Tire bead rubber core angle judgment device

Abstract

The utility model relates to a tire bead rubber core angle judgment device which comprises a base and a side plate, and the base is arranged along a horizontal plane; the first end of the side plate is connected with the base, an included angle exists between the first end and the base so as to form a containing space used for containing the tire bead rubber core, the second end of the side plate serves as a free end, the side plate is provided with a graduated scale capable of sliding relative to the side plate, the bottom face of the tire bead rubber core makes contact with the base, and the side face of the tire bead rubber core makes contact with the end of the graduated scale. By means of the tire bead rubber core angle adjusting device, the technical problems that in the prior art, due to the fact that the angle of a tire bead rubber core is unqualified, the tire bead rubber core and a steel wire ring are disengaged, the tire bead disengagement and even the tire burst phenomenon occur, and driving safety is endangered can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire production, and particularly relates to a device for judging the angle of a bead core rubber Background Art

[0002] Traditional semi-steel radial tires for cars usually consist of six main parts: tread, carcass, sidewall, belt layer, inner liner, and bead. A large number of endpoints gather at the bead part, such as carcass turn-up endpoints, bead filler endpoints, bead apex endpoints, bead core rubber endpoints, reinforcement layer endpoints, etc. Therefore, the bead part has characteristics such as stress concentration, high heat generation, and easy damage. The bead mainly includes a bead wire and a bead core rubber. The bead core rubber plays a role in rigidly supporting the bead, ensuring that the force acting on the wheel rim is not too large and protecting the bead. During the molding process, when the angle of the bead core rubber is too large or too small, it will cause the bead core rubber and the bead wire to become disengaged during bead pressing. After the bead core rubber and the bead wire are disengaged, bead disengagement will occur during tire use, resulting in tire blowout and endangering driving safety. Content of the Utility Model

[0003] In view of various deficiencies in the prior art, a device for judging the angle of a bead core rubber is proposed to solve the technical problem that in the prior art, due to the unqualified angle of the bead core rubber, the bead core rubber and the bead wire become disengaged, resulting in bead disengagement or even tire blowout, endangering driving safety.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A device for judging the angle of a bead core rubber, comprising:

[0006] A base, which is arranged along the horizontal plane;

[0007] And a side plate, the first end of the side plate is connected to the base, and there is an included angle between the first end and the base to form a placement space for accommodating the bead core rubber. The second end of the side plate is a free end. A scale that can slide relative to it is arranged on the side plate. The bottom surface of the bead core rubber contacts the base, and the side surface of the bead core rubber contacts the end of the scale and can push the scale to slide away from the placement space.

[0008] This technical solution is further arranged such that a through hole for installing the scale is opened on the side plate. A touch block movably connected to it is arranged at the end of the scale inside the placement space, and a limit block is arranged at the end of the scale outside the placement space.

[0009] This technical solution is further arranged such that a rotating shaft is arranged between the touch block and the end of the scale.

[0010] This technical solution is further configured such that a return spring is sleeved around the scale, and the end portions of the return spring are respectively connected to the side plate and the touch block.

[0011] This technical solution is further configured such that the scale is parallel to the base, and the scale is located at the 1 / 2 height of the bead core.

[0012] This technical solution is further configured such that a kidney-shaped hole is formed in the side plate along its length direction, and a mounting plate that can slide relative to it is provided in the kidney-shaped hole, and the through hole is located on the mounting plate.

[0013] This technical solution is further configured such that a handle is provided on the side plate or the base.

[0014] This technical solution is further configured such that anti-slip layers are laid on both the upper surface and the lower surface of the base.

[0015] The beneficial effects of the present utility model are as follows:

[0016] By providing the side plate and the base to form a placement space for placing the bead core, it is convenient to judge the angle of the bead core; by the length value of the scale exposed from the side plate, the angle of the bead core is judged, avoiding the use of beads with unqualified angles, thereby avoiding the occurrence of bead voids or even tire blowouts, and improving the safety performance of the tire and the driving safety. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the bead core angle judging device in the embodiment of the present utility model;

[0018] Figure 2 is an assembly schematic diagram of the side plate and the mounting plate in the embodiment of the present utility model;

[0019] Figure 3 is a schematic diagram that the angle of the bead core in the embodiment of the present utility model is equal to the included angle between the side plate and the base;

[0020] Figure 4 is a schematic diagram that the angle of the bead core in the embodiment of the present utility model is less than the included angle between the side plate and the base;

[0021] Figure 5 is a schematic diagram that the angle of the bead core in the embodiment of the present utility model is greater than the included angle between the side plate and the base.

