Sizing material joint detection device and tire building machine

Abstract

The utility model provides a rubber material joint detection device and a tire building machine. The rubber material joint detection device comprises an extrusion device, the extrusion device is provided with a movably-arranged extrusion part, and the extrusion part can extrude the joint position of a rubber material according to preset pressure and enables the joint position to deform; and the detection piece can detect the position of the extrusion part so as to judge the movement distance of the extrusion part. The cap strip joint lap joint detection device solves the problem that whether cap strip joint lap joint is firm and reliable or not cannot be accurately detected in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of tire processing technology, and more specifically, to a rubber joint detection device and a tire forming machine. Background Technology

[0002] Crown strips are a crucial component of semi-steel radial tires. When one roll of crown strips is used up, the beginning of another roll needs to be joined to the end of the previous roll. The crown strip joint is an overlap, and the strength and reliability of this overlap are paramount. If it's not properly joined, subsequent processes cannot proceed; if the overlap is weak, the high tension of the crown strip during subsequent conveying and bonding processes will cause the joint to separate, requiring the forming machine to be stopped, impacting production efficiency. Currently, crown strip joint inspection typically involves using inspection components to directly check the joint area. This method is effective in detecting whether the joint is overlapped, but its effectiveness in determining the quality of the overlap itself is relatively poor. Utility Model Content

[0003] The main purpose of this invention is to provide a rubber joint detection device and a tire forming machine to solve the problem in the prior art that it is impossible to accurately detect whether the overlap of the crown strip joint is firm and reliable.

[0004] To achieve the above objectives, according to one aspect of the present invention, a rubber joint detection device is provided, comprising: an extrusion device having an extrusion section movably disposed thereon, the extrusion section being able to extrude the joint position of the rubber material according to a preset pressure and deform the joint position; and a detection element being able to detect the position of the extrusion section to determine the movement distance of the extrusion section.

[0005] Furthermore, the extrusion section and the testing component are located on opposite sides of the rubber material surface.

[0006] Furthermore, the connection between the extrusion section and the test piece passes through the joint location.

[0007] Furthermore, the testing component is a contact-type testing switch. When the connector position is unqualified, the extrusion part breaks through the connector position and makes contact with the testing component.

[0008] Furthermore, the rubber joint detection device also includes a pressing device, which is located on the conveying path of the rubber and can press the rubber.

[0009] Furthermore, there are multiple pressing devices, and pressing devices are provided on both sides of the extrusion device along the conveying direction of the rubber material.

[0010] Furthermore, the extrusion device includes: an extrusion drive having an extrusion section; and a pressure roller rotatably disposed at the end of the extrusion section, the extrusion section extruding the rubber material via the pressure roller.

[0011] Furthermore, the extrusion device also includes a fixed frame on which the extrusion drive is mounted.

[0012] Furthermore, the extrusion drive is a cylinder, the extrusion part is the cylinder rod, and the movement trajectory line of the cylinder rod is perpendicular to the surface of the rubber material.

[0013] According to another aspect of the present invention, a tire forming machine is provided, including the above-mentioned rubber joint detection device.

[0014] By employing the technical solution of this utility model, an extrusion device is provided. This device acts on the joint position of the rubber compound and applies a preset pressure to the joint position. Thus, the joint position deforms under the action of the extrusion. Simultaneously, a detection element is provided to detect the movement distance of the extrusion element, thereby determining whether the overlap at the joint position is qualified based on the movement distance. Specifically, the movement of the extrusion element has a preset stroke under the preset pressure. Without external resistance, the movement distance of the extrusion element is the preset stroke. When external resistance exists, the movement distance of the extrusion element will be less than the preset stroke. This embodiment achieves quality detection of the joint position based on the above principle. Because the rubber compound has a certain degree of toughness, if the rubber compound joint is qualified, the joint will remain overlapping, and there will be no breakage at the joint. In this case, the extrusion section will be subjected to the reaction force of the rubber compound, making the movement distance of the extrusion section smaller than the preset stroke. Conversely, if the rubber compound joint is unqualified, the joint will break, and the rubber compound will no longer exert a reaction force on the extrusion section, thus making the movement distance of the extrusion section equal to the preset stroke. The movement distance can be obtained by detecting the position of the extrusion section using a detection device. Therefore, based on whether the movement distance reaches the preset stroke, the joint qualification can be determined. With the above setting, the joint qualification can be detected in a timely and accurate manner during the crown strip feeding process. If it is unqualified, it can be resolved in time, avoiding downtime during subsequent conveying or bonding processes, thereby improving the working efficiency of the tire forming machine. At the same time, the above device has a simple structure and is quick and convenient to use. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure of the rubber joint detection device of this utility model is shown;

[0017] Figure 2 It shows Figure 1A schematic diagram of the structure of the rubber joint detection device when the overlap is qualified after inspection;

[0018] Figure 3 It shows Figure 1 A schematic diagram of the structure of the rubber joint detection device when an unqualified overlap is detected.

