CN218453168U - Five compound treads of tire extrude mouth of a mouthful types in advance convenient to tread rubber is extruded - Google Patents
Five compound treads of tire extrude mouth of a mouthful types in advance convenient to tread rubber is extruded Download PDFInfo
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- CN218453168U CN218453168U CN202220838630.6U CN202220838630U CN218453168U CN 218453168 U CN218453168 U CN 218453168U CN 202220838630 U CN202220838630 U CN 202220838630U CN 218453168 U CN218453168 U CN 218453168U
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Abstract
The utility model belongs to the technical field of the tire is made and specifically relates to a five compound treads of tire extrude mouth type in advance convenient to tread rubber extrudes, including mouthful type body in advance, be provided with a plurality of entrances on the mouth type body in advance and be located just back, export and be located the sizing material passageway just in front, the sizing material passageway includes: the upper tire crown rubber channel and the lower tire crown rubber channel are located right in front and distributed up and down, the upper tire crown rubber channel and the lower tire crown rubber channel are separated through a transverse rib, and the end face of the transverse rib retracts a certain distance towards the inside of the pre-opening body. The utility model has the advantages that make when the play gum mouth on the outer mouthful of type less (especially to the very thin condition of tread rubber), go up the tread rubber and can combine with tread rubber down in the passageway, can have more unobstructed passageway to flow, and not died by stifled.
Description
Technical Field
The utility model belongs to the technical field of the tire manufacturing and specifically relates to a five compound treads of tire extrude mouth of a river type in advance convenient to tread rubber extrudes.
Background
The development of the tire industry in the world is rapid, the development of science and technology drives tire innovation, white carbon black materials are widely applied to tire manufacturing along with the increasing requirements of various aspects of environment protection, low rolling resistance, static resistance, wet skid resistance, grip force for complex road surfaces and the like of tires of passenger vehicles, but the white carbon black content on the tire surface can cause poor conductivity and serious potential safety hazards exist, if the tires run on the road at high speed, static electricity generated by the tires can not be led into the road surface, and the safety of vehicles, people and property can be seriously threatened when the tires run to be dry. Therefore, the problem of electric conduction of the tire with high white carbon black content in the tread rubber needs to be solved.
The technical innovation is accompanied with new research and creation of tires, along with the continuous improvement of life of people, different environments, climates, roads and vehicles have more ideal requirements on the tires of passenger vehicles, the functional attention and research on different parts of the tires are thinner and thinner, different positions of the tires have different performance requirements, such as snow tires, in order to achieve the snow grip performance, the upper crown tire layer of the snow tire should keep better flexibility at low temperature, the tire is ensured to have better snow grip performance, and the lower crown tire layer is required to have enough rigidity to ensure that the tire has good durability. The base rubber needs to have good adhesion performance, smooth tire building and manufacturing, and ensure tire vibration buffering, and similarly, the wing rubber also needs to have good viscosity, and a good tire needs not only excellent design, mature and good process flow and manufacturing, but also excellent design.
At present, most of domestic tire production units are two-compounding, three-compounding and four-compounding extrusion equipment, the pre-opening type produced at present cannot meet the requirement that one pre-opening type not only realizes five-compounding and four-compounding tire treads with conductive adhesive, but also can produce four-compounding and three-compounding tire treads without the conductive adhesive, the tire tread tires in more kinds of compounding forms cannot be met according to the development and design of new products, and the development of tire enterprises is hindered.
Although there are related patents disclosing five-compound pre-mouth shapes, for example, chinese patent publication No. CN111267319A, published as 20200612 discloses a five-compound tire tread extrusion pre-mouth shape, which comprises a side wing rubber channel, an upper crown rubber channel, a lower crown rubber channel, a transition rubber channel, and a side wing rubber channel, an upper crown rubber channel, a lower crown rubber channel, and a transition rubber channel arranged symmetrically, wherein the conductive rubber channel is located at the center of the pre-mouth shape body.
However, the above-described pre-lip type has the following problems: the outer end face of the connecting rib separating the upper tire crown rubber channel from the lower tire crown rubber channel in the pre-opening type is coplanar with the outer end face of the pre-opening type, the thickness of an opening in the outer opening type (namely a sample plate for extruding rubber materials) is small, only a small gap exists between the outlet of the upper tire crown rubber channel and the outlet in the outer opening type, the upper tire crown rubber is difficult to extrude, meanwhile, the upper tire crown rubber occupies a large specific gravity in the rubber materials, the flowing pressure of the upper tire crown rubber is large, the upper tire crown rubber is accumulated in the channel, the pressure borne by the connecting rib is large, and the long-time use of the pre-opening type is not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a five compound treads of tire extrude mouthful type in advance convenient to tread rubber extrudes, will go up crown rubber and the inboard indentation one end distance of the inboard of passageway of isolation muscle between the crown rubber down for go up crown rubber and combine mutually with crown rubber down in the passageway, and outflow that can be smooth.
