WO2012000145A1 - 一种新型轮胎及其生产工艺 - Google Patents

一种新型轮胎及其生产工艺 Download PDF

Info

Publication number
WO2012000145A1
WO2012000145A1 PCT/CN2010/001412 CN2010001412W WO2012000145A1 WO 2012000145 A1 WO2012000145 A1 WO 2012000145A1 CN 2010001412 W CN2010001412 W CN 2010001412W WO 2012000145 A1 WO2012000145 A1 WO 2012000145A1
Authority
WO
WIPO (PCT)
Prior art keywords
ply
layer
belt
cord
sides
Prior art date
Application number
PCT/CN2010/001412
Other languages
English (en)
French (fr)
Inventor
周明良
Original Assignee
杭州零度轮胎技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 杭州零度轮胎技术有限公司 filed Critical 杭州零度轮胎技术有限公司
Publication of WO2012000145A1 publication Critical patent/WO2012000145A1/zh

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08Building tyres
    • B29D30/20Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/30Applying the layers; Guiding or stretching the layers during application
    • B29D30/3028Applying the layers; Guiding or stretching the layers during application by feeding a continuous band and winding it helically, i.e. the band is fed while being advanced along the drum axis, to form an annular element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02Carcasses
    • B60C9/04Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C9/08Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship the cords extend transversely from bead to bead, i.e. radial ply
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D2030/385Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre made by winding and joining a continuous reinforced rubber band onto a mandrel, to obtain a tubular article as an intermediate element in the manufacture of the insert
    • B29D2030/386Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre made by winding and joining a continuous reinforced rubber band onto a mandrel, to obtain a tubular article as an intermediate element in the manufacture of the insert the tubular article being cut to obtain a flat, single-layer insert
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02Carcasses
    • B60C2009/0269Physical properties or dimensions of the carcass coating rubber
    • B60C2009/0284Thickness