[0019] The above figures include the following reference numerals:

[0020] 10. Extrusion device; 11. Extrusion section; 12. Extrusion drive; 13. Pressure roller; 14. Fixing frame; 20. Detection piece; 30. Material pressing device; 40. Rubber material; 41. Joint position. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0024] To address the problem that existing technologies cannot accurately detect whether the overlap of the crown strip joint is firm and reliable, this utility model provides a rubber joint detection device and a tire forming machine.

[0025] like Figures 1 to 3 The rubber joint detection device shown includes an extrusion device 10 and a detection element 20. The extrusion device 10 has an extrusion part 11 that is movably arranged. The extrusion part 11 can extrude the joint position 41 of the rubber 40 according to a preset pressure and deform the joint position 41. The detection element 20 can detect the position of the extrusion part 11 to determine the movement distance of the extrusion part 11.

[0026] This embodiment includes an extrusion device 10, which acts on the joint position 41 of the adhesive 40 and applies a preset pressure to the joint position 41. This causes the joint position 41 to deform under the action of the extrusion part 11. Simultaneously, a detection element 20 is provided to detect the movement distance of the extrusion part 11, thereby determining whether the overlap at the joint position 41 is acceptable based on the movement distance. Specifically, the extrusion part 11 has a preset stroke under the preset pressure. Without external resistance, the movement distance of the extrusion part 11 is the preset stroke. However, when external resistance is present, the movement distance of the extrusion part 11 will be less than the preset stroke. This embodiment achieves quality detection of the joint position 41 based on the above principle. Because the rubber compound 40 has a certain degree of toughness, if the joint of the rubber compound 40 is qualified, the joint position 41 will remain overlapping, and the joint of the rubber compound 40 will not break. At this time, the extrusion section 11 will be subjected to the reaction force of the rubber compound 40, making the movement distance of the extrusion section 11 smaller than the preset stroke. However, if the joint of the rubber compound 40 is unqualified, the joint position 41 will break, and the rubber compound 40 will no longer exert a reaction force on the extrusion section 11, thus making the movement distance of the extrusion section 11 equal to the preset stroke. The movement distance can be obtained by detecting the position of the extrusion section 11 through the detection element 20. Therefore, the joint qualification can be judged based on whether the movement distance reaches the preset stroke. With the above setting method, the joint qualification can be detected in a timely and accurate manner during the crown strip feeding process. If it is unqualified, it can be resolved in time, avoiding downtime during subsequent conveying or bonding processes, thereby improving the working efficiency of the tire forming machine. At the same time, the above device has a simple structure and is quick and convenient to use.

[0027] It should be noted that this embodiment uses rubber material 40 as an example of crown band strip. Of course, it can also be other rubber materials. That is, the rubber material joint detection device of this embodiment can be applied to the detection of various rubber material overlaps, including crown band strips. Taking crown band strip as an example, when crown band strips overlap, the tail of the previous section of rubber material and the head of the next section of rubber material are usually overlapped and connected by pressing or other methods, so that the crown band strip can be continuously fed to achieve continuous processing. The joint position 41 that the rubber material joint detection device of this embodiment needs to detect is precisely the overlapping part of the tail of the previous section of rubber material and the head of the next section of rubber material.

[0028] It should be noted that the preset pressure of the extrusion section 11 needs to be less than the force that causes the qualified joint to break open, and the preset pressure should be as close as possible to the force that causes the qualified joint to break open, so as to improve the accuracy of the test while achieving the test.