[0022] In the drawings: 1. Base; 2. Side plate; 3. Scale; 4. Touch block; 5. Limit block; 6. Return spring; 7. Mounting plate; 8. Kidney-shaped hole; 9. Through hole; 10. Mounting hole; 11. Bead core. Detailed Embodiments

[0023] To enable those skilled in the art to better understand the technical solution of the present utility model, the following clearly and completely describes the technical solution of the present utility model in conjunction with the accompanying drawings of the present utility model. Based on the embodiments in this application, other similar embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. In addition, the directional terms mentioned in the following embodiments, such as "upper", "lower", "left", "right", etc., are only references to the directions in the accompanying drawings. Therefore, the directional terms used are for illustration rather than limitation of the present invention.

[0024] The following further describes the present utility model in conjunction with the accompanying drawings and preferred embodiments.

[0025] According to an embodiment of the present utility model, a bead core angle judging device is provided. Please refer to Figure 1 and Figure 3 , which includes a base 1 and a side plate 2. Among them, the base 1 is arranged along the horizontal plane; the first end of the side plate 2 is connected to the base 1, and there is an included angle between the first end and the base 1 to form a placement space for accommodating the bead core 11. The second end of the side plate 2 is a free end. A scale 3 that can slide relative to it is arranged on the side plate 2. The bottom surface of the bead core 11 contacts the base 1, and the side surface of the bead core 11 contacts the end of the scale 3 and can push the scale 3 to slide in a direction away from the placement space.

[0026] It should be noted that by setting the side plate 2 and the base 1 to form a placement space for placing the bead core 11, it is convenient to judge the angle of the bead core; the side surface of the bead core 11 pushes the scale 3 to slide in a direction away from the placement space, causing the scale to expose from the side plate. By the length value of the scale exposed from the side plate, the angle of the bead core 11 is judged, avoiding the use of bead cores with unqualified angles, and further avoiding phenomena such as bead voiding and even tire bursting, thereby improving the safety performance of the tire and driving safety.

[0027] Preferably, the side plate 2 and the base 1 are made of iron plates, and the thickness of both is not less than 2 mm to prevent deformation; the length of the side plate 2 is not less than the height of the bead core 11, and the length of the base 1 is not less than the bottom width of the bead core 11.

[0028] In the bead core angle judging device of this embodiment, please refer to Figure 1 and Figure 2 , a through hole 9 for installing the scale 3 is opened on the side plate 2. A touch block 4 movably connected to it is arranged at the end of the scale 3 located inside the placement space, and a limit block 5 is arranged at the end of the scale 3 located outside the placement space.

[0029] It should be noted that both the touch block 4 and the limit block 5 can prevent the scale 3 from falling off the through hole 9. The touch block 4 is movably connected to the scale 3, and the inclination of the touch block 4 relative to the scale 3 can be adjusted according to the side inclination of the bead core 11, so as to improve the fitting degree between the touch block 4 and the side of the bead core 11 and improve the judgment accuracy. In the initial state, the limit block 5 abuts against the side plate 2. In the use state, the side of the bead core 11 pushes the scale 3 to slide away from the placement space. Correspondingly, the distance between the limit block 5 and the side plate 2 increases, and this distance is the length value of the scale exposed from the side plate.

[0030] Specifically, a rotating shaft is provided between the touch block 4 and the end of the scale 3. By providing the rotating shaft, the touch block 4 is movably connected to the scale 3.

[0031] In the bead core angle judgment device of this embodiment, please refer to Figure 1 and Figure 2 . A return spring 6 is sleeved outside the scale 3, and the end parts of the return spring 6 are respectively connected to the side plate 2 and the touch block 4.

[0032] It should be noted that after the bottom surface of the bead core 11 contacts the base 1, the side of the bead core 11 contacts and fits with the touch block 4, applying a force to the bead core 11 to make it approach the side plate 2. At this time, the bead core 11 pushes the scale 3 to slide away from the placement space, and the length value of the scale 3 exposed from the side plate 2 is read.

[0033] In the bead core angle judgment device of this embodiment, please refer to Figure 1 and Figure 3 . The scale 3 is parallel to the base 1, and the scale 3 is located at the 1 / 2 height of the bead core 11.

[0034] It should be noted that the scale 3 is a cylindrical scale. When the angle of the bead core deviates from the design value, the angle deviation in the upper and middle parts of the bead core is more obvious. Therefore, the scale 3 is located at the 1 / 2 height of the bead core 11.

[0035] In the bead core angle judgment device of this embodiment, please refer to Figure 1 and Figure 2 . A waist-shaped hole 8 is opened on the side plate 2 along its length direction, and a mounting plate 7 that can slide relative to it is arranged in the waist-shaped hole 8, and the through hole 9 is located on the mounting plate 7.

