Pre-warping device for solving jumper of steel wire with special-shaped section

Abstract

The utility model relates to a pre-warping device for solving the problem of wire jumping of a steel wire with a special-shaped section, and belongs to the field of tire production. A pre-warping device is installed between the magnetic plate and the warping roller and composed of a first roller and a second roller which are parallel to the warping roller, the first roller is a flat roller which can rotate freely and is smooth in surface, the second roller is of a three-section structure which is provided with a continuous groove in the roller surface and can rotate freely, the middle section of the second roller is of a fixing structure which can rotate independently and is provided with a groove, and the middle section of the second roller is provided with a groove. The two sections of the edge portion of the second roller are of a lamellar structure capable of rotating independently, the lamellar structure is formed by overlapping replaceable continuous lamellar structures, and a circular groove is machined in the outer circumferential face of each lamellar structure. According to the pre-warping device, the steel wire with the special-shaped section is enabled to stay in the warping roller more stably during rolling, on one hand, the problem that the steel wire jumps out due to structural factors is solved, on the other hand, sliding friction between the steel wire and the wire combing plate is changed into rolling friction between the steel wire and the pre-warping device, and the problem of abrasion of a plating layer is avoided.

Description

Technical Field

[0001] The utility model relates to the field of tire production, and more specifically, it is a pre-warping device for solving the problem of wire jumping of special-shaped cross-section wires. Background Art

[0002] As is well known, in the development process of the tire industry, the use of open-structured wires has been increasing year by year due to their excellent rubber penetration performance, but the calendering production is more difficult. Due to its special-shaped structure, during the calendering process, at different positions in the groove, the shape is also different, and the wire is likely to jump out of the groove directly. To solve the problem of the wire "jumping out", two wire combing plates are used to lock the wire and suppress the horizontal shaking of the wire. Although the wire combing plate can relieve the problem of the wire "jumping out", it will have sliding friction with the wire, resulting in the problem of wear of the wire surface coating. It will cause the adhesion between the wire and the rubber compound to decrease, and the stability of the quality of the final calendered cord cannot be guaranteed. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a pre-warping device for solving the problem of wire jumping of special-shaped cross-section wires, so as to solve the problems of wire jumping and coating wear that are likely to occur to special-shaped cross-section wires during the calendering process.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a pre-warping device for solving the problem of wire jumping of special-shaped cross-section wires, which uses a magnetic plate and a warping roller for warping. The feature is that a pre-warping device is installed between the magnetic plate and the warping roller. The pre-warping device is composed of a #1 roller and a #2 roller arranged parallel to the warping roller. The #1 roller is a smooth flat roller that can rotate freely, and the #2 roller is a three-section structure with continuous grooves on the roller surface and can rotate freely. The middle section of the #2 roller is a fixed structure with grooves that can rotate independently, and the two side sections of the #2 roller are lamellar structures that can rotate independently. The lamellar structure is composed of continuous sheet-like structures that can be replaced and stacked together, and circular grooves are processed on the outer circumferential surface of each sheet-like structure; the wire bypasses the top of the #1 roller and then bypasses the bottom of the #2 roller, and adopts a crossed form between the #1 roller and the #2 roller. When in use, the inclination angle of each wire is controlled within a certain range to ensure uniform wire stress.

[0005] The relative position of the pre-warping device in the horizontal direction needs to meet: the center distance between the #1 roller and the #2 roller is A2, and A2 = A * (0.2 - 0.25); the center distance between the #2 roller and the warping roller is A1, and A1 = A * (0.5 - 0.55), where A is the distance between the end of the magnetic plate and the center of the warping roller.

[0006] For the described pre-warping device, its relative position in the vertical direction is determined by the wire routing angle and needs to satisfy: α = 5 - 12°, β = 20 - 25°, γ = 2 - 5°. Among them, α is the angle with the horizontal direction after passing through the 2# roller, β is the angle with the horizontal direction when the wire crosses between the 1# roller and the 2# roller, and γ is the angle with the horizontal direction after the wire is lifted by the 1# roller.

