CN111331807A - Four-composite tire side wall extrusion pre-opening type suitable for producing embedded white tire side wall - Google Patents
Four-composite tire side wall extrusion pre-opening type suitable for producing embedded white tire side wall Download PDFInfo
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- CN111331807A CN111331807A CN202010257730.5A CN202010257730A CN111331807A CN 111331807 A CN111331807 A CN 111331807A CN 202010257730 A CN202010257730 A CN 202010257730A CN 111331807 A CN111331807 A CN 111331807A
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
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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
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/72—Side-walls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Tyre Moulding (AREA)
Abstract
The invention relates to a four-composite tire side wall extrusion pre-opening type suitable for producing an embedded white side wall, and belongs to the field of tire manufacturing. The pre-opening type is of an asymmetric structure, wherein one side of the pre-opening type is provided with a sub-opening rubber channel and a black sidewall rubber channel which are two channels in total; the other side is provided with a bead filler channel, a black sidewall filler channel, a white sidewall filler channel and a black coating filler channel which are four channels in total; the plane where all glue inlets of the two bead filler channels, the two black sidewall filler channels, the white sidewall filler channel and the black glue coating channel are located is the front back of the pre-opening type, the plane where all glue outlets of the two bead filler channels, the two black sidewall filler channels, the white sidewall filler channel and the black glue coating channel are located is the front face of the pre-opening type, and the plane where all glue outlets of the two bead filler channels, the two black sidewall filler channels, the white sidewall filler channel and the black glue coating channel are located is the front face of the pre-opening type.
Description
Technical Field
The invention relates to the field of tire production devices, in particular to a four-composite tire side wall extrusion pre-opening type suitable for producing an embedded white tire side wall.
Background
As is well known, with the development of the tire industry, the demands of people on tire products are more and more diversified and personalized. Therefore, in order to meet individual requirements of people, tires with white, red, blue and other colored sidewalls are produced. Among various colored tires, white sidewall tires are currently the most widespread and most commercially available. The white sidewall tire is generally formed by extruding black sidewall rubber, white sidewall rubber and bead filler rubber in a compounding manner when a sidewall part is extruded. The white sidewall part produced by the three-composite extrusion has the white glue exposed outside. In order to prevent the white glue from being polluted by molding or vulcanization and influence the attractiveness of the white glue, two methods are generally adopted in the industry for treatment. The first mode is as follows: the method comprises the following steps of (1) modifying equipment on an extrusion line before a tire side component enters a cooling water tank, covering a layer of black rubber sheet on white rubber, carrying out the same forming and vulcanizing procedures as the production process of a common black tire side tire, and finally polishing off black rubber coating on white rubber of a vulcanized finished tire to expose the white rubber to finish the manufacture of the white tire side tire; the second mode is as follows: and (3) normally coiling the extruded white tire side as the black tire side, manually attaching a layer of black rubber sheet on the white rubber in the forming stage to ensure that the white tire side rubber is completely covered, and after vulcanization, polishing off the black rubber on the white rubber of the finished tire to expose the white rubber, thereby finishing the manufacture of the white tire side.
It is known that the production of white sidewall tires at home and abroad basically adopts the mode of hot film pasting during extrusion or manual film pasting during molding. The two modes have different defects, the first mode needs to improve equipment in an extrusion process, a small extruder, a small open mill and a patch device are usually added, a black rubber sheet with proper width and thickness and calendering is compounded with white rubber before a tire side enters a cooling water tank in an extrusion production line, and black rubber coating on the white rubber is polished after vulcanization. This increases the cost of equipment modification and also increases the difficulty of the worker in handling. The second method is to add a step in the molding process, i.e. manually paste a layer of black rubber sheet on the white side rubber, and polish off the black rubber coating on the white rubber after vulcanization. The mode can lead in impurities to pollute the white glue due to the fact that the white glue is exposed outside in the cooling and reeling process and the cooling auxiliary line, the cooling water and the cloth liner are in direct contact with the white glue, and therefore the attractiveness of the polished white glue is affected.
Tire enterprise generally can not additionally purchase white sidewall extrusion line when producing white side wall tire, can use original black ordinary side wall production line usually, and present domestic tire side wall extrusion line is mostly two compound or three compound, uses original mouth of a mouth type device on present side wall extrusion line, if do not change equipment or increase the step, then can't realize extruding two side walls simultaneously, and one of them is ordinary side wall, another is embedded white side wall, this development of white and other colored side wall products that has restricted tire enterprise.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a four-composite tire side wall extrusion pre-opening type suitable for producing an embedded white side wall, a film laminating device is not required to be added in an extrusion process, a black film is not required to be manually laminated in a forming process, double side walls can be simultaneously extruded, one of the double side walls is a common side wall, the other double side wall is an embedded white side wall, namely, the white rubber is embedded in the middle and the periphery of the white rubber is surrounded by the black rubber when viewed from the cross section.
