Steel wire cord capable of improving rubber layer permeation

Abstract

The utility model discloses a steel wire cord capable of improving rubber layer penetration, and particularly relates to the field of dung leakage plate supporting beams, the steel wire cord comprises single steel wires, an inner ring steel wire strand and an outer ring steel wire strand, the inner ring steel wire strand is formed by weaving and twisting six single steel wires around the single steel wire located in the middle in the same direction, and the outer ring steel wire strand is formed by weaving and twisting the six single steel wires around the single steel wire located in the middle in the same direction. The outer-ring steel wire strand is formed by rotationally weaving and twisting three inner-ring steel wire strands in the same direction, the four outer-ring steel wire strands are rotationally woven and twisted in the same direction to form the finished steel wire cord, the lay length of the steel wire single wires is 5-7 mm, and the inner-ring steel wire strands and the outer-ring steel wire strands are arranged, so that the steel wire cord is formed by combining multiple strands of inner rings and outer rings; therefore, gaps between the inner strands and the outer strands are increased, permeation of a rubber layer is facilitated, the air rate in the gaps between the inner ring and the outer ring is reduced, the strength and bending rigidity of the whole steel wire cord can be improved, and the influence of too small gaps on permeation of the rubber layer and the strength of a tire is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cords, in particular to a steel cord with improved rubber layer penetration. Background Art

[0002] Steel cord is the main skeleton material of all-steel radial tires, accounting for about 20% of the total tire mass, and has a crucial impact on tire quality. The belt layer, also known as the support layer, refers to the material layer under the tread base of radial tires and belted bias tires, which tightens the carcass along the circumferential direction of the tread centerline. In addition to easing the impact, it mainly tightens the carcass.

[0003] However, during use, the different twist directions and methods between the steel wires will cause the rubber to enter the gaps between the steel wires to different degrees. The structure of the steel cord and its strength, bending stiffness and adhesion to rubber have a direct impact on the tire. The outer layer steel wires in the prior art are arranged more closely and the gaps between the steel wires are smaller. The rubber cannot effectively penetrate into the middle layer steel wires, resulting in a higher air content inside the cord, which in turn affects the penetration of the rubber. Utility Model Content

[0004] The utility model aims to solve the problem that, when a large number of poultry gather on a single slatted floor or the poultry are too heavy during use, the slatted floor is fixed only by support blocks on both sides, which easily leads to excessive force in the middle, thereby causing the slatted floor to bend and deform. In extreme cases, the slatted floor may be broken, causing the poultry to fall to the bottom of the slatted floor, increasing the cleaning cost and maintenance cost, which is very inconvenient. A steel cord technology for improving the penetration of the glue layer is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a steel cord for improving the penetration of the rubber layer, a steel wire single wire, an inner ring steel wire strand and an outer ring steel wire strand, the inner ring steel wire strand is formed by six steel wire single wires twisted around a middle steel wire single wire along the same direction, the outer ring steel wire strand is formed by three inner ring steel wire strands rotated and twisted around the same direction, and the four outer ring steel wire strands are rotated and twisted along the same direction to form a finished steel cord, the twist pitch of the steel wire single wire is 5-7mm, the twist pitch of the inner ring steel wire strand is 9-13mm, and the twist pitch of the outer ring steel wire strand is 15-19mm.

[0006] The effect achieved by the above components is: by arranging inner ring steel wire strands and outer ring steel wire strands, the steel cord is made of a combination of multiple inner and outer rings, thereby increasing the gap between the inner strands and the outer strands, thereby facilitating the penetration of the rubber layer, thereby reducing the air rate in the gap between the inner and outer rings, thereby improving the overall strength and bending stiffness of the steel cord, and reducing the impact of too small a gap on the penetration of the rubber layer and the strength of the tire.

[0007] Preferably, the diameter of the single steel wire is 0.1 mm, and the lay length of the single steel wire is 6 mm.

[0008] The effect achieved by the above components is that by setting the diameter and lay length of the single steel wire, the twisting in coordination with other methods can be improved.

[0009] Preferably, the twist direction of the steel wire single line is S twist.

[0010] The effect achieved by the above components is that the production is facilitated by setting the twisting method of the steel wire single lines.

[0011] Preferably, the diameter of the inner circle steel wire strand is about 0.32 mm, and the lay length of the inner circle steel wire strand is 11 mm.