Definitions

  • the present invention relates to a tire, and more particularly to an automobile tire and a production process thereof. Background technique
  • the layers of the carcass cord are arranged in a meridian direction from one bead to the other.
  • the internal pressure of the tire generates less than half of the stress on the carcass cord, and all the cords are arranged in the direction of the force, and each cord is fully stressed;
  • the radial tire belt is the main force-bearing component, which bears 60-75% of the total tension of the tire internal pressure
  • the belt layer is the most important part of the radial tire, which largely determines the deformation of the carcass. It directly affects the rigidity of the tread, so it has an important influence on the wear resistance, driving stability and comfort of the tire.
  • current belt cords generally have an angle of 15-20 degrees from the tire circumferential direction.
  • the rigidity of the seed mid-tire tire is still greatly limited.
  • the belt layer should adopt more layers of structure to compensate for the rigidity defects. This increases both the cost and the weight of the tire, which is a significant limitation on the use of radial tires in light vehicles.
  • Pirelli has designed a zero-degree belt radial tire with two layers along the shoulders of the belt. An annular reinforcing belt bundle which is formed by overlapping two turns in a circumferential direction. Compared with the conventional structural belt radial tire, it has the advantages of reducing rolling resistance and saving fuel; reducing heat generation, durability of the tire, stable tread and improving the lateral rigidity of the tire.
  • CN1615229 discloses a pneumatic radial tire for a construction vehicle, a belt layer thereof and a method of manufacturing the same, wherein a cord bundle is used to form a width tread width At least one of 0. 25-0. 5 times of the belt bundle, each cord bundle being formed of a plurality of steel cords arranged parallel to each other at substantially equal intervals, the cord bundle and the steel curtain in the vicinity thereof
  • the distance between the wires is greater than the distance between the steel cords in the cord bundle, the angle of intersection of the steel cord with respect to the equatorial plane of the tire is set to 0-15°, and the diameter of the steel cord is set to In the range of 1. 0-6.
  • the cord bundle is formed by coating the cords forming the cord bundle with a rubber layer, the cords are passed through the insert to be integrally coated.
  • the rubber thereby preventing the separation occurring at the ends of the steel cord, thereby improving the durability of the belt.
  • the above-mentioned zero-degree angular belt layer is stable in the shape of the tire circumferential direction, and does not expand and contract even during the high-pressure vulcanization process. Therefore, after vulcanization, the belt layer forms a cylindrical structure, and during the use of the tire In the middle, the stress on both shoulders is concentrated and the wear is large, and the colloids on both sides of the belt are easily cracked and the cords are exposed.
  • the belt layer will stretch due to the middle portion during the vulcanization process, and its cross section will produce an arc shape, that is, the structure of the intermediate bulge, so that the colloids on both sides of the belt layer are not easily cracked, but in the zero-degree belt tire
  • the belt layer is relatively rigid and its parts are hardly stretched during the vulcanization process.
  • the invention mainly solves the technical problem that the two layers of cords in the double-layer steel cord carcass in the prior art are easy to wear, and provides a novel tire in which the two layers of the carcass are not easy to wear and the carcass is slowly degraded.
  • the present invention also provides a process for processing a tire of a double-layer steel cord carcass so that it can be prevented from being worn between the two layers of cords without breaking between the two layers of cords.
  • a novel tire comprising a carcass, a buffer layer, a belt layer, a sidewall and a tread, characterized in that the carcass comprises an inner ply
  • the slabs of the slabs are 0. 8-1.
  • the ends of the inner and outer plies are alternately arranged with each other.
  • the program changed the existing technology
  • the structure of the double cord in the carcass ply is adopted, two layers of plies are used, and each layer of the ply is provided with a structure of a cord, and a layer of colloid is disposed between the two plies to realize each ply.
  • the cords are not in direct contact, and even if long-term relative motion is taken into consideration, direct contact will not occur, which improves the retardation of the carcass.
  • the inner ply layer and the outer ply layer are provided with flanges on both sides thereof, and the flanges are outwardly turned over the outer ply along the wire loop, and the two sides of the inner ply are respectively turned over the outer ply Long sides
  • the two sides of the inner ply layer are respectively wrapped around the outer ply layer, and the inner ply is provided with an inner sealing layer, and the inner ply is provided on the inner side sealing layer. Encapsulation between the outer ply and the outer ply.
  • the cuff In order to prevent the flanging on both sides of the ply from falling off during use, the cuff is directly wrapped directly with the sidewall by encapsulation, but since the present invention has two plies, if it is still wrapped directly with the rubber, In use, due to stress concentration, it is easy to have the problem of flanging degumming, and this solution effectively solves this problem by wrapping the outer ply over the edge of the inner ply, and then wrapping the inner ply by the rubber wrap. Make the flange more secure.
  • the cord of the belt layer is spirally wound by 1-5 cords in the tire axial direction, wherein the middle portion of the belt layer is provided with a reinforcing portion, and the reinforcing portion is provided with a double or three curtain line.
  • the middle part of the belt is the main force-receiving part, and the force on both sides is small. From the aspects of ensuring strength and saving cost, the middle part of the belt layer is set as the reinforcing part, and the double-layer or three-layer cord is passed. achieve.
  • the width of the belt reinforcing portion is (1/2) - (3/5) of the total width of the belt layer, and the width of the cord on both sides of the reinforcing portion is respectively the total width of the belt layer (1) /5) - (1/4).
  • This scheme is designed for the force of the belt, which accounts for the maximum force of the belt (1/2) - (3/5).
  • the 1-5 cords are arranged side by side to form a cord bundle, the cord bundle is coated with a layer of rubber on the outside, and the cord bundle of the double cord portion of the belt reinforcement portion is partially overlapped from the second loop. On the last lap.
  • This solution makes the processing of the belt layer and the processing of the reinforcement of the double-layer cord more convenient.
  • the cords of the respective loops are inclined and attached to each other, when used on the uneven ground, an elastic displacement occurs between the loops of the loops, so that the contact surface of the tread and the ground is larger, thereby improving the grip performance. And this program It also greatly simplifies the processing.
  • the 1-5 cords are arranged side by side to form a cord bundle, the cord bundle is coated with a layer of rubber on the outside, and the second loop portion of the cord bundle of the three-layer cord portion of the belt reinforcement is overlapped with the first The circle, partially overlapping the last two laps from the third lap.
  • This structure makes the processing of the reinforcing portion of the three-layer cord more convenient.
  • the cords of the respective loops are inclined and attached to each other, when used on the uneven ground, an elastic displacement occurs between the loops of the loops, so that the contact surface of the tread and the ground is larger, thereby improving the grip performance.
  • this solution also greatly simplifies the processing technology.
  • the cords are arranged in an arch shape, and the convex faces of the arches face outward. Since the stresses on both shoulders of the crown are concentrated and the wear is large, it is easy to cause the colloids on both sides of the belt to crack and the cords to be exposed.
  • the cords are arranged in an arch shape, making it less prone to stress. The concentrated and exposed cords effectively increase the service life of the tires.
  • the belt cord is a steel wire or an aramid fiber.
  • the steel cord has high strength and good wear resistance, and the aramid cord is also very strong in strength under the condition that the carcass is a steel cord, and the flexibility and flex resistance are good.
  • the surface can be used in contact with the ground to obtain a larger contact area with the ground, thereby improving the grip performance.
  • the tire cords are made of rayon cords and the belt cords are in the form of steel cords. This scheme is a major innovation of semi-steel tires.
  • the aromatic polyamide comprises the following:
  • a novel tire process comprising the following steps:
  • Step one preparing a forming drum, and affixing an inner sealing layer on both sides of the forming drum;
  • Step 2 attaching an inner ply on the inner sealing layer such that the inner sealing layer is at both ends of the inner ply, and the inner ply is divided into a main body portion and a cuff portion;
  • Step 4 Applying an outer ply on the colloidal interlayer, the cords of the inner and outer plies are interlaced with each other, and both ends of the outer ply are 3-10 mm shorter than the inner ply, and the outer ply is divided into a main part and a flange.
  • both ends of the outer ply are 3-10 mm shorter than the ends of the outer ply, after the carcass is formed, the two sides of the inner ply can be respectively wrapped around the outer ply;
  • Step 5 fixing the traveler at the intersection of the two ends of the outer portion of the outer ply and the flange portion, and fixing the apex on the traveler;
  • Step six the forming drum is closed inward from both sides, the carcass is formed, and the shape of the carcass is locked by a locking device, the outer ply wraps the bead ring and the apex, and the flanging portions on both sides of the inner ply will respectively Wrap the sides of the outer ply on both sides;
  • Step 7 affixing a layer of rubber between the inner ply portion and the outer ply portion; step VIII, attaching the sidewall to both sides of the carcass, and affixing a buffer layer in the middle of the carcass;
  • Step IX the carcass and the belt are closed, the top layer of the rubber layer is attached to the belt layer, and the rubber layer is attached to the rubber layer on the crown layer. Tread, complete the embryo;
  • Step 10 The embryo is placed in a vulcanizer for pressurization and vulcanization.
  • the processing process of the ply is as follows:
  • Step one selecting a ply processing drum according to the tire size, and applying a layer of the tire cloth according to the size of the ply on the processing drum;
  • Step two spirally winding the ply cord on the tire cloth
  • Step three applying a layer of tire cloth on the outer side of the spirally wound cord to form a cylindrical ply layer
  • the side of the cylindrical ply is cut along the spiral cutting line at an oblique angle so that the cylindrical ply expands into a sheet ply.
  • the traditional ply processing technology and processing equipment are very complicated, requiring an expensive spindle room, and then evenly distributing and attaching the cord between the two layers of the tire cloth.
  • the precision of the design is very high and the volume is very large.
  • the cost is extremely expensive.
  • the ply produced is of a large size, and when the ply is used to produce a tire, it is also cut to a desired size while generating a large amount of waste. It is very wasteful both in terms of material cost and labor cost.
  • a cord-shaped ply is formed by winding the cord and the tire cloth on the processing drum, with a tilt The angle is cut along the spiral cutting line, so that the cylindrical ply is unfolded into a sheet ply. Since the cord is spirally wound, the cord is basically in the tube. After the circumferential direction of the ply, i.e., after deployment, the cord is substantially parallel to both sides of the sheet ply.
  • This type of processing requires only a small amount of cord to complete (the number of cords depends on the simultaneous winding of the cord). The process and equipment are very simple, and no waste is produced, and the tension of each cord is very uniform.
