CN113681788A

CN113681788A - Novel process tire combined forming and vulcanizing production line

Info

Publication number: CN113681788A
Application number: CN202110990227.5A
Authority: CN
Inventors: 朱小君; 姚天琳; 朱健; 朱世兴
Original assignee: Beijing Duobeili Tire Co ltd
Current assignee: Beijing Duobeili Tire Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-11-23
Anticipated expiration: 2041-08-26
Also published as: CN113681788B

Abstract

The utility model provides a new technology tire combination molding and vulcanization production line, includes matrix processing unit, tread processing unit, shaping unit and vulcanization unit, matrix processing unit, tread processing unit include circulation track system, transfer device and railcar respectively, and respective circulation track system all connects the annular tread rubber combination molding machine of the matrix that will handle of shaping unit and tread shaping for treating the vulcanization tire, the vulcanization unit includes tire vulcanization track system and does not have the encapsulation cover vulcanizer, it is the tire secondary vulcanization equipment of encapsulation cover not to have the encapsulation cover vulcanizer, including encircle and treat the peripheral annular cramp body of vulcanization tire, provide vulcanization pressure for the tire through cramp effect. The invention reduces the investment of new tire or tire retreading production equipment adopting a new process and the later use cost, and can adopt a seal-sleeve-free vulcanization method to complete a new tire and tire retreading production line so as to achieve the purpose of reducing the comprehensive production cost.

Description

Novel process tire combined forming and vulcanizing production line

Technical Field

The invention relates to the technical field of tire production and retreading, in particular to a new process tire forming and vulcanizing production line.

Background

The retreading process of the tire commonly used in the tire retreading industry comprises model retreading and precuring tread retreading, wherein the precuring tread retreading process has the characteristics of less equipment investment, low pollution and low energy consumption, and the finished retreaded tire prepared by the process has better wear resistance and puncture resistance, thereby being applied in a large scale. The method is characterized in that a precured tread part is prepared independently at first, and the tread can be vulcanized independently through higher vulcanization pressure, so that the comprehensive performance of the tread is improved. When the retreaded tire is prepared, the used tire body is ground, repaired and the like, and then the encapsulating sleeve and related components are used for coating, and then the obtained product is put into a vulcanizing tank for pressurization and heating for vulcanization, and finally a retreaded finished product is formed.

In recent years, some tire manufacturers improve the common production process of a new tire, split the original tire into annular tire treads by one-time integral vulcanization molding, respectively vulcanize and mold tire bodies, separately prepare pre-vulcanized parts, then combine the pre-vulcanized parts and integrally vulcanize the pre-vulcanized parts again. In the same way, in the process, as the tread and the tire body are vulcanized respectively, the vulcanization pressure of the tread component is far higher than that of the tire body, the tread component with enhanced performance can be obtained, and the final new tire product obtains the optimal performance combination. The tire body component and the tire tread component can be prepared on the existing new tire equipment, but no special production equipment exists in the subsequent production process, and the preparation of the new tire is completed by adopting equipment for retreading the precured tire and combining a wrapping and vulcanizing mode.

Because the encapsulation cover mode is used for producing new tires or retreading old tires, equipment such as a vulcanizing tank, an encapsulation cover dismounting and mounting machine, an integral tank inlet and outlet rail and related accessories need to be configured, the investment is large, and the later use cost is also high. The vulcanizing tank needs to be inflated and heated in the using process, and a large amount of heat can be taken away by exhaust gas of the vulcanizing tank; in the process of heating the tire by the vulcanizing tank, the tank body, the tire body, the encapsulating sleeve and other clamps absorb heat and radiate the environment, and certain cost is inevitably generated due to the loss of the two energy sources. The automatic degree and the production efficiency of producing new tires by using equipment for retreading precured tires are low, and the labor cost is high. The accessories such as the encapsulating sleeve and the hose are high in price, the service life is short due to long-term use in a high-temperature environment, and the use cost is continuous in the aspects of needing periodic maintenance or replacement and the like.

Based on the above, the current production line has high energy consumption and high comprehensive production cost, and is not suitable for the vulcanization process of producing new process tires and retreaded tires by adopting a precuring component mode.

Disclosure of Invention

In order to overcome the defect that the prior art does not have a new tire and a retreading vulcanization production line suitable for a precured tire body and tire tread combined production process, the invention provides a semi-automatic production line for brushing and grinding a tire body and a ring-shaped tire tread, combining and molding components and heating, pressurizing and vulcanizing and molding of a new process tire without an encapsulating sleeve.