For the purpose of the utility model, the following technical scheme is adopted for implementation:
the utility model provides a five compound treads of tire extrude mouthful of type in advance convenient to tread rubber extrudes, includes mouthful of type body in advance, is provided with a plurality of entrances in advance on the type body and is located just the back, and the export is located the sizing material passageway in front just, and the sizing material passageway includes: the upper tire crown rubber channel and the lower tire crown rubber channel are located right in front and distributed up and down, the upper tire crown rubber channel and the lower tire crown rubber channel are separated through a transverse rib, and the end face of the transverse rib retracts a certain distance towards the inside of the pre-opening body.
Preferably, the distance of indentation is 10 to 70mm.
Preferably, the sizing lane further comprises: the conductive adhesive channel is positioned in the middle of the right upper inclined plane, the wing adhesive channels are positioned on the left side and the right side of the right upper inclined plane, and the base adhesive channel is positioned on the right lower inclined plane; the conductive adhesive channel and the upper tire crown adhesive channel are separated by the upper isolation rib which extends transversely, so that the conductive adhesive channel forms an independent channel.
Preferably, the upper portion of the conductive paste channel is provided with an opening opened upward.
Preferably, the outlet of the conductive adhesive channel is located in the middle of the pre-opening type body in the left and right direction, the thickness of the outlet is 20-40mm, and the width of the outlet is 20-50mm.
Preferably, the thickness of the upper isolation rib is 2 to 10mm.
Preferably, the outlet positions of the left wing rubber channel and the right wing rubber channel are bilaterally symmetrical about the center line of the pre-mouth body, and the outlet positions of the upper crown rubber channel, the lower crown rubber channel and the base rubber channel are bilaterally symmetrical about the center line of the pre-mouth body.
Preferably, the lower crown rubber channel and the base rubber channel are separated by a lower isolation rib, and the thickness of the lower isolation rib is 1 to 5mm.
Preferably, the outlet thickness of the upper crown rubber channel is 4 to 10mm, the outlet thickness of the lower crown rubber channel is 1 to 5mm, and the outlet thickness of the base rubber channel is 1 to 5mm; the transverse widths of the upper crown rubber channel, the lower crown rubber channel and the base rubber channel are 100 to 400mm; oblique isolation ribs are arranged at the joints of the sidewalls at the left and right sides of the upper tire cap rubber channel and the lower tire cap rubber channel and the inner side walls of the wing rubber channels, and the included angle between each oblique isolation rib and the corresponding lower isolation rib ranges from 10 degrees to 80 degrees.
To sum up, the utility model has the advantages that make when the play gum mouth on the outer mouthful type less (especially to the very thin condition of tread rubber), go up the tread rubber and can combine with tread rubber down in the passageway, can have more unobstructed passageway to flow out, and not died by stifled.
Drawings
Fig. 1 is a perspective view of a pre-lip type.
Fig. 2 is a schematic structural view of the front face of the pre-die.
Fig. 3 is a schematic structural view of the back surface of the pre-die.
Fig. 4 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 2.
Fig. 5 is a partially enlarged view of fig. 5 at B.
Fig. 6 is a schematic structural view of the back surface of the outer die.
Fig. 7 is a schematic structural view of the outer mouth-shaped front surface.
Fig. 8 is a schematic diagram of exploded structures of an outer die and an insert.
FIG. 9 is a schematic view of the insert structure.
FIG. 10 is a schematic diagram of a dual-composite structure.
Fig. 11 is a schematic diagram of a triple-composite structure.
Fig. 12 is a schematic structural diagram of the four composite tape conductive adhesives.
FIG. 13 is a schematic structural view of a four composite crown bi-layer.
Fig. 14 is a schematic diagram of a quintuplex structure.
Detailed Description
As shown in fig. 1, an extrusion pre-die for five-composite tread of a tire comprises a pre-die body, wherein the pre-die body is trapezoidal when viewed from the side, and for convenience of the subsequent description of the relative position of the structure on the pre-die body, the surface of the pre-die body is firstly named as follows: the area located in the middle of the front face of the pre-mouth-shaped body is defined as a front face, the area located at the upper part of the front face of the pre-mouth-shaped body is defined as an upper inclined face, the area located at the lower part of the front face of the pre-mouth-shaped body is defined as a lower inclined face, and the area located at the back of the pre-mouth-shaped body is defined as a back face.