[0007] The width of the middle section of the 2# roller is W1 and satisfies: W1 = B * (0.6 - 0.7). Among them, B is the calendering width, and the width direction is parallel to the warping roller and the pressure roller used for calendering.

[0008] The width of the two edge sections of the 2# roller is W2 and satisfies: W2 = B * (0.15 - 0.2). Among them, B is the calendering width, and the width direction is parallel to the warping roller and the pressure roller used for calendering.

[0009] The width of the groove is L1, the depth is H1, and the center distance between adjacent sheet-like structures is C1, and it satisfies L1 = D * (1.05 - 1.1), H1 = D * (1.1 - 1.2), C1 = L1 * (1.2 - 1.3). Among them, D is the effective diameter of the wire.

[0010] The beneficial effect of the present utility model is that it promotes the special-shaped cross-section wire to stay more stably in the warping roller during calendering. On the one hand, it solves the problem of the wire "jumping out" caused by structural factors. On the other hand, it changes the sliding friction between the wire and the wire combing plate into rolling friction with the pre-warping device, avoiding the problem of coating wear. Description of the Drawings

[0011] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0012] Figure 1 is a schematic diagram of the pre-warping device in the embodiment of the present utility model;

[0013] Figure 2 is a schematic diagram of the cross-section comparison between the ordinary structure and the special-shaped structure wire;

[0014] Figure 3 is a schematic diagram of the comparison of different morphological changes of the ordinary and special-shaped structure wires when traveling in the groove;

[0015] Figure 4 is a schematic diagram of the 2# roller of the pre-warping device;

[0016] Figure 5 is Figure 4 an enlarged view of part P in

[0017] Figure 6 is a schematic diagram of the angle between the wire and the vertical direction of the warping roller after passing through the 2# roller.

[0018] In the figure, 1. magnetic plate, 2. No. 1 roller, 3. No. 2 roller, 4. warping roller, 5. groove, 6. sheet structure, 7. steel wire. Specific implementation mode

[0019] In order to enable the personnel in the field to better master the technical solution of the present utility model, the following combines the description and drawings of the present utility model to give a complete description of the solution of the present utility model. Based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative labor shall fall within the scope of protection of the present application.

[0020] Warping is carried out using the magnetic plate 1 and the warping roller 4. A pre-warping device is installed between the magnetic plate 1 and the warping roller 4. The pre-warping device is composed of the No. 1 roller 2 and the No. 2 roller 3 arranged parallel to the warping roller 4. The No. 1 roller 2 is a freely rotatable and smooth-surfaced flat roller, and the No. 2 roller 3 is a three-section structure with continuous grooves on the roller surface and can rotate freely. The middle section of the No. 2 roller 3 is a fixed structure with grooves that can rotate independently, and the two side sections of the No. 2 roller 3 are lamellar structures that can rotate independently. The lamellar structures are stacked by replaceable continuous sheet structures 6. Circular grooves 5 are processed on the outer circumferential surface of each sheet structure 6; the steel wire 7 passes around the top of the No. 1 roller 2 and then around the bottom of the No. 2 roller 3, and is in a form of crossing through between the No. 1 roller 2 and the No. 2 roller 3. When in use, the inclination angle of each steel wire 7 is controlled within a certain range to ensure uniform stress of the steel wire 7.

[0021] The relative position of the pre-warping device in the horizontal direction needs to meet: the center distance between the No. 1 roller 2 and the No. 2 roller 3 is A2, and A2 = A*(0.2 - 0.25); the center distance between the No. 2 roller 3 and the warping roller 4 is A1, and A1 = A*(0.5 - 0.55), where A is the distance between the end of the magnetic plate 1 and the center of the warping roller 4.

[0022] The relative position of the pre-warping device in the vertical direction is determined by the wire routing angle of the steel wire 7 and needs to meet: α = 5 - 12°, β = 20 - 25°, γ = 2 - 5°, where α is the angle with the horizontal direction after passing through the No. 2 roller 3, β is the angle with the horizontal direction when the steel wire 7 crosses between the No. 1 roller 2 and the No. 2 roller 3, and γ is the angle with the horizontal direction after the steel wire 7 is lifted by the No. 1 roller 2.

