CN103240900A - Manufacturing method of tyre part - Google Patents
Manufacturing method of tyre part Download PDFInfo
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- CN103240900A CN103240900A CN2012105806941A CN201210580694A CN103240900A CN 103240900 A CN103240900 A CN 103240900A CN 2012105806941 A CN2012105806941 A CN 2012105806941A CN 201210580694 A CN201210580694 A CN 201210580694A CN 103240900 A CN103240900 A CN 103240900A
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- tyre element
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Abstract
The invention provides a manufacturing method of tyre parts, which can prevent through holes temporarily punctured by a puncturing device from being blocked again, discharge air completely, and manufacture tyres with stable performance. The manufacturing method of tyre parts comprises a puncturing procedure for temporarily puncturing through holes on a sheet tyre part by a puncturing device, and a cooling procedure for cooling the punctured tyre part by a cooling device disposed right behind the puncturing device. According to the manufacturing method of tyre parts, the cooling device is a roller internally filled with circulating cooling media. The manufacturing method of tyre parts controls the through rate of the tyre part to be a specified value by controlling the temperature of the cooling media. The manufacturing method of tyre parts comprises a conveying procedure for conveying the tyre part by using a belt conveyor at the downstream side of the cooling procedure, wherein the belt conveyor is made of a material with higher thermal conductivity than that of the tyre part.
Description
Technical field
The manufacture method of the tyre element of the gas residue when the present invention relates to suppress to vulcanize.
Background technology
In the manufacturing process of tire, carry out the stickup that liner, carcass cord, belt cord etc. are configured as the various tyre elements (member) of sheet, yet when pasting, thereby gas enters generation gas residue between each tyre element sometimes.
If after sulfuration, also have this gas residue, then become the reason of the quality of damaging finished tires such as uniformity, so will carry out the gas that enters between each tyre element is emitted to the outside when vulcanizing.Particularly, in the manufacturing of (also being called " rubberized fabric (preparation) ") of such sheet tyre element, use sting device shown in Figure 2, utilize spring or cylinder that pricker is moved up and down, the through hole (for example, patent documentation 1) of specific size is set.Thus, paste the gas that enters constantly between each tyre element, emit to the outside along this through hole, so suppressed the gas residue after the sulfuration.
Patent documentation 1: TOHKEMY 2008-162028 communique
Yet, sting device in the present situation especially is subjected to the influence of environment temperature and has following problem: because under the situation of the rubber surface temperature height of tyre element (more than 30 degree), rubber is mobile high, so by the temporary transient through hole that arranges of sting device again by shutoff, thereby the gas that enters between each tyre element can't fully be emitted.
Summary of the invention
For this reason, the present invention in view of the above problems, its problem is, a kind of manufacture method of tyre element is provided, the through hole that can suppress to be arranged by sting device is temporarily by shutoff again, thereby can fully emit gas, can the stable tire of manufacturing property.
The inventor has carried out research with keen determination in order to solve above-mentioned problem, and it found that the invention by the following stated can solve above-mentioned problem, until having finished the present invention.
The invention that technical scheme 1 is put down in writing is the manufacture method of tyre element, it is characterized in that, possesses following operation: the puncture operation, and use sting device that the tyre element of sheet is arranged through hole; Refrigerating work procedure uses the cooling device at the tight rear be arranged on sting device to cool off above-mentioned tyre element after being punctured.
The invention that technical scheme 2 is put down in writing, in the manufacture method of the tyre element that technical scheme 1 is put down in writing, above-mentioned cooling device is the roller that inside is filled with the cooling medium of circulation.
The invention that technical scheme 3 is put down in writing, in the manufacture method of the tyre element that technical scheme 2 is put down in writing, by controlling the temperature of above-mentioned cooling medium, the perforation rate of the above-mentioned tyre element that will represent with following formula is controlled to be the value of regulation,
Perforation rate={ (number of cooled through hole)/(number of puncture) } * 100%.
The invention that technical scheme 4 is put down in writing, in technical scheme 1～technical scheme 3 in the manufacture method of each described tyre element, possesses the conveying operation, downstream at above-mentioned refrigerating work procedure, utilize ribbon conveyer to carry above-mentioned tyre element, above-mentioned ribbon conveyer is formed by the thermal conductivity material higher than the thermal conductivity of above-mentioned tyre element.
According to the present invention, can provide inhibition by the temporary transient through hole that arranges of sting device by shutoff again, can fully emit gas, thus the manufacture method of the tyre element of can manufacturing property stable tire.
Description of drawings
Fig. 1 is the approximate three-dimensional map of major part of the manufacturing installation of the employed tyre element of an embodiment of the invention.
Fig. 2 is the figure of an example of expression sting device.
Description of reference numerals: 1 ... sting device; 3 ... cooling device; 3a ... roller; G ... the tyre element of sheet.
The specific embodiment
Below, the present invention will be described based on embodiment with reference to accompanying drawing.