As shown in fig. 2 and 3, a conductive adhesive channel 1 extending in the front-rear direction is provided in the middle of the upper inclined plane, and an opening is provided in the upper portion of the conductive adhesive channel 1, the inlet of the conductive adhesive channel 1 is located in the upper portion of the rear face, and the outlet is located in the middle of the front face. The conductive adhesive channel 1 is an inclined plane with a higher back side and a lower front side when viewed from the side of the pre-die body. Due to the design diversity of the position of the conductive adhesive, the thickness of an outlet of a conductive adhesive channel 1 is 20 to 40mm, and the width is set to 20 to 50mm. According to the position of a tire groove, the design requirement that the distance from the center of the tread rubber is within 0-50mm is met, and a wide groove with the width of 1-5 mm of the conductive rubber is embodied in an outer opening type 9.
As shown in fig. 2 and 3, a wing glue channel 2 extending in the front-rear direction is provided on both the left and right sides of the right upper inclined plane, and the left and right wing glue channels 2 are symmetrically provided. The upper part of the wing rubber channel 2 is provided with an opening which is opened upwards, the inlet of the wing rubber channel 2 is positioned at the upper part of the right back, and the outlet is positioned at the middle part of the right front. The wing glue channel 2 gradually gets closer to the middle from back to front when seen from the front of the pre-mouth body. The wing glue channel 2 is an inclined plane with a higher back side and a lower front side when viewed from the side of the pre-mouth-shaped body.
As shown in fig. 2 and fig. 3, an upper crown rubber channel 3 and a lower crown rubber channel 4 which are distributed up and down and are isolated from each other are arranged on the front surface, the upper crown rubber channel 3 is located below the conductive rubber 1, and the left side and the right side of the upper crown rubber channel 3 and the lower crown rubber channel 4 are located between the left wing rubber channel 2 and the right wing rubber channel 2. The upper crown rubber channel 3 and the lower crown rubber channel 4 extend from back to front, the respective inlets are positioned in the middle of the front back and distributed up and down, and the respective outlets are positioned in the middle of the front back and distributed up and down. The outlet thickness of the upper crown rubber channel 3 is 4-10mm, and the outlet thickness of the lower crown rubber channel 4 is 1-5mm. From the front of the pre-mouth body, the upper crown rubber channel 3 and the lower crown rubber channel 4 gradually get close to the middle from back to front. Seen from the side surface of the pre-opening body, the upper crown rubber channel 3 is an inclined plane with a higher rear side and a lower front side, and the lower crown rubber channel 4 is an inclined plane with a lower rear side and a higher front side.
As shown in fig. 2 and 3, a base rubber channel 5 extending in the front-rear direction is provided on the just-under slope, the base rubber channel 5 is located below the lower crown rubber channel 4, and the left and right sides of the base rubber channel 5 are located between the left and right wing rubber channels 2. The inlet of the base glue channel 5 is positioned at the lower part of the front surface, the outlet is positioned at the lower part of the front surface, and the thickness of the outlet is 1 to 5mm. The base glue channel 5 gradually converges from the rear to the front towards the middle, seen from the front of the pre-lip body. The base glue channel 5 is a slope with a lower back side and a higher front side, seen from the side of the pre-die body.
As shown in fig. 2, when viewed from the front of the pre-die body, the conductive adhesive channels 1 are arranged at the upper middle position, and the wing adhesive channels 2 are symmetrically arranged at both sides of the upper middle position. The upper crown rubber channel 3, the lower crown rubber channel 4 and the base rubber channel 5 are sequentially arranged in parallel at the upper, middle and lower positions, and the central lines are bilaterally symmetrical.
As shown in fig. 4 and 5, the conductive adhesive channel 1 and the upper crown rubber channel 3 are separated by an upper isolation rib 6, and the thickness of the upper isolation rib 6 is 2 to 10mm. The upper tire crown rubber channel 3 and the lower tire crown rubber channel 4 are separated by a transverse rib 7, and the thickness of the transverse rib 7 is 1-5 mm. The lower crown rubber channel 4 and the base rubber channel 5 are separated by a lower isolation rib 8, and the thickness of the lower isolation rib 8 is 1-5 mm. The transverse widths of the upper crown rubber channel 3, the lower crown rubber channel 4 and the base rubber channel 5 are 100-400mm according to the design requirements of different widths of the molded rubber for the upper crown rubber, the lower crown rubber and the base rubber cavity. The oblique isolation ribs 10 are arranged at the joints of the sidewalls at the left and right sides of the upper tire cap rubber channel 3 and the lower tire cap rubber channel 4 and the inner side walls of the wing rubber channel 2, the oblique isolation ribs 10 determine the angle of an interface between the upper wing rubber and the main rubber of the tread rubber, and the included angle between the oblique isolation ribs 10 and the lower isolation ribs 8 is 10 to 80 degrees.
