3);
an injection nozzle (28) is fixedly arranged at the end hi of the injection cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510472.8A CN114474803A (en) | 2021-12-10 | 2021-12-10 | Tire preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510472.8A CN114474803A (en) | 2021-12-10 | 2021-12-10 | Tire preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114474803A true CN114474803A (en) | 2022-05-13 |
Family
ID=81492206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111510472.8A Pending CN114474803A (en) | 2021-12-10 | 2021-12-10 | Tire preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114474803A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897103A (en) * | 2015-06-18 | 2015-09-09 | 天津大学 | Elastic locking transmission mechanism used for rotating shaft |
| CN105860180A (en) * | 2016-03-03 | 2016-08-17 | 柳州永旺科技有限公司 | Rice transplanter tire molding process |
| CN110757750A (en) * | 2019-09-29 | 2020-02-07 | 宁波力劲机械有限公司 | Injection device of electric injection molding machine |
| CN113290796A (en) * | 2021-06-10 | 2021-08-24 | 北京化工大学 | Explosion type high-speed injection molding machine |
-
2021
- 2021-12-10 CN CN202111510472.8A patent/CN114474803A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897103A (en) * | 2015-06-18 | 2015-09-09 | 天津大学 | Elastic locking transmission mechanism used for rotating shaft |
| CN105860180A (en) * | 2016-03-03 | 2016-08-17 | 柳州永旺科技有限公司 | Rice transplanter tire molding process |
| CN110757750A (en) * | 2019-09-29 | 2020-02-07 | 宁波力劲机械有限公司 | Injection device of electric injection molding machine |
| CN113290796A (en) * | 2021-06-10 | 2021-08-24 | 北京化工大学 | Explosion type high-speed injection molding machine |
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| PB01 | Publication | ||
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Application publication date: 20220513 |
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