CN104943209A - Tire molding drum - Google Patents
Tire molding drum Download PDFInfo
- Publication number
- CN104943209A CN104943209A CN201410113190.8A CN201410113190A CN104943209A CN 104943209 A CN104943209 A CN 104943209A CN 201410113190 A CN201410113190 A CN 201410113190A CN 104943209 A CN104943209 A CN 104943209A
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- counter
- wrapping rod
- flexible covers
- tire
- reversely
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Abstract
The invention provides a tire molding drum, aiming at solving the tire quality problems in the prior art that a side wall of a reversely-covered tire has too deep indentation and rubber on the side wall part is uneven after inflation. The tire molding drum comprises a main shaft, a locking block assembly and a reversely covering device, wherein the reversely covering device comprises a plurality of reversely covering rods; a reversely covering rolling wheel is arranged at the front end of each reversely covering rod; the same barrel-shaped flexible covering object sleeves the locking block assembly and the plurality of reversely covering rods of the reversely covering device on the corresponding side; the front end of the flexible covering object is fastened on the locking block assembly, and the rear end of the flexible covering object is connected onto the reversely covering device; and when the reversely covering device is reversely covered in place, the front part of the flexible covering object is completely fitted on the side wall of the tire. The flexible covering object is arranged, so that the rubber on the side wall can be prevented from being directly extruded by the reversely covering rolling wheels; and the extruding pressure of the rolling wheels is buffered, so that the extruding force on the side wall by the reversely covering rolling wheels is reduced, the indentation on the reversely-covered side wall of the tire is alleviated, and the quality of the tire is improved.
Description
Technical field
The invention belongs to rubber manufacturing machinery technical field, the structure be specifically related to for the tire assembly drum of tire anti-package operation is improved.
Background technology
In rubber tyre manufacture process, the assembly drum on tyre building machine is mainly used in the anti-package of tire sidewall glue.
In prior art, assembly drum generally comprise a hollow columnar, be provided with the left and right main shaft revolving roller screw therein, main shaft excircle is arranged with lock dog assembly and anti-package device, when lock dog assembly is used for anti-package, Tyre-locking is located, anti-package device is used for carrying out anti-package to sidewall rubber, lock dog assembly and anti-package device are two covers simultaneously, are symmetrical arranged, to lock and anti-package sidewall, tire two sides with main shaft vertical center line.Wherein, lock dog assembly comprises lock dog cylinder body, many group connecting rods and many group carcass lock dogs, and anti-package device comprises cylinder slide cover, cylinder block, and along multiple counter-wrapping rods that main shaft excircle is evenly arranged, counter-wrapping rod front end is provided with anti-package roller, and rear end and cylinder slide overlap hinged.During anti-package, when completing laminating and the wire loop location of carcass ply, roller screw is revolved by left and right in drive shaft, lock dog assembly and anti-package device are moved to the alignment of shafts, now, anti-package rolling operation is carried out to drive the anti-package roller of counter-wrapping rod front end from sidewall to crown by passing into air in the cylinder block to anti-package device.
To fit as much as possible anti-package for making sidewall rubber, position, anti-package pair of rollers sidewall has certain pressure, and there is gap during adjacent counter-wrapping rod anti-package, then after anti-package there is impression in sidewall, after tyre vulcanization fills high pressure, there will be the rugged phenomenon in position, sidewall (being commonly called as " red sun "), have a strong impact on tire quality.
For solving the problem of anti-package roller impression, application number be 97182206.9 patent discloses a kind of double bar assembly drum, by the priority action of length counter-wrapping rod, the roller on quarter butt make up the roll extrusion of stock upper roller less than place, reach the effect improving sidewall impression thus.It has following shortcoming and defect: if 1, the anti-package of short counter-wrapping rod advocates to be realized by the adhesive tape on counter-wrapping rod, but adhesive tape power is too little, works hardly to sidewall sizing material; 2, the action of length counter-wrapping rod has successively, and when after long counter-wrapping rod anti-package, sizing material basic extruding in sidewall is formed, quarter butt now again action substantially do not play effect; 3, cost is higher;
Another kind of solution is: the quantity changing counter-wrapping rod, increases the area that counter-wrapping rod roller presses through, or changes the structure of counter-wrapping rod upper roller, as single roller, two roller, many rollers etc.; It has following shortcoming and defect: 1, the quantity of counter-wrapping rod can not unconfinedly increase; 2, increasing counter-wrapping rod quantity causes assembly drum equipment cost to increase; 3, no matter how counter-wrapping rod quantity increases, and does not all reach the effect of complete seamless impression; 4, the version changing roller can cause the unstability of assembly drum; 5, roller can not unconfinedly increase, and does not reach the effect of complete seamless pressing equally.
