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Inner cavity extension periodic wave type non-pneumatic tire and processing method thereof

A technology of non-pneumatic tires and processing methods, which is applied to non-pneumatic tires, tire parts, tires, etc., and can solve problems such as puncture safety accidents and maintenance difficulties

Inactive Publication Date: 2021-04-30
马鞍山华之智信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that traditional tires are easy to be punctured and have safety accidents and maintenance difficulties, the present invention proposes an inner cavity extension periodic wave type air-free tire and its processing method. The mixed rubber material is extruded by a screw Extrude the tire green strips that form the belly grooves on the belly of the tire, and then wrap the tire green strips on the mold core components with the help of workpieces, so that the mold core components are embedded in the belly grooves at equal intervals to form several groups of inner cavity grooves. Grooves, the inner cavity grooves are connected to form an extended periodic wavy inner cavity, so as to ensure that the tire has both the comfort of the traditional ring cavity structure and the support strength of the traditional cavity structure

Method used

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  • Inner cavity extension periodic wave type non-pneumatic tire and processing method thereof
  • Inner cavity extension periodic wave type non-pneumatic tire and processing method thereof
  • Inner cavity extension periodic wave type non-pneumatic tire and processing method thereof

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Effect test

Embodiment 1

[0039] A kind of cavity extension periodical wave type non-pneumatic tire of the present embodiment, such as figure 2 As shown, it includes a tire billet 1 extruded by a screw extruder, and the tire billet 1 includes a crown 11 and a belly 12, as Figure 4~5The belly 12 is provided with belly grooves 121 along its circumference, and several groups of inner cavity grooves 14 are arranged at equal intervals along the circumference of the tire belly grooves 121. The inner cavity grooves 14 start and end connected to form an extended periodic wave-like cavity 141, such as Figure 6~7 As shown, in the riding process, the wave-like convex portion 142 is round and ellipsoidal (ellipsoidal and flat); the spaced concave portion 143 is recessed from the convex portion 142 inwardly, and becomes thicker and thinner again, so that this The invented tire not only has the comfort of the traditional ring cavity structure, but also has the support strength of the traditional cavity structure...

Embodiment 2

[0041] A kind of cavity extension periodical wave type non-pneumatic tire of this embodiment, the basic structure is the same as embodiment 1, difference and improvement are: as figure 1 , 3 , 6, the crown 11 is provided with a crown groove 111 along its circumference, and the crown groove 111 is filled with material A112, and the material A112 is a high wear-resistant, anti-wet skid tread Rubber material to solve the problem of safety hazards caused by tire jumping or even fracture caused by uneven tire joints in the molding process, and can be eliminated or pre-warned.

[0042] Such as Figure 4 , 6 As shown, it also includes a sidewall part 13, the middle part of the sidewall part 13 is provided with a sidewall part groove 131 along its circumferential direction, and the material B132 is filled in the sidewall part groove 131, and the material B132 is Foaming and other related lightweight cushioning materials, use lightweight cushioning materials for the sidewall 13 that...

Embodiment 3

[0044] A kind of processing method of inner cavity extension periodical wave type non-pneumatic tire of this embodiment, basic structure is the same as embodiment 2, difference and improvement are: as Figure 4-8 shown, including the following steps:

[0045] Step 1. Extruding the tire embryo strip 1: using a screw extruder to extrude the kneaded rubber material into the tire embryo strip 1 provided with a tire belly groove 121 along its circumferential direction on the tire belly 12;

[0046] Step 2. Preforming preparation: cut the extruded tire green strip 1 into segments according to the size, and then wrap it on the mold core member 5 with the help of tooling, so that the mold core member 5 is equidistant along the tire belly 12 Embedded in the belly groove 121, the belly groove 121 can ensure the accurate alignment and insertion of the mold core member 5, and can also play the role of limiting and clamping, so as to ensure the smooth progress of the subsequent molding pro...

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Abstract

The invention discloses an inner cavity extension periodic wave type non-pneumatic tire and a processing method thereof, and belongs to the technical field of non-pneumatic tires. According to the inner cavity extension periodic wave type non-pneumatic tire and the processing method thereof, a mixed rubber material is extruded out of a tire blank strip with a tire belly groove formed in the tire belly through a screw extruder, and then a mold core component is coated with the tire blank strip by means of a workpiece, so that an inner cavity groove is formed and connected to form an inner cavity of the extension periodic wave type non-pneumatic tire; therefore, the tire not only has the comfort of a traditional ring cavity structure, but also has the supporting strength of a traditional bag cavity structure. The sidewall part using the light buffer material B is compounded with the crown using the high-wear-resistance and wet-skid-resistance material A, so that the weight of the tire body is reduced as much as possible, the cost is saved, enough supporting strength of the tire body can be guaranteed, and the service life of the tire is prolonged.

Description

technical field [0001] The invention relates to the technical field of air-free tires, in particular to an air-free tire with an inner cavity extension periodic wave and a processing method thereof. Background technique [0002] Pneumatic-free tires have been widely concerned and popularized due to their advantages of convenient maintenance without inflation, long service life, no fear of puncture, and wear resistance. Pneumatic-free tires include non-inflatable solid tires and non-inflatable hollow tires. The production of tires is very mature, but the non-inflatable hollow tires are difficult to complete by traditional molding process. At the same time, the comfort problem of non-pneumatic tires during riding has not been fundamentally resolved and the production process is relatively complicated. [0003] After searching, in order to solve the above problems, such as the Chinese patent, the publication number is: CN109109352A, and the publication date is: January 1, 2019...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C7/00B60C7/10B29D30/02
CPCB29D30/02B60C7/00B60C7/10B60C7/105
Inventor 郁萍
Owner 马鞍山华之智信息科技有限公司
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