The technical scheme adopted by the invention for solving the technical problems is as follows: a four-composite tire side wall extrusion pre-opening type suitable for producing an embedded white tire side is provided with a pre-opening type, and is characterized in that the pre-opening type comprises two black tire side glue channels, two bead glue channels, a white tire side glue channel and a black glue coating channel, the pre-opening type is of an asymmetric structure, one bead glue channel and one black tire side glue channel are arranged on one side of the pre-opening type, and the two channels are formed in total; the other side is provided with a bead filler channel, a black sidewall filler channel, a white sidewall filler channel and a black coating filler channel which are four channels in total; the plane where the bead filler inlet of the two bead filler channels, the bead filler inlet of the two black sidewall filler channels, the bead filler inlet of the white sidewall filler channel and the bead filler inlet of the black coating filler channel are located is the front face of the pre-opening type, the plane where the bead filler outlet of the two bead filler channels, the bead filler outlet of the two black sidewall filler channels, the bead filler outlet of the white sidewall filler channel, the bead filler outlet of the black coating filler channel, the bead filler outlet of the white sidewall filler channel and the bead filler outlet of the black coating filler channel are located is the front face of the pre-opening type, and the two bead filler channels, the two black sidewall filler channels, the white sidewall filler channel and the black coating filler channel all penetrate from the front face to the front face of the pre-opening type.
The glue outlet of the black glue coating channel of the pre-opening type is rectangular, and the width of the glue outlet is 2-4 mm; the glue outlet of the white sidewall glue channel is in an inverted trapezoid shape, and the distance between the upper side and the lower side of the white sidewall glue channel is 4.5mm-6.5 mm; the distance between the lower edge of the rubber outlet of the white sidewall rubber channel and the lower edge of the rubber outlet of the black sidewall rubber channel is 2-4 mm; the black rubber coating channel rubber outlet, the white sidewall rubber outlet and the black sidewall rubber outlet are sequentially arranged from top to bottom, and the black rubber coating channel rubber outlet and the black sidewall rubber outlet completely surround the white sidewall rubber outlet.
The black rubber coating channel rubber inlet, the white sidewall rubber inlet, the black sidewall rubber inlet and the bead rubber inlet are rectangular and are sequentially arranged right behind the pre-opening from top to bottom.
The invention has the advantages that the embedded white tire side with four rubber compounds and different widths can be directly extruded only by adding the tire side pre-opening type on the four-compound extrusion production line, a film laminating device is not required to be added in the extrusion process, a black film is not required to be manually laminated in the forming process, double tire sides can be simultaneously extruded, one of the two tire sides is a common tire side, the other one is an embedded white tire side, namely, the white rubber is embedded in the middle and surrounded by the black rubber when viewed from the cross section, the equipment transformation cost can be greatly saved, the labor intensity of workers is reduced, the production efficiency is improved, and the market competitiveness of products is enhanced.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a rear view of the present invention.
Fig. 3 is an isometric view of the present invention.
Fig. 4 is a schematic plan view of all the channel outlets of the present invention.
FIG. 5 is a schematic plan view of the side of the white sidewall channel outlet of the present invention.
Fig. 6 is a schematic plan view of all the channel glue inlets of the present invention.
FIG. 7 is a schematic view of the construction of an in-line white sidewall suitable for production in accordance with the present invention.
Fig. 8 is a schematic structural diagram of an outer mouth plate used with the invention.