After adopting above-mentioned structure, have the following effect: the conductive adhesive channel 1 is an upward opening channel in an independent opening mode and is positioned on the right upper inclined plane of the pre-opening type body, so that the position requirements of different conductive adhesives with right deviation are met to the maximum extent. More specifically, because the conducting resin need be located the decorative pattern piece after the shaping and just can realize electrically conductive effect, and the decorative pattern piece position of different tires has the difference to it for need adjust the position of conducting resin when the conducting resin passes through the conducting resin passageway, the utility model discloses set up the conducting resin passageway on just going up the inclined plane, make only need to change inserting on the outer mouthful of type, just can change the position of conducting resin, thereby can adapt to the tire of different demands.
The utility model has the advantages that not only can extrude five compound tire tread, can also be fit for extruding four compound, three compound, two compound tire treads, more importantly the conducting resin position can accomplish nimble skew requirement by different decorative patterns, can satisfy the complicated tire design of different compound forms, different performance requirements.
The structure of the outer die 9 will be described briefly below, and as shown in fig. 7 and 8, the outer die 9 includes an upper outer die 91 and a lower outer die 92 which are separable from each other, a glue outlet 93 is formed at a joint of the upper outer die 91 and the lower outer die 92, and the thickness of the glue outlet 93 is generally 5 to 15mm. As shown in fig. 8 and 9, in order to control the position of the conductive adhesive, a mounting groove 911 is provided on the upper outer mouth-shaped body 91, an insert 94 is detachably mounted in the mounting groove 911, a drainage hole 941 communicating with the conductive adhesive channel 1 is provided on the insert 94, a drainage channel 942 is provided at the end of the drainage hole 941, and the width of the drainage channel 942 is 1 to 5mm. The drainage channel 942 extends downward into the glue outlet 93. When the conductive adhesive is extruded, the conductive adhesive firstly enters the conductive adhesive channel 1, flows along the conductive adhesive channel 1, enters the drainage holes 941 of the insert 94, and finally enters the drainage channel 942, i.e. is compounded with other adhesives. When the position of the conductive adhesive relative to the center of the tread rubber needs to be changed, only different inserts 94 need to be replaced or the outer die 9 needs to be redesigned, so that different drainage channels 942 can be provided, and the position of the conductive adhesive is changed under the condition of sharing the pre-die.
Fig. 10 to 14 show treads of different compound forms made of the pre-split of the present invention.
Meanwhile, the tread rubber, namely the upper crown rubber and the lower crown rubber, is the rubber material with the largest flowing amount, so that the problems of unsmooth extrusion and large flowing pressure of the upper crown rubber and the lower crown rubber are solved in order to avoid the condition that the thickness of the outer-opening rubber outlet 93 is not enough to meet the requirement of the common entry of the upper crown rubber and the lower crown rubber, as shown in FIG. 5, the utility model discloses the horizontal muscle 7 that will be located between upper crown rubber channel 3 and the lower crown rubber channel 4 is to the inboard indentation one section distance of passageway, and the distance between horizontal muscle terminal surface of the inside indentation distance of horizontal muscle 7 and the preceding mouth type body terminal surface is preferably 10 to 70mm. The advantage of this design is that when the rubber outlet 93 on the outer die is small, especially for the case of very thin tread rubber, the upper tread rubber can be combined with the lower tread rubber in the channel, and a relatively smooth channel can be flowed out without being blocked. More specifically, the thickness of the entire rubber outlet 93 on the outer die is generally designed to be 5 to 8mm, while as mentioned above, the thickness of the transverse rib 7 on the pre-die is 1 to 5mm, and if the outer end surface of the transverse rib 7 and the outer end surface of the pre-die are coplanar as in the prior art, the upper tire crown rubber channel 3 is blocked by the rib and cannot smoothly flow out of the channel.