  • the sheet-like ply has a cutting opening as both sides of the ply in use, and the other two sides abut each other to form a cylindrical structure, which is provided as an inner and outer ply, respectively, on the forming drum.
  • the connecting line is formed as a spiral, and all the cords are inclined and no more corners are produced.
  • the inner and outer plies when the inner and outer plies are butted, one of them has the inner side of the original cylindrical ply as its inner side, and the other ply has the outer side of the original cylindrical ply as its inner side.
  • the butt direction of the two plies is reversed, and the cords of the plies produced after the butt are inclined in the opposite direction, so that the cords of the two plies are effectively interdigitated.
  • the processing process of the belt layer is as follows - step one, preparing a belt forming drum according to the size requirement of the belt layer, the forming drum is provided with an annular protrusion, the cross section of the annular protrusion For the bow structure;
  • Step two spirally winding the cord through the hanging glue on the annular protrusion of the forming drum;
  • Step 3 Apply a glue layer to the wound cord.
  • the zero-angle belt layer is stable due to its shape in the circumferential direction of the tire, it does not expand and contract even during high-pressure vulcanization. Therefore, after vulcanization, the belt layer forms a cylindrical structure, and during the use of the tire In the middle, the stress on both shoulders is concentrated and the wear is large, and the colloids on both sides of the belt are easily cracked and the cords are exposed.
  • the present scheme provides an annular projection on the belt forming drum, and when the cord is wound on the forming drum, the distribution section of the cord forms an arc, so that the two layers of the belt The stress concentration on the side is reduced, and it is difficult to expose the cord after being worn on both sides of the carcass.
  • the cords are arranged side by side, the cord bundle is formed by hanging glue, and the cord passes through the cord bundle
  • the form is spirally wound around the annular projection. The winding of the cord bundle formed by a plurality of cords can effectively improve the production efficiency.
  • the belt forming drum is continuously rotated, and while rotating, the cord bundle is driven along the belt forming drum by a toggle mechanism, and the belt is bundled.
  • the distance of the belt driving belt to drive the belt is greater than or equal to the width of the cord bundle.
  • the belt forming drum rotates once every turn.
  • the mechanism drives the belt traces to have a distance smaller than the width of the cord bundle such that the second loop of the reinforcing portion partially overlaps the previous loop, or the second loop portion of the reinforcing portion overlaps the first loop, starting from the third loop Partially overlapped over the last two laps.
  • the invention has the beneficial effects of solving the problem that the spacing between the two layers of cords in the double-layer steel cord carcass existing in the prior art is too small or difficult to control, mutual wear is easy, and the ply of the ply is formed. It is easy to fall off, and the two sides of the belt are prone to technical problems such as the exposed cord and insufficient strength in the middle of the belt. At the same time, in the process, the technical process of the ply is complicated, the cost is high, and the waste is more than one.
  • the spacing between the two layers of cords is reasonable, the spacing is easy to control, the mutual pitting is not easy to occur, the ply and the flanging are not easy to fall off, the belts on the shoulders of the belt are not exposed, and the tires with reasonable beam strength distribution are Its craft.
  • the invention has the characteristics of reasonable structure, simple process, low cost, high efficiency and long service life.
  • Figure 1 is a schematic structural view of a tire of the present invention
  • Figure 2 is a process view of the carcass of the present invention before it is closed;
  • Figure 3 is a structural view of the carcass of the present invention after being closed
  • Figure 4 is a process view of the carcass ply of the present invention.
  • Figure 5 is a view of a sheet-like ply formed after cutting of the carcass ply of the present invention
  • Figure 6 is a front and back curling process diagram of the carcass ply of the present invention.
  • Figure 7 is a schematic view showing the structure of a belt forming drum of the present invention
  • Figure 8 is a cross-sectional view of the drawing A at A- ;
  • Figure 9 is a schematic structural view of a belt layer of Embodiment 1;
  • Figure 10 is a schematic structural view of a belt layer of Embodiment 2.
  • FIG 11 is a schematic view showing the structure of the colloidal spacer of the present invention. detailed description
  • the present invention is a novel tire comprising a carcass, a buffer layer 9, a belt layer 10, a sidewall and a tread 11, the carcass including the inner ply 1 And the outer ply 3, the inner ply layer and the outer ply layer are provided with flanges on both sides thereof, and the cuffs are outwardly turned over the outer ply 3 along the wire loop 7, and the inner ply is turned on both sides 1-1 is 7mm longer than the flanging 3-1 on both sides of the outer ply, and the flanks 1-1 of the inner ply are respectively wrapped around the outer ply 3-1, and the inner ply is turned on both sides.
  • An inner seal layer 8 is provided at the side, and the two sides of the inner ply layer are wrapped by a rubber 5 provided between the inner seal layer 8 and the outer ply layer 3.
  • the inner and outer plies are all steel cords, and a colloidal interlayer 2 is arranged between the inner and outer plies.
  • the colloidal compartment is on both sides and the middle part of the carcass, and its thickness is lmm, and the ends of the two sides are smooth and excessive. 0 mm, the cords of the inner and outer plies are arranged alternately with each other.
  • the cords are arranged in an arch shape, the convex surface of the arch is outward, and the middle portion of the belt layer 10 is provided with a reinforcing portion occupying 1/2 of the total width of the belt layer.
  • the reinforcing portion is provided with a double-layer cord, and the cord of the belt layer is formed by spirally winding a cord bundle composed of three steel cords in a tire axial direction, and the cord bundle is coated with a layer of rubber on the outer side.
  • the cord bundle of the double cord portion of the belt reinforcement portion partially overlaps the previous loop from the second loop.
  • a new tire process comprising the following steps (Fig. 2, Fig. 3, Fig. 11):
  • Step one preparing the forming drum 12, and affixing the inner sealing layer 8 on both sides of the forming drum;
  • Step 2 the inner ply 1 is attached to the inner sealing layer such that the inner sealing layer 8 is in the inner ply 1 At both ends, the inner ply is divided into a main body portion and a flange portion;
  • Step 3 the inner layer 2 is adhered to the inner layer 2, and the colloidal layer 2 is overlapped with the main part of the inner ply 1 .
  • the thickness of the colloidal layer is 1 mm, and the ends of both sides are smoothly over 0 mm, and the colloid is separated.
  • the middle of the layer is provided with an arcuate protrusion 2-1 having a length of 100 mm and a middle portion having a thickness of 1 mm;
  • Step 4 the outer ply 3 is attached to the colloidal interlayer, and the cords of the inner and outer ply layers are interlaced with each other, and the outer ply 3 has both ends shorter than the inner ply of the inner ply, and the outer ply is divided into a main part and turned over.
  • the two sides of the inner ply layer can be respectively wrapped around the outer ply layer;
  • Step 5 Fix the traveler 7 at the intersection of the two ends of the outer ply and the flange portion, and fix the apex on the traveler 6; ' '
  • Step six the forming drum is closed inward from both sides, the carcass is formed, and the shape of the carcass is locked by a locking device, the outer ply wraps the bead ring and the apex, and the flanging portions on both sides of the inner ply will respectively Wrap the sides of the outer ply on both sides;
  • Step 7 affixing a layer of rubber 5 between the inner ply portion and the outer portion of the outer ply; step VIII, attaching the sidewall to both sides of the carcass, and affixing a buffer layer 9 in the middle of the carcass;
  • Step IX the carcass and the belt layer 10 are closed together, the top layer of the rubber layer is attached to the belt layer, and the tread surface is applied on the rubber layer of the crown layer to complete the fetal embryo;
  • Step 10 The embryo is placed in a vulcanizer for pressurization and vulcanization.
  • Step one selecting a ply processing drum according to the tire size, and applying a layer of the tire cloth 17 according to the size of the ply on the processing drum;
  • Step two spirally winding the ply cord 16 on the tire cloth 17;
  • Step three a layer of the tire cloth 17 is attached on the outer side of the spirally wound cord to form a cylindrical ply 18;
  • the side of the cylindrical ply 18 is cut along the spiral cutting line 19 at an oblique angle so that the cylindrical ply 18 is unfolded into the sheet ply 20.
  • the sheet ply 20 is cut at the time of use.
  • the other two sides abut each other to form a cylindrical structure, which is respectively formed as an inner and outer ply on the forming drum, wherein the inner ply has the inner side of the original cylindrical ply as its inner side, the outer ply
  • the layer has the outer side of the original cylindrical ply as its inner side, and the cord formed by the two forms an opposite inclination angle.
  • the processing of the belt layer is as follows (Fig. 7, Fig. 8, Fig. 9):
  • Step one preparing a belt forming drum according to the size requirement of the belt layer, the belt forming drum is provided with an annular protrusion 14, and the annular protrusion has an arcuate cross section;
  • a plurality of cords passing through the glue are spirally wound side by side on the annular protrusion of the forming drum.
  • the belt forming drum is continuously rotated, and while being rotated, a dial is made
  • the moving mechanism drives the cord bundle to be axially tracked along the belt forming drum, and each time the belt forming drum rotates, the pulling mechanism drives the belt trace to be greater than or equal to the width of the cord bundle, when wound to the belt In the reinforcing portion of the layer, each time the belt forming drum rotates, the pulling mechanism drives the belt to be traced at a distance smaller than the width of the cord bundle, so that the second loop from the reinforcing portion partially overlaps the previous circle;
  • Step 3 Apply a glue layer to the wound cord.
  • Example 2
  • Embodiment 1 is based on Embodiment 1, wherein the reinforcing portion 10-1 of the belt layer 10 is a three-layer cord, and the second loop portion of the cord bundle portion of the three-layer cord portion of the belt reinforcing portion is overlapped with the first The circle, from the third circle, partially overlaps the last two circles.
  • the belt forming drum continuously rotates, and while rotating, the cord bundle is driven along the belt forming drum axially by a toggle mechanism, Each time the beam forming drum rotates, the distance of the belt driving belt to drive the belt is greater than or equal to the width of the cord bundle.
  • the belt forming drum rotates one turn, dialing
  • the moving mechanism drives the belt trace to be smaller than the width of the cord bundle, so that the second loop portion of the reinforcing portion overlaps the first loop, and partially overlaps the upper two loops from the third loop to reach the reinforcing three-layer cord.
  • Embodiment 1 is based on Embodiment 1 or Embodiment 2, wherein the cord of the belt layer 10 is an aromatic polyamide cord, and includes the following:
  • Aramid cords are also relatively strong in strength when the carcass is a steel cord, and the cost is much lower.
  • the invention has the advantages of reasonable spacing between the two layers of cords of the carcass, convenient control of the spacing, and mutual pitting loss, the ply and the flanging are not easy to fall off, and the shoulder cords of the belt layer are not exposed, the strength of the belt layer is not exposed. Reasonable distribution and other characteristics.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Tires In General (AREA)
  • Tyre Moulding (AREA)

