CN111267319A - Five-composite tire tread extrusion pre-opening type - Google Patents
Five-composite tire tread extrusion pre-opening type Download PDFInfo
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- CN111267319A CN111267319A CN202010209388.1A CN202010209388A CN111267319A CN 111267319 A CN111267319 A CN 111267319A CN 202010209388 A CN202010209388 A CN 202010209388A CN 111267319 A CN111267319 A CN 111267319A
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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
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets 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
- 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
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
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- 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
- B29L2030/002—Treads
Abstract
The invention relates to a five-compound tire tread extrusion pre-opening type, and belongs to the field of tire production devices. The flank rubber channel, the upper crown rubber channel, the lower crown rubber channel and the transition rubber channel on one side are symmetrically arranged with the flank rubber channel, the upper crown rubber channel, the lower crown rubber channel and the transition rubber channel on the other side, the conducting resin channel is located at the center of the pre-opening type body, the two side wing rubber channels are located on the surface of the upper front face, the two upper crown rubber channels penetrate through the pre-opening type body from the upper portion of the front face to the upper portion of the front face, the conducting resin channel penetrates through the pre-opening type body from the middle portion of the front face to the middle portion of the front face, the two lower crown rubber channels penetrate through the pre-opening type body from the lower portion of the front face to the lower portion of the front face, the two transition rubber channels are located on the surface of the lower face, the two side wing rubber channels, the two upper crown rubber channels, the two lower crown rubber channels, the two transition rubber channels, all inlets of one conducting resin channel are located on.
Description
Technical Field
The invention relates to the field of tire production equipment, in particular to a five-compound tire tread extrusion pre-opening type.
Background
As is well known, with the rapid development of the tire industry, the product classification is more and more detailed, and the functional requirements are more and more. Particularly, for passenger car tires, the requirements on low rolling resistance, high wet skid resistance, grip on ice and snow and the like are increasing, so that the application of white carbon black in the tires is wider and wider, the use amount of the white carbon black is also higher, and the high content of the white carbon black in the treads can cause poor conductivity of the tires. Static electricity generated in the running process of the tire cannot be conducted to the ground, and particularly in dry seasons, property and even life risks can be brought to people. Therefore, some tires are designed to take into account the electrical conductivity of the tire.
With the progress of tire technology, functional research on different parts of a tire is more and more detailed. For example, for snow tires, treads at different locations have different performance requirements in order to achieve good snow performance. The upper layer tread of the snow tire needs to keep good flexibility at low temperature to ensure that the tire has good snow gripping performance, the lower layer tread needs to provide enough rigidity to ensure that the tire has good durability, and the transition rubber sheet needs to have good viscosity to be smoothly adhered by other rubber parts to ensure good technological performance in the tire production process. The side flap adhesive also needs to have good tack and extrusion properties to ensure smooth production of extrusion and molding. In the same way, for tires with different performance requirements, the design of the tire needs to consider that different rubber material combinations are needed to be used at different parts of the tread to meet the requirements of different products.
