Tire side integrated preformed die
By designing the integrated pre-mouth type on the sidewall, the problem of dimensional instability in tire sidewall production is solved, the stability and internal accuracy of the sidewall dimensions are achieved, and the occurrence of wire leakage in the tire is avoided.
Patent Information
- Application Number
- CN202421911443.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-07
AI Technical Summary
In the prior art, during the tire sidewall production process, there is a gap between the mating surface between the pre-mouth and the mouth-shaped tooling, resulting in unstable dimensions, resulting in uneven thickness of the tire lining layer, which in turn causes the problem of wire leakage in the tire.
A sidewall integrated pre-mouth type is designed, including a frame body, equipped with an oral mounting groove and a flowing rubber channel. The flowing rubber channel connects the outgoing rubber surface and the inlet rubber surface, and stabilizes the flow of rubber through a gradually shrinking design to avoid oral displacement and ensure the accuracy of the composite surface.
Through the integrated pre-mouth design, the sidewall size is stabilized, the thickness is not uniform, the wire is leaked in the tire, and the internal dimensional accuracy of the tire is improved.
Smart Images
Figure CN223147703U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tire processing, and particularly relates to a one-piece pre-profile for tire sidewalls. Background Art
[0002] At present, the production of tire sidewalls uses forced distribution for sidewall extrusion molding. The rubber compound is forced to separate in the pre-profile and then compounded and formed through the profile plate. In the prior art, the pre-profile is usually separated from the profile frame. During installation, the offset of the component rubber compound interface often occurs due to the gap between the mating surfaces of the pre-profile and the profile tooling, resulting in unstable dimensions during the sidewall production process, thus causing unstable thickness of the tire inner liner layer and wire leakage inside the tire. Summary of the Utility Model
[0003] Based on the above description, the utility model provides a one-piece pre-profile for tire sidewalls. By setting a one-piece pre-profile, the displacement during the profile replacement can be avoided, thereby stabilizing the sidewall dimensions and avoiding wire leakage inside the tire caused by uneven thickness of the sidewall dimensions.
[0004] The technical solution for the utility model to solve the above technical problems is as follows: A one-piece pre-profile for tire sidewalls includes a frame body. One side of the frame body is provided with a profile installation groove, the bottom of the profile installation groove is a rubber outlet surface, and the opposite side of the frame body is a rubber inlet surface; at least two rubber flow channels are provided on the frame body, and the rubber flow channels communicate with the rubber outlet surface and the rubber inlet surface respectively.
[0005] On the basis of the above technical solution, the utility model can be further improved as follows.
[0006] Further, the cross-sectional area of the rubber flow channel gradually decreases from the rubber inlet surface to the rubber outlet surface, and the spacing of the rubber flow channels gradually decreases from the rubber inlet surface to the rubber outlet surface.
[0007] Further, the rubber flow channels include a sidewall soft rubber channel, a bead wear-resistant rubber channel, and a sidewall hard rubber channel; the sidewall soft rubber channel, the bead wear-resistant rubber channel, and the sidewall hard rubber channel are arranged from top to bottom in sequence, and the sidewall hard rubber channel is located between the sidewall soft rubber channel and the bead wear-resistant rubber channel in the left-right direction.
[0008] Further, the rubber flow channels include two symmetrically arranged sidewall soft rubber channels, two symmetrically arranged bead wear-resistant rubber channels, and two symmetrically arranged sidewall hard rubber channels.
[0009] Further, the ends of the sidewall soft rubber channel, the bead wear-resistant rubber channel, and the sidewall hard rubber channel close to the rubber outlet surface are interconnected.
[0010] Further, an upper extrusion surface is provided at the top of one end of the sidewall soft rubber channel close to the rubber outlet surface, and the included angle between the upper extrusion surface and the rubber outlet surface is smaller than the included angle between the top of one end of the sidewall soft rubber channel close to the rubber inlet surface and the rubber outlet surface.
[0011] Further, a lower extrusion surface is provided at the bottom of one end of the sidewall hard rubber channel close to the rubber outlet surface, and the included angle between the upper extrusion surface and the rubber outlet surface is smaller than the included angle between the bottom of one end of the sidewall hard rubber channel close to the rubber inlet surface and the rubber outlet surface.
[0012] Further, heating rod channels, temperature sensor mounting holes and fixing bolt holes are provided on the left and right side surfaces of the frame body.
[0013] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:
[0014] 1. By providing an integrated pre-orifice in the present utility model, displacement during orifice replacement can be avoided, thereby stabilizing the sidewall dimensions and preventing wire leakage inside the tire caused by uneven thickness of the sidewall dimensions.