Summary of the invention
The invention provides a kind of tire assembly drum, after can solving prior art tire anti-package there is impression in sidewall, and impression is excessively dark, occurs sizing material rugged tire quality problem in position, sidewall after inflation.
Above-mentioned technical purpose is solved for reaching, the present invention is achieved by the following technical solutions: a kind of tire assembly drum, the lock dog assembly comprising main shaft and be arranged on main shaft and anti-package device, described lock dog assembly comprises locking cylinder body, described anti-package device comprises the multiple counter-wrapping rods evenly arranged along main shaft excircle, described counter-wrapping rod front end is provided with anti-package roller, described lock dog assembly and its respective side anti-package device are arranged with the flexible covers of same tubular, the front end of described flexible covers at least covers counter-wrapping rod roller, rear end is connected on described anti-package device, when described anti-package device anti-package puts in place, the forward part of described flexible covers is fitted on tire sidewall completely.
The front end of described flexible covers is fastened on described lock dog assembly.
The rear end of described flexible covers is connected on the counter-wrapping rod of described anti-package device, described counter-wrapping rod is interval with the roller for contacting with described flexible covers.
The rear end of described flexible covers is connected on anti-package device by an elasticity recovery part.
One of them described counter-wrapping rod is provided with slide mechanism, described slide mechanism comprises the slideway extended along described counter-wrapping rod length direction, the slide unit be slidably matched with it is provided with in described slideway, described slide unit one end is connected to described counter-wrapping rod by an elasticity recovery part, and the other end is connected to the rear end of described flexible covers.
The rear end indentation of described flexible covers.
The front end screw fastening of described flexible covers or stage clip are pressed on the locking cylinder body of described lock dog assembly.
The material of described flexible covers is rubber or silica gel or polyurethane.
Described elasticity recovery part is spring or adhesive tape.
Compared with prior art, advantage of the present invention and good effect are: by arranging flexible covers, the counter-wrapping rod of anti-package device prop up carry out anti-package time, counter-wrapping rod roller is first contacted with flexible covers, because flexible covers itself has elasticity, counter-wrapping rod roller flexible covers forward part can be propped up and with counter-wrapping rod roller anti-package extruding be fitted on the sizing material of sidewall, then avoid the direct extruding of counter-wrapping rod pair of rollers sidewall sizing material, the extruding force of counter-wrapping rod roller is served to the effect of buffering, reduce the extruding force of counter-wrapping rod roller for sidewall rubber material, simultaneously, due to the natural resiliency effect of flexible covers, can expand, the counter-wrapping rod roller extruding force acted on the sizing material of sidewall is served to the effect of dispersion, further reduction counter-wrapping rod roller is for the extruding force of sidewall rubber material, thus the impression that after significantly reducing tire anti-package, sidewall exists, improve tire quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of tire assembly drum most preferred embodiment of the present invention;
Fig. 2 is the structural representation of flexible covers in preferred embodiment.
In figure: 1, main shaft; 2, lock dog assembly; 2.1, cylinder body is locked; 3, anti-package device; 3.1, counter-wrapping rod; 3.2, counter-wrapping rod roller; 3.3, slideway; 3.4, slide unit; 3.5, elasticity recovery part; 3.6, roller; 4, flexible covers.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
With reference to Fig. 1, the present embodiment tire assembly drum, be arranged on tyre building machine, for the anti-package of tire sidewall glue, same prior art, its primary structure comprises main shaft 1 and the lock dog assembly 2 be arranged on main shaft 1 and anti-package device 3, and lock dog assembly 2 and anti-package device 3 are set on main shaft 1, two covers are respectively set, are all symmetrical arranged with the vertical center line of main shaft 1; Lock dog assembly 2 comprises locking cylinder body 2.1 and appurtenances thereof, for the locking of tire during anti-package, anti-package device 3 is for carrying out anti-package action, it is finger-like structure, comprise counter-wrapping rod 3.1 and other anti-package appurtenances of the multiple finger-types evenly arranged along main shaft 1 excircle, counter-wrapping rod front end is provided with counter-wrapping rod roller 3.2.For realizing the object alleviating sidewall impression phenomenon after anti-package, multiple counter-wrapping rods 3.1 of the lock dog assembly 2 of main shaft 1 vertical center line both sides and the anti-package device 3 of corresponding the same side thereof are arranged with the flexible covers 4 of same tubular, the front end of flexible covers 4 is by the fastening setting of lock dog assembly 2, its rear end is connected on anti-package device 3, when anti-package device 3 anti-package tyre stock puts in place, the forward part of flexible covers 4 is fitted on tire sidewall completely.
