CN217862713U - Tire five-composite tread extrusion pre-opening type capable of controlling position of conductive adhesive - Google Patents

Abstract

The utility model belongs to the technical field of the tire is made and specifically relates to a five compound treads of tire that can control conducting resin position extrude mouthful of type in advance, are provided with a plurality of sizing material passageways on the mouth of type body in advance, and the sizing material passageway includes: the wing rubber channels are positioned on the left side and the right side of the right upper inclined plane, the upper crown rubber channel and the lower crown rubber channel are positioned in front of the wing rubber channels and are distributed up and down, and the base rubber channel is positioned on the right lower inclined plane; the rubber material channel also comprises a conductive rubber channel positioned in the middle of the right upper inclined plane, and the conductive rubber channel is separated from the upper tire crown rubber channel through an upper isolation rib extending transversely, so that the conductive rubber channel forms an independent channel. 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 different compound forms, different performance requirement complicated tire requirement.

Description

Tire five-composite tread extrusion pre-opening type capable of controlling position of conductive adhesive

Technical Field

The utility model belongs to the technical field of the tire is made and specifically relates to a five compound treads of tire that can control conducting resin position extrude mouthful type in advance.

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 the wing rubber also needs to have good viscosity, so that the good tire needs to have excellent design, mature and good process flow and manufacturing, and further needs to have 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 compounding forms cannot be met according to the development design of new products, and the development of tire enterprises is hindered.

Although there are related patents disclosing five-compound pre-open shapes, for example, the chinese patent (publication No. CN111267319A, published as 20200612) discloses a five-compound tire tread extrusion pre-open 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-open shape.

However, the above-described pre-lip type has the following problems: as disclosed in the above patent, the conductive paste channel is located at the center of the pre-die body, which makes the position of the conductive paste unable to be adjusted, because once the position of the conductive paste is adjusted, the positions of other glue materials are affected at the same time, so that the position of the conductive paste formed by the pre-die is fixed, that is, the conductive paste may not be on the blocks (for example, in the grooves) after forming, which will not conduct electricity. More specifically, the pre-opening type can only be used for a tire with conductive adhesive just on the pattern block after a certain type of tire is formed, but cannot be used commonly for other types of tires, and the pre-opening type with different types needs to be replaced correspondingly, that is, the pre-opening type is not high in universality.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model aims at providing a five compound treads of tire that can control conducting resin position extrude mouthful of type in advance, set up an solitary conducting resin passageway on the inclined plane just going up of mouthful type in advance for when the sizing material is extruded, can select the position of conducting resin on the tread, and can not influence the extrusion of other sizing materials.

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 that can control conducting resin position extrude mouthful type in advance, includes mouthful type body in advance, is provided with a plurality of entrances on the type body in advance and is located directly behind, and the export is located the sizing material passageway directly in front, and the sizing material passageway includes: the wing rubber channels are positioned on the left side and the right side of the right upper inclined plane, the upper crown rubber channel and the lower crown rubber channel are positioned in front of the wing rubber channels and are distributed up and down, and the base rubber channel is positioned on the right lower inclined plane; the outlet positions of the left wing rubber channel and the right wing rubber channel are bilaterally symmetrical about the central line of the pre-mouth body, the outlet position of the upper crown rubber channel, the outlet position of the lower crown rubber channel and the outlet position of the base rubber channel are bilaterally symmetrical about the central line of the pre-mouth body,

the rubber material channel also comprises a conductive rubber channel positioned in the middle of the right upper inclined plane, and the conductive rubber channel is separated from the upper tire crown rubber channel through an upper isolation rib extending transversely, so that the conductive rubber 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-right direction, the thickness of the outlet is 20 to 40mm, and the width of the outlet is 20 to 50mm.

Preferably, the thickness of the upper isolation rib is 2 to 10mm.

Preferably, the upper tire crown rubber channel and the lower tire crown rubber channel are separated by a transverse rib, and the thickness of the transverse rib is 1-5mm.

Preferably, the end faces of the transverse ribs are recessed a distance into the interior of the pre-die body.

Preferably, the distance of indentation is 10 to 70mm.

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 not only can extrude five compound tire tread, can also be fit for extruding four compound, three compound, two compound treads, the nimble skew requirement can be accomplished to different decorative patterns in the conducting resin position of more importantly, can satisfy different compound forms, different performance requirement complicated tire requirement.

Drawings

Fig. 1 is a perspective view of a pre-lip.

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 tapes of the conductive adhesive.