The technical scheme of the invention is as follows:

a combined forming and vulcanizing production line of a new process tire is characterized by comprising a tire body processing unit, a tread processing unit, a forming unit and a vulcanizing unit, wherein the tire body processing unit and the tread processing unit respectively comprise a circulating track system, a transfer device and a railcar, the respective circulating track systems are connected with an annular tread rubber combined forming machine of the forming unit, and the transfer devices are arranged beside tracks of the respective circulating track systems;

the track side of the tire body processing unit comprises a polishing station, the track side of the tire tread processing unit comprises an annular tire tread rubber brushing and grinding machine, the polishing station, the annular tire tread rubber brushing and grinding machine and the joint of each track and the forming unit are respectively provided with a transfer mechanical device,

the molding unit comprises an annular tread rubber combined molding machine for molding the processed tire body and the tread into a tire to be vulcanized,

the vulcanizing unit comprises a tire vulcanizing track system and a non-encapsulating sleeve vulcanizing machine, the annular tread rubber combined forming machine is connected with the tire vulcanizing track system, the tire vulcanizing track system comprises a circulating track for enabling the non-encapsulating sleeve vulcanizing machine to circularly operate along the track, or a tank inlet and outlet track for integrally moving the non-encapsulating sleeve vulcanizing machine into and out of a vulcanizing tank, and a steel ring mounting station and a steel ring dismounting station are arranged on a vulcanizing operation path of the non-encapsulating sleeve vulcanizing machine;

the sealing-sleeve-free vulcanizing machine is sealing-sleeve-free tire secondary vulcanization equipment, comprises an annular clamping body surrounding the periphery of a tire to be vulcanized, and provides vulcanization pressure for the tire through the clamping effect.

Preferably, the carcass processing unit comprises a rolling brushing glue machine and a quick drying device.

Preferably, the track system of the carcass processing unit is a stacking track system, and the transfer device is a rotating crane.

Preferably, the polishing station is provided with a tire body polisher, the transfer mechanical device between the tire body polisher and the rail is a double-arm manipulator, and double arms of the double-arm manipulator are respectively circularly transferred between the tire body polisher and the tire body rail car.

Preferably, the transfer mechanism at the junction of the circulating track system of the carcass processing unit and the shaping unit is provided with a single-arm manipulator.

Preferably, the circulating track system of the tread processing unit is a stacking track system, and the transfer device is a rotating crane.

Preferably the tread treatment unit comprises a cement fast rolling brush dryer station.

Preferably, the annular tread rubber combined forming machine is of a double-expansion drum type structure, 180-degree rotation and positioning are carried out through a rotating mechanism, the tire receiving side of the annular tread rubber combined forming machine comprises a tire preheating mechanism and a buffer rubber extruder, the tire receiving side of the annular tread rubber combined forming machine comprises a tread expanding mechanism, the tire loaded with the buffer rubber layer is rotated to the tread expanding mechanism side through the rotating mechanism, and the assembly of the tire and the tire is realized.

And a steel ring accumulating type track system is arranged between the steel ring mounting station and the steel ring dismounting station.

Preferably, the tire vulcanization track system is a tire accumulation type vulcanization track system, the non-envelope vulcanizing machine is a hanging type non-envelope vulcanizing machine, and the non-envelope vulcanizing machine comprises an electric bow for receiving electric power from a power grid distributed on a track and an automatic control heating system.

Further preferred includes lowering an empty, hanging, non-encapsulating vulcanizing machine stopped on the tire accumulating track to a molding unit to encapsulate a molded tire and lifting to a vulcanizing machine encapsulating machine on the tire accumulating track.

Preferably, the rail behind the polishing station comprises a branch line circulating rail for processing the tire body to be retreaded, wherein the branch line circulating rail comprises a small polishing station, a repairing station, a mucilage spraying station and an inspection station.

Preferably, the section of the annular clamping body is U-shaped, the annular clamping body is an annular component with an opening, or an annular component without an opening but with a tensioning device, or a plurality of annular components combined with each other, the opening and the plurality of annular components combined with each other are spliced and locked through a connecting device, the bottom surface of the U-shaped is corresponding to the driving surface of the tread, the two sides of the U-shaped are corresponding to the side surfaces of the tread and the tire casing, the curved surface of the inner surface of the U-shaped of the annular clamping body is directly or indirectly attached to the curved surfaces of the tire crown and the tire casing, and the cushion rubber is directly or indirectly sealed.

