CN111590940A

CN111590940A - All-steel three-drum rotary-drawing reverse-wrapping capsule structure

Info

Publication number: CN111590940A
Application number: CN202010371982.0A
Authority: CN
Inventors: 刘明敏; 张敏; 杨大伟; 谢小红; 刘旋; 丛振兴; 吴泓利; 李红阳; 张允飞
Original assignee: Sailun Shenyang Tyre Co ltd
Current assignee: Sailun Shenyang Tyre Co ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-08-28

Abstract

An all-steel three-drum rotary-drawing turn-up bladder structure belongs to the technical field of tire production. The adhesive film VII 41 attached to the outer coating material attaching part has the shortest distance W1 of 40mm from the inner side surface of the tooth mouth of the turn-up capsule; the shortest distance W2 between the film VIII 42 attached to the outer layer of the film VII 41 and the inner side surface of the mouth of the turn-up capsule is 30 mm; the shortest distance W3 between the film IX 43 attached to the outer layer of the film VIII 43 and the inner side face of the tooth mouth of the turn-up capsule is 20 mm. According to the invention, the aims of shortening the overall size of the capsule and inward moving the high point are achieved by adjusting the position and size of the adhesive sheet, the adjustment of the inflation height of the capsule is realized, the high point is close to the ring part after the capsule is inflated, and the inflated tyre body is adhered to the rubber core.

Description

All-steel three-drum rotary-drawing reverse-wrapping capsule structure

Technical Field

The invention belongs to the technical field of tire production, and particularly relates to an all-steel three-drum rotary-drawing turn-up bladder structure which is applied to a tire blank forming process.

Background

Tires are indispensable components for vehicles such as cars and trucks, and the performance of these vehicles is closely related to the characteristics of the tires. The tire blank forming is a key process in the tire production process, and the forming drum is an indispensable important tool in the tire blank forming process.

The molding process of the tire blank of the traditional three-drum molding machine at present comprises the following steps: 1. when the width position of the forming drum is leveled, the tire cylinder is transferred to the forming drum; 2. the locking block supports the capsule for pre-inflation; 3. transferring the tire crown to a molding drum position, and shrinking the tire cylinder inflation molding drum to an over-molding position to complete tire cylinder tire crown compounding 4 and rubber core pressing, and completing micro inflation of the capsule; 5. pressing the tire crown; 6. the turn-up capsule and the boosting capsule are inflated to complete the turn-up of the tire side; 7. turning up the capsule to help push the capsule to exhaust; 8. pressing the tire side; 9. and (6) tire unloading. The capsule plays crucial effect in whole in-process, and the inflation shape, life, design size etc. of capsule are directly influencing child embryo quality, and the turn-up capsule all designs the preparation according to traditional shaping structure at present, has inefficiency, the ring portion material is inhomogeneous, life low scheduling problem, along with the novel spin-draw turn-up capsule technical development of three drums and uses, and the corresponding three drums spin-draw turn-up capsule design meaning of using with it is significant. Aims at raising efficiency, raising quality, lowering cost and prolonging service life.

Disclosure of Invention

Aiming at the technical problems, the invention provides an all-steel three-drum rotary-drawing turn-up bladder structure, which aims to prolong the service life of a bladder, ensure the uniform distribution of materials of a tire ring part, improve the air charging and exhausting efficiency and improve the forming efficiency.

The purpose of the invention is realized by the following technical scheme:

the invention relates to an all-steel three-drum rotary-drawing turn-up capsule structure which comprises a turn-up drum part, a neck drum part, a tooth mouth part and an outer packaging material attaching part, wherein one side between the turn-up drum part and the neck drum part is the tooth mouth part, the other side between the outer end of the turn-up drum part and the outer end of the neck drum part is the outer packaging material attaching part, the tooth mouth part is in a structure matched with a mounting end of a forming drum, and the shortest distance W1 between a film VII 41 attached to the outer packaging material attaching part and the inner side surface of the tooth mouth of the turn-up capsule is 40 +/-10 mm; the shortest distance W2 between the film VIII 42 attached to the outer layer of the film VII 41 and the inner side surface of the mouth of the turnup capsule is 30 +/-10 mm; the shortest distance W3 between the film IX 43 attached to the outer layer of the film VIII 43 and the inner side face of the tooth mouth of the turn-up capsule is 20 +/-10 mm.

Preferably, the length L1 of the film VII 41 along the length direction of the turn-up drum is 160 +/-10 mm.

Preferably, the length L2 of the film VIII 42 along the length direction of the reverse packaging barrel is 160 +/-10 mm.

Preferably, the length L3 of the film VIII 43 along the length direction of the reverse packaging barrel is 160 +/-10 mm.

Preferably, the closest distance m between the end part of the reverse wrapping cylinder and the tooth mouth is 240 +/-20 mm.

Preferably, the whole length L of the turn-draw turn-up capsule is 500mm +/-30 mm.

The invention has the beneficial effects that:

1. the invention is an improvement on the structure of the existing forming capsule, and achieves the purposes of shortening the whole size of the capsule and inward moving the high point by adjusting the position and the size of the rubber sheet, thereby realizing the adjustment and the increase of the inflation height of the capsule, leading the high point to be close to the ring part after the capsule is inflated, and leading the inflated tyre body to be attached to the rubber core.

2. The invention has no problem of tire side hitting when the reverse bag is rotated, improves the production efficiency, makes the material of the ring part more uniform and improves the product quality.