Description

说 明 书
一种新型轮胎及其生产工艺 技术领域
本发明涉及一种轮胎, 尤其是涉及一种汽车轮胎及其生产工艺。 背景技术
现有的子午线轮胎的主要结构特点有以下几点:
1. 胎体帘线各层间由一胎圈到另一胎圈呈子午线方向排列。轮胎内压对胎 体帘线产生的应力比普通斜交轮胎少一半, 而且所有帘子线按照受力方 向排列, 每根帘线充分受力;
2. 子午线轮胎带束层是主要受力部件, 承受轮胎内压总伸张力的 60- 75%;
3. 由于胎体帘线子午排列, 能最大限度发挥帘线强力作用, 但胎体侧部因 层数少柔软且刚性不够,法向变形较斜交轮胎增大 25-30%,胎侧部位变 形大, 容易刺穿。
为了提高胎体的牢固度, 人们往往需要制造双层或多层帘线的胎体, 当帘 线为钢丝帘线时, 使用中, 其两层帘之间会相互摩擦, 由于钢丝帘线上只覆了 一层很薄的胶层, 在两层间的帘线相互摩擦一段时间后, 必然会出现钢丝帘线 上的胶层被磨损、 两层的钢丝帘线直接摩擦的后果, 此时, 钢丝帘线会出现很 大程度的磨损, 造成其强度不够, 两层帘布层之间出现断层等问题, 严重影响 胎体的质量。
根据上述的子午线轮胎的特点, 带束层是子午线轮胎最主要的受力部分, 它在很大程度上决定着胎体的变形。 直接影响到胎面的刚性, 因此它对轮胎的 耐磨性, 行驶稳定性、 舒适性等有重要影响。
理论上讲, 带束层帘线角度 (与轮胎赤道的夹角)越小, 对胎体的箍紧作 用越好, 胎面的刚性越强。 但由于现行的生产工艺中, 帘线角度过小, 不仅使 带束层的裁断和接头等工艺操作复杂化, 而且对轮胎使用性能不利, 容易产生 带束层脱层的危险。 所以现行的带束层帘线一般与轮胎周向呈 15-20度角。 但 这种子午线轮胎的刚性还是受到了很大的限制, 一般带束层要采用较多层的结 构来弥补其刚性上的缺陷。 这就既增加了成本, 同时也增加了轮胎的重量, 这 就在轻型汽车对子午线轮胎的使用方面受到了很大的限制。
为了减小带束层肩部的变形, 提高子午线轮胎的胎肩刚性, 减少变形生热, 保护带束层免受应力应变作用产生的疲劳损坏。 保证在高速行驶时具有稳定的 尺寸, 提高胎面稳定性、 减少不均匀磨耗, 意大利倍耐力公司设计了一种零度 带束层结构的子午线轮胎, 它在带束层的两肩设有两层沿周向排列重叠缠两圈 而成的环状增强带束条。 它与普通结构带束层子午线轮胎相比具有降低滚动阻 力, 节省燃料; 降低生热, 轮胎耐久安全,胎面稳定,提高轮胎的侧向刚性等优 点。 但这种设计提高工艺的复杂程度, 是以成本的较大提高为代价的, 而且, 带束层的中心部位的刚性并没有得到有效提高, 甚至由于其两侧带束层的刚性 过大, 而中部的刚性较小, 在轮胎的高压硫化当中, 胎体两侧不会伸张, 而中 部产生较大的伸张, 造成轮胎畸形。 为了解决上述这些问题, 我公司设计出了 一种 "零角度带束层的子午线轮胎"(即带束层帘线与轮胎赤道的角度在 0-15 度之间的子午线轮胎), 这种子午线轮胎的带束层采用单根或若干根钢丝帘线螺 旋盘绕的方式。 为了满足这种带束层的生产需要, 我们检索了相关工艺装置, 公开号为 CN2471524的中国实用新型公幵了钢丝带束层复胶挤出机, 它由钢丝 帘线锭子架、 挤出复胶装置、 冷却牵引装置、 裁断接头装置、 包边装置及双工 位卷取装置所构成。 该实用新型的优点在于将带束层分步分散的生产工序集中 在一起, 但无法满足 "零角度带束层的子午线轮胎" 的螺旋结构带束层的生产 需求。 公开号为 CN1615229 的中国专利公开了一种建筑用车辆的充气子午线轮 胎以及其带束层和这种轮胎的制造方法, 其中用帘线束来构成其宽度为胎面宽 度的 0. 25-0. 5倍的带束层中的至少一层,每个帘线束由多段以大致相等的间隔 彼此平行地布置的钢丝帘线形成,使帘线束和其附近的钢丝帘线之间的距离大 于那些在帘线束中的钢丝帘线之间的距离,钢丝帘线相对于轮胎的赤道平面的 交角被设定为 0-15° ,并且钢丝帘线的直径被设定为在 1. 0-6. Oram的范围内,而 且通过以下方式形成帘线束,即,在用橡胶层薄薄地涂覆形成帘线束的帘线之后 使这些帘线穿过插入件以整体地涂覆橡胶,由此可以防止在钢丝帘线的端部处 出现的分离,从而改善带束层耐久性。 上述零度角带束层由于其在轮胎周向的形 状是稳定的, 即使在高压硫化过程中也不会发生伸缩, 因此, 其硫化之后, 带 束层形成柱形结构, 而在轮胎的使用过程中, 其两肩部的应力较为集中、 磨损 较大, 容易出现带束层两侧胶体裂开、 帘线外露的情况。 在斜交胎中, 带束层 在硫化过程中会由于中部伸张, 其截面会产生一个弧形, 即中间隆起的结构, 使得带束层两侧胶体不易裂形, 但是在零度带束层轮胎中, 由于带束层的刚性 较大, 硫化过程中, 其各部位几乎不会伸张, 因此, 现有技术中, 还没有解决 这个问题的先例。 发明内容
本发明主要是解决现有技术所存在的双层钢丝帘线胎体中两层帘线易磨损 的技术问题, 提供一种胎体两层帘线不易磨损, 胎体缓定性好的新型轮胎。
本发明还提供了一种双层钢丝帘线胎体的轮胎的加工工艺, 使其可以实现 两层帘线之间不会磨损, 两层帘线之间不会断层。
本发明的上述技术问题主要是通过下述技术方案得以解决的: 一种新型轮 胎, 包括胎体、 缓冲层、 带束层、 胎侧以及胎面, 其特征在于所述的胎体包括 内帘布层和外帘布层, 内外帘布层均为钢丝帘线, 内外帘布层之间设有胶体隔 层, 该胶体隔层处于胎体两侧及中间部分, 其厚度为 0. 8-1. 5皿, 其两侧末端平 滑过度到 0mm, 所述的内外帘布层的帘线相互交错设置。 该方案一改现有技术 当中胎体帘布层内双层帘线的结构, 而采用两层帘布层, 每层帘布层内设有一 层帘线的结构, 两层帘布层之间设有胶体隔层, 实现了各帘布层的帘线不会直 接接触, 即使考虑到长时间的相对运动也不会出现直接接触的现象, 提高了胎 体的缓定性。
作为优选, 所述的内帘布层和外帘布层的两侧设有翻边, 该翻边沿钢丝圈 向外翻转贴合于外帘布层上, 内帘布层的两侧翻边分别比外帘布层两侧翻边长
3-10mm, 内帘布层的两侧翻边分别将外帘布层两侧翻边包裹, 内帘布层的翻边 处设有内封层, 内帘布层的两侧翻边被设于内封层与外帘布层之间的包胶包裹。 普通胎体为了防止帘布层两侧翻边在使用中脱落, 往往通过包胶直接将该翻边 与胎侧直接包裹, 但是由于本发明具有两层帘布层, 如果仍然用包胶直接包裹, 在使用中由于应力集中, 还是容易出现翻边脱胶的问题, 而本方案通过内帘布 层的翻边包裹外帘布层翻边, 再由包胶包裹内帘布层翻边, 有效的解决了这个 问题, 使得翻边更为牢固。
作为优选, 所述的带束层的帘线由 1-5条帘线沿轮胎轴向螺旋盘绕而成, 其中带束层的中部设有加强部, 该加强部设有双层或三层帘线。 带束层的中部 是主要的受力部位, 而其两侧的受力较小, 从保证强度和节约成本两方面考虑, 将带束层中部设为加强部, 通过双层或三层帘线实现。
作为优选, 所述的带束层加强部的宽度为带束层总宽度的(1/2) - (3/5),加 强部两侧的帘线宽度分别为带束层总宽度的(1/5) - (1/4)。 该方案出于带束层 受力的特点, 占带束层总宽度 (1/2) - (3/5〉的部受力最大的考虑进行设计的。
