WO2015101198A1

WO2015101198A1 - Mechanical turn-up device

Info

Publication number: WO2015101198A1
Application number: PCT/CN2014/094788
Authority: WO
Inventors: 王延书; 齐思晨; 闻德生; 刘明; 胡勐; 李彦海; 谭丽丽; 王祥竹
Original assignee: 软控股份有限公司
Priority date: 2013-12-30
Filing date: 2014-12-24
Publication date: 2015-07-09
Also published as: CN104742396A

Abstract

Provided is a mechanical turn-up device, comprising several turn-up rods, a slide sleeve sleeved on a main shaft, a drive ring connected on a case, and a turn-up rod drive unit used to drive each turn-up rod to turn up and return to position. The turn-up rod drive unit is arranged between the slide sleeve and the drive ring. The present invention drives turn-up rods to turn up via a mechanical drive unit, thereby overcoming defects brought about by the use of a bladder drum, in addition to achieving a large turn-up height in a limited space, and adapting to tyres with different specifications.

Description

Mechanical reverse package device

Technical field

The invention relates to a positive and negative packaging device in a tire building process.

Background technique

The radial tire two-step forming machine comprises a section forming machine and a two-stage forming machine. One section of the forming machine places the inner liner layer, the carcass cord, the reinforcing layer, the bead, the sidewall and the like in a certain order in a forming drum. In the above, the mechanical device for forming the carcass cylinder is formed by the operation of the positive bag, the buckled bead, the reverse bag, and the rolling. The carcass cylinder will then enter the two-stage forming machine through manual or mechanical means to form the embryo.

Figure 1 shows a typical structural layout of a molding machine in the prior art, which mainly comprises a chassis 2, a drum 1, a left and right front and back package device (31, 32), and a feeding device 4. The main process diagrams are as follows:

Step 1. Upper bead: Place the left and right bead on the left and right front and back packs respectively;

Step 2: The capsule is extended: the left and right positive and negative packaging devices respectively move toward the drum, and the capsules respectively protrude to a position in contact with the left and right ends of the drum;

Step 3: bonding the carcass assembly: the feeding device behind the drum conveys the inner liner layer, the carcass cord and the like to the drum, and sequentially fits on the forming drum to form a cylindrical carcass assembly;

Step 4: the finger piece protrudes: the finger piece of the left and right front and back package device protrudes, and the portion of the carcass assembly hanging from the edge of the drum is reduced in diameter;

Step 5: Buckle: The left and right front and back packs place the left and right beads on the carcass assembly, ie buckle Circle process

Step 6. Anti-package boosting: the capsules of the left and right positive and negative wrapping devices are inflated, so that the parts of the carcass assembly located on both sides of the left and right bead are wrapped up by the boosting device to wrap the left and right tires. ring;

Step 7. Bonding the sidewall: the feeding device transports the sidewall to the drum and forms a carcass cylinder, and rolls it by a rolling device to make the materials of the layers closely adhere to each other to remove air bubbles;

Step 8. The drum is unloaded from the cylinder: the diameter of the drum is reduced, so that the carcass cylinder is easily taken off the drum.

As in the above step 6, the current two-step production process uses the reverse-encapsulation capsule to push the carcass assembly suspended outside the bead to the upper surface of the carcass assembly under the axial push of the booster device. In the actual application process, there are the following defects: the capsule punching, the exhaust speed and the limitation of the pushing speed of the boosting device have a great influence on the production efficiency of the tire. Since the anti-encapsulated capsule is a vulnerable part, it needs to be replaced regularly, resulting in high comprehensive use cost, and replacement of repair time, which also takes up normal production time and affects the final production of the tire. In addition, when changing the tire specifications, it is necessary to replace the capsule booster disc, thereby affecting the replacement efficiency of the tooling.

Summary of the invention

In order to solve the problem of the conventional radial tire two-stage one-step bonding process, the reverse-packing device adopts the capsule reverse-packing to bring about problems such as low production efficiency and need to be regularly replaced and repaired, thereby occupying production time, etc. The present invention proposes a mechanical reverse-packing device. And using the following technical solutions to achieve:

A mechanical reverse wrapping device, comprising a main shaft, further comprising: a plurality of reverse wraps, a sliding sleeve disposed on the main shaft, a driving ring connected to the chassis, and a reverse wrapper for driving each reverse wrapper and returning a driving unit, the reverse wrap driving unit is disposed between the sliding sleeve and the driving ring.