According to the understanding, most of the tread production lines of the current domestic tire production enterprises are three-compound or four-compound extrusion lines, the existing die device can not realize that one set of die can not extrude five-compound or four-compound treads with conductive adhesive, and can also extrude four-compound and three-compound treads without conductive adhesive, and different tread compound forms can not be used according to different performance requirements of tires so as to meet different performance requirements of different groups on the tires, thereby restricting the development of new products of the tire enterprises.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the extrusion pre-opening type of the tread of the five-compound tire, which can extrude five-compound and four-compound treads with conductive adhesive and four-compound and three-compound treads without conductive adhesive, and simultaneously allows the tread to adopt different compound forms so as to meet the requirements of different performances of the tire.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a five compound tire treads extrude mouth of a mouthful type in advance, is equipped with the mouth of a mouthful type in advance, its characterized in that: the pre-opening type body comprises two wing rubber channels, two upper crown rubber channels, two lower crown rubber channels, two transition rubber channels and a conductive rubber channel. The side wing rubber channel, the upper crown rubber channel, the lower crown rubber channel and the transition rubber channel on one side of the pre-opening body are symmetrically arranged with the side wing rubber channel, the upper crown rubber channel, the lower crown rubber channel and the transition rubber channel on the other side, only one conductive rubber channel is arranged, and the conductive rubber channel is positioned at the center of the pre-opening body; the upper, middle, lower and rear faces of the front face of the pre-opening type body are four faces which are respectively an upper front face, a front face, a lower front face and a rear face, two wing rubber channels of the pre-opening type body are positioned on the surface of the upper front face, two upper crown rubber channels penetrate through the pre-opening type body from the upper part of the front face to the upper part of the front face, a conductive rubber channel penetrates through the pre-opening type body from the middle part of the front face to the middle part of the front face, two lower crown rubber channels penetrate through the pre-opening type body from the lower part of the front face to the lower part of the front face, two transition rubber channels are positioned on the surface of the front face, all inlets of the two wing rubber channels, the two upper crown rubber channels, the two lower crown rubber channels, the two transition rubber channels and the conductive rubber.
The outlets of the upper tire crown rubber channel, the lower tire crown rubber channel and the transition rubber channel are sequentially arranged in parallel from top to bottom in front, wherein the distance between the upper edge and the lower edge of the outlet of the upper tire crown rubber channel is 15mm-25mm, the distance between the upper edge and the lower edge of the outlet of the lower tire crown rubber channel is 2mm-5mm, the distance between the upper edge and the lower edge of the outlet of the transition rubber channel is 2mm-4mm, the distance between the lower edge of the outlet of the upper tire crown rubber channel and the upper edge of the outlet of the lower tire crown rubber channel is 0.5mm-1.5mm, and the distance between the lower edge of the outlet of the lower tire crown rubber channel and the upper edge of the outlet of the transition rubber.
The upper front and the lower front are provided with an intermediate support body with an approximately elliptical section, the intermediate support body sequentially penetrates through an upper tread rubber channel, a lower tread rubber channel and a transition rubber channel from the upper front to the lower front from the lower front, a conductive rubber channel penetrates through the intermediate support body from the front to the front from the front, the inlet of the conductive rubber channel is elliptical, the upper tread rubber channel inlet and the lower tread rubber channel inlet which are positioned at the front are arranged in the middle, the outlet of the conductive rubber channel is rectangular, the central position at the front divides the outlet of the upper tread rubber channel, the outlet of the lower tread rubber channel and the outlet of the transition rubber channel into two bilaterally symmetrical outlets, the width of the outlet of the conductive rubber channel is 1.5-2.5 mm, and the height of the outlet of the conductive rubber channel is 11-15.
The invention has the advantages that the tire tread can be extruded with five composite treads and four composite treads of conductive adhesive, can also be extruded with four composite treads and three composite treads without conductive adhesive, and can also allow tire designers to select different tread composite forms according to the performance characteristics of tire products when designing tires, thereby meeting the performance requirements of the tires, developing tires with different performances and meeting the increasingly differentiated requirements in the market.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a rear view of the present invention.
Fig. 3 is a side 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 all the channel inlets of the present invention.
FIG. 6 is a schematic view of a tread outer lip plate structure commonly used in tire enterprises.
FIG. 7 is a schematic structural view of a five-compound tread.
FIG. 8 is a schematic view of a four compound thick tread band configuration with conductive rubber.
Fig. 9 is a schematic diagram of a four-compound thick transition glue structure with conductive glue.
FIG. 10 is a schematic view of the structure of a four-compound tread without conductive gum.
FIG. 11 is a schematic view of a three compound thick tread band structure without conductive rubber.
Fig. 12 is a structural schematic diagram of a three-compound thick transition glue without conductive glue.