In the figure, 1, a bead filler channel, 2, a black tire side rubber channel, 3, a white tire side rubber channel, 4, a black rubber coating channel, 5, a bead filler channel rubber inlet, 6, a black tire side rubber channel rubber inlet, 7, a white tire side rubber channel rubber inlet, 8, a black rubber coating channel rubber inlet, 9, a bead filler channel rubber outlet, 10, a black tire side rubber channel rubber outlet, 11, a white tire side rubber channel rubber outlet, 12, a black rubber coating channel rubber outlet, 13, an outer opening template and 14, an outer opening template opening are formed.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1, 2 and 3, the pre-die comprises two sub-edge rubber channels 1, two black sidewall rubber channels 2, a white sidewall rubber channel 3 and a black coating rubber channel 4. The pre-opening type is of an asymmetric structure, wherein one side of the pre-opening type is provided with a sub-opening rubber channel 1 and a black sidewall rubber channel 2 which are two channels in total; the other side is provided with a bead filler channel 1, a black sidewall filler channel 2, a white sidewall filler channel 3 and a black coating filler channel 4, and the total number of the channels is four. Two bead filler channels 1, two black sidewall filler channels 2, a white sidewall filler channel 3, and a black coating filler channel 4, namely, the plane where the bead filler channel inlet 5, the black sidewall filler channel inlet 6, the white sidewall filler channel inlet 7 and the black coating filler channel inlet 8 are located is the right back of the pre-opening, and all the glue outlets of the two bead filler channels 1, the two black sidewall filler channels 2, the white sidewall filler channel 3 and the black coating filler channel 4 are arranged, namely, the plane where the bead filler outlet 9, the black sidewall filler outlet 10, the white sidewall filler outlet 11 and the black rubber coating outlet 12 are located is the front of the pre-opening, and the two bead filler channels 1, the two black sidewall filler channels 2, the white sidewall filler channel 3 and the black rubber coating channel 4 all penetrate from the front to the back of the pre-opening.
As shown in fig. 4 and 5, the glue outlet 12 of the black glue coating channel of the pre-opening type is approximately rectangular, and the width is 2mm-4 mm; the glue outlet 11 of the white sidewall glue channel is in an inverted trapezoid shape, and the distance between the upper side and the lower side of the white sidewall glue channel is 4.5mm-6.5 mm; the distance between the lower edge of the rubber outlet 11 of the white sidewall rubber channel and the lower edge of the rubber outlet 10 of the black sidewall rubber channel is 2-4 mm. The black rubber coating channel rubber outlet 12, the white sidewall rubber outlet 11 and the black sidewall rubber outlet 10 are sequentially arranged in front of the pre-opening from top to bottom, and the black rubber coating channel rubber outlet 12 and the black sidewall rubber outlet 10 completely surround the white sidewall rubber outlet 11.
As shown in fig. 2 and 6, the black coating rubber channel inlet 8, the white sidewall rubber channel inlet 7, the black sidewall rubber channel inlet 6 and the bead rubber channel inlet 5 of the pre-opening are all rectangular and are arranged in sequence from top to bottom right behind the pre-opening.
As shown in fig. 4, 5 and 6, one slit glue inlet 5 and two slit glue outlets 9 of the slit glue channel 1 of the pre-mold are provided; one black sidewall rubber channel glue inlet 6 and two black sidewall rubber channel glue outlets 10 of the pre-opening type black sidewall rubber channel 2 are arranged; one white sidewall rubber channel rubber inlet 7 and one white sidewall rubber channel rubber outlet 11 of the pre-opening type white sidewall rubber channel 3 are arranged; one black glue coating channel glue inlet 8 and one black glue coating channel glue outlet 12 of the pre-opening type black glue coating channel 4 are provided.
As shown in fig. 4 and 6, the sub-opening glue inlet 5 at the front of the pre-opening form is communicated with the sub-opening glue outlet 9 at the back of the pre-opening form to form a sub-opening glue channel 1; the glue inlet 6 of the black sidewall glue channel at the front and back of the pre-opening type is communicated with the glue outlet 10 of the black sidewall glue channel at the front of the pre-opening type to form a black sidewall glue channel 2; the rubber inlet 7 of the white sidewall rubber channel at the front and back of the pre-opening is communicated with the rubber outlet 11 of the white sidewall rubber channel at the front of the pre-opening to form a white sidewall channel 3; the glue inlet 8 of the black glue coating channel at the front and back of the pre-opening type is communicated with the glue outlet 12 of the black glue coating channel at the front of the pre-opening type to form a black glue coating channel 4.
As shown in FIG. 7, two sidewalls can be simultaneously extruded by using the pre-opening mold, wherein the left sidewall is formed by compounding a sub-opening rubber and a black sidewall rubber, and the right sidewall is formed by compounding four rubbers of the sub-opening rubber, the black sidewall rubber, a white sidewall rubber and a black coating rubber, namely an embedded white sidewall.