Further, the reverse wrap driving unit includes a slide rail, a swing arm and a drive link disposed on the sliding sleeve, the swing arm is hinged on the reverse wrap rod at one end, and the other end is fitted on the slide rail. One end of the drive link is hinged to the swing arm and the other end is hinged to the drive ring.

Further, a sliding seat is disposed on the sliding rail, and the swing arm is hinged on the sliding seat.

Further, the swing arm is fitted to the slide rail by a bearing.

Optionally, a gap is formed between the hinge points of adjacent driving links on the driving ring, and a toothed ring is integrally formed; and the driving ring and the sliding sleeve are symmetrically disposed with the toothed ring. a retaining ring, the teeth of the retaining ring are disposed opposite to the notch of the driving ring.

Further, the swing arm includes a head section, an intermediate section and a tail section, the head section and the tail section are respectively inclined in opposite directions with respect to the middle section, and an angle between the head section and the middle section is 110° At -140°, the angle between the tail section and the intermediate section is 120°-150°, and the reverse wrap is hinged on the intermediate section.

Compared with the prior art, the advantages and positive effects of the present invention are as follows:

1. The invention realizes the reverse package by driving the reverse wrap rod by the mechanical drive unit, on the one hand, overcomes the defects brought by the use of the capsule drum, on the other hand, the large reverse package height can be realized in a limited space, and can adapt to different specifications. Tires.

2. The invention adopts the driving connecting rod to drive the swing arm to drive the reverse-packing bar anti-package, has the advantages of simple structure and low cost, and can be widely applied to the two-stage fitting process of the radial tire.

Other features and advantages of the present invention will become apparent from the Detailed Description of the Drawing.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

Figure 1 is a structural layout view of a prior art molding machine;

In Figure 1: 1, drum; 2, chassis; 31, left forward and reverse package device; 32, right forward and reverse package device; 4, feeding device.

2 is a schematic view showing the working state of a mechanical reverse wrapping device according to an embodiment of the present invention;

3 is a schematic view showing a contraction state of a mechanical reverse wrapping device according to an embodiment of the present invention;

4 is a schematic structural view of a swing arm according to an embodiment of the present invention;

Figure 2 to Figure 4: 1, drive ring; 1-1, fixed seat; 2, sliding sleeve; 2-1, slide rail; 2, 2, slide; 3, drive link; 4, reverse wrap; 4-1, roller; 5, swing arm; 5-1, tail section; 5-2, middle section; 5-3 head section; 6, spindle; 7, carcass drum; 8, push rod; .

detailed description

2, FIG. 2 is a schematic structural view of the mechanical reverse wrapping device of the embodiment after the reverse wrapping, and FIG. 3 is a schematic structural view of the reverse pivoting state of the mechanical reverse wrapping device of the embodiment.

As shown in FIG. 2 and FIG. 3, the mechanical reverse wrapping device of the embodiment includes a plurality of reverse wraps 4, a sliding sleeve 2, a driving ring 1, a swing arm 5 and a driving link 3.

The number of the reverse wraps 4 may be specifically determined according to the specifications of the tire. In this embodiment, the number of the reverse wraps 4 is 12, and each of the reverse wraps 4 is mounted with a roller 4-1 at one end and hinged at the other end. On the arm 5. The slip The movable sleeve 2 is set on the main shaft 6, and a plurality of slide rails 2-1 are arranged thereon, and the number of the slide rails 2-1 corresponds to the number of the reverse wrap rails 4. The driving ring 1 is connected to the chassis, and the driving links 3 are hinged by the fixing base 1-1. Similarly, the number of the driving links 3 also corresponds to the number of the reverse wraps 4, and the driving link 3 The other end is hinged to the swing arm 5, and one end of the swing arm 5 is hinged to the reverse wrap 4, and the other end is fitted to the slide rail 2-1 to be movable back and forth along the slide rail 2-1 in the axial direction.

Since each reverse wrapper relies on each reverse wrapper driving unit disposed between the sliding sleeve and the driving ring to realize reverse wrapping and returning, the structure of the driving unit is not limited to the example of the embodiment, and the connecting rod driving can also be adopted. The pulley structure drives the reverse wrapper. In the following, the driving process will be described by taking the reverse-bar drive unit composed of the slide rail 2-1, the swing arm 5 and the drive link 3 on the sliding sleeve as an example.