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, a tire five-compound tread extrusion pre-opening type comprises a pre-opening type body, wherein the pre-opening type 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-opening type body, the surface of the pre-opening type body is firstly named in the following way: 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 rear 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 right in front of the wing rubber channel, the upper crown rubber channel 3 is positioned 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 positioned between the left wing rubber channel 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. The upper crown rubber channel 3 and the lower crown rubber channel 4 gradually get close to the middle from back to front when viewed from the front of the pre-mouth body. 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 located at the lower part of the front face, the outlet is located at the lower part of the front face, and the thickness of the outlet is 1-5 mm. 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-lip body.

As shown in fig. 2, when viewed from the front of the pre-die body, the conductive adhesive channels 1 are arranged in the upper middle position, and the wing adhesive channels 2 are arranged on both sides of the upper middle position and are arranged in bilateral symmetry. 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 rubber 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 to 5mm. 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 side walls 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, the oblique isolation ribs 10 determine the angle of a boundary surface 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 ranges from 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 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 difference for need adjust conducting resin's position when 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 insert 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 block 94, and finally enters the drainage channel 942, i.e. it 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.

Notice simultaneously that the tread rubber is the last crown rubber and the lower crown rubber is the rubber stock that the flow is the biggest, in order to avoid outer mouthful type to go out the condition that mouthful 93 thickness is not enough to satisfy last crown rubber and the common entering of lower crown rubber, solve and go up crown rubber and the problem that the crown rubber is extruded smoothly, flow pressure is big, as shown in fig. 5, the utility model discloses lateral reinforcement 7 to the inboard indentation one section distance of passageway that will be located between crown rubber passageway 3 and the lower crown rubber passageway 4, the distance between the horizontal muscle terminal surface of the inside indentation distance of lateral reinforcement 7 and the body terminal surface of the preceding mouthful of type 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 glue outlet 93 on the outer die is generally 5 to 15mm, 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 crown glue channel 3 will be blocked by the rib, and cannot smoothly flow out from the channel.

Claims (9)

1. The utility model provides a five compound treads of tire that can control conducting resin position extrude mouthful type in advance, includes mouthful type body in advance, is provided with a plurality of entrances on the type body in advance and is located directly behind, and the export is located the sizing material passageway directly in front, and the sizing material passageway includes: the wing rubber channels (2) are positioned on the left side and the right side of the right upper inclined plane, the upper crown rubber channel (3) and the lower crown rubber channel (4) are positioned in front of the wing rubber channels and are distributed up and down, and the base rubber channel (5) is positioned on the right lower inclined plane; the outlet positions of the left wing rubber channel and the right wing rubber channel (2) are bilaterally symmetrical about the central line of the pre-opening body, the outlet position of the upper crown rubber channel (3), the outlet position of the lower crown rubber channel (4) and the outlet position of the base rubber channel (5) are bilaterally symmetrical about the central line of the pre-opening body, and the tire is characterized in that,

the rubber material channel also comprises a conductive rubber channel (1) positioned in the middle of the right upper inclined plane, and the conductive rubber channel (1) is separated from the upper tire crown rubber channel (3) through an upper isolation rib (6) extending transversely, so that the conductive rubber channel (1) forms an independent channel.

2. The tire five-compound tread extrusion pre-opening type capable of controlling the position of the conductive adhesive is characterized in that the upper part of the conductive adhesive channel (1) is provided with an opening which is opened upwards.

3. The tire five-compound tread extrusion pre-opening type capable of controlling the position of the conductive adhesive is characterized in that an outlet of a conductive adhesive channel (1) is located in the middle of the left and right direction of a pre-opening type body, the thickness of the outlet is 20-40mm, and the width of the outlet is 20-50mm.

4. The tire five-compound tread extrusion pre-opening type capable of controlling the position of the conductive adhesive is characterized in that the thickness of the upper isolation rib (6) is 2-10mm.

5. The tire five-composite tread extrusion pre-opening type capable of controlling the position of the conductive adhesive as claimed in claim 1, wherein the upper tread rubber channel (3) and the lower tread rubber channel (4) are separated by a transverse rib (7), and the thickness of the transverse rib (7) is 1 to 5mm.

6. The tire five-compound tread extrusion pre-mouth capable of controlling the position of the conductive adhesive is characterized in that the end surface of the transverse rib (7) is retracted to a certain distance towards the interior of the pre-mouth body.

7. The tire five-compound tread extrusion pre-opening type capable of controlling the position of the conductive adhesive is characterized in that the retraction distance is 10-70mm.

8. The tire five-compound tread extrusion pre-opening type capable of controlling the position of the conductive adhesive 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 pre-opening type capable of controlling the position of the conductive adhesive is characterized in that the outlet thickness of an upper tread rubber channel (3) is 4-10mm, the outlet thickness of a lower tread rubber channel (4) is 1-5mm, and the outlet thickness of a 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.

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