EP3349976A1 - Method for marking a tyre and device for carrying out said method - Google Patents
Method for marking a tyre and device for carrying out said methodInfo
- Publication number
- EP3349976A1 EP3349976A1 EP16751565.9A EP16751565A EP3349976A1 EP 3349976 A1 EP3349976 A1 EP 3349976A1 EP 16751565 A EP16751565 A EP 16751565A EP 3349976 A1 EP3349976 A1 EP 3349976A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- marking
- tire
- conveying
- adjustable
- lifting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/72—Side-walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/0016—Handling tyres or parts thereof, e.g. supplying, storing, conveying
- B29D2030/0027—Handling cured tyres, e.g. transferring or storing after vulcanizing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/72—Side-walls
- B29D2030/728—Decorating or marking the sidewalls after tyre vulcanization
Definitions
- the invention relates to a method for marking a tire in a marking station and to an apparatus for carrying out the method.
- tire-specific characteristic values are determined and applied as specific markings on the sidewalls of the tires.
- the characteristic values are, for example, an imbalance, a uniformity, a cone or bumps or even rejects, wherein the characteristic values are the special markings, eg. B. in the form of imprints, in particular multi-colored imprints are assigned.
- the quality condition of the tires can be recognized during a quality control.
- the markings or imprints are made at a certain angle, based on the circumference of the tire, the so-called marking angle, and a certain radius, the marking radius. Due to the variety of characteristics and the different colors you need a variety of embossing equipment.
- the tire to be marked is located on a lifting table, above and below the lifting table or the tire marking are arranged, which are deliverable to the upper side wall of the tire and to the lower side wall of the tire for the purpose of applying markings.
- the disadvantage here is the relatively high number of marking or embossing devices, which also leads to increased costs of the marking station.
- An object of the present invention is to propose an improved method of marking tires and a suitable apparatus for carrying out such a method.
- a method for marking a tire the following method steps are provided: First, the tire is fed to the marking station on a first, middle level and positioned; then the tire is raised to a second, higher level and marked on its first side wall, ie the upper side wall. After this first marking, the tire is lowered and turned to the first, middle level, d. H. rotated 180 degrees around one of its transverse axes so that the marked top becomes the bottom. Thereafter, the tire is again raised to the second, higher level and marked on its second side wall, ie the top. Marking can - as is known - be done by a hot stamping of a point or other sign.
- the double-sided marked tire is conveyed out of the marking station.
- the advantage of the method according to the invention lies in the fact that the tire is turned between the first and the second mark, so that successively the top and the bottom or the first and the second side wall of the tire can be marked. As a result, as explained in more detail below, a simplified device for carrying out the method is made possible.
- the marking is made at a predetermined adjustable circumferential angle, d. H. before the marking is applied, the relevant circumferential or marking angle is set at the marking station. This makes it possible to apply the marking specifically on the circumference of the tire, for example, where an imbalance was detected.
- the marking takes place at a predetermined radius, relative to the longitudinal axis of the tire.
- the predetermined radius is set at the marking station before the marking is applied. This results in a further possibility for a location-appropriate attachment of the markings.
- a support frame, a lifting device, a conveying device, a marking device and a tire turning device are provided.
- the support frame forms the frame to which the lifting device with the conveyor, the marking and the tire turning device are attached.
- This device forms the marking station and allows, in particular due to the tire turning device, the implementation of the aforementioned method.
- only one marking device is necessary, which considerably simplifies the construction of the device or the marking station and reduces costs.
- the lifting device preferably a lifting table
- the conveyor form a common conveying and lifting unit, which in the vertical, d. H. is adjustable in height.
- the height adjustment of the conveyor and lifting unit is required to carry out the individual process steps, in particular also the turning process.
- the conveying and lifting unit is adjustable in three planes, namely a first, middle level, a second, higher level and a third, lower level.
- the middle plane is particularly intended for the infeed and outfeed of the tire, the second, higher or upper plane for the passage of the mark on the sidewalls of the tire and the third, lower or lower plane for allowing a 180 degree turn of the tire about its transverse axis in the turning device.
- the conveying and lifting unit may preferably guided by known guide means on the vertical bars of the support frame in the vertical and by a known drive, for. B. be adjusted in the form of a spindle drive.
- the conveyor on two horizontally and mutually parallel conveyor tracks or conveyor belts, which detect the tire in the feed, promote inward, position there and finally promote after marking to the outside. Between the two conveyor tracks so much distance is left that the stands for the tire turning device go free with a lowering of the conveyor and lifting unit. This is necessary for the turning process, in which the turning device fixed on the support frame projects through the conveyor tracks.