Further preferably, the indirect mode includes that the annular hooping body is indirectly sealed and attached to the tire crown and the tire body through the sealing rubber rings or the air bags, the sealing rubber rings or the air bags are at least arranged between two ends of the U-shaped bottom surface of the annular hooping body and the tire tread rubber and between two side surfaces of the annular hooping body and the side surfaces of the tire tread and the tire body, the annular surface of the annular hooping body is provided with the air charging and discharging ports, the sealing rubber rings or the air bags on the two side surfaces can also be respectively provided with the independent sealing air chambers, and the two sides are respectively provided with the air charging and discharging ports of the air chambers.

The tire curing track system further preferably comprises a circulating track for circulating the non-envelope curing press along the track, and the sealing rubber ring or the air bag is provided with a heating device.

Preferably, the circulating track comprises a static vulcanization area, and a power supply interface and an inflation interface are distributed beside the track of the static vulcanization area.

The invention has the following technical effects:

the production line can be used as an intelligent new process for producing tires by precuring and a tire retreading production line, and mainly comprises a tire body processing unit, a tread processing unit, a forming unit and a vulcanizing unit.

Description of the process flow of the automatic production line:

firstly, pre-vulcanizing a tire body:

1. prevulcanization of new carcass processing

(1) The prevulcanized new tire body is conveyed to a tire body track such as a hoisting station of a tire body stacking track by a material transfer vehicle. (2) The carcass is lifted onto the carcass rail car and released by a special transfer device, such as a rotating crane. (3) The tire body on the tire body rail vehicle is transferred to a tire body grinding machine by a preferred double-arm manipulator to carry out pasting surface grinding and brushing. (4) And transferring the preferable carcass to a mucilage coating station for pasting surface mucilage rolling brushing and drying. (5) The dried casing is then aligned with a transfer mechanism, such as a robot, before being transferred to the building machine.

2. Old carcass processing

When a retreaded tire is manufactured by using the production line, the carcass processing process comprises the following steps:

(1) and the old tire to be retreaded is conveyed to a hoisting station of the tire body accumulation type track by a material transfer vehicle. (2) And hoisting the used tire to the tire body rail car by a special rotating crane and then releasing the used tire. (3) The used tire on the tire body rail car is converted to the tire body grinding machine by the double-arm manipulator to be ground to become a tire body to be retreaded. (4) And the tire body to be retreaded is transferred from the tire body track to the tire retreading track along with the tire body track vehicle, and enters a tire retreading treatment process. (5) And moving the tire body to be retreaded to a small polishing station, supporting the old tire body by using a rotary tire lifting machine, and locally polishing, trimming and checking damaged parts such as holes, wounds and the like of the old tire body. (6) And (4) transferring the old tire body subjected to the small polishing treatment to a repairing station, repairing and filling the preorder treatment position, and releasing after the faults and defects of the tire body are eliminated. (7) And (4) enabling the old tire body to enter a glue spraying station, spraying glue on the adhesive surface of the tire body, drying, and releasing after the glue is dried. (8) And the processed old tire body enters an inspection station, the tire retreading treatment quality in each procedure at the early stage is inspected and judged, and the released qualified old tire body is returned to a tire body rail along with a rail car and then is conveyed to the forming machine to be aligned with the center of the manipulator.

Second, transfer of the carcass

1. And grabbing the periphery of the tire body by using a manipulator and placing the tire body on an expansion drum of the annular tread rubber combined forming machine. 2. And operating the expansion drum to expand to support the tire body, inflating the tire body according to the set pressure, and starting a preheating system to heat the tire crown part of the tire body. 3. Starting the buffer rubber extruder to spread buffer rubber to the tire crown part.

Thirdly, processing the pre-vulcanized tread rubber:

1. and conveying the pre-vulcanized tread rubber to a tread rubber accumulation type track hoisting station by a material transfer vehicle. 2. The tread rubber is hung on the tread rail car by a special hoisting car and then is released. 3. And the tire tread on the tire tread rail car is placed on a clamp of the automatic tire tread rubber sticking surface grinding and brushing machine by a manipulator to grind and brush the inner surface of the tire tread. 4. And conveying the tread rubber subjected to brushing to a station of a rubber cement quick rolling brush dryer, and performing rubber cement rolling brush and drying on the inner surface. 5. And conveying the tread rubber dried by the rolling brush to a station of the combined forming machine by using a tread rubber track trolley, and taking down the precured tread by using a tread rubber expansion mechanism. 6. The unloaded tread rail car returns with the track to the starting point.

