quick measuring disc for tire blank material joint angle

Abstract

This utility model discloses a rapid measuring disc for tire blank material joint angles, comprising a transparent disc body sized to fit on the tire blank inlet. The disc body is printed with 360-degree circumferential angle scale lines and features a marking system. This system includes a reference marking area with a zero-degree scale line and multiple target marking areas distributed along the circumference. The target marking areas include at least a 120° C-type sidewall judgment area, a 180° D-type judgment area, and a 240° C-type tread judgment area. A handle is located at the center of the disc body, and hanging holes and measuring label positions are provided on the edges. This utility model integrates precise measurement and rapid judgment functions. Operators can quickly determine whether the material joint distribution type meets process standards through simple alignment and observation, while avoiding direct contact with the tire blank, effectively improving detection efficiency and accuracy, and ensuring product quality.

Description

Technical Field

[0001] This utility model relates to inspection fixtures in tire manufacturing processes, specifically to a rapid measuring disc for tire blank material joint angles used to quickly detect whether the relative angle distribution of various material joints on the tire blank conforms to process standards. Background Technology

[0002] In the tire blank forming process, the joints of materials such as the tire carcass, tread, sidewall, and liner must be overlapped according to a strict relative angular distribution. The accuracy of this angular distribution is crucial to the dynamic balance and uniformity of the tire.

[0003] Currently, there is a lack of specialized testing tools on site. Operators mainly rely on visual inspection and experience to estimate the joint angle, making it difficult to accurately determine whether it meets process standards. This results in inaccurate test results and low efficiency. In addition, direct hand contact with the tire blank poses a risk of introducing contaminants.

[0004] Therefore, there is an urgent need in this field for an integrated chemical apparatus that can simultaneously achieve accurate measurement of joint angles and rapid determination of distribution types, in order to improve product quality and production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a rapid measuring disc for the joint angle of tire blank material, which integrates the dual functions of accurate measurement and rapid judgment, aiming to overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rapid measuring disc for tire carcass material joint angles includes a disc body made of a transparent material. The diameter of the disc body is designed to be greater than 20 inches, allowing it to be stably mounted on the tire carcass bead of most tire carcasses. The disc body is printed with 360-degree circumferential angle graduations, forming the basis for precise measurement functionality.

[0008] This invention integrates a marking system based on the angle scale lines to achieve rapid determination. The system includes a reference marking area located at the zero-degree scale line and multiple target marking areas distributed along the circumference. The reference marking area contains composite markings for initial positioning; the target marking areas include regions for C-type distribution determination and regions for D-type distribution determination.

[0009] The size of the disc is configured to be stably placed on the tire carcass bead of the tire blank; the disc is printed with 360-degree circumferential angle scale lines and is equipped with a marking system for rapid determination; the marking system includes a reference marking area set at the zero-degree scale line of the disc, and multiple target marking areas distributed along the circumferential direction; the reference marking area includes a composite marking for indicating the initial positioning of the material joint;

[0010] The target identification area includes a first area dedicated to determining C-type distribution and a second area dedicated to determining D-type distribution; by aligning any material connector with the reference identification area and observing the relative position of the corresponding other connector with the target identification area, the distribution type of the material connector can be directly determined.

[0011] In some embodiments, the first region dedicated to determining the C-type distribution is located at a 120-degree mark on the disk.

[0012] In some embodiments, the second region dedicated to determining the D-type distribution is located at the 180-degree mark on the disk.

[0013] In some implementations, the target identification area also includes a third region dedicated to determining the C-type distribution.

[0014] In some embodiments, the third region dedicated to determining the C-type distribution is located at the 240-degree mark on the disk.

[0015] In some embodiments, the diameter of the disk is greater than twenty inches.

[0016] In some embodiments, a lifting handle is provided at the center of the disc.

[0017] In some embodiments, the disc body is also provided with hanging holes for storage and measuring label attaching positions for attaching management labels.

[0018] In some embodiments, the first region dedicated to C-type distribution determination is located at a 120-degree scale position and is dedicated to the tire sidewall joint; the second region dedicated to D-type distribution determination is located at a 180-degree scale position; the target marking area also includes a third region located at a 240-degree scale position and dedicated to C-type distribution determination of the tire tread joint.

