US 2021/0268759 A1 · TURN-UP DEVICE AND TIRE BUILDING METHOD USING TURN-UP DEVICE

Abstract

A turn-up device, comprising a building machine main shaft, an outer sleeve device, a ply down finger assy, a bladder device, a bead setting device, and a bead locking device. The outer sleeve device, the ply down finger assy and the bladder device are all sleeved on the building machine main shaft. The outer sleeve device is located on the outer sides of the ply down finger assy and the bladder device along the radial direction of the building machine main shaft. The bead setting device is located on the outer sleeve device. A tire building method using the turn-up device can improve the building quality of tire beads, improve the service life of capsule and provide promising precision of carcass.

Claims14

Dependent claims

A turn-up device, comprising a building machine main shaft, an outer sleeve device, a ply down finger assy, a bladder device, a bead setting device, and a bead locking device, wherein:

the outer sleeve device, the ply down finger assy and the bladder device are all sleeved on the building machine main shaft, and the outer sleeve device is located on the outer sides of the ply down finger assy and the bladder device along the radial direction of the building machine main shaft;
and the bead setting device is located on the outer sleeve device.

A tire building method comprises the following steps:

step 1-1:
sleeving a carcass assembly on a carcass drum;
step 1-2:
respectively performing turn-down on two sides of the carcass assembly by using a first tum-up device and a second turn-up device;
step 1-3:
respectively performing bead setting on the two sides of the carcass assembly by using the first tum-up device and the second tum-up device;
step 1-4:
respectively performing bead locking on the two sides of the carcass assembly by using the first tum-up device and the second tum-up device;
step 1-5:
respectively performing turn-up on the two sides of the carcass assembly by using the first turn-up device and the second turn-up device;
and
step 1-6:
completing all turn-up processes of the carcass assembly to obtain a first carcass assembly.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/303,390Filed 19 May 2017

Priority

CN CN 201610344947.323 May 2016

Published

2 Sep 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification3 codes

B29D 30/32
By the flat-tyre method, i.e. building on cylindrical drums: fitting the bead-rings or bead-cores; Folding the textile layers around the rings or…
B29D 2030/3214
Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores: locking the beads on the drum; details of the drum in…
B29D
Producing particular articles from plastics or from substances in a plastic state

Turn-up device and tire building method using turn-up device

Life of this patent

Turn-up device and tire building method using turn-up device

Life of this patent

Abstract

Claims14