In the figure, 1, a side rubber channel, 2, an upper tire cap rubber channel, 3, a lower tire cap rubber channel, 4, a transition rubber channel, 5, a conductive rubber channel, 6, a middle support body, 7, an outer mouth plate, 8, an opening, 9, an upper front, 10, a front, 11, a lower front, 12, a rear front, 13, a side rubber, 14, an upper tire cap rubber, 15, a lower tire cap rubber, 16, a transition rubber, 17, a conductive rubber, 18, a side rubber channel outlet, 19, an upper tire cap rubber channel outlet, 20, a lower tire cap rubber channel outlet, 21, a transition rubber channel outlet, 22, a conductive rubber channel outlet, 23, a side rubber channel inlet, 24, an upper tire cap rubber channel inlet, 25, a lower tire cap rubber channel inlet, 26, a transition rubber channel inlet, 27 and a conductive rubber channel inlet are arranged in sequence.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1, 2 and 3, the tire tread rubber comprises two wing rubber channels 1, two upper crown rubber channels 2, two lower crown rubber channels 3, two transition rubber channels 4 and one conductive rubber channel 5. The side wing rubber channel 1, the upper tire crown rubber channel 2, the lower tire crown rubber channel 3 and the transition rubber channel 4 on one side of the pre-opening type body are symmetrically arranged with the side wing rubber channel 1, the upper tire crown rubber channel 2, the lower tire crown rubber channel 3 and the transition rubber channel 4 on the other side, and only one conductive rubber channel 5 is arranged and located in the center of the pre-opening type body. The front view positions of the pre-lip body include four planes, namely an upper front plane 9, a front plane 10, a lower front plane 11 and a rear plane 12. Two wing rubber channels 1 of the pre-opening type body are positioned on the surface of an upper front face 9, two upper crown rubber channels 2 penetrate through the pre-opening type body from the upper part of a right back face 12 to the upper part of a right front face 10, a conductive rubber channel 5 penetrates through the pre-opening type body from the middle part of the right back face 12 to the middle part of the right front face 10, two lower crown rubber channels 3 penetrate through the pre-opening type body from the lower part of the right back face 12 to the lower part of the right front face 10, and two transition rubber channels 4 are positioned on the surface of a lower front face 11. All inlets of the two flank rubber channels 1, the two upper crown rubber channels 2, the two lower crown rubber channels 3, the two transition rubber channels 4 and the one conductive rubber channel 5, namely, the flank rubber channel inlet 23, the upper crown rubber channel inlet 24, the lower crown rubber channel inlet 25, the transition rubber channel inlet 26 and the conductive rubber channel inlet 27 are located right behind 12, and all corresponding outlets, namely, the flank rubber channel outlet 18, the upper crown rubber channel outlet 19, the lower crown rubber channel outlet 20, the transition rubber channel outlet 21 and the conductive rubber channel outlet 22 are located right ahead 10.
As shown in fig. 1, 2 and 3, an intermediate support 6 having an approximately elliptical cross section is provided between the upper front face 9 and the lower front face 11, and the intermediate support 6 passes through the upper crown rubber flow path 2, the lower crown rubber flow path 3 and the transition rubber flow path 4 from the upper front face 9 to the lower front face 11 in this order.
As shown in fig. 1 and 4, the upper crown rubber channel 2, the lower crown rubber channel 3, the upper crown rubber channel outlet 19, the lower crown rubber channel outlet 20 and the transition rubber channel outlet 21 of the transition rubber channel 4 are sequentially arranged in parallel from top to bottom in the front 10, wherein the upper crown rubber channel outlet 19 of the upper crown rubber channel 2 is 15mm-25mm in width from top to bottom, the lower crown rubber channel outlet 20 of the lower crown rubber channel 3 is 2mm-5mm in width from top to bottom, and the transition rubber channel outlet 21 of the transition rubber channel 4 is 2mm-4mm in width from top to bottom. The distance between the lower edge of an upper crown rubber channel outlet 19 of the upper crown rubber channel 2 and the upper edge of a lower crown rubber channel outlet 20 of the lower crown rubber channel 3 is 0.5mm-1.5mm, and the distance between the lower edge of a lower crown rubber channel outlet 20 of the lower crown rubber channel 3 and the upper edge of a transition rubber channel outlet 21 of the transition rubber channel 4 is 0.5mm-1.5 mm.