Claims (9)
1. The utility model provides a five compound treads of tire extrude mouth of a mouthful type in advance convenient to tread rubber is extruded, includes mouthful type body in advance, is provided with a plurality of entrances on the mouth type body in advance and is located just behind, and the export is located the sizing material passageway just in front, and the sizing material passageway includes: be located just ahead and become upper crown rubber passageway (3) and lower crown rubber passageway (4) that distribute from top to bottom, its characterized in that, separates through horizontal muscle (7) between upper crown rubber passageway (3) and lower crown rubber passageway (4), and the terminal surface of horizontal muscle (7) is to the inside indentation one section distance of mouthful type body in advance.
2. The tire penta-composite tread extrusion pre-opening form convenient for tread rubber extrusion as claimed in claim 1, wherein the indentation distance is 10 to 70mm.
3. A tire five compound tread extrusion pre-lip to facilitate tread rubber extrusion as in claim 1, wherein the rubber compound channel further comprises: the conductive adhesive channel (1) is positioned in the middle of the upper inclined plane, the wing adhesive channels (2) are positioned on the left side and the right side of the upper inclined plane, and the base adhesive channel (5) is positioned on the lower inclined plane; the conductive rubber channel (1) is separated from the upper crown rubber channel (3) through an upper isolation rib (6) extending transversely, so that the conductive rubber channel (1) forms a single channel.
4. A tire five-compound tread extrusion pre-lip for facilitating tread rubber extrusion as claimed in claim 3, wherein the upper part of the conductive rubber channel (1) is provided with an opening opened upward.
5. The tire five-composite tread extrusion pre-opening type convenient for tread rubber extrusion is characterized in that an outlet of a conductive rubber channel (1) is located in the middle of a pre-opening type body in the left-right direction, the thickness of the outlet is 20-40mm, and the width of the outlet is 20-50mm.
6. The tire five-composite tread extrusion pre-opening type convenient for tread rubber extrusion is characterized in that the thickness of the upper isolation rib (6) is 2-10 mm.
7. The tire five-compound tread extrusion pre-mouth shape convenient for tread rubber extrusion is characterized in that the outlet positions of the left wing rubber channel and the right wing rubber channel (2) are bilaterally symmetrical about the center line of the pre-mouth shape body, and the outlet positions of the upper crown rubber channel (3), the lower crown rubber channel (4) and the base rubber channel (5) are bilaterally symmetrical about the center line of the pre-mouth shape body.
8. The tire five-compound tread extrusion pre-opening type convenient for tread rubber extrusion is characterized in that the lower crown rubber channel (4) and the base rubber channel (5) are separated by a lower isolation rib (8), and the thickness of the lower isolation rib (8) is 1-5 mm.
9. The tire penta-composite tread extrusion ready-to-use form convenient for tread rubber extrusion of claim 3, wherein the outlet thickness of the upper tread rubber channel (3) is 4-10mm, the outlet thickness of the lower tread rubber channel (4) is 1-5mm, and the outlet thickness of the base rubber channel (5) is 1-5mm; the transverse widths of the upper crown rubber channel (3), the lower crown rubber channel (4) and the base rubber channel (5) are 100-400mm; oblique isolation ribs (10) are arranged at the joints of the sidewalls of the left side and the right side of the upper tire cap rubber channel (3) and the lower tire cap rubber channel (4) and the inner side wall of the wing rubber channel (2), and the included angle between each oblique isolation rib (10) and the corresponding lower isolation rib (8) is 10 to 80 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220838630.6U CN218453168U (en) | 2022-04-11 | 2022-04-11 | Five compound treads of tire extrude mouth of a mouthful types in advance convenient to tread rubber is extruded |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220838630.6U CN218453168U (en) | 2022-04-11 | 2022-04-11 | Five compound treads of tire extrude mouth of a mouthful types in advance convenient to tread rubber is extruded |
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| CN218453168U true CN218453168U (en) | 2023-02-07 |
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| CN202220838630.6U Active CN218453168U (en) | 2022-04-11 | 2022-04-11 | Five compound treads of tire extrude mouth of a mouthful types in advance convenient to tread rubber is extruded |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643689A (en) * | 2022-04-11 | 2022-06-21 | 中策橡胶集团股份有限公司 | Five compound treads of tire extrude mouth of a mouthful types in advance convenient to tread rubber is extruded |
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2022
- 2022-04-11 CN CN202220838630.6U patent/CN218453168U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643689A (en) * | 2022-04-11 | 2022-06-21 | 中策橡胶集团股份有限公司 | Five compound treads of tire extrude mouth of a mouthful types in advance convenient to tread rubber is extruded |
| CN114643689B (en) * | 2022-04-11 | 2024-06-25 | 中策橡胶集团股份有限公司 | Tire five-composite tread extrusion pre-orifice type convenient for tread rubber extrusion |
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