Fourthly, a semi-finished tire molding process:

1. after sizing, the double expansion drums of the forming machine rotate 180 degrees, a vulcanizing machine sleeving machine is started to move the expansion mechanism with the precured tire tread to the tire body, and the center of the expansion mechanism is aligned and sleeved, and then the expansion mechanism is pressed and formed.

2. The non-encapsulating sleeve vulcanizing machine descends to be aligned with the center of the formed semi-finished product through the lifting system and then translates, the annular hooping body is sleeved with the formed tire and then returns to the rail along with the lifting system, and the non-encapsulating sleeve vulcanizing machine preferably adopts a non-encapsulating sleeve tire secondary vulcanizing device combined with a rail car and can flow on the rail along with the rail car. The main structure of the tire vulcanizing machine is an annular hoop body which surrounds the periphery of a tire to be vulcanized, can replace an encapsulating sleeve to isolate buffer rubber from air, and provides vulcanization pressure for the tire through the hoop function. When using a non-envelope vulcanizer without heating, the vulcanization of the tyre is carried out jointly with a device with a heating system, for example in combination with a vulcanizing tank: after the tyre is loaded into the vulcanizing machine without the packing sleeve, the tyre is moved into the vulcanizing tank through the integral in-out tank track, and the vulcanizing machine and the tyre are integrally heated by utilizing the heating function of the vulcanizing tank, so that the tyre is vulcanized at proper vulcanizing pressure and temperature. When the non-envelope vulcanizing machine with the heating function is adopted, the vulcanization of the tire can be independently completed.

3. The vulcanizing machine without the packing sleeve moves to a steel ring installation station, and the manipulator is started to lock the steel ring and inflate the tire cavity and the tire crown air bag according to set pressure.

V, sulfurization process

1. The vulcanizing machine without the encapsulating sleeve runs along a circulating track or enters a vulcanizing tank and starts heating to start a vulcanizing process. For small-scale circulating track type application, a static vulcanization area can also be arranged on the circulating track, and the circulating track runs to the next process along the track after vulcanization, so that the distance of the circulating track is shortened.

2. And the vulcanizing machine without the packing sleeve completes vulcanization according to the set time and temperature rule, the vulcanizing machine runs to a steel ring disassembling station, the steel ring is disassembled by a manipulator, the vulcanizing machine without the packing sleeve is released, and the vulcanized tire is the finished tire product.

3. The vulcanizing machine sleeving machine descends the no-load hanging and packaging non-encapsulating sleeving vulcanizing machine stopped on the tire accumulating type track to the center of an expansion drum of the molding unit to sleeve the molded tire, horizontally moves to the outer side of the expansion drum, lifts the expansion drum to the accumulating type track, and circularly operates.

The aforementioned annular tightening body, preferably having a U-shaped cross section, is a ring component with an opening, or a ring component without an opening but with a tensioning device, or a plurality of ring components combined with each other, the opening, the plurality of ring components combined with each other are spliced and locked by a coupling device (such as a buckle or a pin), the bottom surface of the U-shaped cross section corresponds to the upper surface of the tread, the two sides of the U-shaped cross section correspond to the side surfaces of the tread and the carcass, the curved surface of the U-shaped inner surface of the annular tightening body directly or indirectly abuts against the curved surfaces of the tire crown and the carcass, and directly or indirectly seals the cushion rubber. The invention adopts a ring surface hooping structure assembly, coats the assembly on a tire crown part to be vulcanized, combines a tire body, a precured tire tread and a buffer rubber layer into a whole, and continuously maintains the required vulcanization pressure and temperature until the vulcanization is finished. In order to prevent air from entering the bonding surface to form bubbles and other defects, the invention takes sealing measures to the overflowing part of the buffer glue and obtains satisfactory effect. The structure solves the defects in the existing sealing sleeve vulcanization process, does not need to assemble sealing sleeves and other accessories in the production process of a new tire adopting a precured tire tread and a tire body and the precured retreading process of an old tire, can reduce equipment investment and the expensive cost of replacing the sealing sleeves and other accessories regularly, reduces the loss of the sealing sleeves and the use cost brought by replacement, saves the capital investment of related equipment and equipment, reduces the labor intensity and reduces the labor cost, and is particularly more suitable for the hanging type circulating vulcanization track of the production line under the condition of being provided with a heating device.