As shown in fig. 1 and fig. 3, the conductive rubber flow channel 5 passes through the intermediate support 6 from the front side 12 to the front side 10, the conductive rubber channel inlet 27 of the conductive rubber channel 5 is oval, is located between the upper tread cap rubber channel inlet 24 of the upper tread rubber channel 2 and the lower tread cap rubber channel inlet 25 of the lower tread rubber channel 3 of the front side 12, and the conductive rubber channel outlet 22 of the conductive rubber channel 5 is rectangular, has a width of 1.5m-2.5mm and a length of 11mm-15mm, and is located at the center of the front side 10, so as to divide the upper tread cap rubber channel outlet 19 of the upper tread cap rubber channel 2, the lower tread cap rubber channel outlet 20 of the lower tread cap rubber channel 3, and the transition rubber channel outlet 21 of the transition rubber channel 4 into two outlets which are bilaterally symmetrical.
As shown in fig. 4, the inlets of the three channels of the upper crown rubber channel 2, the lower crown rubber channel 3 and the transition rubber channel 4, that is, the upper crown rubber channel inlet 24, the lower crown rubber channel inlet 25 and the transition rubber channel inlet 26 are arranged in parallel right behind the vehicle 12, the wing rubber channel inlet 23 of the wing rubber channel 1 and the upper crown rubber channel inlet 24 of the upper crown rubber channel 2 are located above the conductive rubber channel inlet 27 of the conductive rubber channel 5, and the lower crown rubber channel inlet 25 of the lower crown rubber channel 3 and the transition rubber channel inlet 26 of the transition rubber channel 4 are located below the conductive rubber channel inlet 27 of the conductive rubber channel 5.
As shown in fig. 5, the inlets of the flank rubber channel 1, the upper crown rubber channel 2, the conductive rubber channel 5, the lower crown rubber channel 3 and the transition rubber channel 4, that is, the inlets of the flank rubber channel, the upper crown rubber channel inlet 24, the conductive rubber channel inlet 27, the lower crown rubber channel inlet 25 and the transition rubber channel inlet 26, are sequentially arranged in parallel from top to bottom at the right back 12, the flank rubber channels 1 are bilaterally symmetrical, and only one inlet of each of the upper crown rubber channel 2, the lower crown rubber channel 3, the transition rubber channel 4 and the conductive rubber channel 5 is provided.
Fig. 7, 8, 9, 10, 11 and 12 are schematic structural diagrams of different compound forms of the tread, and all the structural diagrams are in an axisymmetric structure.
If a tread of the composite form shown in fig. 7 is to be produced, the side flap rubber flows through the side flap rubber channel 1 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, the upper crown rubber flows through the upper crown rubber channel 2 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, the lower crown rubber flows through the lower crown rubber channel 3 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, the transition rubber flows through the transition rubber channel 4 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, the conductive rubber flows through the conductive rubber channel 5 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, and the five rubbers flowing out from the five channels, namely the side flap rubber 13, the upper crown rubber 14, the lower crown rubber 15, the transition rubber 16 and the conductive rubber 17, are merged on the inner side of the opening 8 of the outer mouth plate 7 and flow together through the opening 8, thereby completing the extrusion of the composite form.
If a tread of the composite form shown in fig. 8 is to be produced, the side flap rubber flows through the side flap rubber channel 1 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the upper crown rubber flows through the upper crown rubber channel 2 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the same upper crown rubber flows through the lower crown rubber channel 3 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the transition rubber flows through the transition rubber channel 4 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the conductive rubber flows through the conductive rubber channel 5 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, and the four rubbers flowing out of the five channels — the side flap rubber 13, the upper crown rubber 14, the transition rubber 16, and the conductive rubber 17 join inside the opening 8 of the outer lip plate 7 and flow together through the opening 8, completing the extrusion of the composite form shown in fig. 8.