[0019] In some embodiments, the disk is divided into four equal regions by marking lines.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This invention allows for precise angle readings using scale lines and joint type identification via a marking system, simultaneously meeting the needs of quantitative testing and rapid quality inspection. The marking system visualizes and streamlines complex process standards, eliminating the need for operators to memorize specific angle values; they can simply align and observe to draw conclusions, significantly reducing the operational threshold and error rate. The transparent disc and central handle design enable non-contact inspection of the tire blank, avoiding hand contamination. Attached Figure Description

[0022] Figures 1-3 This is a schematic diagram of the structure of the quick-measuring disc for the joint angle of the tire blank material of this utility model.

[0023] In the diagram: 1. Disc; 2. Angle scale lines; 3. Handle; 4. Reference marking area; 51. First area (C type, sidewall); 52. Second area (D type); 53. Third area (C type, tread); 6. Hanging hole; 7. Marking line. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Please see Figures 1-3 The quick measuring disc for the joint angle of the tire blank material provided by this utility model preferably has a disc body 1 made of transparent acrylic material.

[0026] The 22-inch diameter design accommodates mainstream tire sizes from 16 to 20 inches. It ensures the measuring disc rests on the bead of most tire blanks, preventing it from falling inside, facilitating operation and movement of the measuring device. The disc body 1 is printed with white 360-degree circumferential angle scale lines 2, providing a clear contrast to the black tire blank for easy reading. Aligning the 0-degree scale of the measuring disc with one joint, and then directly reading the scale value corresponding to the other joint, the specific angle between the two joints can be obtained. If the process standard requires a "tread joint angle of 190°", the operator can use this function to verify whether the actual angle is 189°, 190°, or 191°.

[0027] A handle 3 is fixedly installed at the center of the disc 1, making it convenient for the operator to lift and move the entire measuring disc. The process specifications stipulate that the blank material should not be directly touched to prevent dust or sweat from the hands from causing defects on the blank.

[0028] The upper edge of the disc 1 has a hanging hole 6 for hanging and storing when not in use, which facilitates unified management and prevents the measurement label from sticking and affecting the measurement.

[0029] Typically, single-stage molding machines and two-stage molding machines have different requirements for the distribution of the carcass material due to differences in molding processes, resulting in C-type joint distribution and D-type joint distribution.

[0030] A C-type joint refers to the joints of two tire carcass fabrics that overlap each other, and in cross-section, the joint resembles the letter "C". A D-type joint refers to the joints of two tire carcass fabrics that are directly butted together, and in cross-section, the two ends of the joint resemble two back-to-back letters "D".

[0031] In some embodiments of this utility model, the disc 1 is further provided with an marking system. A reference marking area 4 and a target marking area are provided at the zero-degree scale position. The reference marking area 4 is printed with the words "C-type / D-type," serving as a universal alignment starting point when inspecting materials such as the inner liner and tread. The target marking area includes three specific positions: at the 120° scale position, a first area 51 is provided, marked "C-type tire sidewall," specifically for determining the C-type distribution of the tire sidewall joint. At the 180° scale position, a second area 52 is provided, marked "D-type," specifically for determining the D-type distribution (typically used for inner liners and treads). At the 240° scale position, a third area 53 is provided, marked "C-type tire tread," specifically for determining the C-type distribution of the tire tread joint.

[0032] For example, taking the inspection of tire tread joints as an example, a method for measuring angles is provided: 1) The operator holds handle 3 and gently places the measuring disc on the bead of the tire blank. 2) Locate one joint on the tread and rotate the measuring disc to align it with the reference marking area 4 (0° scale). Keeping the measuring disc stationary, search for the other joint on the tread along the circumference. 3) Judgment: If the joint is located within the second area 52 (D-type area) at 180°, it is judged as a qualified D-type distribution. If the joint is located within the third area 53 (C-type tread) at 240°, it is judged as a qualified C-type distribution. If the joint deviates significantly from either of these areas, it is judged as unqualified. When it is necessary to record the specific deviation value, the precise angle value of the corresponding scale line of the joint can be read. After the inspection is completed, lift the measuring disc using handle 3 and suspend it for storage through the hanging hole 6.

[0033] During this operation, the operator does not need to know whether the specific standard angle is 190° or 170°, nor does he need to calculate the difference. He only needs to perform a simple alignment-observation action to obtain a conclusion of "pass / fail" or "it is type C / it is type D". This greatly lowers the operational threshold, improves inspection efficiency and consistency, and ensures data accuracy.