It should be noted that, the forward and backward noun of locality described in the present embodiment be with the vertical center line of main shaft 1 be define justice, towards main shaft 1 vertical center line be front, away from main shaft 1 vertical center line be after, for seeing the structure of the present embodiment tire assembly drum clearly, the right side structure of only getting the vertical center line of main shaft 1 in Fig. 1 illustrates, and the top of main shaft 1 be counter-wrapping rod 3.1 shrink return state signal, bottom be counter-wrapping rod 3.1 anti-package put in place state signal.
Concrete, flexible covers 4 can be rubber, silica gel or polyurethane material, thus makes it have certain elasticity, can prop up with the anti-package action of counter-wrapping rod 3.1 and cover on sidewall under the extruding force of counter-wrapping rod roller 3.2.When multiple counter-wrapping rod 3.1 advance forward and counter-wrapping rod roller 3.2 place end upwards promote carry out the action of sizing material anti-package time, because flexible covers 4 is set in the periphery of anti-package device 3, and front end is fastening, advancing then along with counter-wrapping rod 3.1, flexible covers 4 is softened gradually, and cover the sizing material of sidewall along with counter-wrapping rod roller 3.2 is fitted from the center of circle, sidewall to the anti-package roll extrusion of crown direction, thus make counter-wrapping rod roller 3.2 directly not extrude sidewall sizing material, but serve cushioning effect by flexible flexible covers 4, reduce the extruding force of counter-wrapping rod roller 3.2 for sidewall sizing material, simultaneously, the natural resiliency of flexible covers 4, it is made to expand, counter-wrapping rod roller 3.2 extruding force acted on the sizing material of sidewall is served to the effect of dispersion, further reduction counter-wrapping rod roller 3.2 is for the extruding force of sidewall sizing material, thus the impression that after significantly reducing tire anti-package, sidewall exists, improve tire quality.
In the present embodiment, the rear end of flexible covers 4 is connected on counter-wrapping rod 3.1, outside the rear section that can be connected to counter-wrapping rod 3.1 or walk around, the rear end of counter-wrapping rod 3.1 is connected on the inner side of counter-wrapping rod 3.1, after only need ensureing that anti-package puts in place, flexible covers 4 can have enough covering tire sidewalls; In the present embodiment, on outside the rear section that the rear end of flexible covers 4 is connected to counter-wrapping rod 3.1, to simplify mounting structure, easy disassembly; Simultaneously, for reducing the contact friction force between flexible covers 4 and counter-wrapping rod 3.1, flexible covers 4 is propped up smoothly, counter-wrapping rod 3.1 is interval with roller 3.6, contacted with flexible covers 4 by roller 3.6, reduce contact area, and then reduce both between frictional force, to reduce the impact on the action of counter-wrapping rod 3.1 anti-package possibly.
After anti-package, flexible covers 4 must depart from tire, so that tire carries out next step operation, the disengaging of flexible covers 4 can be carried out by hand or adopt other aids to carry out, but this mode is carried out after needing counter-wrapping rod 3.1 to return, efficiency is low, and there is potential safety hazard.The synchronization action departing from tire with flexible covers 4 is return for realizing counter-wrapping rod 3.1 contraction, do not affect assembly drum operating efficiency, and do not need operating personnel to participate in by hand, reduce potential safety hazard, in the present embodiment, at least one counter-wrapping rod 3.1 is provided with slide mechanism wherein, this slide mechanism comprises the slideway 3.3 extended along counter-wrapping rod 3.1 length direction, the slide unit 3.4 be slidably matched with it is provided with in slideway 3.3, slide unit 3.4 one end is connected on counter-wrapping rod 3.1 by an elasticity recovery part 3.5, the other end of slide unit 3.4 is connected to the rear end of flexible covers 4, as shown in fig. 1.