作为优选, 所述的 1-5条帘线并排构成帘线束, 该帘线束外侧包覆有一层 胶料, 带束层加强部的双层帘线部分的帘线束从第二圈幵始部分重叠于上一圈。 该方案使得带束层的加工, 以及其双层帘线的加强部的加工更为方便。 又由于 各圈帘线束之间倾斜相贴, 在凹凸不平的地面上使用时, 各圈帘线束之间会产 生弹性偏移, 使得胎面与地面的接触面更大, 从而提高抓地性能, 而且本方案 也大简化了加工工艺。
作为优选, 所述的 1-5条帘线并排构成帘线束, 该帘线束外侧包覆有一层 胶料, 带束层加强部的三层帘线部分的帘线束第二圈部分重叠于第一圈, 从第 三圈开始部分重叠于上两圈。 这种结构使得三层帘线的加强部的加工更为方便。 又由于各圈帘线束之间倾斜相贴, 在凹凸不平的地面上使用时, 各圈帘线束之 间会产生弹性偏移, 使得胎面与地面的接触面更大, 从而提高抓地性能, 而且 本方案也大简化了加工工艺。
作为优选, 所述的带束层的横截面中, 帘线排布呈拱形结构, 拱形的凸面 朝外。 由于胎冠的两肩部的应力较为集中、 磨损较大, 容易出现带束层两侧胶 体裂开、 帘线外露的情况, 将帘线排布设计成拱形, 使得其不容易出现因应力 集中而帘线外露的情况, 有效的提高了轮胎的使用寿命。
作为优选, 所述的带束层帘线为钢丝或芳香族聚酰胺纤维。 钢丝帘线具有 强度高、 耐磨性好, 而芳香族聚酰胺帘线在胎体为钢丝帘线的条件下, 其强度 也相当可靠, 而且柔韧性、 耐屈挠性好, 相同表面积的胎面在使用中可以获得 更大的与地面的接触面积, 从而提高抓地性能。 相比于现有的半钢胎都采用胎 体帘线为人造纤维帘线, 带束层帘线为钢丝帘线的形式, 本方案是半钢胎的一 大创新。
作为优选, 所述的芳香族聚酰胺包括以下几种:
Figure imgf000007_0001
Figure imgf000007_0002
Figure imgf000008_0001
Figure imgf000008_0002
为了实现本发明所述的新型轮胎的生产制造, 本发明还提供了以下工艺: 一种新型轮胎的工艺, 包括以下步骤:
步骤一, 准备成型鼓, 在成型鼓两侧贴内封层;
步骤二, 在内封层上贴内帘布层, 使得所述的内封层处于内帘布层的两端, 内帘布层分为主体部分和翻边部分;
步骤三, 在内帘布层上贴胶体隔层, 胶体隔层与所述的内帘布层的主体部 分重合, 该胶体隔层厚度为 0. 8-1. 5皿, 其两侧末端平滑过度为 0mm;
步骤四, 在胶体隔层上贴外帘布层, 内、 外帘布层的帘线相互交错, 外帘 布层两端均比内帘布层两端短 3-10mm, 外帘布层分为主体部分和翻边部分, 由 于外帘布层两端比外帘布层两端短 3-10mm, 所以胎体成形后, 可以实现内帘布 层的两侧翻边分别将外帘布层两侧包裹;
步骤五, 在外帘布层的主体部分两端和翻边部分交接处固定钢丝圈, 并在 钢丝圈上固定三角胶;
步骤六, 成型鼓从两侧向内合拢, 胎体成形, 并通过锁定装置锁定胎体形 状, 外帘布层将所述的钢丝圈和三角胶包裹, 内帘布层的两侧翻边部分分别将 外帘布层两侧翻边部分包裹;
步骤七, 在内帘布层翻边部分与外帘布层的主体部分之间贴一层包胶; 步骤八, 在胎体两侧贴上胎侧, 并在胎体中部贴缓冲层;
步骤九, 将胎体与带束层合拢, 在带束层上贴冠底胶层, 在冠底胶层上贴 胎面, 完成胎胚;
步骤十, 将胎胚设于硫化机内进行加压、 硫化。
作为优选, 步骤三所述的胶体隔层中部设有一个弧形凸起, 该弧形凸起的 长度为 80-120mm, 其中间部分的厚度为 0. 8-1. 4mm。 在胎体合拢的过程中, 两 层帘布层挤压夹于其中的胶体隔层, 会使得处于胎体中部的两层帘布层贴得太 近, 在使用中, 最终会因相互摩擦而出现帘线直接触的问题, 在胎体合拢过程 中, 由于胎体外部的张力大, 内部的张力相对较小, 该弧形凸起的胶体向内挤 压, 在胎体内部形成一个凸起, 两层帘布层互相靠近, 在硫化过程中, 由于向 胎体内部加入高压, 该形成于胎体内部的凸起在压力的作用下向外挤压, 使得 两层帘布层之间达到一个合理的间距。
作为优选, 所述的帘布层的加工工艺如下:
步骤一, 根据轮胎尺寸选择一个帘布层加工鼓, 在加工鼓上按照帘布层的 尺寸需要贴一层胎布;
步骤二, 将帘布层帘线螺旋缠绕在胎布上;
步骤三, 在螺旋缠绕的帘线外侧贴一层胎布, 形成筒形帘布层;
步骤四, 在筒形帘布层的侧面, 以一个倾斜角度沿螺旋裁剪线裁剪, 使得 筒形帘布层展开成片状帘布层。
传统的帘布层加工工艺及加工设备都非常复杂, 需要一个昂贵的锭子房, 然后将帘线均匀分布并贴合固定在两层胎布之间, 该设计的精度要求非常高, 体积非常庞大, 成本极其昂贵。 其生产出的帘布层是大尺寸的, 在使用这种帘 布层生产轮胎时, 还要将其裁剪成需要的尺寸, 同时产生大量的废料。 无论在 材料成本, 还是在人工成本上都非常浪费。 为了解决这个问题, 本发明提供的 方案中, 只要准备一个与所生产的轮胎对应的帘布层加工鼓, 通过将帘线、 胎 布缠绕在加工鼓上, 形成一个筒形帘布层, 以一个倾斜角度沿螺旋裁剪线裁剪, 使得筒形帘布层展开成片状帘布层, 由于帘线是螺旋缠绕的, 帘线基本处于筒 形帘布层的周向上, 即展开后, 该帘线基本与片状帘布层的两侧平行。 这种加 工方式只需要极少的帘线绽就可以完成 (帘线绽的个数取决于由于根帘线同时 缠绕)。 工艺过程以及设备都非常简单, 同时也不会生产废料, 而且各帘线的拉 力非常均匀。
作为优选, 所述的片状帘布层在使用时其裁剪切口作为帘布层两侧, 另两 侧边相互对接, 形成筒状结构, 分别作为内、 外帘布层, 设于成形鼓上。 这种 连接方式, 形成的连接线为一条螺旋线, 所有的帘线呈倾斜设置, 并且不会产 生多于的角料。
作为优选, 所述内、 外帘布层在对接时, 其中之一以原筒状帘布层的内侧 作为其内侧, 另一层帘布层以原筒状帘布层的外侧作为其内侧。 两层帘布层的 对接方向正好相反, 对接后产生的帘布层的帘线倾斜方向也正好相反, 使得其 有效的实现了两层帘布层的帘线相互交错的目的。
作为优选, 所述的带束层的加工工艺如下- 步骤一, 根据带束层的尺寸要求准备一个带束层成形鼓, 该成形鼓上设有 一个环形凸起, 该环形凸起的横截面为弓形结构;
步骤二, 将通过挂胶的帘线螺旋缠绕在成形鼓的环形凸起上;
步骤三, 在缠绕好的帘线上贴上胶层。
由于零度角带束层由于其在轮胎周向的形状是稳定的, 即使在高压硫化过 程中也不会发生伸縮, 因此, 其硫化之后, 带束层形成柱形结构, 而在轮胎的 使用过程中, 其两肩部的应力较为集中、 磨损较大, 容易出现带束层两侧胶体 裂开、 帘线外露的情况。 为了解决这个问题, 本方案在带束层的成形鼓上设置 了一个环形凸起, 当帘线缠绕在该成形鼓上时, 帘线的分布截面即形成一个弧 形, 使得带束层的两侧的应力集中得到削减, 实现了其在胎体两侧被磨损后, 不易露出帘线。
作为优选, 所述的帘线并排排列, 通过挂胶构成帘线束, 帘线通过帘线束 的形式螺旋缠绕在环形凸起上。 通过几根帘线形成的帘线束进行缠绕, 能有效 提高生产效率。
作为优选, 所述的帘线束在缠绕时, 所述的带束层成形鼓不断转动, 在其 转动的同时, 通过一个拨动机构带动帘线束沿带束层成形鼓轴向走线, 带束层 成形鼓每转动一圈, 拨动机构带动带束层走线的距离大于或等于帘线束的宽度, 当缠绕到带束层的加强部时, 带束层成形鼓每转动一圈, 拨动机构带动带束层 走线的距离小于帘线束的宽度, 使得从加强部的第二圈开始部分重叠于上一圈, 或加强部的第二圈部分重叠于第一圈, 从第三圈开始部分重叠于上两圈。