- the marking device is arranged above the lifting table and in the region of the second, higher level, ie it is only one marking device, specifically provided on the side above the lifting table.
- the marking device has a hot embossing device with a plurality of hot stampers, wherein different embossing points with different colors can be produced by the individual hot stampers. Due to the one-sided attachment of only one marking device, all the required hot stampers, for example eight pieces, are accommodated in the marking device.
- the marking device comprises a plurality of pivotable marking tongs, which act as a counterhold on the inside of the tire sidewall against the hot stamping on the outside of the tire sidewall.
- the inside of the tire sidewall is thus supported by the marking pliers during the embossing process.
- the tire turning device which is fixed to the support frame, two diametrically opposed gripping arms, which are pivotable about a common pivot axis.
- the gripping arms grasp the tire between them and turn it about its transverse axis so that the top of the tire comes down and the bottom up.
- the gripping arms in the direction of the pivot axis so axially adjustable and force-controlled to the outer circumference of the tire can be pressed.
- the tire is frictionally captured by the gripping arms and can be turned by them, d. H. be pivoted 180 degrees.
- the gripping arms are synchronously adjustable in the axial direction. This ensures that the gripping arms are evenly delivered when detecting the tire, so that a displacement of the tire is avoided relative to its original position.
- Show it 1 shows a marking station according to the invention in a front view
- FIG. 7a shows a marking package of the marking device according to FIG. 7 and FIG
- FIGS. 1 to 4 show a marking station 1 according to the invention as a whole in different views, while FIGS. 5 to 7 show components of the marking station 1.
- Fig. 1 shows the marking station 1, which serves the marking of tires, not shown here, in a front view with a support frame 2, also called frame 2, which in Fig. 1 visible vertical beams 2a, 2b and horizontal rails 2c, 2d has.
- the vertical bars 2a, 2f and the horizontal bars 2h, 2j recognizable, while in the plan view in Fig. 3, the horizontal bars 2d, 2e, 2h, 2j are shown.
- FIG. 4 shows the four vertical bars 2a, 2b, 2g, 2f and the horizontal bars 2c, 2d, 2e, 2h, 2i, 2j, 2k.
- Fig. 1 is a conveying and lifting device 3, also called conveyor and lifting unit 3, height adjustable, d. H. arranged in the direction of the vertical spar 2b.
- a tire turning device 4 called short turning device 4 fixed, d. H. fixed to the support frame 2.
- a marking device 5 is pivotally and slidably mounted on the horizontal spar 2d.
- Fig. 2 shows the marking station 1 in a side view with the vertical bars 2a, 2f and the horizontal bars 2h, 2j.
- the conveying and lifting device 3 comprises a guide element extending between the vertical bars 2a, 2f. 3 a, via which the conveying and lifting device 3 is held and guided with respect to the vertical bars 2 b, 2 g (see FIG. Furthermore, the turning device 4 can be seen, which is arranged centrally with respect to the two vertical bars 2a, 2f. It also recognizes a spindle drive 6, via which the conveying and lifting device 3 is height adjustable.
- the marking device 5 is pivotable about a vertical axis a.
- On the outside of the support frame 2, a control cabinet 7 is fixed, in which a control unit, not shown, is recorded with control elements for the marking station 1.
- Fig. 3 shows the marking station 1 in a view from above, d. H. with a view to the attachment of the marking device 5, which is pivotable about the axis a (see Fig. 2) arranged perpendicular to the plane of the drawing.
- the marking device 5 is further displaceable in the direction of the rails 5a, 5b.
- the conveying and lifting device 3 has two conveyor tracks 3b, 3c arranged parallel to one another, preferably conveyor belts 3b, 3c, which project outwardly beyond the horizontal bar 2h.
- the turning device 4 is arranged within the clear width between the conveyor belts 3b, 3c, so that it is free in a height adjustment of the conveying and lifting device 3.
- Fig. 4 shows a perspective view of the spatial arrangement of the stationary arranged turning device 4, the height adjustable relative to the vertical bars 2b, 2g arranged conveying and lifting device 3 and the rotatably and slidably arranged marking device. 5
- FIG. 5 shows the conveying and lifting device 3 as a single subassembly, which on the one hand comprises the conveyor consisting of the two conveyor belts 3b, 3c and, on the other hand, the lifting device consisting of the guide element 3a and a lifting table 3d.
- Conveying and lifting device 3 are, as shown in FIG. 5, designed as a structural unit and thus adjustable together in the vertical direction. The height adjustment can - as already mentioned - done by the spindle drive 6.