The indirect mode comprises that the annular hooping body is indirectly sealed and attached to the tire crown and the tire body through the sealing rubber rings or the air bags, the sealing rubber rings or the air bags are at least arranged between two ends of the U-shaped bottom surface of the annular hooping body and the tire tread rubber and between two side surfaces of the annular hooping body and the side surface of the tire tread tire body, the annular surface of the annular hooping body is provided with air charging and discharging ports, the sealing rubber rings or the air bags on the two side surfaces can also be respectively provided with independent sealing air chambers, and the two sides are respectively provided with one air chamber air charging and discharging port. The annular hooping body is indirectly sealed and attached to the tire crown and the tire body through the sealing rubber ring or the air bag and the injected gas in the sealing rubber ring or the air bag, and the buffer rubber is sealed. The sealing rubber ring and the air bag can be provided with heating devices.

Preferably, the automatic conveying of the precured tread rubber consists of a suspended accumulation type track, the automatic conveying of the precured tire body and the old tire body consists of a suspended accumulation type track, the automatic conveying of the tire retreading consists of a suspended accumulation type track, the automatic conveying of the tire vulcanization consists of a suspended accumulation type track, and the automatic conveying of the vulcanized steel ring consists of a ground accumulation type track. The automatic conveying track is provided with a railcar parking control mechanism, and the transfer between workpieces of the railcar and production line equipment is completed by an intelligent manipulator; the conveying track is provided with an independent motion power mechanism; different materials are provided with special turnover vehicles. The automatic control center can input different motion beat parameters to each station of the production line according to the requirement.

The invention has the following advantages:

1. the labor intensity and labor cost are reduced; 2. the production efficiency is improved; 3. energy consumption is saved; 4. the exhaust emission is reduced; 5. the investment of production equipment and workshops is reduced; 6, improving the intelligent production, reducing the cost of the finished product production link and improving the product quality.

The invention develops a tire combined forming and vulcanizing production line suitable for a precured tire body and tire tread combined production process, which is used for reducing the investment and later use cost of new tire or tire retreading production equipment adopting a new process in the production process of new tire or tire retreading of the new process in a precured tire body and tire tread component mode, and can be used for completing a new tire and tire retreading production line by adopting a non-envelope vulcanization method so as to achieve the purpose of reducing the comprehensive production cost.

Drawings

FIG. 1 is a schematic view of the production line structure of example 1;

FIG. 2 is an enlarged schematic view of the carcass-processing unit of FIG. 1;

FIG. 3 is an enlarged schematic view of the tread management unit of FIG. 1;

FIG. 4 is an enlarged schematic view of the molding unit and the curing unit of FIG. 1;

FIG. 5 is a schematic view of the production line structure of example 2;

FIG. 6 is an enlarged schematic view of the used carcass processing unit of FIG. 5;

FIG. 7 is a schematic sectional view of the band-vulcanized tire clamped by the annular tightening body according to example 1;

FIG. 8 is a schematic sectional view of the band-like tightening body according to example 2 after the vulcanized tire is clamped.

The reference numbers in the figure are as follows:

1-tire casing rail car, 2, 2' -rotating crane, 3-double-arm manipulator, 4-tire casing polisher, 5-fast dry rolling brushing slurry machine, 6-single-arm manipulator, 7-buffer rubber extruder, 8-tire casing preheating device, 9-annular tread rubber combined forming machine, 10-annular tread rubber rail car, 11-annular tread rubber brushing and grinding machine, 12-vulcanizer sleeving machine, 13-non-encapsulation vulcanizer, 14-steel ring first single-arm manipulator, 15-steel ring second single-arm manipulator, 17-steel ring ground accumulation and release type rail, 18-tire casing ground accumulation and release type rail, 19-tire surface suspension accumulation and release type rail, 20-suspension accumulation and release type vulcanization rail, 21-isolation dustproof device, 22-tire retreading accumulation and release type branch line circulation rail, 23-a small tire polishing station, 24-a repairing station, 25-a glue spraying station, 26-an inspection station, 27-a tire vulcanizing tank and 28-an integral in-out tank moving frame,

31-tyre body, 32-buffer rubber, 33-tread rubber, 34-connecting device, 35-annular clamping body, 36-heating type tyre shoulder air bag, 37-heating type tread air bag and 39-air bag inflation and deflation port.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description of the invention in conjunction with the accompanying drawings.

