CN103817961A - Tire bead automatic assembly device - Google Patents
Tire bead automatic assembly device Download PDFInfo
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- CN103817961A CN103817961A CN201310542267.9A CN201310542267A CN103817961A CN 103817961 A CN103817961 A CN 103817961A CN 201310542267 A CN201310542267 A CN 201310542267A CN 103817961 A CN103817961 A CN 103817961A
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- tyre bead
- tire
- automatic assembling
- assembling apparatus
- triangle rubber
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Abstract
The invention provides a tire bead automatic assembly device which, in the production of a tire bead, can inhibit poor joint of tire bead filler and poor adhesion between a tire bead core and the tire bead filler. After the tire bead filler is wound on the periphery of a forming machine formed by making multiple blade parts be disposed annularly side by side, the blade parts are made to stand up, and thus the tire tread filler and the tire tread core are joined to form a tire tread. In the tire tread automatic assembly device, conical parts are disposed on a surface of peripheral sides of the multiple blade parts in a manner that the conical parts are made to stand up toward an outer side from a tire tread core side. In the tire tread automatic assembly side, an angle of each conical part (alpha) satisfies 0 DEG<alpha<=15 DEG. The tire tread assembly device is a device for forming tire treads of tires for trucks and cars.
Description
Technical field
The present invention relates to by by be automatically the shaped tyre bead automatic assembling apparatus of tyre bead of fit engagement of the tyre bead triangle rubber of tire and bead core.
Background technology
In the time of assembling green tire, use tyre bead automatic assembling apparatus, by cross sectional shape be the tyre bead triangle rubber of elongated triangle, with cross sectional shape be the automatically fit engagement of bead core of polygon (being generally hexagon), the tyre bead that is shaped thus (for example, patent documentation 1).
The major part of existing representational tyre bead automatic assembling apparatus is schematically shown in Fig. 2.As shown in Figure 2, tyre bead automatic assembling apparatus 41 possesses for tyre bead triangle rubber G is wound into columnar forming machine 42.
Forming machine 42 be configured to multiple blade parts 48 are configured in to rotation with annular arrangement central axis L around.Each blade part 48 is configured to: by rotating and erect take swivel bearing axle 44 as fulcrum, wherein, above-mentioned swivel bearing axle 44 is arranged near the tire lip ring 43 that keeps bead core C.
Forming tyre bead with tyre bead automatic assembling apparatus carries out as follows.First, the bead core C of ring-type is installed on to the tire lip ring 43 of tyre bead automatic assembling apparatus 41.On the other hand, be wound in the outer peripheral face 42a of forming machine 42, i.e. the outer peripheral face 48a of each blade part 48 by be configured as banded tyre bead triangle rubber G with Rack.
Then, make to be wound in the tyre bead triangle rubber G of forming machine 42 and together erect with the blade part 48 that rotation erects take swivel bearing axle 44 as fulcrum, take the bottom surface of tyre bead triangle rubber G as inner peripheral portion, by engaging with the peripheral part of bead core C, form thus tyre bead.
Patent documentation 1: TOHKEMY 2002-52624 communique
But in existing tyre bead automatic assembling apparatus 41, forming machine 42 is flat forming machine, so in the time of tyre bead triangle rubber G that coiling shape of cross section is general triangular, exist tyre bead triangle rubber G is wound into spiral helicine tendency.Especially forming truck, comparatively remarkable when the tyre bead of tire (TB tire) use for bus.
In the situation that tyre bead triangle rubber G is around in to forming machine 42 with helical coil, the coiling top portion (front end face) of the tyre bead triangle rubber G reeling staggers with coiling terminal part (rear end face), so shown in for example Fig. 3 (A), exist between the front end face of tyre bead triangle rubber G and rear end face and engage shown in bad or for example Fig. 3 (B), between bead core C and tyre bead triangle rubber G, produce gap and the problem of poor attachment occurs.
And, use this tire that has produced the tyre bead manufacturing that engages bad, poor attachment likely to cause quality bad.
Summary of the invention
Therefore, problem of the present invention is to provide a kind of tyre bead automatic assembling apparatus, and manufacturing when tyre bead, the joint that can suppress tyre bead triangle rubber is bad, the generation of poor attachment between bead core and tyre bead triangle rubber.