[0036] It should be noted that through holes 9 are provided on the mounting plate 7 for mounting the scale 3; mounting holes 10 are provided on the mounting plate 7 for mounting bolts; the mounting plate 7 drives the scale 3 to slide inside the waist-shaped hole 8 until the scale 3 is located at half of the height of the bead core 11, and is locked by bolts and nuts.

[0037] During use, when the distance between the side surface of the bead core 11 and the side plate 2 is the same, it indicates that the angle of the bead core 11 is equal to the included angle between the side plate 2 and the base 1. Please refer to Figure 3 ; when the distance between the bottom of the side surface of the bead core 11 and the side plate 2 is small, while the distance between the top of the side surface of the bead core 11 and the side plate 2 is large, it indicates that the angle of the bead core 11 is less than the included angle between the side plate 2 and the base 1. Please refer to Figure 4 ; according to the length value of the scale 3 exposed outside the side plate 2, calculate the actual angle of the bead core 11; when the distance between the bottom of the side surface of the bead core 11 and the side plate 2 is large, while the distance between the top of the side surface of the bead core 11 and the side plate 2 is small, it indicates that the angle of the bead core 11 is greater than the included angle between the side plate 2 and the base 1. Please refer to Figure 5 ; it is necessary to replace the device with a larger included angle between the side plate 2 and the base 1 to determine the actual angle of the bead core 11.

[0038] Preferably, the included angle between the side plate 2 and the base 1 is 80°, and 80° is the basic angle. Different specifications of tires have different required angles for the bead core 11. To improve the versatility of the device, when the required angle of the bead core 11 is less than 80°, the actual angle of the bead core 11 is determined by reading the length value of the scale 3 exposed outside the side plate 2; when the required angle of the bead core 11 is greater than 80°, the device needs to be replaced. Before use, apply a force to the scale 3 to make the return spring 6 reach the maximum compression amount, and record the reference length value of the scale 3 exposed outside the side plate 2, which corresponds to 80°. During use, apply a force to the scale 3 until its position is fixed and no longer moves, record the length value of the scale 3 exposed outside the side plate 2, and obtain the actual angle of the bead core 11 based on this length value, this reference length value, and 80°.

[0039] In the bead core angle judgment device of this embodiment, please refer to Figure 1 and Figure 2 ; a handle is provided on the side plate 2 or the base 1, which is convenient for carrying or hanging.

[0040] In the bead core angle judgment device of this embodiment, please refer to Figure 1 and Figure 2 ; anti-slip layers are provided on both the upper surface and the lower surface of the base 1. Specifically, the anti-slip layer is preferably a rubber anti-slip layer to increase the stability of the device.

[0041] The above has given a detailed description of the present utility model. As described above, it is only the preferred embodiment of the present utility model, and it cannot limit the scope of implementation of the present utility model. That is, all equal changes and modifications made according to the scope of this application should still fall within the scope covered by the present utility model.

Claims

1. A device for determining the angle of a tire bead core, characterized in that: include: A base, the base being arranged along a horizontal plane; and a side plate, wherein the first end of the side plate is connected to the base, and an angle is formed between the first end and the base to form a placement space for accommodating the tire bead rubber core, the second end of the side plate serves as a free end, and the side plate is provided with a scale that can slide relative to it, the bottom surface of the tire bead rubber core contacts the base, and the side surface of the tire bead rubber core contacts the end of the scale, and can push the scale to slide in a direction away from the placement space.

2. The bead rubber core angle determination device according to claim 1, characterized in that: The side plate is provided with a through hole for installing the scale, the end of the scale located inside the placement space is provided with a touch block movably connected thereto, and the end of the scale located outside the placement space is provided with a limit block.

3. The bead rubber core angle determination device according to claim 2, characterized in that: A rotating shaft is arranged between the touch block and the end of the scale.

4. The bead rubber core angle determination device according to claim 2 or 3, characterized in that: A reset spring is sleeved on the outer periphery of the scale, and ends of the reset spring are respectively connected to the side plate and the touch block.

5. The bead rubber core angle determination device according to claim 4, characterized in that: The scale is parallel to the base and is located at 1 / 2 of the height of the tire bead rubber core.

6. The bead rubber core angle determination device according to claim 2, characterized in that: The side plate is provided with a waist hole along its length direction, a mounting plate which can slide relative to the waist hole is arranged in the waist hole, and the through hole is located on the mounting plate.

7. The bead rubber core angle determination device according to claim 1, characterized in that: A handle is provided on the side plate or the base.

8. The bead rubber core angle determination device according to claim 1, characterized in that: The upper surface and the lower surface of the base are both provided with an anti-slip layer.

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