本发明的带来的有益效果是, 解决了现有技术中存在的双层钢丝帘线胎体 中两层帘线之间间距过小或者很难控制、 易出现相互磨损, 帘布层的翻边容易 出现脱落, 带束层两肩易出现帘线外露、 带束层中部强度不够等技术问题, 同 时在工艺上, 帘布层的工艺复杂、 成本高、 废料多等技术问题, 实现了一种胎 体两层帘线之间的间距合理、 间距的控制方便、 不易出现相互麻损, 帘布层和 翻边不易脱落, 带束层两肩帘线不会外露、 带束层强度分布合理的轮胎及其工 艺。
因此, 本发明具有结构合理、 工艺简单、 成本底、 效率高、 寿命长等特点。 附图说明
附图 1是本发明的轮胎的一种结构示意图;
附图 2是本发明的胎体合拢前的工艺图;
附图 3是本发明的胎体合拢后的结构图;
附图 4是本发明的胎体帘布层的工艺图;
附图 5是本发明的胎体帘布层的裁剪后形成的片状帘布层图;
附图 6是本发明的胎体帘布层的正反两种卷曲过程图;
附图 7是本发明的带束层成形鼓结构示意图; 附图 8是附图 Ί在 A- Α处的截面图;
附图 9是实施例 1的带束层的结构示意图;
附图 10是实施例 2的带束层的结构示意图;
附图 11是本发明的胶体隔层的结构示意图。 具体实施方式
下面通过实施例, 并结合附图, 对本发明的技术方案作进一步具体的说明。 实施例 1:
如图 1所示, 本发明是一种新型轮胎及其生产工艺, 该轮胎包括胎体、 缓 冲层 9、 带束层 10、 胎侧以及胎面 11, 所述的胎体包括内帘布层 1和外帘布层 3, 所述的内帘布层和外帘布层的两侧设有翻边, 该翻边沿钢丝圈 7向外翻转贴 合于外帘布层 3上, 内帘布层的两侧翻边 1-1分别比外帘布层两侧翻边 3-1长 7mm, 内帘布层的两侧翻边 1 - 1分别将外帘布层两侧翻边 3-1包裹, 内帘布层的 两侧翻边处设有内封层 8,内帘布层的两侧翻边被设于内封层 8与外帘布层 3之 间的包胶 5包裹。 内、 外帘布层均为钢丝帘线, 内、 外帘布层之间设有胶体隔 层 2, 该胶体隔层处于胎体两侧及中间部分, 其厚度为 lmm, 其两侧末端平滑过 度到 0mm, 所述的内外帘布层的帘线相互交错设置。 所述的带束层 10的横截面 中, 帘线排布呈拱形结构, 拱形的凸面朝外, 带束层 10的中部设有占带束层总 宽度的 1/2的加强部 10-1, 该加强部设有双层帘线, 带束层的帘线由 3条钢丝 帘线构成的帘线束沿轮胎轴向螺旋盘绕而成, 该帘线束外侧包覆有一层胶料, 带束层加强部的双层帘线部分的帘线束从第二圈开始部分重叠于上一圈。
为了实现本发明所述的新型轮胎的生产制造, 本发明还提供了以下工艺: 一种新型轮胎的工艺, 包括以下步骤(如图 2、 图 3、 图 11 ) :
步骤一, 准备成型鼓 12, 在成型鼓两侧贴内封层 8;
步骤二,在内封层上贴内帘布层 1,使得所述的内封层 8处于内帘布层 1的 两端, 内帘布层分为主体部分和翻边部分;
步骤三,在内帘布层上贴胶体隔层 2,胶体隔层 2与所述的内帘布层 1的主 体部分重合, 该胶体隔层厚度为 lmm, 其两侧末端平滑过度为 0mm, 胶体隔层中 部设有一个弧形凸起 2-1,该弧形凸起的长度为 100mm,其中间部分的厚度为 1mm;
步骤四, 在胶体隔层上贴外帘布层 3, 内、 外帘布层的帘线相互交错, 外帘 布层 3两端均比内帘布层两端短 7皿,外帘布层分为主体部分和翻边部分, 由于 外帘布层两端比外帘布层两端短 7mm,所以胎体成形后,可以实现内帘布层的两 侧翻边分别将外帘布层两侧包裹;
步骤五,在外帘布层的主体部分两端和翻边部分交接处固定钢丝圈 7, 并在 钢丝圈上固定三角胶 6; ' '
步骤六, 成型鼓从两侧向内合拢, 胎体成形, 并通过锁定装置锁定胎体形 状, 外帘布层将所述的钢丝圈和三角胶包裹, 内帘布层的两侧翻边部分分别将 外帘布层两侧翻边部分包裹;
步骤七, 在内帘布层翻边部分与外帘布层的主体部分之间贴一层包胶 5; 步骤八, 在胎体两侧贴上胎侧, 并在胎体中部贴缓冲层 9;
步骤九, 将胎体与带束层 10合拢, 在带束层上贴冠底胶层, 在冠底胶层上 贴胎面 11, 完成胎胚;
步骤十, 将胎胚设于硫化机内进行加压、 硫化。
帘布层的加工工艺如下 (如图 4、 图 5、 图 6) :
步骤一, 根据轮胎尺寸选择一个帘布层加工鼓 15, 在加工鼓上按照帘布层 的尺寸需要贴一层胎布 17;
步骤二, 将帘布层帘线 16螺旋缠绕在胎布 17上;
步骤三, 在螺旋缠绕的帘线外侧贴一层胎布 17, 形成筒形帘布层 18;
步骤四, 在筒形帘布层 18的侧面, 以一个倾斜角度沿螺旋裁剪线 19裁剪, 使得筒形帘布层 18展开成片状帘布层 20。 片状帘布层 20在使用时其裁剪切口 作为帘布层两侧, 另两侧边相互对接, 形成筒状结构, 分别作为内、 外帘布层, 设于成形鼓上, 其中内帘布层以原筒状帘布层的内侧作为其内侧, 外帘布层以 原筒状帘布层的外侧作为其内侧, 两者形成的帘线会产生相反的倾斜角度。
带束层的加工工艺如下 (图 7、 图 8、 图 9):
步骤一, 根据带束层的尺寸要求准备一个带束层成形鼓 13, 该带束层成形 鼓上设有一个环形凸起 14, 该环形凸起的横截面为弓形结构;
步骤二, 将通过挂胶的若干条帘线并排螺旋缠绕在成形鼓的环形凸起上, 帘线束在缠绕时, 所述的带束层成形鼓不断转动, 在其转动的同时, 通过一个 拨动机构带动帘线束沿带束层成形鼓轴向走线, 带束层成形鼓每转动一圈, 拨 动机构带动带束层走线的距离大于或等于帘线束的宽度, 当缠绕到带束层的加 强部时, 带束层成形鼓每转动一圈, 拨动机构带动带束层走线的距离小于帘线 束的宽度, 使得从加强部的第二圈开始部分重叠于上一圈;
步骤三, 在缠绕好的帘线上贴上胶层。 实施例 2:
本实施例在实施例 1的基础上, 其中带束层 10的加强部 10-1为三层帘线, 带束层加强部的三层帘线部分的帘线束第二圈部分重叠于第一圈, 从第三圈幵 始部分重叠于上两圈。
相应的, 其工艺中, 帘线束在缠绕时, 所述的带束层成形鼓不断转动, 在 其转动的同时, 通过一个拨动机构带动帘线束沿带束层成形鼓轴向走线, 带束 层成形鼓每转动一圈, 拨动机构带动带束层走线的距离大于或等于帘线束的宽 度, 当缠绕到带束层的加强部时, 带束层成形鼓每转动一圈, 拨动机构带动带 束层走线的距离小于帘线束的宽度, 使得加强部的第二圈部分重叠于第一圈, 从第三圈开始部分重叠于上两圈, 以达到加强部三层帘线的结构。 实施例 3:
本实施例在实施例 1或实施例 2的基础上, 其中带束层 10的帘线为芳香族 聚酰胺帘线, 包括以下几种:
Figure imgf000015_0001
Figure imgf000015_0002
Figure imgf000015_0003
芳香族聚酰胺帘线在胎体为钢丝帘线的条件下, 其强度也相当可靠, 而且 其成本低的多。
所以本发明具有胎体两层帘线之间的间距合理、 间距的控制方便、 不易出 现相互麻损, 帘布层和翻边不易脱落, 带束层两肩帘线不会外露、 带束层强度 分布合理的等特征。