[0015] 2. By connecting the sidewall soft rubber channel, the bead wear-resistant rubber channel, and the sidewall hard rubber channel on the outlet side, a composite surface is pre-formed at the connection of the sidewall soft rubber, the bead wear-resistant rubber, and the sidewall hard rubber, avoiding deformation of the composite part caused by a small composite angle inside the orifice plate, thereby ensuring the internal dimensional accuracy of the sidewall. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 FIG. 1 is a schematic structural diagram of an integrated sidewall pre-orifice provided in Embodiment 1 of the present utility model;
[0017] Figure 2 FIG. 2 is a schematic structural diagram of the rubber outlet surface of the frame body in Embodiment 1 of the present utility model;
[0018] Figure 3 FIG. 3 is a schematic structural diagram of the rubber inlet surface of the frame body in Embodiment 1 of the present utility model;
[0019] Figure 4 FIG. 4 is a schematic structural diagram of the side surface of the frame body in Embodiment 1 of the present utility model;
[0020] Figure 5 FIG. 5 is a schematic structural diagram of an integrated sidewall pre-orifice provided in Embodiment 2 of the present utility model;
[0021] Figure 6 FIG. 6 is a schematic structural diagram of the rubber outlet surface of the frame body in Embodiment 2 of the present utility model;
[0022] In the drawings, the list of components represented by each reference numeral is as follows:
[0023] 1. Frame body; 11. Orifice mounting groove; 12. Glue inlet surface; 13. Glue outlet surface; 14. Heating rod channel; 15. Temperature sensor mounting hole; 16. Fixed bolt hole; 2. Sidewall soft rubber channel; 21. Upper extrusion surface; 3. Bead wear-resistant rubber channel; 4. Sidewall hard rubber channel; 41. Lower extrusion surface. Detailed implementation mode
[0024] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant attached drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0026] It can be understood that spatial relationship terms such as "under", "below", "lower", "beneath", "above", "upper", etc. can be used herein to describe the relationship between an element or feature shown in the figure and other elements or features. It should be understood that in addition to the orientation shown in the figure, spatial relationship terms also include different orientations of the device during use and operation. For example, if the device in the drawing is flipped, the element or feature described as "under other elements" or "beneath it" or "under it" will be oriented "above" other elements or features. Therefore, the exemplary terms "under" and "beneath" can include both the upper and lower orientations. In addition, the device can also include other orientations (such as rotating 90 degrees or other orientations), and the spatial description terms used herein are accordingly interpreted.
[0027] Embodiment 1
[0028] A sidewall integrated pre-orifice includes a frame body 1. One side of the frame body 1 is provided with an orifice mounting groove 11. The bottom of the orifice mounting groove 11 is the glue outlet surface 13, and the opposite side of the frame body 1 is the glue inlet surface 12. At least two glue flow channels are provided on the frame body 1, and the glue flow channels are respectively communicated with the glue outlet surface 13 and the glue inlet surface 12.
[0029] In this embodiment, the glue flow channels include two symmetrically arranged sidewall soft rubber channels 2, two symmetrically arranged bead wear-resistant rubber channels 3, and two symmetrically arranged sidewall hard rubber channels 4. The sidewall soft rubber channels 2, the bead wear-resistant rubber channels 3, and the sidewall hard rubber channels 4 are arranged in sequence from top to bottom, and the sidewall hard rubber channels 4 are located between the sidewall soft rubber channels 2 on the same side and the bead wear-resistant rubber channels 3 on the same side in the left-right direction.
[0030] As Figure 1 shown, the cross-sectional areas of the sidewall soft rubber channel 2, the bead wear-resistant rubber channel 3, and the sidewall hard rubber channel 4 gradually decrease from the rubber inlet surface 12 to the rubber outlet surface 13. Moreover, the height of the sidewall soft rubber channel 2 gradually decreases from the rubber inlet surface 12 to the rubber outlet surface 13, and the height of the sidewall hard rubber channel 4 gradually increases from the rubber inlet surface 12 to the rubber outlet surface 13, so that the spacing of the rubber flow channels gradually decreases from the rubber inlet surface 12 to the rubber outlet surface 13.
[0031] As Figure 4 shown, heating rod channels 14, temperature sensor mounting holes 15, and fixing bolt holes 16 are provided on the left and right side surfaces of the frame body 1.