If the tire side with the structure shown in fig. 7 is to be produced, the bead filler flows through the bead filler channel 1 of the pre-opening mold to reach the inner side of the outer opening mold plate opening 14 of the outer opening mold plate 13, the black tire side filler flows through the black tire side filler channel 2 of the pre-opening mold to reach the inner side of the outer opening mold plate opening 14 of the outer opening mold plate 13, the white tire side filler flows through the white tire side filler channel 3 of the pre-opening mold to reach the inner side of the outer opening mold plate opening 14 of the outer opening mold plate 13, the black overlay filler flows through the black overlay filler channel 4 of the pre-opening mold to reach the inner side of the outer opening mold plate opening 14 of the outer opening mold plate 13, and the bead filler, the black tire side filler, the white tire side filler and the black overlay filler are converged at the inner side of the outer opening mold plate opening 14 of the outer opening mold plate 13 and flow through the tire side outer opening mold plate opening 14 together, so that the double.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that the above embodiments are illustrative only and are not limiting upon the scope of the invention. Those skilled in the art should also make simple modifications to the design concept of the present invention, such as pressing the white sidewall rubber out on the left, changing the cross-sectional shape of the white sidewall rubber into a rectangle or other shapes, etc., all of which are intended to be covered by the scope of the present invention.
Claims (3)
1. A four-composite tire side wall extrusion pre-opening type suitable for producing an embedded white tire side wall is provided with a pre-opening type, and is characterized in that the pre-opening type comprises two black tire side glue channels, two bead glue channels, a white tire side glue channel and a black glue coating channel, the pre-opening type is of an asymmetric structure, one bead glue channel and one black tire side glue channel are arranged on one side of the pre-opening type, and the two channels are formed in total; the other side is provided with a bead filler channel, a black sidewall filler channel, a white sidewall filler channel and a black coating filler channel which are four channels in total; the plane where the bead filler inlet of the two bead filler channels, the bead filler inlet of the black sidewall filler channel, the bead filler inlet of the white sidewall filler channel and the bead filler inlet of the black coating filler channel are located is the front back of the pre-opening type, the plane where the bead filler outlet of the two bead filler channels, the bead filler outlet of the two black sidewall filler channels, the bead filler outlet of the white coating filler channel, the bead filler outlet of the black sidewall filler channel, the bead filler outlet of the white sidewall filler channel and the bead filler outlet of the black coating filler channel are located is the front of the pre-opening type, and the two bead filler channels, the two black sidewall filler channels, the white sidewall filler channel and the black coating filler channel all penetrate from the front back of the pre-opening type to the front.
2. The four-composite tire side wall extrusion pre-lip suitable for producing the embedded white side wall according to claim 1, wherein the black coating channel outlet of the pre-lip is rectangular and has a width of 2mm-4 mm; the glue outlet of the white sidewall glue channel is in an inverted trapezoid shape, and the distance between the upper side and the lower side of the white sidewall glue channel is 4.5mm-6.5 mm; the distance between the lower edge of the rubber outlet of the white sidewall rubber channel and the lower edge of the rubber outlet of the black sidewall rubber channel is 2-4 mm; the black rubber coating channel rubber outlet, the white sidewall rubber outlet and the black sidewall rubber outlet are sequentially arranged from top to bottom, and the black rubber coating channel rubber outlet and the black sidewall rubber outlet completely surround the white sidewall rubber outlet.
3. The four-compound tire side wall extrusion pre-opening type suitable for producing the embedded white side wall according to claim 1, wherein the black rubber coating channel rubber inlet, the white side rubber channel rubber inlet, the black side rubber channel rubber inlet and the bead rubber channel rubber inlet are all rectangular and are arranged from top to bottom right behind the pre-opening type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010257730.5A CN111331807A (en) | 2020-04-03 | 2020-04-03 | Four-composite tire side wall extrusion pre-opening type suitable for producing embedded white tire side wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010257730.5A CN111331807A (en) | 2020-04-03 | 2020-04-03 | Four-composite tire side wall extrusion pre-opening type suitable for producing embedded white tire side wall |
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| Publication Number | Publication Date |
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| CN111331807A true CN111331807A (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010257730.5A Pending CN111331807A (en) | 2020-04-03 | 2020-04-03 | Four-composite tire side wall extrusion pre-opening type suitable for producing embedded white tire side wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895068A (en) * | 2021-11-08 | 2022-01-07 | 山东兴鸿源轮胎有限公司 | White rubber composite tread of low-section white character and white ring tire and pre-opening type and application thereof |
| CN115008803A (en) * | 2022-06-23 | 2022-09-06 | 赛轮集团股份有限公司 | Tire forming method |
-
2020
- 2020-04-03 CN CN202010257730.5A patent/CN111331807A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895068A (en) * | 2021-11-08 | 2022-01-07 | 山东兴鸿源轮胎有限公司 | White rubber composite tread of low-section white character and white ring tire and pre-opening type and application thereof |
| CN115008803A (en) * | 2022-06-23 | 2022-09-06 | 赛轮集团股份有限公司 | Tire forming method |
| CN115008803B (en) * | 2022-06-23 | 2024-06-11 | 赛轮集团股份有限公司 | Tire molding method |
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