If a tread of the composite form shown in fig. 9 is to be produced, the flank rubber flows through the flank rubber channel 1 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the upper crown rubber flows through the upper crown rubber channel 2 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the transition rubber flows through the lower crown rubber channel 3 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the same transition rubber flows through the transition rubber channel 4 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the conductive rubber flows through the conductive rubber channel 5 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the four rubbers flowing out from the five flow channels — the flank rubber 13, the upper crown rubber 14, the transition rubber 16, and the conductive rubber 17 join inside the opening 8 of the outer lip plate 7 and flow together through the opening 8, and the extrusion of the tread of the structure shown in fig. 9 is completed.
If a tread of the composite form shown in fig. 10 is to be produced, the side cap rubber flows through the side cap rubber channel 1 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, the upper crown rubber flows through the upper crown rubber channel 2 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, the lower crown rubber flows through the lower crown rubber channel 3 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, the transition rubber flows through the transition rubber channel 4 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, and the four rubbers flowing out of the four channels, namely the side cap rubber 13, the upper crown rubber 14, the lower crown rubber 15 and the transition rubber 16, are merged on the inner side of the opening 8 of the outer mouth plate 7 and flow together through the opening 8, and the extrusion of the composite form tread shown in fig. 10 is completed.
If a tread of the composite form shown in fig. 11 is to be produced, the side flap rubber flows through the side flap rubber channel 1 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, the upper crown rubber flows through the upper crown rubber channel 2 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, the same upper crown rubber flows through the lower crown rubber channel 3 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, the transition rubber flows through the transition rubber channel 4 to the opening 8 of the tread outer mouth plate 7 shown in fig. 6, and the three rubbers flowing out of the four channels, namely the side flap rubber 13, the upper crown rubber 14 and the transition rubber 16, converge on the inner side of the opening 8 of the outer mouth plate 7 and flow together through the opening 8, and the extrusion of the composite form tread shown in fig. 11 is completed.
If a tread of the composite form shown in fig. 12 is to be produced, the side flap rubber flows through the side flap rubber channel 1 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the upper crown rubber flows through the upper crown rubber channel 2 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the transition rubber flows through the lower crown rubber channel 3 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, the same transition rubber flows through the transition rubber channel 4 to the opening 8 of the tread outer lip plate 7 shown in fig. 6, and the three rubbers flowing out of the four channels, namely the side flap rubber 13, the upper crown rubber 14 and the transition rubber 16, converge at the inner side of the opening 8 of the outer lip plate 7 and flow together through the opening 8, and the extrusion of the composite form tread shown in fig. 12 is completed.
Claims (3)
1. The utility model provides a five compound tire treads extrude mouth of a mouthful type in advance, is equipped with the mouth of a mouthful type in advance, its characterized in that: the pre-opening type body comprises two wing rubber channels, two upper crown rubber channels, two lower crown rubber channels, two transition rubber channels and a conductive rubber channel. The side wing rubber channel, the upper crown rubber channel, the lower crown rubber channel and the transition rubber channel on one side of the pre-opening body are symmetrically arranged with the side wing rubber channel, the upper crown rubber channel, the lower crown rubber channel and the transition rubber channel on the other side, only one conductive rubber channel is arranged, and the conductive rubber channel is positioned at the center of the pre-opening body; the upper, middle, lower and rear faces of the front face of the pre-opening type body are four faces which are respectively an upper front face, a front face, a lower front face and a rear face, two wing rubber channels of the pre-opening type body are positioned on the surface of the upper front face, two upper crown rubber channels penetrate through the pre-opening type body from the upper part of the front face to the upper part of the front face, a conductive rubber channel penetrates through the pre-opening type body from the middle part of the front face to the middle part of the front face, two lower crown rubber channels penetrate through the pre-opening type body from the lower part of the front face to the lower part of the front face, two transition rubber channels are positioned on the surface of the front face, all inlets of the two wing rubber channels, the two upper crown rubber channels, the two lower crown rubber channels, the two transition rubber channels and the conductive rubber.