Claims

权 利 要 求 书
1. 一种新型轮胎, 包括胎体、 缓冲层、 带束层、 胎侧以及胎面, 其特征在于所 述的胎体包括内帘布层 (1)和外帘布层 (3), 内外帘布层均为钢丝帘线 (16) , 内外帘布层之间设有胶体隔层 (2), 该胶体隔层(2)处于胎体两侧及中间部 分, 其厚度为 0. 8- 1. 5mm, 其两侧末端平滑过度到 0mm, 所述的内外帘布层 的帘线相互交错设置。 ■
2. 根据权利要求 1所述的一种新型轮胎, 其特征在于所述的内帘布层(1)和外 帘布层(3)的两侧设有翻边, 该翻边沿钢丝圈(7)向外翻转贴合于外帘布层 上, 内帘布层的两侧翻边(1-1)分别比外帘布层两侧翻边 (3-1)长 3 - 10mm, 内 帘布层的两侧蠲边分别将外帘布层两侧翻边包裹, 内帘布层的翻边处设有内 封层 (8), 内帘布层的两侧翻边(1-1 )被设于内封层 (8)与外帘布层之间 的包胶 (5)包裹。
3. 根据权利要求 1所述的一种新型轮胎, 其特征在于所述的带束层 (10) 的帘 线由 1-5条帘线沿轮胎轴向螺旋盘绕而成, 其中带束层的中部设有加强部
( 10-1 ) , 该加强部设有双层或三层帘线。
4. 根据权利要求 3 所述的一种新型轮胎, 其特征在于所述的带束层加强部
( 10-1 )的宽度为带束层总宽度的(1/2) - (3/5),加强部两侧的帘线宽度分别 为带束层总宽度的(1/5) - (1/4)。
5. 根据权利要求 3所述的一种新型轮胎, 其特征在于所述的 1-5条帘线并排构 成帘线束, 该帘线束外侧包覆有一层胶料, 带束层加强部的双层帘线部分的 帘线束从第二圈开始部分重叠于上一圈。
6. 根据权利要求 3所述的一种新型轮胎, 其特征在于所述的 1-5条帘线并排构 成帘线束, 该帘线束外侧包覆有一层晈料, 带束层加强部的三层帘线部分的 帘线束第二圈部分重叠于第一圈, 从第三圈开始部分重叠于上两圈。
7. 根据权利要求 3或 4或 5或 6所述的一种新型轮胎, 其特征在于所述的带束 层的横截面中, 帘线排布呈拱形结构, 拱形的凸面朝外。
8. 根据权利要求 3 4或 5或 6所述的一种新型轮胎, 其特征在于所述的带束 层帘线为钢丝或芳香族聚酰胺。
9. 根据权利要求 7所述的一种新型轮胎, 其特征在于所述的带束层帘线为钢丝 或芳香族聚酰胺。
10.根据权利要求 8所述的一种新型轮胎, 其特征在于所述的芳香族聚酰胺包括 以下几种:
Figure imgf000017_0001
Figure imgf000017_0002
11.一种新型轮胎的工艺, 其特征在于包括以下步骤:
步骤一, 准备成型鼓 (12), 在成型鼓两侧贴内封层 (8) ;
步骤二, 在内封层上贴内帘布层(1), 使得所述的内封层处于内帘布层的两 端, 内帘布层分为主体部分和翻边 分; 步骤三, 在内帘布层上贴胶体隔层 (2), 胶体隔层与所述的内帘布层的主 体部分重合, 该胶体隔层厚度为 0. 8- 1. 5mm, 其两侧 端平滑过度为 0mm; 步骤四, 在胶体隔层上贴外帘布层 (3), 内、 外帘布层的帘线相互交错, 外帘布层两端均比内帘布层两端短 3-10mm,外帘布层分为 ^体部分和翻边部 分;
步骤五, 在外帘布层的主体部分两端和翻边部分交接处固定钢丝圈 (7), 并在钢丝圈上固定三角胶(6) ;
步骤六, 成型鼓从两侧向内合拢, 胎体成形, 并通过锁定装置锁定胎体形 状, 外帘布层将所述的钢丝圈和三角胶包裹, 内帘布层的两侧翻边部分分别 将外帘布层两侧翻边部分包裹;
步骤七, 在内帘布层翻边部分与外帘布层的主体部分之间 -贴一层包胶(5 ); 步骤八, 在胎体两侧贴上胎侧 (4), 并在胎体中部贴缓冲层 (9);
步骤九, 将胎体与带束层合拢, 在带束层上贴冠底胶层, 在冠底胶层上贴 胎面(11 ), 完成胎胚;
步骤十, 将胎胚设于硫化机内进行加压、 硫化。
根据权利要求 11所述的一种新型轮胎的工艺, 其特征在于, 步骤三所述的 胶体隔层中部 '设有一个弧形凸起(2-1 ), 该弧形凸起的长度为 80- 120mm, 其 中间部分的厚度为 0. 8-1. 4mm。
根据权利要求 11所述的一种新型轮胎的工艺, 其特征在于所述的帘布层的 加工工艺如下:
步骤一, 根据轮胎尺寸选择一个帘布层加工鼓(15), 在加工鼓上按照帘布 层的尺寸需要贴一层胎布 (17 );
步骤二, 将帘布层帘线 (16) 螺旋缠绕在胎布上; ....
步骤三, 在螺旋缠绕的帘线外侧贴一层胎布(17), 形成筒形帘布层 (18); 步骤四, 在筒形帘布层 (18) 的侧面, 以一个倾斜角度沿螺旋裁剪线 (19) 裁剪, 使得筒形帘布层展开成片状帘布层 (20)。
根据权利要求 13所述的一种新型轮胎的工艺, 其特征在于所述的片状帘布 层(20)在使用时其裁剪切口作为帘布层两侧, 另两 ^lj边相互对接, 形成筒 状结构, 分别作为内、 外帘布层, 设于成形鼓上。
根据权利要求 14所述的一种新型轮胎的工艺, 其特征在 所述内、 外帘布 层在对接时, 其中之一以原筒状帘布层的内侧作为其内侧, 另一层帘布层以 原筒状帘布层的外侧作为其内侧。
根据权利要求 11所述的一种新型轮胎的工艺, 其特征在于所述的带束层的 加工工艺如下:
步骤一, 根据带束层的尺寸要求准备一个带束层成形鼓(13), 该带束层成 形鼓上设有一个环形凸起(14), 该环形凸起的横截面为弓形结构; 步骤二, 将通过挂胶的帘线螺旋缠绕在成形鼓的环形凸起!:;
步骤三, 在缠绕好的帘线上贴上胶层。
根据权利要求 16所述的一种新型轮胎的工艺, 其特征在于所述的帘线并排 排列,通过挂胶构成帘线束,帘线通过帘线束的形式螺旋缠绕在环形凸起上。 根据权利要求 17所述的一种新型轮胎的工艺, 其特征在于所述的帘线束在 缠绕时, 所述的带束层成形鼓不断转动, 在其转动的同时, 通过一个拨动机 构带动帘线束沿带束层成形鼓轴向走线, 带束层成形鼓每转动一圈, 拨动机 构带动带束层走线的距离大于或等于帘线束的宽度, 当缠幾到带束层的加强 部(10-1 ) 时, 带束层成形鼓每转动一圈, 拨动机构带动带束层走线的距离 小于帘线束的宽度, 使得从加强部的第二圈开始部分重叠于上一圈, 或加强 部的第二圈部分重叠于第一圈, 从第三圈开始部分重叠于上两圈。
PCT/CN2010/001412 2010-06-30 2010-09-14 一种新型轮胎及其生产工艺 WO2012000145A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010213148.5 2010-06-30
CN 201010213148 CN101927663B (zh) 2010-06-30 2010-06-30 一种轮胎及其生产工艺