3. The capsule of the invention has reduced overall size and reduced air volume when inflated to the same height.

4. The invention can improve the use of the capsule to 10000 times and prolong the service life of the capsule.

Drawings

FIG. 1 is a schematic view of the structure of the capsule of the present invention;

FIG. 2 is a partial schematic cross-sectional view of a finished capsule of the present invention;

figure 3 is a schematic view of the final capsule of the present invention inflated.

In the figure: 1. the reverse wrapping barrel part comprises 11 rubber sheets I, 12 rubber sheets II, 13 cord fabric I, 14 vulcanized rubber sheets I, 15 cord fabric II, 16 rubber sheets III, 17 vulcanized rubber sheets II, 18 rubber sheets IV;

2. a neck part, 21 rubber sheets V, 22 cord fabrics III, 23 cord fabrics IV and 24 rubber sheets VI;

3. 31 parts of tooth mouths, 31 parts of vulcanized rubber sheets, 32 parts of cord fabric V, 33 parts of filling rubber strips and 34 parts of molding rubber;

4. the outer covering material is adhered to the part 41, film VII, 42, film VIII, 43, film IX, 44, film X, 45, high-elastic cloth I, 46, high-elastic cloth II, 47, nylon net, 48, high-elastic cloth III, 49 and silica gel;

5. existing capsule, 6. turn-draw turn-up capsule.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

Example (b): as shown in figure 1, the all-steel three-drum rotary-drawing turn-up capsule structure comprises a turn-up drum part, a neck drum part, a tooth mouth part and an outer packing material attaching part, wherein one side between the turn-up drum part and the neck drum part is the tooth mouth part, the other side between the outer end of the turn-up drum part and the outer end of the neck drum part is the outer packing material attaching part, the tooth mouth part is in a structure matched with a forming drum in an installation mode, and the extending end of the tooth mouth is matched with a groove of the corresponding part of the forming drum in a sealing ring mode, so that air pressure of the capsule in an inflated state when the capsule is used is guaranteed. The shortest distance W1 between the film VII 41 attached to the attaching part of the outer coating material and the inner side surface of the mouth of the turn-up capsule is 40 mm; the shortest distance W2 between the film VIII 42 attached to the outer layer of the film VII 41 and the inner side surface of the mouth of the turn-up capsule is 30 mm; the shortest distance W3 between the film IX 43 attached to the outer layer of the film VIII 43 and the inner side face of the tooth mouth of the turn-up capsule is 20 mm.

The lengths L1, L2 and L3 of the films VII 41, VIII 42 and VIII 43 along the length direction of the reverse wrapping tube are all 160 +/-2 mm.

The nearest distance m between the end part of the reverse wrapping cylinder and the tooth mouth is 240 +/-20 mm. The whole length L of the turn-draw turn-up capsule is 500mm +/-30 mm.

The order of bonding the materials of the various parts of this example is the same as the conventional order of bonding, specifically, the turn-up tube part 1, the neck tube part 2, the tooth mouth part 3, and the outer cover material bonding part 4, and the order of bonding the materials of the various parts is in accordance with the order of the figures of the various parts.

As shown in figure 3, the inflated highest point H0 of the bladder 6 of the spin-draw turn-up bladder of the embodiment makes the inflated highest point of the bladder approach to the direction of the ring part (namely, the 2 end of the neck cylinder part) by about 160mm, and the inflated carcass is attached to the rubber core, thereby being beneficial to the characteristic of quick and efficient inflation of the invention, achieving the expected bladder height and ensuring the materials of the side part and the ring part of the tire to be uniform.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.

Claims

1. The utility model provides an all steel three drums spin-draw turn-up capsule structure which characterized in that: the anti-extrusion die comprises an anti-extrusion barrel part, a neck barrel part, a tooth mouth part and an outer packaging material attaching part, wherein the tooth mouth part is arranged on one side between the anti-extrusion barrel part and the neck barrel part, the outer packaging material attaching part is arranged on the other side between the outer end of the anti-extrusion barrel part and the outer end of the neck barrel part, the tooth mouth part is in a structure matched with a mounting end of a forming drum, and the shortest distance W1 between a rubber sheet VII 41 attached to the outer packaging material attaching part and the inner side face of the tooth mouth of an anti-extrusion capsule is 40 +/-10 mm; the shortest distance W2 between the film VIII 42 attached to the outer layer of the film VII 41 and the inner side surface of the mouth of the turnup capsule is 30 +/-10 mm; the shortest distance W3 between the film IX 43 attached to the outer layer of the film VIII 43 and the inner side face of the tooth mouth of the turn-up capsule is 20 +/-10 mm.

2. The all-steel tri-drum rotary-drawing turn-up capsule structure according to claim 1, wherein: the length L1 of the film VII 41 along the length direction of the turn-up drum is 160 +/-10 mm.

3. The all-steel tri-drum rotary-drawing turn-up capsule structure according to claim 1, wherein: the length L2 of the film VIII 42 along the length direction of the reverse packaging barrel is 160 +/-10 mm.

4. The all-steel tri-drum rotary-drawing turn-up capsule structure according to claim 1, wherein: the length L3 of the film VIII 43 along the length direction of the reverse packaging barrel is 160 +/-10 mm.

5. The all-steel tri-drum rotary-drawing turn-up capsule structure according to claim 1, wherein: the nearest distance m between the end part of the reverse wrapping cylinder and the tooth mouth is 240 +/-20 mm.

6. The all-steel tri-drum rotary-drawing turn-up capsule structure according to claim 1, wherein: the whole length L of the turn-draw turn-up capsule is 500mm +/-30 mm.