2. The five-compound tire tread extrusion pre-opening type according to claim 1, wherein outlets of the upper crown rubber channel, the lower crown rubber channel and the transition rubber channel are sequentially arranged in parallel from top to bottom right in front, wherein the distance between the upper edge and the lower edge of the outlet of the upper crown rubber channel is 15mm-25mm, the distance between the upper edge and the lower edge of the outlet of the lower crown rubber channel is 2mm-5mm, the distance between the upper edge and the lower edge of the outlet of the transition rubber channel is 2mm-4mm, the distance between the lower edge of the outlet of the upper crown rubber channel and the upper edge of the outlet of the lower crown rubber channel is 0.5mm-1.5mm, and the distance between the lower edge of the outlet of the lower crown rubber channel and the upper edge of the outlet of the transition rubber channel is 0.5 mm-.
3. The extrusion pre-lip of the tread of a five-component tire as claimed in claim 1, wherein an intermediate support body with an approximately elliptical cross section is arranged between the upper front face and the lower front face, the intermediate support body sequentially passes through the upper tread rubber channel, the lower tread rubber channel and the transition rubber channel from the upper front face to the lower front face, the conductive rubber channel passes through the intermediate support body from the front back face to the front face, the inlet of the conductive rubber channel is elliptical, the intermediate position is located between the inlet of the upper tread rubber channel and the inlet of the lower tread rubber channel at the front face, the outlet of the conductive rubber channel is rectangular, the central position is located at the front face, the outlet of the upper tread rubber channel, the outlet of the lower tread rubber channel and the outlet of the transition rubber channel are respectively divided into two bilaterally symmetrical outlets, the width of the conductive rubber channel is 1.5m-2.5mm, and the height.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010209388.1A CN111267319A (en) | 2020-03-23 | 2020-03-23 | Five-composite tire tread extrusion pre-opening type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010209388.1A CN111267319A (en) | 2020-03-23 | 2020-03-23 | Five-composite tire tread extrusion pre-opening type |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761801A (en) * | 2020-07-27 | 2020-10-13 | 马鞍山市威利坚机械科技有限公司 | Pre-opening mold with conductive cavity |
| CN113352576A (en) * | 2021-07-27 | 2021-09-07 | 三角轮胎股份有限公司 | Four-composite tread extrusion pre-opening type special for light truck tire and using method |
| CN113580530A (en) * | 2021-07-27 | 2021-11-02 | 三角轮胎股份有限公司 | Four-composite tread extrusion pre-opening type capable of realizing left and right different rubber of tread and using method |
| CN115709618A (en) * | 2022-11-23 | 2023-02-24 | 广饶吉星轮胎有限公司 | Tire and tire manufacturing method |
-
2020
- 2020-03-23 CN CN202010209388.1A patent/CN111267319A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761801A (en) * | 2020-07-27 | 2020-10-13 | 马鞍山市威利坚机械科技有限公司 | Pre-opening mold with conductive cavity |
| CN113352576A (en) * | 2021-07-27 | 2021-09-07 | 三角轮胎股份有限公司 | Four-composite tread extrusion pre-opening type special for light truck tire and using method |
| CN113580530A (en) * | 2021-07-27 | 2021-11-02 | 三角轮胎股份有限公司 | Four-composite tread extrusion pre-opening type capable of realizing left and right different rubber of tread and using method |
| CN115709618A (en) * | 2022-11-23 | 2023-02-24 | 广饶吉星轮胎有限公司 | Tire and tire manufacturing method |
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