[0023] The width of the middle section of the No. 2 roller 3 is W1, and W1 = B*(0.6 - 0.7), where B is the calendering width, and the width direction is parallel to the warping roller 4 and the pressure roller used for calendering.

[0024] The width of the two sections at the edge of the 2# roller 3 is W2, and it satisfies: W2 = B * (0.15 - 0.2), where B is the calendering width, and the width direction is parallel to the warping roller 4 and the pressure roller used for calendering.

[0025] The width of the groove 5 is L1, the depth is H1, and the center distance of the adjacent sheet-like structures 6 is C1, and it satisfies L1 = D * (1.05 - 1.1), H1 = D * (1.1 - 1.2), C1 = L1 * (1.2 - 1.3), where D is the effective diameter of the steel wire 7.

[0026] The utility model first uses a flat roller to preliminarily shape the steel wire, and then uses the 2# roller for final shaping, ensuring that the steel wire does not move horizontally before entering the warping roller. At the same time, the sliding friction in the existing pre-shaping process is adjusted to rolling friction, minimizing the coating wear to the greatest extent.

Claims

1. A pre-warping device for solving the problem of wire jump of special-shaped cross-section steel wire, which uses a magnetic plate and a warping roller for warping, and is characterized in that: A pre-warping device is installed between the magnetic plate and the warping roller. The pre-warping device consists of a 1# roller and a 2# roller arranged parallel to the warping roller. The 1# roller is a freely rotatable flat roller with a smooth surface. The 2# roller is a three-section structure with continuous grooves on the roller surface and can rotate freely. The middle section of the 2# roller is a fixed structure with grooves that can rotate independently. The two side sections of the 2# roller are a sheet structure that can rotate independently. The sheet structure is composed of replaceable continuous sheet structures stacked together.

2. The pre-warping device for solving the problem of wire jump of special-shaped cross-section steel wire according to claim 1, characterized in that The relative position of the pre-warping device in the horizontal direction must satisfy: the center distance between the 1# roller and the 2# roller is A2, and satisfies A2=A*(0.2~0.25); the center distance between the 2# roller and the warping roller is A1, and satisfies A1=A*(0.5~0.55), wherein A is the distance between the end of the magnetic plate and the center of the warping roller.

3. The pre-warping device for solving the problem of wire jump of special-shaped cross-section steel wire according to claim 1, characterized in that The relative position of the pre-warping device in the vertical direction is determined by the wire routing angle, which must meet the following conditions: α=5-12°, β=20-25°, and γ=2-5°, wherein α is the angle between the wire and the horizontal direction after passing through the 2# roller, β is the angle between the wire and the horizontal direction when the wire crosses between the 1# roller and the 2# roller, and γ is the angle between the wire and the horizontal direction after being lifted by the 1# roller.

4. The pre-warping device for solving the problem of wire jump of special-shaped cross-section steel wire according to claim 1, characterized in that The width of the middle section of the 2# roller is W1, and satisfies: W1=B*(0.6-0.7), wherein B is the calendering width, and the width direction is parallel to the warping roller and pressure roller used for calendering.

5. The pre-warping device for solving the problem of wire jump of special-shaped cross-section steel wire according to claim 1, characterized in that The width of the two sections of the 2# roller edge is W2, and satisfies: W2=B*(0.15~0.2), wherein B is the calendering width, and the width direction is parallel to the warping roller and pressure roller used for calendering.

6. The pre-warping device for solving the problem of wire jump of special-shaped cross-section steel wire according to claim 1, characterized in that The groove width is L1, the depth is H1, the center distance between adjacent sheet structures is C1, and satisfies L1=D*(1.05~1.1), H1=D*(1.1~1.2), C1=L1*(1.2~1.3), wherein D is the effective diameter of the steel wire.

Images