[0029] like Figure 1As shown, in this embodiment, the extrusion part 11 and the detection element 20 are located on opposite sides of the surface of the rubber material 40. Thus, when the extrusion part 11 reaches the location of the detection element 20, it needs to pass through the joint position 41 of the rubber material 40. Figure 2 As shown, if the overlap at joint position 41 is qualified, the extrusion part 11 cannot pass through joint position 41 and therefore will not trigger the detection element 20; Figure 3 As shown, if the joint position 41 is disconnected, the end of the extrusion part 11 can reach the position of the detection element 20 and be detected by the detection element 20.

[0030] In this embodiment, the detection element 20 adopts a contact detection switch. Thus, the extrusion part 11 needs to reach the detection element 20 to trigger the detection element 20. Therefore, when the joint position 41 is qualified, the extrusion part 11 cannot reach the position of the detection element 20 and cannot trigger the detection element 20; while when the joint position 41 is unqualified, the extrusion part 11 can break through the joint position 41 and contact and cooperate with the detection element 20 to trigger the detection element 20.

[0031] Of course, in addition to the detection switch mentioned above, the detection component 20 can also use other contact detection components or other non-contact detection components, such as distance sensors, as long as the movement distance of the extrusion part 11 can be obtained by detecting the position of the extrusion part 11.

[0032] Preferably, the line connecting the extrusion part 11 and the detection element 20 in this embodiment passes through the joint position 41, so that the extrusion part 11 can stably and reliably apply the extrusion force to the joint position 41, ensuring the accuracy of the detection of whether the joint position 41 is qualified.

[0033] In this embodiment, the adhesive joint detection device further includes a pressing device 30, which is located on the conveying path of the adhesive 40 and can press the adhesive 40. Since the extrusion part 11 requires the adhesive 40 to deform when it is extruded, to prevent the adhesive 40 from being untensioned and naturally bending due to other parts of the adhesive 40 reaching the joint position 41, the pressing device 30 is provided. During detection, the pressing device 30 can press the adhesive 40, ensuring that the adhesive 40 at the joint position 41 can only deform when extruded by the extrusion part 11, thus guaranteeing accurate and reliable detection. The specific structure of the pressing device 30 can be configured as needed. It can use a mechanical gripper to press the adhesive, or it can use a pair of rollers that move closer and further apart to press and release the adhesive 40 between them, etc., as long as the adhesive 40 can be pressed firmly.

[0034] Considering that there are two sections of rubber material, one before and one after, in this embodiment, there are multiple pressing devices 30. Pressing devices 30 are provided on both sides of the extrusion device 10 along the conveying direction of the rubber material 40. That is, pressing devices 30 are provided upstream and downstream of the joint position 41 along the conveying direction of the rubber material 40. This ensures that the tail of the first section of rubber material and the head of the second section of rubber material are pressed tightly by the pressing devices 30, thereby ensuring that the joint position 41 is tensioned. This ensures that when the extrusion force of the extrusion part 11 is applied to the joint position 41, the joint position 41 can only deform, thus ensuring the accuracy of the detection.

[0035] It should be noted that the setting of the pressing device 30 is not necessary. When other structures such as a tensioning mechanism are set in the conveying path of the rubber material 40 in the tire forming machine, the tensioning mechanism can replace the function of the pressing device 30 to achieve the tensioning effect on the rubber material 40, so that the rubber material 40 will not loosen and can only deform when it is squeezed by the extrusion section 11.

[0036] like Figures 1 to 3 As shown, the extrusion device 10 of this embodiment includes an extrusion drive 12 and a pressure roller 13. The extrusion drive 12 is the main component that drives the extrusion and applies extrusion force. The extrusion drive 12 has an extrusion section 11 and can drive the extrusion section 11 to extrude the rubber material 40. The pressure roller 13 is rotatably disposed at the end of the extrusion section 11. The extrusion section 11 does not directly contact the rubber material 40, but the pressure roller 13 is disposed at the end of the extrusion section 11, so that when the extrusion section 11 moves, it achieves the effect of contacting and extruding the rubber material 40 through the pressure roller 13. Due to the rotation of the pressure roller 13, the force application position of the extrusion section 11 on the rubber material 40 can be adjusted by itself, ensuring that the extrusion force of the extrusion section 11 can be stably and reliably applied to the rubber material 40, thereby ensuring the accuracy and reliability of the overlap detection. The number and specific position of the pressure rollers 13 can be adjusted as needed, and multiple pressure rollers 13 can be disposed at the end of the extrusion section 11.

