Tire building machine belt layer drum and radial expansion and contraction method thereof

A tire building machine and belt drum technology, applied in the field of rubber machinery, can solve problems such as complex internal structure of the drum, reduced air path sealing performance, hidden dangers of tire safety, etc., to achieve convenient installation, commissioning and maintenance, simple adjustment means, and guarantee consistent effect

Inactive Publication Date: 2013-05-08
MESNAC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of a pneumatic drive device, it is difficult to accurately control the process distance generated by the compressed air, that is, it is difficult to accurately control the radial movement distance of the support 2, usually after a long period of use due to the decline in the sealing performance of the air circuit, such problems are more serious to be significant
[0007] Moreover, the pressure difference of the local compressed air will also directly cause the radial drop between several supports 2, which will affect the surface smoothness of the so-called r

Method used

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  • Tire building machine belt layer drum and radial expansion and contraction method thereof
  • Tire building machine belt layer drum and radial expansion and contraction method thereof
  • Tire building machine belt layer drum and radial expansion and contraction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1, such as figure 1 and figure 2 As shown, the belt drum of the tire building machine mainly includes:

[0040] a spindle 10;

[0041] Two sets of drum tiles 7 that can expand and contract radially and a tapered sleeve 6 that rotates axially synchronously with the drum tiles 7 are set radially along the main shaft 10;

[0042] A second push rod 1 driven by a servo motor (not shown) is arranged axially along the main shaft 10, and several rolling bearings 3 are installed on the inner side of the second push rod 1 through the connecting seat 2;

[0043] One end of the first push rod 5 is laterally fixed to the tapered sleeve 6 , and the other end is connected to a switch plate 4 which is sleeved on several rolling bearings 3 at the same time. That is to say, the transfer disc 4 drives the synchronous rotation between the first push rod 5 and the tapered sleeve 6 while rotating axially around several rolling bearings 3;

[0044] A support frame 11 is sheathed ...

Embodiment 2

[0050] Example 2, such as image 3 As shown, the belt drum of the tire building machine mainly includes:

[0051] a spindle 10;

[0052] Two sets of drum tiles 7 that can expand and contract radially and a tapered sleeve 6 that rotates axially synchronously with the drum tiles 7 are set radially along the main shaft 10;

[0053] A servo motor (not shown) is arranged axially along the main shaft 10 to drive and connect the first push rod 5 through the switch plate 4, and the other end of the first push rod 5 is connected to an annular connecting seat 2 and a set of rolling bearings 3. The outer end of the tapered sleeve 6 is correspondingly suspended and fitted on the rolling bearing 3;

[0054] Then the outer end of the tapered sleeve 6 can rotate axially around the rolling bearing 3, while the first push rod 5, the switching disc 4, and the connecting seat 2 do not rotate axially, and only transmit the axial driving force of the servo motor To the tapered sleeve 6, the tap...

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Abstract

The invention relates to a tire building machine belt layer drum and a radial expansion and contraction method thereof. A servo motor is adopted as an axial driving device; with motion mode conversion, drum tile radial expansion and contraction changes are caused with a mechanical transmission mode, such that the radial expansion and contraction distance of each drum tile can be precisely controlled. Therefore, belt layer drum diameter range adjustment precision can be improved. The belt layer drum radial expansion and contraction method comprises the steps that: at least a set of drum tiles which can be radially expanded and contracted, and a conical sleeve which can be subjected to synchronous axial rotation with the drum tiles are radially sleeved on a main shaft of the belt layer drum. A thrust device driven by the servo motor is axially arranged along the main shaft. The thrust device comprises a first push rod laterally connected with the conical sleeve. The first push rod rotates synchronically under the driving of the conical sleeve, such that the first push rod can push and pull the conical sleeve along an axial direction, and drum tile radial expansion and contraction can be realized.

Description

technical field [0001] The invention relates to a belt layer drum of a molding machine for preparing rubber tires and a radial expansion and contraction method thereof, belonging to the field of rubber machinery. Background technique [0002] Based on the existing rubber tire preparation process, the forming machine for tire blank processing usually needs to be separately equipped with a belt drum for preparing the belt layer-tread assembly, so that the belt layer and / or tread rubber and other components are made Formed into a monolithic structure in the shape of a ring, it is then transported by the belt transfer ring to the forming drum for further processing. [0003] In the process of preparing the belt-tread assembly, the composite parts are sequentially superimposed on the surface of the drum shoes of the belt layer drum, and the composite parts are bonded by the expansion and contraction of the drum shoes in the radial direction. [0004] For example, the prior paten...

Claims

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Application Information

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IPC IPC(8): B29D30/24
Inventor 胡勐刘明李彦海谭丽丽齐思晨王祥竹
Owner MESNAC
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