[0032] In this embodiment, by setting an integrated pre-profile, the displacement during the profile change can be avoided, thereby stabilizing the sidewall dimensions and avoiding wire leakage inside the tire caused by uneven sidewall thickness.
[0033] Embodiment 2
[0034] The difference between this embodiment and Embodiment 1 is that an upper extrusion surface 21 is provided at the top of the end of the sidewall soft rubber channel 2 close to the rubber outlet surface 13, and the angle between the upper extrusion surface 21 and the rubber outlet surface 13 is smaller than the angle between the top of the end of the sidewall soft rubber channel 2 close to the rubber inlet surface 12 and the rubber outlet surface 13.
[0035] In this embodiment, by connecting the sidewall soft rubber channel 2, the bead wear-resistant rubber channel 3, and the sidewall hard rubber channel 4 on the outlet side, a composite surface is pre-formed at the connection of the sidewall soft rubber, the bead wear-resistant rubber, and the sidewall hard rubber, avoiding the deformation of the composite part caused by a small composite angle in the profile plate, thereby ensuring the internal dimension accuracy of the sidewall.
[0036] In addition, an upper extrusion surface 21 is provided at the top of the end of the sidewall soft rubber channel 2 close to the rubber outlet surface 13, and the angle between the upper extrusion surface 21 and the rubber outlet surface 13 is smaller than the angle between the top of the end of the sidewall soft rubber channel 2 close to the rubber inlet surface 12 and the rubber outlet surface 13.
[0037] A lower extrusion surface 41 is provided at the bottom of the end of the sidewall hard rubber channel 4 close to the rubber outlet surface 13, and the angle between the upper extrusion surface 21 and the rubber outlet surface 13 is smaller than the angle between the bottom of the end of the sidewall hard rubber channel 4 close to the rubber inlet surface 12 and the rubber outlet surface 13.
[0038] In this embodiment, by providing the upper extrusion surface 21 and the lower extrusion surface 41 to extrude the sidewall soft rubber and the sidewall hard rubber respectively, the pre-formation of the composite surface at the connection of the sidewall soft rubber, the bead wear-resistant rubber, and the sidewall hard rubber is further strengthened.
[0039] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An integrated bead pre-profile, characterized in that It includes a frame body, on one side of the frame body, there is a mouth-shaped mounting groove, the bottom of the mouth-shaped mounting groove is the glue outlet surface, and the opposite side of the frame body is the glue inlet surface; at least two glue flow channels are arranged on the frame body, and the glue flow channels are respectively communicated with the glue outlet surface and the glue inlet surface; The glue flow channels include a sidewall soft rubber channel, a bead wear-resistant rubber channel, and a sidewall hard rubber channel; the sidewall soft rubber channel, the bead wear-resistant rubber channel, and the sidewall hard rubber channel are arranged in sequence from top to bottom, and the sidewall hard rubber channel is located between the sidewall soft rubber channel and the bead wear-resistant rubber channel in the left-right direction; One ends of the sidewall soft rubber channel, the bead wear-resistant rubber channel, and the sidewall hard rubber channel close to the glue outlet surface are communicated with each other.
2. The one-piece pre-profile for the tire side according to claim 1, characterized in that, The cross-sectional area of the glue flow channel gradually decreases from the glue inlet surface to the glue outlet surface, and the spacing of the glue flow channels gradually decreases from the glue inlet surface to the glue outlet surface.
3. The one-piece pre-profile for the tire side according to claim 1, characterized in that, The glue flow channels include two symmetrically arranged sidewall soft rubber channels, two symmetrically arranged bead wear-resistant rubber channels, and two symmetrically arranged sidewall hard rubber channels.
4. A one-piece pre-profile for the sidewall according to claim 1, characterized in that, At the top of one end of the sidewall soft rubber channel close to the glue outlet surface, there is an upper extrusion surface, and the angle between the upper extrusion surface and the glue outlet surface is smaller than the angle between the top of one end of the sidewall soft rubber channel close to the glue inlet surface and the glue outlet surface.
5. The one-piece pre-profile for the tire side according to claim 4, characterized in that, At the bottom of one end of the sidewall hard rubber channel close to the glue outlet surface, there is a lower extrusion surface, and the angle between the upper extrusion surface and the glue outlet surface is smaller than the angle between the bottom of one end of the sidewall hard rubber channel close to the glue inlet surface and the glue outlet surface.
6. A sidewall integrated pre-profile according to claim 1, characterized in that, Heating rod channels, temperature sensor mounting holes, and fixing bolt holes are arranged on the left and right side surfaces of the frame body.