Publications (1)

Publication Number Publication Date
WO2012000145A1 true WO2012000145A1 (zh) 2012-01-05

Family

ID=43367208

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/001412 WO2012000145A1 (zh) 2010-06-30 2010-09-14 一种新型轮胎及其生产工艺

Country Status (2)

Country Link
CN (1) CN101927663B (zh)
WO (1) WO2012000145A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104411512A (zh) * 2012-06-26 2015-03-11 横滨橡胶株式会社 充气轮胎和用于制造充气轮胎的方法
CN104442207A (zh) * 2013-09-23 2015-03-25 招远市东晟橡胶制品有限公司 一种耐刺穿的轮胎

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103009933A (zh) * 2012-12-26 2013-04-03 中橡集团曙光橡胶工业研究设计院 一种内带束载重汽车轮胎及其制造方法
CN103950217B (zh) * 2014-04-30 2017-01-25 江苏通用科技股份有限公司 全钢子午线轮胎胎面的全分预口型
CN104669656A (zh) * 2015-02-09 2015-06-03 青岛森麒麟轮胎有限公司 一种大型民用航空轮胎胎圈的制作方法
CN108422811A (zh) * 2018-04-16 2018-08-21 中策橡胶集团有限公司 一种扁平70以下系列的载重充气子午线轮胎
CN115179690B (zh) * 2022-06-27 2023-10-27 安徽佳通乘用子午线轮胎有限公司 一种高性能轮胎

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1135977A (zh) * 1995-03-24 1996-11-20 固特异轮胎和橡胶公司 径向中型卡车轮胎
CN1610620A (zh) * 2001-10-29 2005-04-27 米其林技术公司 具有两个半胎身及低胎冠加强件的轮胎
CN1727173A (zh) * 2004-07-30 2006-02-01 住友橡胶工业株式会社 制造充气轮胎的方法
CN1946574A (zh) * 2004-03-12 2007-04-11 株式会社普利司通 充气轮胎
EP1800903A2 (en) * 2005-12-26 2007-06-27 Sumitomo Rubber Industries, Ltd. Heavy duty tire
CN201021073Y (zh) * 2007-04-28 2008-02-13 黄晓 一种复合式轮胎

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2790982B2 (ja) * 1994-11-15 1998-08-27 住友ゴム工業株式会社 空気入りラジアルタイヤ
JP4053719B2 (ja) * 2000-09-08 2008-02-27 住友ゴム工業株式会社 ランフラット性を向上したタイヤ
JP2003039571A (ja) * 2001-08-03 2003-02-13 Bridgestone Corp 空気入りタイヤの製造方法
CN2649369Y (zh) * 2003-10-22 2004-10-20 天津诺曼地橡胶有限公司 新型全钢丝子午线轮胎
US7891394B2 (en) * 2004-09-23 2011-02-22 The Goodyear Tire & Rubber Company Tire with puncture resistant sidewall
CN201863646U (zh) * 2010-06-30 2011-06-15 杭州零度轮胎技术有限公司 一种双帘布层轮胎

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1135977A (zh) * 1995-03-24 1996-11-20 固特异轮胎和橡胶公司 径向中型卡车轮胎
CN1610620A (zh) * 2001-10-29 2005-04-27 米其林技术公司 具有两个半胎身及低胎冠加强件的轮胎
CN1946574A (zh) * 2004-03-12 2007-04-11 株式会社普利司通 充气轮胎
CN1727173A (zh) * 2004-07-30 2006-02-01 住友橡胶工业株式会社 制造充气轮胎的方法
EP1800903A2 (en) * 2005-12-26 2007-06-27 Sumitomo Rubber Industries, Ltd. Heavy duty tire
CN201021073Y (zh) * 2007-04-28 2008-02-13 黄晓 一种复合式轮胎

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104411512A (zh) * 2012-06-26 2015-03-11 横滨橡胶株式会社 充气轮胎和用于制造充气轮胎的方法
CN104442207A (zh) * 2013-09-23 2015-03-25 招远市东晟橡胶制品有限公司 一种耐刺穿的轮胎

Also Published As

Publication number Publication date
CN101927663A (zh) 2010-12-29
CN101927663B (zh) 2012-12-05

Similar Documents

Publication Publication Date Title
WO2012000145A1 (zh) 一种新型轮胎及其生产工艺
WO2011099635A1 (ja) 空気入りタイヤ
JPH0415106A (ja) ラジアルタイヤ
US11884115B2 (en) Method for producing a reinforcement structure for a tire
CN102858556A (zh) 充气轮胎
US20180207987A1 (en) Pneumatic tire comprising reinforcing elements in the form of multi-layer tapes
KR20120088489A (ko) 공기 타이어의 제조방법
JP2012016865A (ja) 空気入りタイヤの製造方法及び空気入りタイヤ
JP2000062041A (ja) タイヤのカ―カス構造体の製造方法及びタイヤのカ―カス構造体
CN103732421B (zh) 充气轮胎
US20190248185A1 (en) Method of using corrugated zero-degree belt to manufacture tire
US20210178833A1 (en) Pneumatic tire and manufacturing method thereof
JP2012501275A (ja) 複合ストリップを有するクラウン補強材を備えた重車両用タイヤ
JP3459800B2 (ja) 空気入りタイヤ
JP6130742B2 (ja) 空気入りタイヤの製造方法
JP2018118605A (ja) 空気入りタイヤ、空気入りタイヤの製造方法及び短冊プライ片
JP2006247931A (ja) ランフラットタイヤ及びその製造方法
CN101927664A (zh) 一种高强度带束层轮胎及其工艺
WO2010028535A1 (zh) 一种子午线轮胎
JPH0137284B2 (zh)
JPH03213404A (ja) スペアタイヤ
CN201863645U (zh) 一种高强度带束层轮胎
JP5965149B2 (ja) 空気入りタイヤおよびタイヤ用帯状部材
JP2013035363A (ja) 乗用車用空気入りラジアルタイヤ
CN212579528U (zh) 一种子午线轮胎

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10853851

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10853851

Country of ref document: EP

Kind code of ref document: A1