Invention described in technical scheme 1 is a kind of tyre bead automatic assembling apparatus, after tyre bead triangle rubber being wound in to the peripheral part of the forming machine that multiple blade parts is arranged side by side and form with ring-type, described blade part is erected, thus described tyre bead triangle rubber engaged with bead core and form tyre bead, this tyre bead automatic assembling apparatus is characterised in that
Face at the outer circumferential side of described multiple blade parts is provided with tapered portion, and this tapered portion erects toward the outer side from the end of bead core side.
Invention described in technical scheme 2 is on the basis of the tyre bead automatic assembling apparatus described in technical scheme 1, it is characterized in that,
The angle [alpha] of described tapered portion is 0 ° of < α≤15 °.
Invention described in technical scheme 3 is on the basis of the tyre bead automatic assembling apparatus described in technical scheme 1 or 2, it is characterized in that,
The angle [alpha] of described tapered portion is 2 °≤α≤8 °.
Invention described in technical scheme 4 is on the basis of the tyre bead automatic assembling apparatus described in any one in technical scheme 1～3, it is characterized in that,
Described tyre bead automatic assembling apparatus is to form the device that truck is used, bus is used the tyre bead of tire.
According to the present invention, a kind of tyre bead automatic assembling apparatus can be provided, manufacture can suppress that the joint of tyre bead triangle rubber is bad when tyre bead, the generation of poor attachment between bead core and tyre bead triangle rubber.
Accompanying drawing explanation
Fig. 1 is the figure that the major part of the tyre bead automatic assembling apparatus of an embodiment of the invention is schematically shown.
Fig. 2 is the figure that the major part of existing tyre bead automatic assembling apparatus is schematically shown.
Fig. 3 (A) schematically illustrates that tyre bead triangle rubber engages bad figure, and Fig. 3 (B) is the figure that tyre bead triangle rubber poor attachment is schematically shown.
Description of reference numerals: 1,41 ... tyre bead automatic assembling apparatus; 2,42 ... forming machine; 2a, 42a ... the outer peripheral face of forming machine; 3 ... blade part erects mechanism; 4,43 ... tire lip ring; 28,48 ... blade part; 28a, 48a ... the outer peripheral face of blade part; 34,44 ... swivel bearing axle; 35 ... bar; 36 ... drive unit; C ... bead core; G ... tyre bead triangle rubber; α ... the angle of tapered portion; L ... central shaft; S ... stroke.
The specific embodiment
Below, with reference to accompanying drawing and based on embodiment, the present invention is specifically described.
Fig. 1 is the major part pie graph that an embodiment of the tyre bead automatic assembling apparatus of present embodiment is shown.Tyre bead automatic assembling apparatus 1 possesses forming machine 2, blade part erects mechanism 3 and tire lip ring 4.
Forming machine 2 is for tyre bead triangle rubber G is wound into general cylindrical shape, and configures abreast with respect to the central axis L of rotation.In addition, this forming machine 2 is made up of multiple blade parts 28, and the central axis L that multiple blade parts 28 are configured in rotation with annular arrangement around.
The outer peripheral face 28a of multiple blade parts 28 forms the outer peripheral face 2a of forming machine 2.Outer peripheral face 28a at multiple blade parts 28 is provided with tapered portion in the mode erecting toward the outer side from the end of bead core C side.
By the outer peripheral face 28a at blade part 28, tapered portion is set, even if the tyre bead triangle rubber G that is general triangular by shape of cross section is thus wound in the periphery of forming machine 2, also this tyre bead triangle rubber G can be wound into helical form.This result, the joint that can suppress in the past to occur is bad, poor attachment.
The angle [alpha] of tapered portion is suitably set according to the shape of tyre bead triangle rubber G, size, but for corresponding with the tyre bead triangle rubber G of various shape/size, and is preferably set to the scope of 0 ° of < α≤15 °.
Be 0 ° in the angle [alpha] of tapered portion, existing forming machine, as previously mentioned, can cause engaging taking place frequently of bad, poor attachment.On the other hand, set for the forming machine that exceedes 15 ° at α, contact site, towards being offset with in the past contrary direction, raises thereby cause engaging possibility bad, poor attachment.