[0037] In this embodiment, the extrusion drive 12 is a cylinder, with the cylinder body as the main body and the cylinder rod as the extrusion part 11. This allows the axial movement of the cylinder rod to be controlled when gas is introduced into the cylinder, thereby enabling the extrusion part 11 to approach and extrude the rubber material 40. The preset pressure of the extrusion part 11 can be adjusted by parameters such as the gas pressure and volume introduced into the cylinder, so that the preset pressure can match the force required to break open the qualified joint.

[0038] Preferably, the movement trajectory of the cylinder rod, that is, the movement trajectory of the extrusion section 11, is perpendicular to the surface of the rubber material 40 that is not subjected to extrusion pressure during normal conveying. In conjunction with the aforementioned pressure roller 13, the force of the extrusion section 11 can be applied more stably and accurately to the joint position 41.

[0039] like Figure 1 As shown, the extrusion device 10 in this embodiment also includes a fixing frame 14. The cylinder of the extrusion drive 12 is mounted on the fixing frame 14 for fixation. The fixing frame 14 can be installed and fixed on the frame or other components of the tire forming machine as needed, thereby achieving the installation and fixation of the extrusion device 10. The specific structural form of the fixing frame 14 can be set as needed, and a plate structure, frame structure, etc. can be adopted. The cylinder and the fixing frame 14 can be connected and fixed by bolts or other components.

[0040] This embodiment also provides a tire forming machine, including a frame and the above-mentioned rubber joint detection device. Components fixedly installed on the rubber joint detection device, such as the cylinder of the extrusion drive 12 and the detection component 20, can be installed and fixed on the frame. The frame has a joint area for realizing the overlap of the crown strip. The extrusion device 10 is set at the joint area, thereby realizing the detection of the overlap quality.

[0041] It should be noted that "multiple" in the above embodiments refers to at least two.

[0042] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0043] 1. This solves the problem in existing technologies that cannot accurately detect whether the overlap of the crown strip joint is firm and reliable;

[0044] 2. During the feeding process of the crown strip, timely and accurate detection of whether the joint is qualified is required. If it is not qualified, it should be resolved in time to avoid downtime during subsequent conveying or bonding, thereby improving the working efficiency of the tire forming machine.

[0045] 3. The device has a simple structure and is quick and easy to use.

[0046] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for detecting rubber joints, characterized in that, include: The extrusion device (10) has an extrusion section (11) that is movably arranged. The extrusion section (11) can extrude the joint position (41) of the rubber material (40) according to a preset pressure and deform the joint position (41). The detection element (20) can detect the position of the extrusion part (11) to determine the movement distance of the extrusion part (11).

2. The rubber joint detection device according to claim 1, characterized in that, The extrusion section (11) and the detection element (20) are located on opposite sides of the surface of the rubber material (40).

3. The rubber joint detection device according to claim 2, characterized in that, The line connecting the extrusion part (11) and the detection element (20) passes through the joint position (41).

4. The rubber joint detection device according to claim 2, characterized in that, The detection element (20) is a contact detection switch. When the joint position (41) is unqualified, the extrusion part (11) breaks through the joint position (41) and makes contact with the detection element (20).

5. The rubber joint detection device according to claim 1, characterized in that, The adhesive joint detection device further includes a pressing device (30), which is located on the conveying path of the adhesive (40) and can press the adhesive (40).

6. The rubber joint detection device according to claim 5, characterized in that, There are multiple pressing devices (30), and the pressing devices (30) are provided on both sides of the extrusion device (10) along the conveying direction of the rubber material (40).

7. The rubber joint detection device according to claim 1, characterized in that, The extrusion device (10) includes: An extrusion drive (12) having the extrusion section (11); A pressure roller (13) is rotatably disposed at the end of the extrusion section (11), and the extrusion section (11) extrudes the rubber material (40) through the pressure roller (13).

8. The rubber joint detection device according to claim 7, characterized in that, The extrusion device (10) further includes a fixing frame (14), and the extrusion drive (12) is mounted on the fixing frame (14).

9. The rubber joint detection device according to claim 7, characterized in that, The extrusion drive (12) is a cylinder, the extrusion part (11) is the cylinder rod of the cylinder, and the movement trajectory line of the cylinder rod is perpendicular to the surface of the rubber material (40).

10. A tire forming machine, characterized in that, The device includes the rubber joint detection device according to any one of claims 1 to 9.

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