Fig. 1 is the approximate three-dimensional map of major part of the manufacturing installation of the employed tyre element of present embodiment.As shown in Figure 1, the tyre element G of the sheet that size according to the rules is shaped, be transferred along the direction shown in the arrow, offered at sting device 1 after the through hole of (puncture operation) venting usefulness, in the cooling device 3 at the tight rear that is arranged at sting device 1, be cooled (refrigerating work procedure).
Yet the thickness of the rubberized fabric that punctures (yardstick) is because of each rubberized fabric difference.Therefore, the state of cooling of the rubberized fabric after the puncture can produce difference, might make the through hole that forms by puncture again by shutoff.
That is, under the situation of the thin rubberized fabric of yardstick, owing to the rubberized fabric after being punctured cools off at short notice, so kept through hole.And under the situation of the thick rubberized fabric of yardstick, the cooling of rubberized fabric expends time in, and can't reduce the flowability of rubber as early as possible, so the temporary transient through hole that forms can be again by shutoff.
In addition, the maintenance of this through hole also is subjected to the influence of environment temperature, and under the big situation of the difference of the temperature of the rubberized fabric after the puncture and environment temperature, through hole is to be maintained at high proportion.Particularly, the aestival aspect ratio high with temperature, the winter that temperature is low more can be to keep through hole at high proportion.
Be punctured through hole that device wears again by the index of the degree of shutoff as judgement, can utilize the perforation rate.This perforation rate, the number that punctures according to the rubberized fabric that to length is 300mm, with the cooling back also the ratio of the number of residual through hole (%) define, particularly represent with following formula.
Perforation rate={ (number of cooled through hole)/(puncture number) } * 100%
This perforation rate is preferably 45～90%.If the perforation rate is less than 45%, then utilize the most of by shutoff of through hole that sting device temporarily offers, so the effect of exitting fully might can't be obtained.On the other hand, if greater than 90%, then might cause the bad order of finished tire.
Therefore, in the present embodiment, at the tight rear of sting device 1 cooling device 3 is set, the rubberized fabric after being punctured is cooled off fast, the flowability of rubber is descended, suppress the temporary transient through hole that forms thus by shutoff again.
In addition, by cooling device being set for the chilling temperature of regulation, thereby be not subjected to the influence of environment temperature, can make the tyre element of the perforation rate of expection.
Wherein, above-mentioned " the tight rear of sting device " is not limited to sting device 1 contacts configuration with cooling device 3 situation, and particularly, preferably being disposed at apart from sting device 1 is in the 70cm, is preferably in the 30cm.
As such cooling device, preferred two rollers 3 that cylinder 3a constitutes up and down that possessed the cooling medium of circulation by inside that use.Tyre element G is being passed through between two cylinder 3a up and down, from the surface and two sides, the back side cool off tyre element G, thereby can effectively cool off.
And, owing to make cooling medium in the inner loop of each cylinder, thus different with the situation that cooling medium is directly contacted with tyre element G, the variation that can not produce the rubber rerum natura of tyre element G.As cooling medium, do not make particular determination, can make gases such as liquid such as water or nitrogen, but calm temperature easy to control and cost aspect consider, be preferably water.And the temperature by the control cooling medium can fully reduce the flowability of the rubber of the tyre element G after being punctured, and is not subjected to the influence of environment temperature and gives the perforation rate of tyre element G expection.
The tyre element G that the device 3 that is cooled cools off, be transported to by not shown ribbon conveyer after the cut-out operation in downstream, be cut to the length of regulation, but this ribbon conveyer by the material with high thermal conductivity, situation about particularly being formed by the high material of the thermal conductivity of thermal conductivity ratio elastomeric material under, the heat of cooling of self-cooling set 3 is delivered to ribbon conveyer in the future, so can keep the cooling effect to tyre element G for a long time, therefore more preferred.
Embodiment
Next, the present invention carries out more specific description based on embodiment.Below, the two kind sheet tyre elements different to dimensional thickness, the variation of measuring the perforation rate that causes based on having or not refrigerating work procedure.
Under summer environment temperature (30 ℃) and winter environment temperature (10 ℃), make the sheet tyre element (width is about 1445mm) of two kinds of dimensional thickness (0.8mm and 1.1mm), to each sheet tyre element, perforation rate with every 300mm length becomes 60～85% mode, punctures under 90 ℃ temperature conditions.
Utilization is configured in the roller apart from the position of sting device 100mm, and the part of each sheet tyre element is cooled off.Wherein, this roller circulates water in inside as cooling medium, and so that surface temperature is in the mode between puncture temperature and the environment temperature, is set at 10 ℃, winter summer and is set at 25 ℃.
With the sheet tyre element that cools off as a comparative example, the sheet tyre element that will cool off is measured the perforation rate under each situation as embodiment.
Particularly, at first, from cooled each sheet tyre element sampling 300mm, each sheet tyre element of taking a sample is placed the dark place, shine light such as fluorescent lamp from its below or top, with the naked eye confirm the perforation of light, obtain the number A in the hole that is connected.
Next, with the naked eye the hole trace of residual puncture in each sheet tyre element of sampling is counted, will the number corresponding with A be made as the number B of puncture.
Afterwards, utilize the above-mentioned formula of perforation rate, namely of finding the solution
Perforation rate (%)=(A/B) * 100%
Obtain the perforation rate under each situation.