Then when counter-wrapping rod 3.1 carries out anti-package action, slide unit 3.4 can move to extreme direction before counter-wrapping rod 3.1 under the pulling force of flexible covers 4, reduce the amount of tension of flexible covers 4, simultaneously elasticity recovery part 3.5 is followed slide unit 3.4 and is moved to extreme direction before counter-wrapping rod 3.1, the amount of tension of elasticity recovery part 3.5 is strengthened, when anti-package puts in place, the amount of tension of elasticity recovery body 3.5 is maximum, when counter-wrapping rod 3.1 is back to contraction state gradually, due to the recovery stretch power of elasticity recovery body 3.5, state before pulling slide unit 3.4 to be returned to counter-wrapping rod 3.1 anti-package tyre stock, slide unit 3.4 and then pull flexible covers 4 to be returned to this state, flexible covers 4 is made to depart from tire sidewall, then an anti-package actuation cycle of tire completes.By adopting this slide mechanism, the action making flexible covers 4 depart from tire sidewall and the contraction of counter-wrapping rod 3.1 are return and are synchronously carried out, then arrange while flexible covers 4 realizes alleviating the effect of roller impression, can not affect the operating efficiency of assembly drum.
Certainly, be advisable all to arrange above-mentioned slide mechanism outside the rear section of each counter-wrapping rod 3.1 in the present embodiment, balancedly to apply pulling force to the rear end of flexible covers 4, when making counter-wrapping rod 3.1 shrink the state before being retracted into anti-package tyre stock, flexible covers 4 can be set on multiple counter-wrapping rod 3.1 and lock dog assembly 2 regularly again, in order to avoid when again carrying out anti-package action flexible covers 4 irregularity and make it be fitted on tire sidewall time produce the phenomenon such as fold, and have impact on anti-package quality.Simultaneously, slideway 3.3 in slide mechanism can be formed by installing on counter-wrapping rod 3.1 line slideway or directly mold slideway structure when shaping counter-wrapping rod 3.1, slide unit 3.4 can be slide block or linear pulley etc., can relative sliding as long as realize, elasticity recovery body 3.5 can have certain elasticity, can be spring or adhesive tape etc., the concrete form of the present embodiment to slide mechanism and elasticity recovery body 3.5 limit.
In addition, the front end of the flexible covers 4 fastening mode that screw fastening or stage clip can be adopted to compress on lock dog assembly 2 realizes, in the present embodiment, for ensureing its fastening stability, its by screw fastening on the locking cylinder body 2.1 of lock dog assembly 2.
With reference to Fig. 2, due at counter-wrapping rod 3.1 in turn-up process, front end more upwards promotes, the tightening force of flexible covers 4 pairs of counter-wrapping rods 3.1 is larger, more can affect the advance of counter-wrapping rod 3.1, for improving this situation, in the present embodiment, the rear end of flexible covers 4 is set to zigzag, namely this end indentation of slide unit 3.4 is connected, namely the frictional force between this end of flexible covers 4 and counter-wrapping rod 3.1 is reduced, reduce its tightening force to counter-wrapping rod 3.1 simultaneously, make the anti-package action of counter-wrapping rod 3.1 more easily realize further; In addition, the circular hole on the sawtooth of the rear end of flexible covers 4 shown in Fig. 2 is for being connected with the outside of multiple counter-wrapping rod 3.1 connecting hole arranged.
Because the anti-package extruding of thickness on counter-wrapping rod roller 3.2 of flexible covers 4 has direct impact, if the thickness of flexible covers 4 is larger, then its cushioning effect played is comparatively large, can affect the extruding force of counter-wrapping rod roller 3.2 pairs of sidewall sizing materials largely, thus affect anti-package quality; If the thickness of flexible covers 4 is less, then cushioning effect is less, does not reach the effect of desirable improvement impression.In the present embodiment, the thickness of flexible covers 4 is determined according to situations such as concrete operating mode, concrete tyre kinds.