[0012] The effect achieved by the above components is that by setting the diameter and the lay length of the inner circle steel wire strands, twisting can be carried out in a coordinated twisting manner.

[0013] Preferably, the twist direction of the inner circle steel wire strands is S twist.

[0014] The effect achieved by the above components is that production can be facilitated by setting the twisting method of the inner circle steel wire strands.

[0015] Preferably, the diameter of the outer ring steel wire strand is 0.65 mm, and the lay length of the outer ring steel wire strand is 17 mm.

[0016] The effect achieved by the above components is that by setting the diameter and twisting pitch of the outer ring steel wire strands, twisting can be carried out in conjunction with other methods.

[0017] Preferably, the twist direction of the outer ring steel wire strands is Z twist.

[0018] The effect achieved by the above components is that the production can be facilitated by setting the twisting method of the outer ring steel wire strands.

[0019] In summary, the beneficial effects of the utility model are:

[0020] By arranging inner ring steel wire strands and outer ring steel wire strands, the steel cord is made of a combination of multiple inner and outer rings, thereby increasing the gap between the inner strands and the outer strands, thereby facilitating the penetration of the rubber layer, thereby reducing the air rate in the gap between the inner and outer rings, thereby improving the overall strength and bending stiffness of the steel cord and reducing the impact of too small a gap on the penetration of the rubber layer and the strength of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2It is a schematic diagram of the three-dimensional structure of the twisted arrangement of the steel wire single wires of the utility model;

[0023] Figure 3 It is a schematic diagram of the S-twist of the utility model;

[0024] Figure 4 It is a schematic diagram of the Z twist of the utility model.

[0025] Legend: 1. Single steel wire; 2. Inner circle steel wire strand; 3. Outer circle steel wire strand. DETAILED DESCRIPTION

[0026] Reference Figure 1-4 As shown, the utility model provides a technical solution: Example

[0027] A steel cord for improving rubber layer penetration comprises a steel wire single line 1, an inner circle steel wire strand 2 and an outer circle steel wire strand 3, wherein the inner circle steel wire strand 2 is formed by six steel wire single lines 1 being twisted around a middle steel wire single line 1 along the same direction, the outer circle steel wire strand 3 is formed by three inner circle steel wire strands 2 being twisted in rotation in the same direction, and four outer circle steel wire strands 3 are twisted in rotation in the same direction to form a finished steel cord, wherein the twist pitch of the steel wire single line 1 is 5-7 mm, the twist pitch of the inner circle steel wire strand 2 is 9-13 mm, and the twist pitch of the outer circle steel wire strand 2 is 15-19 mm.

[0028] Reference Figure 2 and Figure 3 As shown, in this embodiment: the diameter of the steel wire single wire 1 is 0.1mm, the lay pitch of the steel wire single wire 1 is 6mm, the twist direction of the steel wire single wire 1 is S twist, the diameter of the inner circle steel wire strand 2 is about 0.32mm, the lay pitch of the inner circle steel wire strand 2 is 11mm, the twist direction of the inner circle steel wire strand 2 is S twist, the diameter of the outer circle steel wire strand 3 is 0.65mm, the lay pitch of the outer circle steel wire strand 3 is 17mm, and the twist direction of the outer circle steel wire strand 3 is Z twist. Example

[0029] A steel cord for improving rubber layer penetration comprises a steel wire single line 1, an inner circle steel wire strand 2 and an outer circle steel wire strand 3, wherein the inner circle steel wire strand 2 is formed by six steel wire single lines 1 being twisted around a middle steel wire single line 1 along the same direction, the outer circle steel wire strand 3 is formed by three inner circle steel wire strands 2 being twisted in rotation in the same direction, and four outer circle steel wire strands 3 are twisted in rotation in the same direction to form a finished steel cord, wherein the twist pitch of the steel wire single line 1 is 5-7 mm, the twist pitch of the inner circle steel wire strand 2 is 9-13 mm, and the twist pitch of the outer circle steel wire strand 2 is 15-19 mm.

[0030] Reference Figure 2 and Figure 3As shown, in this embodiment: the diameter of the steel wire single wire 1 is 0.1mm, the lay pitch of the steel wire single wire 1 is 5mm, the twist direction of the steel wire single wire 1 is S twist, the diameter of the inner circle steel wire strand 2 is about 0.32mm, the lay pitch of the inner circle steel wire strand 2 is 9mm, the twist direction of the inner circle steel wire strand 2 is S twist, the diameter of the outer circle steel wire strand 3 is 0.65mm, the lay pitch of the outer circle steel wire strand 3 is 15mm, and the twist direction of the outer circle steel wire strand 3 is Z twist.