The angle [alpha] of preferred tapered portion is 2 °≤α≤8 °, in this case, can significantly bring into play above-mentioned effect.
Blade part erects that mechanism 3 can utilize drive unit 36 and via multiple bars 35, make all blade parts 28 rotate and erect around swivel bearing axle 34, and wherein, above-mentioned swivel bearing axle 34 is arranged on the end of the bead core C side of forming machine 2.That is, the movement if the stroke S that utilizes drive unit 36 that multiple bars 35 edges are stipulated advances together, shown in dotted line, all blade parts 28 rotate and erect take swivel bearing axle 34 as fulcrum.On the other hand, if utilize drive unit 36 to make multiple bars 35 retreat together movement along the stroke S of regulation, as shown by the solid line, all blade parts 28 fall down to turn back to original state take swivel bearing axle 34 as fulcrum.
In the tyre bead automatic assembling apparatus 1 being formed by above structure, by supplying with the bead core C of ring-type and the banded tyre bead triangle rubber G of Rack, carry out the formation of tyre bead.
Particularly, the tyre bead triangle rubber G that is shaped as general triangular of cross section, the mode that is disposed at the end of the bead core C side of forming machine 2 with bottom surface side is wound in the outer peripheral face 2a of forming machine 2, i.e. the outer peripheral face 28a of multiple blade parts 28.Now, as previously mentioned, because the outer peripheral face 28a at blade part 28 is provided with tapered portion, so tyre bead triangle rubber G can not be wound into helical form, thereby can suppress to engage generation bad, poor attachment.
Then, be wound under the state of outer peripheral face 2a of forming machine 2 at tyre bead triangle rubber G, blade part erects mechanism 3 and moves, the movement thereby the stroke S that drive unit 36 stipulates multiple bars 35 edges advances together.Thus, shown in dotted line, all blade parts 28 erect take swivel bearing axle 34 as fulcrum.Its result, tyre bead triangle rubber G by make the internal diameter of one avris keep intact and another avris by hole enlargement and entirety to be formed as annulus tabular, and engage with the peripheral part of the bead core C that is installed on tire lip ring 4.Finish thus the formation of tyre bead.
In the tyre bead obtaining, occur to engage bad, poor attachment owing to suppressing tyre bead triangle rubber G, so the quality that uses the tire of this tyre bead manufacturing to play stably.
In addition, the wall thickness of the tyre bead triangle rubber of tire for TB (card tire for vehicles, bus tire) is thicker, so in existing tyre bead automatic assembling apparatus, tyre bead triangle rubber is especially easy to be wound in forming machine with helically.But, by using the tyre bead automatic assembling apparatus of present embodiment, suppress to occur to engage effect bad, poor attachment thereby can significantly bring into play in the time forming tyre bead.
Embodiment
1. embodiment and comparative example
Use the tyre bead automatic assembling apparatus that is formed forming machine by the blade part at outer peripheral face with the tapered portion of the angle [alpha] shown in table 1, the tyre bead triangle rubber forming by the bead core of 22.5-63S/1 and with hard formation and packed layer, forms tyre bead.
The Assembly Action of each tyre bead automatic assembling apparatus is carried out respectively one day repeatedly, evaluates the situation occurred of defective work.
Particularly, the machining status that engages the tyre bead that bad, poor attachment between bead core and the tyre bead triangle rubber at junction surface etc. obtains at the junction surface to the front end face of tyre bead triangle rubber and rear end face is evaluated.
Result is shown in table 1.In addition, in table 1, " ◎ " represents that the incidence of defective work is less than 1%, and "○" represents that the incidence of defective work is more than 1% and is less than 3%, and "×" represents that the incidence of defective work is more than 3%.
Table 1
| | Embodiment | 1 | |
|
|
Embodiment 5 | Embodiment 6 | Comparative example 1 | Comparative example 2 |
| The angle (α) of |
１° | ２° | ５° | ８° | １０° | １５° | ０° | １８° | |
| Materials processing quality | ○ | ◎ | ◎ | ◎ | ○ | ○ | × | × |
Known according to the embodiment 1～embodiment 6 of table 1: to be 0 ° of < α≤15 ° in the angle [alpha] of the tapered portion of the outer peripheral face of blade part, can fully to suppress that engaging of junction surface between front end face and the rear end face of tyre bead triangle rubber is bad, the generation of poor attachment between bead core and the tyre bead triangle rubber at junction surface.