[0034] In some preferred embodiments of this utility model, in order to enhance the visual guidance function of the marking system, the disc body 1 is provided with marking lines 7 extending outward from the center. These marking lines precisely pass through four key scale points: 0° (reference marking area 4), 120° (first area 51), 180° (second area 52), and 240° (third area 53), thereby visually dividing the disc body into four functional quadrants.

[0035] Each sector defined by these marking lines is directly associated with the baseline or target area. The clear quadrant division avoids the possibility of misreading diagonal areas during rapid detection (such as misreading 120° as 240°), because each key area is clearly defined by independent marking lines.

[0036] For example, taking the inspection of tire tread joints as an example, a method for measuring the angle using marking lines is provided: 1) The operator holds handle 3 and gently places the measuring disc on the tire bead. 2) Locate one joint on the tread and rotate the measuring disc to align it with the reference marking area 4 (0° scale) and the corresponding marking line. 3) Keeping the measuring disc stationary, locate the other joint on the tread along the circumference. The operator's line of sight can easily follow the marking lines in the 180° or 240° direction to quickly locate the corresponding D-type or C-type judgment area. 4) If the joint is located in the second area 52 (D-type area) where the 180° marking line is located, it is judged as a qualified D-type distribution. If the joint is located in the third area 53 (C-type - tread) where the 240° marking line is located, it is judged as a qualified C-type distribution. If the joint deviates significantly from these two areas indicated by the marking lines, it is judged as unqualified. 5) When it is necessary to record the specific deviation value, the precise angle value of the corresponding scale line of the joint can be read. 6) After the test is completed, lift the measuring plate with handle 3 and hang it through the hanging hole 6.

[0037] Optionally, an anti-slip rubber ring can be added to the edge of the disc to enhance its stability when placed on the tire carcass.

[0038] The marking area can be printed with fluorescent material to adapt to different lighting conditions.

[0039] A mobile application can be developed to automatically record and analyze angle data by scanning reference points on the measuring disc.

[0040] For tires of special specifications, a series of measuring discs can be designed to cover different needs from 12 inches to 26 inches.

[0041] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A rapid measuring disc for the joint angle of tire blank material, characterized in that: The measuring disc includes a disc body made of transparent material, the size of which is configured to be stably placed on the tire bead of the tire carcass; the disc body is printed with 360-degree circumferential angle scale lines and is equipped with a marking system for rapid determination; the marking system includes a reference marking area set at the zero-degree scale line of the disc body, and multiple target marking areas distributed along the circumference; the reference marking area includes a composite mark for indicating the initial positioning of the material joint; The target identification area includes a first area dedicated to determining C-type distribution and a second area dedicated to determining D-type distribution; by aligning any material connector with the reference identification area and observing the relative position of the corresponding other connector with the target identification area, the distribution type of the material connector can be directly determined.

2. The green material joint angle quick measurement disc of claim 1, wherein: The first region specifically for determining the C-type distribution is set at the 120-degree mark on the disk.

3. The green material joint angle quick measurement disc of claim 1, wherein: The second region specifically for determining the D-type distribution is located at the 180-degree mark on the disk.

4. The quick measuring disc for the joint angle of the tire blank material according to claim 1, characterized in that: The target identification area also includes a third area specifically for determining the C-type distribution.

5. The quick measuring disc for the joint angle of the tire blank material according to claim 4, characterized in that: The third region, specifically for determining the C-type distribution, is located at the 240-degree mark on the disk.

6. The rapid measuring disc for the joint angle of the tire blank material according to claim 1, characterized in that: The diameter of the disk is greater than twenty inches.

7. The rapid measuring disc for the joint angle of the tire blank material as described in claim 1, characterized in that: A lifting handle is provided at the center of the disc.

8. The rapid measuring disc for the joint angle of the tire blank material according to claim 1, characterized in that: The disc body is also provided with hanging holes for storage and measuring label attaching positions for attaching management labels.

9. The quick-measuring disc for the joint angle of the tire blank material according to claim 1, characterized in that: The first area dedicated to determining the C-type distribution is located at a 120-degree scale position and is specifically for the tire sidewall joint; the second area dedicated to determining the D-type distribution is located at a 180-degree scale position; the target marking area also includes a third area located at a 240-degree scale position and dedicated to determining the C-type distribution of the tire tread joint.

10. The quick measuring disc for the joint angle of the tire blank material according to claim 1, characterized in that: The disk is divided into four equal regions by marking lines.

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