Above embodiment only in order to technical scheme of the present invention to be described, but not is limited; Although with reference to previous embodiment to invention has been detailed description, for the person of ordinary skill of the art, still can modify to the technical scheme described in previous embodiment, or equivalent replacement is carried out to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the present invention's technical scheme required for protection.
Claims (9)
1. a tire assembly drum, the lock dog assembly comprising main shaft and be arranged on main shaft and anti-package device, described anti-package device comprises the multiple counter-wrapping rods evenly arranged along main shaft excircle, described counter-wrapping rod front end is provided with counter-wrapping rod roller, it is characterized in that: the flexible covers described lock dog assembly and its respective side anti-package device being arranged with same tubular, the front end of described flexible covers at least covers counter-wrapping rod roller, rear end is connected on described anti-package device, when described anti-package device anti-package puts in place, the forward part of described flexible covers is fitted on tire sidewall completely.
2. tire assembly drum according to claim 1, is characterized in that: the front end of described flexible covers is fastened on described lock dog assembly.
3. tire assembly drum according to claim 1, is characterized in that: the rear end of described flexible covers is connected on the counter-wrapping rod of described anti-package device, described counter-wrapping rod is interval with the roller for contacting with described flexible covers.
4. tire assembly drum according to claim 1, is characterized in that: the rear end of described flexible covers is connected on anti-package device by an elasticity recovery part.
5. tire assembly drum according to claim 4, it is characterized in that: one of them described counter-wrapping rod is provided with slide mechanism, described slide mechanism comprises the slideway extended along described counter-wrapping rod length direction, the slide unit be slidably matched with it is provided with in described slideway, described slide unit one end is connected to described counter-wrapping rod by an elasticity recovery part, and the other end is connected to the rear end of described flexible covers.
6. tire assembly drum according to claim 1, is characterized in that: the front end screw fastening of described flexible covers or stage clip are pressed on the locking cylinder body of described lock dog assembly.
7. tire assembly drum according to claim 1, is characterized in that: the rear end indentation of described flexible covers.
8. tire assembly drum according to any one of claim 1 to 5, is characterized in that: the material of described flexible covers is rubber or silica gel or polyurethane.
9. tire assembly drum according to any one of claim 1 to 5, is characterized in that: described elasticity recovery part is spring or adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410113190.8A CN104943209B (en) | 2014-03-25 | 2014-03-25 | Tire assembly drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410113190.8A CN104943209B (en) | 2014-03-25 | 2014-03-25 | Tire assembly drum |
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| Publication Number | Publication Date |
|---|---|
| CN104943209A true CN104943209A (en) | 2015-09-30 |
| CN104943209B CN104943209B (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410113190.8A Active CN104943209B (en) | 2014-03-25 | 2014-03-25 | Tire assembly drum |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4427473A (en) * | 1979-02-22 | 1984-01-24 | Nrm Corporation | Belt folding machine and method |
| CN1418149A (en) * | 2000-03-17 | 2003-05-14 | Vmi荷兰埃珀公司 | Tyre building drum provided with turn up device |
| CN101808813A (en) * | 2007-10-25 | 2010-08-18 | 不二精工株式会社 | Device for folding body ply |
| US20130192764A1 (en) * | 2011-12-22 | 2013-08-01 | George Michael Stoila | Tire ply applier |
| CN203792734U (en) * | 2014-03-25 | 2014-08-27 | 青岛软控机电工程有限公司 | Tire molding drum |
-
2014
- 2014-03-25 CN CN201410113190.8A patent/CN104943209B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4427473A (en) * | 1979-02-22 | 1984-01-24 | Nrm Corporation | Belt folding machine and method |
| CN1418149A (en) * | 2000-03-17 | 2003-05-14 | Vmi荷兰埃珀公司 | Tyre building drum provided with turn up device |
| CN101808813A (en) * | 2007-10-25 | 2010-08-18 | 不二精工株式会社 | Device for folding body ply |
| US20130192764A1 (en) * | 2011-12-22 | 2013-08-01 | George Michael Stoila | Tire ply applier |
| CN203792734U (en) * | 2014-03-25 | 2014-08-27 | 青岛软控机电工程有限公司 | Tire molding drum |
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| Publication number | Publication date |
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| CN104943209B (en) | 2017-10-10 |
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