Especially known according to embodiment 2～embodiment 4: the angle [alpha] in the tapered portion of outer peripheral face is 2 °≤α≤8, further suppress to engage generation bad, poor attachment.
In addition, known according to comparative example 1: to be 0 ° in the angle [alpha] of the tapered portion of outer peripheral face as in the past, cannot fully to suppress to engage generation bad, poor attachment.
In addition, known according to comparative example 2: the angle [alpha] in the tapered portion of outer peripheral face is too greater than 15 °, also cannot fully suppress to engage generation bad, poor attachment.
Above, describe the present invention based on embodiment, but the present invention is not limited to above-mentioned embodiment.In scope identical with the present invention and that be equal to, can apply various changes to above-mentioned embodiment.
Claims (4)
1. a tyre bead automatic assembling apparatus, after tyre bead triangle rubber being wound in to the peripheral part of the forming machine that multiple blade parts is arranged side by side and form with ring-type, described blade part is erected, thus described tyre bead triangle rubber engaged with bead core and form tyre bead, this tyre bead automatic assembling apparatus is characterised in that
Face at the outer circumferential side of described multiple blade parts is provided with tapered portion, and this tapered portion erects toward the outer side from the end of bead core side.
2. tyre bead automatic assembling apparatus according to claim 1, is characterized in that,
The angle [alpha] of described tapered portion is 0 ° of < α≤15 °.
3. tyre bead automatic assembling apparatus according to claim 1 and 2, is characterized in that,
The angle [alpha] of described tapered portion is 2 °≤α≤8 °.
4. according to the tyre bead automatic assembling apparatus described in any one in claim 1～3, it is characterized in that,
Described tyre bead automatic assembling apparatus is to form the device that truck is used, bus is used the tyre bead of tire.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-252818 | 2012-11-19 | ||
| JP2012252818A JP5738826B2 (en) | 2012-11-19 | 2012-11-19 | Bead automatic assembly device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103817961A true CN103817961A (en) | 2014-05-28 |
| CN103817961B CN103817961B (en) | 2017-03-01 |
Family
ID=50753380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310542267.9A Active CN103817961B (en) | 2012-11-19 | 2013-11-05 | Tyre bead automatic assembling apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5738826B2 (en) |
| CN (1) | CN103817961B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6335067B2 (en) * | 2014-08-11 | 2018-05-30 | 住友ゴム工業株式会社 | Pneumatic tire manufacturing method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3360699A (en) * | 1999-03-25 | 2000-10-16 | Goodyear Tire And Rubber Company, The | Combined bead loading and apex application system |
| JP3937703B2 (en) * | 2000-08-08 | 2007-06-27 | 住友ゴム工業株式会社 | Bead forming drum unit |
| DE102005006076A1 (en) * | 2005-02-10 | 2006-08-17 | Continental Aktiengesellschaft | Method for winding and splicing a tire building part with a varying material thickness in the cross-sectional profile |
| CN201338396Y (en) * | 2008-12-16 | 2009-11-04 | 万达集团股份有限公司 | Triangle adhesive tape lining machine |
| JP4897896B2 (en) * | 2010-02-05 | 2012-03-14 | 住友ゴム工業株式会社 | Bead core holder |
| CN201645845U (en) * | 2010-03-10 | 2010-11-24 | 双钱集团（如皋）轮胎有限公司 | Umbrella-form attaching mechanism of tyre umbrella-form attaching machine |
| CN202186060U (en) * | 2011-09-06 | 2012-04-11 | 重庆佳通轮胎有限公司 | Turnover plate attached by apex |
-
2012
- 2012-11-19 JP JP2012252818A patent/JP5738826B2/en active Active
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2013
- 2013-11-05 CN CN201310542267.9A patent/CN103817961B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103817961B (en) | 2017-03-01 |
| JP5738826B2 (en) | 2015-06-24 |
| JP2014100816A (en) | 2014-06-05 |
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