Example 1

As shown in fig. 1, the present embodiment is a production line for producing a new tire by using a new pre-vulcanization process, and the whole production line is shown in fig. 1, and includes the following units, and fig. 2-5 are enlarged views of each unit:

first, the tire body processing unit

As shown in fig. 2, the carcass processing unit includes a power and free circulating track system and a carcass rail car 1, the carcass is transported to a rotary crane station beside the track by a material transfer vehicle, and the carcass is hoisted to the empty carcass rail car 1 stopped at the station by the rotary crane 2. When the tire body rail car 1 is released, the tire body moves clockwise to a grinding station under the drive of a rail and is stopped after reversing, the tire body is taken down from the tire body rail car 1 by the double-arm mechanical arm 3 of the transfer mechanical device, the ground previous tire body is put on an empty rail car, and then the taken-down tire body is put into a tire body grinding machine 4, such as a double-head grinding machine, for grinding. And after releasing the tire body rail car 1 with the polished tire body, moving the tire body rail car 1 out of the station and reversing, moving the tire body rail car to the station 5 of the quick-drying rolling brushing mortar machine along with the rail, stopping, and performing rolling brushing and drying on the tire body adhesive surface mortar. The tire body which is rolled with the mucilage is transferred to a forming station of a forming unit after being released along with the rail car 1 and is reversed and stopped, the tire body is taken down from the tire body rail car 1 by using a single-arm manipulator 6 of a transfer mechanical device and is put on an annular tread rubber combined forming machine 9, and the unloaded tire body rail car 1 is driven by a rail to be transferred to a station of the rotary crane 2 again after being released to prepare for loading the tire body.

Second, tread processing unit

As shown in fig. 3, the tread handling unit includes a tread suspended power and free track system and an annular tread band railcar 10. The annular tire tread is conveyed to a station of a rotary crane 2 'beside a tire tread suspension accumulation type track system by a material conveying vehicle, and the tire tread is lifted to an annular tire tread rubber track car 10 stopped at the station by the rotary crane 2'. The annular tread rubber rail car 10 moves out of the station and reverses after being released, and reverses and stops after moving to the tread polishing station anticlockwise under the driving of the suspended accumulation type rail, and the tread is taken down by a tread gripping device (not shown) and then is loaded into an annular tread rubber brush grinding machine 11 for polishing the inner surface. The ground tire tread is loaded on an empty annular tire tread rubber track car 10 by a tire tread gripping device (not shown), can be further preferably shifted to a station (not shown) of a rapid rubber cement rolling brush dryer to finish rubber cement rolling brush and drying on the inner surface of the tire tread, the annular tire tread rubber track car 10 is shifted out of the station of the rapid rubber cement rolling brush dryer to be reversed, is driven by a track to flow downwards to a forming station and then is turned and stopped, and the tire tread is taken down by an expanding mechanism of an annular tire tread rubber combination forming machine 9 to be ready to be sleeved on a tire body. And after the unloaded annular tread rubber rail car 10 is released, moving out of the forming station, reversing, and re-flowing to a rotary crane station under the drive of the suspended accumulation type rail to reverse and stop, and preparing to load the tread.

Third, forming unit and vulcanizing unit

As shown in fig. 4, the annular tread rubber compound molding machine 9 may have a double expansion drum structure. After a tire body taken down from a tire body ground accumulation type track by a single-arm manipulator 6 is loaded into a vacant expansion drum of an annular tread rubber combined forming machine 9, the tire body is firstly heated by a tire body preheating mechanism 8, so that the bonding of buffer rubber is facilitated. When the tire body reaches a preset temperature, the cushion gum is extruded and applied to the tire body by using a cushion gum extruder 7. After the opposite side of the formed tire is transferred from the other expansion drum to the tire suspension stacking track, the rotating mechanism is operated to rotate the tire body with the cushion gum layer to the opposite side for fitting the tire tread, and simultaneously the empty expansion drum is rotated to the position for applying the cushion gum for fitting the tire body.