[0031] Embodiment 3: A steel cord for improving rubber layer penetration, comprising a steel wire single wire 1, an inner ring steel wire strand 2 and an outer ring steel wire strand 3, wherein the inner ring steel wire strand 2 is formed by six steel wire single wires 1 twisted around the middle steel wire single wire 1 along the same direction, and the outer ring steel wire strand 3 is formed by three inner ring steel wire strands 2 rotationally twisted around the same direction, and four outer ring steel wire strands 3 rotationally twisted along the same direction to form a finished steel cord, the twist length of the steel wire single wire 1 is 5-7mm, the twist length of the inner ring steel wire strand 2 is 9-13mm, and the twist length of the outer ring steel wire strand 2 is 15-19mm.

[0032] Reference Figure 2 and Figure 3 As shown, in this embodiment: the diameter of the steel wire single wire 1 is 0.1mm, the lay pitch of the steel wire single wire 1 is 7mm, the twist direction of the steel wire single wire 1 is S twist, the diameter of the inner circle steel wire strand 2 is about 0.32mm, the lay pitch of the inner circle steel wire strand 2 is 13mm, the twist direction of the inner circle steel wire strand 2 is S twist, the diameter of the outer circle steel wire strand 3 is 0.65mm, the lay pitch of the outer circle steel wire strand 3 is 19mm, and the twist direction of the outer circle steel wire strand 3 is Z twist.

[0033] The steel cord samples obtained in the above-mentioned embodiments 1, 2 and 3 are compared with the existing 6*3*4*0.22HE steel cord. The comparison data table is as follows:

[0034] The chart shows the performance comparison of steel cord

[0035] As can be seen from Table 1, the rubber penetration rate of the steel cord in Example 1 reaches 95, which can effectively improve the penetration of the rubber, and at the same time, the breaking force reaches 1050, which improves the safety and stability of the tire, and the bonding force reaches 1300, thereby making the steel cord more stable. At the same time, the diameter of the cord is smaller, which improves the overall space occupancy and the strength of the cord. In the case of inconvenience in carbon content and twist direction, by changing the diameter and twist pitch of the monofilament, the actual application strength of the steel cord can be effectively improved. At the same time, the increase in material leads to an increase in the density of the cord, which increases the overall weight and strength, and can meet the requirements of the tire for the strength of the cord during driving. By adopting different twisting methods of the outer ring Z twist, the overall twist force can be improved, and looseness caused by the same twist direction can be avoided, thereby improving the overall strength.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A steel cord for improving rubber layer penetration, comprising a steel wire single wire (1), an inner ring steel wire strand (2) and an outer ring steel wire strand (3), Features: The inner circle steel wire strand (2) is formed by six steel wire strands (1) twisted around a steel wire strand (1) in the middle along the same direction, the outer circle steel wire strand (3) is formed by three inner circle steel wire strands (2) twisted around the same direction, and the four outer circle steel wire strands (3) are twisted along the same direction to form a finished steel cord, the twist pitch of the steel wire strand (1) is 5-7 mm, the twist pitch of the inner circle steel wire strand (2) is 9-13 mm, and the twist pitch of the outer circle steel wire strand (3) is 15-19 mm.

2. A steel cord with improved rubber layer penetration according to claim 1, Features: The diameter of the steel wire single line (1) is 0.1 mm, and the lay length of the steel wire single line (1) is 6 mm.

3. A steel cord with improved rubber layer penetration according to claim 2, Features: The twist direction of the steel wire single line (1) is S twist.

4. A steel cord with improved rubber layer penetration according to claim 2, Features: The diameter of the inner circle steel wire strand (2) is approximately 0.32 mm, and the twist pitch of the inner circle steel wire strand (2) is 11 mm.

5. A steel cord with improved rubber layer penetration according to claim 4, Features: The twist direction of the inner ring steel wire strand (2) is S twist.

6. A steel cord with improved rubber layer penetration according to claim 1, Features: The diameter of the outer ring steel wire strand (3) is 0.65 mm, and the twist pitch of the outer ring steel wire strand (3) is 17 mm.

7. A steel cord with improved rubber layer penetration according to claim 6, Features: The twist direction of the outer ring steel wire strand (3) is Z twist.

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