The axial power mechanism on the molding device moves the entire component to a predetermined position through the push rod 8, and starts the normal tire molding and fitting step. After the steel ring completes the upper ring motion, the driving ring 1 is pushed by the boosting mechanism of the molding device. The driving link 3 is pushed to move in the axial direction, and at the same time, the swing arm 5, the sliding seat 2-1, the reverse wrap 4, the roller 4-1 and the like are driven to generate an associated motion, and the reverse wrapping action is completed. After the end of the reverse package, the drive ring 1 is driven by the boosting mechanism of the molding device to drive the related components to move in the opposite direction, and finally returns to the initial state, and the tire production enters the next process. In the embodiment, after the shrinking and reverse wrapping ends of the reverse wrap bar 4, each of the reverse wrap rods is parallel to the axial direction.

In this embodiment, the swing arm 5 can roll or slide on the slide rail 2-1. Specifically, when the slide fits, the slide bracket 2-2 can be disposed on the slide rail, and the swing arm 5 is hinged to the slide seat 2 - 2, when rolling fit, a track bearing can be mounted at the end of the swing arm 5, and the swing arm 5 is fitted to the slide rail by a track bearing.

In addition, in order to meet the needs of the driving stroke in a limited space, the driving ring of the embodiment is a tooth. a ring, in particular, a gap between the hinge points of adjacent drive links on the drive ring, the teeth between the notches, and the tooth ring between the drive ring and the sliding sleeve A symmetrical ring is disposed, and the teeth of the baffle are disposed opposite to the notch of the drive ring. During the reverse wrapping process, the driving ring moves toward the retaining ring, and the teeth of the driving ring extend into the notch of the retaining ring, and the teeth of the retaining ring extend into the notch of the driving ring until the two are staggered together, after the stroke ends, the driving ring and the driving ring The teeth on the retaining ring and the notch abut each other to serve as a limit.

Referring to Figure 4, the swing arm of the present embodiment includes a head section 5-3, a middle section 5-2 and a tail section 5-1, and the tail section 5-1 is hinged on the reverse wrap, the head section 5-3 and The tail sections 5-1 are inclined in opposite directions with respect to the intermediate section 5-2, respectively, and the angle between the head section 5-3 and the intermediate section 5-2 is 110°-140°, and the tail section 5- The angle between 1 and the intermediate section 5-2 is 120°-150°, and the drive link 3 is hinged to the intermediate section 5-2. In this way, it is guaranteed to achieve a large anti-packet height in a minimum space.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any one skilled in the art may use the above-disclosed technical content to change or modify the equivalent embodiment. However, any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

A mechanical reverse wrapping device, comprising a main shaft, characterized by further comprising: a plurality of reverse wraps, a sliding sleeve disposed on the main shaft, a driving ring connected to the chassis, and a driving and returning gear for driving each reverse wrapper The reverse wrap driving unit is disposed between the sliding sleeve and the driving ring.
The mechanical reverse wrapping device according to claim 1, wherein the reverse wrap driving unit comprises a slide rail, a swing arm and a driving link disposed on the sliding sleeve, and one end of the swing arm is hinged on the reverse wrap rod The other end is fitted on the slide rail, and one end of the drive link is hinged on the swing arm, and the other end is hinged on the drive ring.
The mechanical reverse wrapping device according to claim 2, wherein the sliding rail is provided with a sliding seat, and the swing arm is hinged on the sliding seat.
The mechanical reverse wrapping device according to claim 2, wherein said swing arm is fitted to said slide rail by a bearing.
The mechanical reverse wrapping device according to claim 3 or 4, wherein a gap is formed between the hinge points of adjacent driving links on the driving ring, and a toothed ring is integrally formed; the driving ring and the driving ring are A retaining ring disposed symmetrically with the toothed ring is disposed between the sliding sleeves, and the teeth of the retaining ring are disposed opposite to the notch of the driving ring.
The mechanical reverse wrapping device according to claim 5, wherein said swing arm comprises a head section, an intermediate section and a tail section, said head section and the tail section being inclined in opposite directions with respect to the intermediate section, respectively, The angle between the head section and the middle section is 110°-140°, and the angle between the tail section and the middle section is 120°-150°, the reverse wrap is hinged on the middle section.