And horizontally moving the tread expanding mechanism, conveying the tread to a tire body position where the buffer rubber layer is paved, sleeving the tire body, and rolling and fitting the tread by a compression roller to complete the molding of the tire to be vulcanized. The vulcanizer 12 lowers the non-envelope vulcanizer 13 stopped on the tire suspension stacking track to the center of the expansion drum and horizontally moves to the molded tire, and the annular hoop body of the non-envelope vulcanizer 13 and the automatic control heating system are sleeved on the tire to be vulcanized. The vulcanizing machine sleeving machine 12 moves horizontally to take the vulcanizing machine 13 without the packing sleeve with the tire from the expansion drum, the lifting mechanism lifts the vulcanizing machine 13 without the packing sleeve to the tire suspension accumulation type track and releases the same, the vulcanizing machine 13 without the packing sleeve is driven by the tire suspension accumulation type track to move out of a forming station and change the direction, the vulcanizing machine stops moving to a steel ring mounting station along with the track anticlockwise, a steel ring first single-arm manipulator 14 is utilized to take the steel ring off from the steel ring ground accumulation type track and mount the steel ring on the vulcanizing machine 13 without the packing sleeve to be vulcanized, and the air bags on the steel ring and the vulcanizing machine 13 without the packing sleeve are subjected to pressure maintaining and air inflation. And starting an automatic control heating system on the rubber sleeve-free vulcanizing machine 13, and vulcanizing and monitoring the tire according to set parameters. The encapsulating sleeve-free vulcanizing machine 13 moves out of the steel ring installation station, moves along with the track, keeps the vulcanization process, and closes the automatic control heating system after a set time. And the vulcanized tire enters a steel ring disassembling station and stops, the steel ring is disassembled by using a steel ring second single-arm manipulator 15 and is placed on a steel ring ground accumulation type track, the tire is taken down from the rubber ring vulcanizing machine 13 without the sealing sleeve and is placed on a tire conveying roller way, and the unloaded rubber ring vulcanizing machine 13 without the sealing sleeve is reversed and stopped after being transferred to a forming station along with the track flow.

The tire body polisher 4 and the annular tread rubber brushing and grinding machine 11 of different units can be placed together through the arrangement of the track positions and are isolated by the isolation dustproof device 21, so that the influence on the environment is avoided, and the cost is saved.

As shown in fig. 7, the annular tightening body of the present embodiment mainly includes two annular tightening bodies 35 connected by a rotating shaft, a connecting device 34 such as a buckle or a pin fixed to the two annular tightening bodies and opened at another position except the joint of the rotating shaft, a heated shoulder bladder 36 and a heated tread bladder 37 disposed between the annular tightening body 35 and the tread rubber 33, and the heated shoulder bladder 36 and the heated tread bladder 37 cover the tread portion and the shoulder portions on both sides, respectively.

The air pressure after the inflation of the air bag is transmitted to the layer of cushion rubber 32 above the tire body 31 through the tire tread by the locking operation cooperation of the coupling device 34, and the required vulcanization pressure is provided for the cushion rubber. The heated shoulder bladders 36 on both sides prevent outside air from entering the cushion rubber 32. The open ends of the annular tightening bodies 35 are tightened to each other to form an annular structure surrounding the crown of the tire, and the sealed chamber is inflated to and maintained at 3-5kgf/cm through the air bag inflation and deflation ports 39 under the tightening force²The air pressure can make the tread tightly stick to the buffer rubber under the action of the air pressure, and the effect of the tightening force provided by the annular tightening body 35 is improved. The pressure, temperature and time rule of the vulcanization process are set by an automatic control heating system to carry out vulcanization.

Because the tensioning effect can be realized by inflating the air bag, the connecting device can only use the pin shaft without a buckle, the cost is lower, and the assembly and disassembly are more convenient.

Example 2

The embodiment is a common production line for producing a new tire and retreading by adopting a new process, and the common production line comprises the following parts:

firstly, a new tire body processing unit; secondly, an old tyre body processing unit; thirdly, a tread processing unit; fourthly, a forming unit and a vulcanizing unit; one, three and four parts of the method are the same as the embodiment 1, share a production line with a new tire, and are different from the embodiment 1 in that an old tire body processing unit is added, the whole method is shown as a figure 5, and the enlarged views of all units are shown as figures 2-4 and 6:

the old tire to be retreaded is conveyed to a hoisting station of the tire body suspension accumulation type track by a material transfer vehicle, and the old tire is hoisted to the tire body rail vehicle 1 by a special rotating crane 4 and then released. The used tire on the tire body rail car 1 is transferred to a tire body grinding machine 4 by a double-arm manipulator 3 to be ground to become a tire body to be retreaded. The tire body to be retreaded is transferred into the tire retreading accumulation-release type branch line circulating track 22 along with the tire body railcar 1 from the tire body track, and enters a tire retreading treatment process, as shown in fig. 6. And moving the tire body to be retreaded to a small polishing station 23, supporting the old tire body by using a rotary tire lifting machine, and locally polishing, trimming and checking damaged parts such as holes, wounds and the like of the old tire body. And the old tire body which is subjected to the small polishing treatment flows to a repairing station 24, and the pre-processed position is repaired and filled to recover the structural shape of the original tire and then the tire is released. The tire body enters a mucilage spraying station 25, mucilage is sprayed and dried on the bonding surface of the tire body and the tire surface, and the tire is released after the mucilage is dried. And (4) entering an inspection station, inspecting and judging the tire retreading treatment quality in each procedure at the early stage, returning the released qualified old tire body to the tire body track along with the rail car, and then conveying the old tire body to the forming machine to align with the center of the manipulator.