Measurement result is shown in table 1.
Table 1
As can be seen from Table 1, do not arrange under the situation of refrigerating work procedure, if dimensional thickness is big, then perforation rate is than embodiment low (comparative example 1,3), if the little then perforation rate of dimensional thickness is than embodiment height (comparative example 2,4).
In addition as can be seen, in high perforation in the summer rate of environment temperature low (comparative example 1,2), and low perforation in the winter rate height (comparative example 3,4) of environment temperature.Especially under the thick situation (comparative example 1) of environment temperature height and size, be 35% low perforation rate, can't obtain the effect of exitting fully, gas residue in a large number that finished tire is residual.In addition, under and the situation (comparative example 4) that size is thin low in environment temperature, be 92% height perforation rate, finished tire residual gas hardly is residual, but produces bad order.
With respect to this, under the situation of the embodiment that refrigerating work procedure is set, irrelevant with difference and the dimensional thickness of environment temperature (summer, winter) as can be seen, the perforation rate all can be controlled 70%.
Like this, why with environment temperature, dimensional thickness is irrelevant and obtained the perforation rate of expection, is because puncture under the puncture temperature of regulation, and suitably control chilling temperature and cool off.
In addition, can expect under the situation of thin thickness that the perforation rate of comparative example is than the perforation rate height of embodiment, bring because the surface temperature of chill roll is set between puncture temperature and the environment temperature.
More than, describe the present invention based on embodiment, but the invention is not restricted to above-mentioned embodiment.In the scope identical and impartial with the present invention, can apply various changes to above-mentioned embodiment.
Claims (4)
1. the manufacture method of a tyre element is characterized in that, possesses following operation:
The puncture operation uses sting device that the tyre element of sheet is worn through hole; With
Refrigerating work procedure uses the cooling device at the tight rear that is arranged on sting device, and the above-mentioned tyre element after being punctured is cooled off.
2. the manufacture method of tyre element according to claim 1 is characterized in that,
Above-mentioned cooling device is the roller that inside is filled with the cooling medium of circulation.
3. the manufacture method of tyre element according to claim 2 is characterized in that,
By controlling the temperature of above-mentioned cooling medium, the perforation rate of the above-mentioned tyre element that will represent with following formula is controlled to be the value of regulation,
Perforation rate={ (number of cooled through hole)/(number of puncture) } * 100%.
4. according to the manufacture method of each described tyre element in the claim 1～3, it is characterized in that,
Possess the conveying operation, in the downstream of above-mentioned refrigerating work procedure, utilize ribbon conveyer to carry above-mentioned tyre element,
Above-mentioned ribbon conveyer is formed by the thermal conductivity material higher than the thermal conductivity of above-mentioned tyre element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-027441 | 2012-02-10 | ||
| JP2012027441A JP5469186B2 (en) | 2012-02-10 | 2012-02-10 | Manufacturing method of tire member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103240900A true CN103240900A (en) | 2013-08-14 |
| CN103240900B CN103240900B (en) | 2016-06-01 |
Family
ID=48920931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210580694.1A Expired - Fee Related CN103240900B (en) | 2012-02-10 | 2012-12-27 | The manufacture method of tyre element |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5469186B2 (en) |
| CN (1) | CN103240900B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000301626A (en) * | 1999-04-23 | 2000-10-31 | Sumitomo Rubber Ind Ltd | Conveying and perforating device |
| JP2000301625A (en) * | 1999-04-23 | 2000-10-31 | Sumitomo Rubber Ind Ltd | Feeding/perforating device for strip component |
| CN1799825A (en) * | 2005-01-07 | 2006-07-12 | 韩国轮胎株式会社 | Puncture device on tyre surface |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006205636A (en) * | 2005-01-31 | 2006-08-10 | Yokohama Rubber Co Ltd:The | Take-up apparatus of unvulcanized rubber sheet material |
| JP2006218758A (en) * | 2005-02-10 | 2006-08-24 | Sumitomo Rubber Ind Ltd | Method for producing rubber member for tire |
| JP2009018508A (en) * | 2007-07-12 | 2009-01-29 | Yokohama Rubber Co Ltd:The | Apparatus of manufacturing unvulcanized rubber member |
-
2012
- 2012-02-10 JP JP2012027441A patent/JP5469186B2/en not_active Expired - Fee Related
- 2012-12-27 CN CN201210580694.1A patent/CN103240900B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000301626A (en) * | 1999-04-23 | 2000-10-31 | Sumitomo Rubber Ind Ltd | Conveying and perforating device |
| JP2000301625A (en) * | 1999-04-23 | 2000-10-31 | Sumitomo Rubber Ind Ltd | Feeding/perforating device for strip component |
| CN1799825A (en) * | 2005-01-07 | 2006-07-12 | 韩国轮胎株式会社 | Puncture device on tyre surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103240900B (en) | 2016-06-01 |
| JP2013163313A (en) | 2013-08-22 |
| JP5469186B2 (en) | 2014-04-09 |
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Granted publication date: 20160601 Termination date: 20191227 |