Run-flat tire forming method
A run-flat and forming method technology, which is applied in the field of rubber tires, can solve the problems that the forming drum cannot meet the production of run-flat tires, and achieve the effects of increasing the width, preventing the generation of air bubbles at the tire rim, and reducing the air bubbles in the tire
Pending Publication Date: 2020-09-18
万达集团股份有限公司 +1
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Problems solved by technology
[0003] The purpose of the present invention is to provide a run-flat forming method to solve the problem that the existing building drum cannot meet the requirements of run-flat tire production
Method used
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Embodiment 1
[0035] This embodiment relates to a lack of air forming method, which is used for forming a tire tube of a secondary forming machine, and specifically includes the following process steps:
[0036] Step 1. The lining layer feeding rack is located at the waiting position of the forming drum; the 1 and 2# carcasses are located at the waiting position at the cutting place; at this time, the inner lining layer is on the feeding rack at the front end of the forming drum, and the 1 and 2# carcasses are in the waiting position after cutting. on their respective supply racks;
[0037] Step 2. Positioning of the inner lining layer, the action set by the program is: drum combination, lowering of the upper feeding frame, lowering of the thousand-layer roller, upper of the lower sponge roller, positioning of the inner lining layer, and feeding of capsules; at this time, the inner lining layer follows the process The required positioning angle is used for positioning, and the front end of ...
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Abstract
The invention relates to the technical field of rubber tires, in particular to a run-flat tire forming method, and more in particular to a secondary process forming machine for a common tire. By changing the design of a mouth shape of supporting rubber and increasing the width of the mouth shape of the supporting rubber, it is transitional slowly from a beginning point in a tire side direction tothe thickest point. Meanwhile, an existing upper sponge compression roller is converted into an air pressure piston multi-layer roll capable of adjusting the pressure in areas. By adjusting the pressures of compression rollers in different parts, a cord fabric in a tire cavity can be compacted, and it can be further ensured that joints of the cord fabric of a tire body are consistent in size on different drum heads; by means of a method of decreasing the width of the tire side and increasing a wear-resistant rubber sheet below the cord fabric of the first tire body, air bubbles at a tire beadof the tire are prevented.
Description
technical field [0001] The invention relates to the technical field of rubber tires, in particular to a run-flat molding method, which is especially suitable for ordinary tire secondary molding machines. Background technique [0002] With the continuous development of economy and society, people's demand for safety is increasing day by day. In the tire industry, run-flat tires emerged as the times require. However, in the tire manufacturing industry, ordinary tire secondary method building drums cannot meet the production process requirements of run-flat tires, and secondary method forming drums need to be purchased separately. The price of only one forming drum is as high as hundreds of thousands, and the width of the machine head is adjustable The range can only reach 50mm, and one machine head can only produce several similar specifications. It needs to adjust 60 formed drum plates, and it takes more than one hour to replace the tooling. Therefore, in order to improve m...
Claims
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IPC IPC(8): B29D30/24B29D30/26B29D30/28B29D30/30B29D30/32
CPCB29D30/244B29D30/2607B29D30/28B29D30/30B29D30/32B29D2030/2628B29D2030/2671
Inventor 刘吉镇尚吉永陈绍孟陈国胜杨小刚王晓敏唐俊萍尚永峰
Owner 万达集团股份有限公司