The cured part can be cured as shown in example 1 using the toroidal band of figure 7; fig. 8 is directed to a tire in which two side edges of the annular carcass respectively extend outward to form side flaps, annular grooves corresponding to the annular tread are formed inside the side flaps, and the cushion rubber is located at the bottom of the grooves.

The annular tightening body 35 shown in fig. 8 is a ring-shaped member having an opening, which is U-shaped in cross section, and the opening is engaged and locked by a coupling device 34 such as a locking buckle, and the U-shaped bottom of the annular tightening body is locked by the coupling device 34 to form a ring-shaped structure in which an inner surface curved surface is directly abutted against an outer surface curved surface of the tire crown and the tire body side wing, and a gap between the side wing and the tread is sealed, thereby sealing the cushion rubber. The pressure, temperature and time rule of the vulcanizing process are set through the vulcanizing tank to carry out vulcanization.

Claims

1. A combined forming and vulcanizing production line of a new process tire is characterized by comprising a tire body processing unit, a tread processing unit, a forming unit and a vulcanizing unit, wherein the tire body processing unit and the tread processing unit respectively comprise a circulating track system, a transfer device and a railcar, the respective circulating track systems are connected with an annular tread rubber combined forming machine of the forming unit, and the transfer devices are arranged beside tracks of the respective circulating track systems;

2. The production line of claim 1, wherein the carcass processing unit comprises a tumble pulper and a flash drying apparatus.

3. The production line of claim 1 wherein said buffing station is provided with a carcass buffing machine, and said transfer mechanism between the carcass buffing machine and the track is a dual arm robot, the dual arms of which are cyclically transferred between the carcass buffing machine and the carcass rail car, respectively.

4. The production line of claim 1, wherein the tread handling unit comprises a cement flash tumbler dryer station.

5. The production line of claim 1, wherein the annular clamping body is U-shaped in cross section, and is a ring component with an opening, or a ring component without an opening but with a tensioning device, or a plurality of ring components combined with each other, the opening, the plurality of ring components combined with each other are spliced and locked by a coupling device, the bottom surface of the U-shaped is corresponding to the running surface of the tread, the two sides of the U-shaped are corresponding to the side surfaces of the tread and the carcass, the curved surface of the inner surface of the U-shaped of the annular clamping body is directly or indirectly attached to the curved surfaces of the tire crown and the carcass, and the cushion gum is directly or indirectly sealed.

6. The production line of claim 5, wherein the indirect manner includes that the annular tightening body is indirectly sealed and attached to the tire crown and the tire body through sealing rubber rings or air bags, the sealing rubber rings or the air bags are at least arranged between two ends of the U-shaped bottom surface of the annular tightening body and the tire tread rubber and between two side surfaces of the annular tightening body and the side surfaces of the tire tread and the tire body, the annular tightening body is provided with air charging and discharging ports on the annular surface, the sealing rubber rings or the air bags on the two side surfaces can be respectively provided with independent sealing air chambers, and one air chamber air charging and discharging port is arranged on each side.

7. The production line of claim 6, wherein the tire curing track system includes a circulating track for circulating the envelope-less curing press along the track, the sealant ring or bladder having a heating device.

8. The production line of claim 1, wherein the annular tread rubber combination forming machine is a double expansion drum structure, and is rotated and positioned by 180 ° through a rotating mechanism, the carcass receiving side of the annular tread rubber combination forming machine comprises a carcass preheating mechanism and a cushion rubber extruder, the tread receiving side of the annular tread rubber combination forming machine comprises a tread expanding mechanism, and the carcass loaded with the cushion rubber layer is rotated to the tread expanding mechanism side through the rotating mechanism, and the sheathing of the tread and the carcass is realized.

9. The production line of claim 1, wherein a steel ring stacking type track system is arranged between the steel ring installation station and the steel ring disassembly station.

10. The production line of claim 1, wherein the tire curing track system is a tire accumulating and releasing curing track system and the non-envelope curing machine is a hanging non-envelope curing machine comprising an electric bow for receiving electric power from an electric grid arranged on the track and an automatically controlled heating system.