- the conveyor belts 3b, 3c are preferably driven by an electric motor and extend substantially in a horizontal direction.
- FIG. 6 shows the turning device 4 as a single assembly, which essentially comprises two diametrically opposed gripping arms 4a, 4b, which are pivotable about a common pivot axis b and in the direction of the pivot axis b.
- the gripper arms 4a, 4b are supported via a base 4c opposite the support frame 2 (FIG. 2).
- FIG. 7 shows the marking device 5 as a single assembly, which has marking packages 5a and marking pliers 5b.
- the Markiervole 5a have not shown, commercially available hot stampers (not numbered), the number of which depends on the number of marking points to be mounted on the tire.
- the hot stamping, z. B. eight pieces are associated with the marking pliers 5b, which support the tire to be marked during the marking or hot stamping process on the inside.
- FIG. 7 a shows a single marking package 5 a of the marking device 5.
- FIGS. 8a to 8h show individual method steps in the course of the method for marking a tire.
- Fig. 8a shows the marking station 1, as shown in Figures 1 to 7 and described above, in its normal position, d. H. the conveying and lifting device 3 is located in a first or middle plane E1.
- a tire 8 is laid down, which has a first side wall 8a, here the upper side of the tire 8, and is to be marked in the marking station 1.
- Fig. 8b shows the tire 8 in its marking position, in which it was moved by the conveyor 3 in the horizontal direction (in plane E1).
- the pivotable and displaceable marking device 5 is set to a marking angle and a marking radius, i. G. the polar coordinates for the point at which the marker is to be applied.
- Fig. 8c shows the tire 8 in a raised position, which it has reached by raising the conveying and lifting device 3 from the plane E1 (Fig. 8b) to the second or higher plane E2.
- the tire 8 is now in the working area of the marking means 5 whose marking pliers 5b are closed and support the upper tire sidewall 8a from the inside thereof.
- a first mark is applied by the hot stampers.
- Fig. 8d the conveying and lifting device 3 is lowered to a plane E1 * , which lies slightly below the first or middle plane E1, so that the gripper arms 4a, 4b (Fig. 6) of the turning device 4 by the conveyor belts 3b, 3c (FIG. 5) and thus can grip the tire 8.
- the tire 8 is clamped force-controlled between the gripping arms.
- Fig. 8e the conveying and lifting device 3 is lowered to a third or lower plane E3, so that the tire 8 is rotated by 180 degrees (relative to the position in Fig. 8d), d. H. can be turned.
- Fig. 8e shows the tire 8 after a 90 degree turn about its transverse axis.
- Fig. 8h the conveying and lifting device 3 is raised again to the first or middle level E1
- the tire 8 was previously released from the turning device 4 and is now - to complete the process - on the conveyor and lifting device 3 from the Marking station 1 also promoted, with the first side wall 8a is up again.
- the method according to the invention has been described by way of example with reference to the above description for two markings, ie a mark on the upper side of the tire and a mark on the underside of the tire after turning.
- the top and bottom are applied, for example, four markers per page, which differ with respect to the Markierwinkels and / or the Markierradius'.
- the markings or markings are - as mentioned above - preferably applied with commercially available hot stamping and particularly preferably in different colors. Due to the tire turning device 4, only one marking device 5 - on the respective upper side of the tire - is required.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
- Testing Of Balance (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015217632.0A DE102015217632A1 (en) | 2015-09-15 | 2015-09-15 | Method of marking a tire and device for carrying it out |
PCT/EP2016/068932 WO2017045843A1 (en) | 2015-09-15 | 2016-08-09 | Method for marking a tyre and device for carrying out said method |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3349976A1 true EP3349976A1 (en) | 2018-07-25 |
Family
ID=56686802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16751565.9A Withdrawn EP3349976A1 (en) | 2015-09-15 | 2016-08-09 | Method for marking a tyre and device for carrying out said method |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3349976A1 (en) |
DE (1) | DE102015217632A1 (en) |
WO (1) | WO2017045843A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020148455A1 (en) * | 2019-01-18 | 2020-07-23 | Stefan Dengler | Apparatus and method for marking tyres by means of laser beams |
CN114918966B (en) * | 2022-05-28 | 2024-02-13 | 金锋馥(滁州)科技股份有限公司 | Tire embryo frock board separator |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1289701B1 (en) * | 1996-11-29 | 1998-10-16 | Bridgestone Firestone Tech | METHOD FOR MARKING A TIRE |
JP4238071B2 (en) * | 2003-06-12 | 2009-03-11 | 株式会社ブリヂストン | Marking device |
DE102006053161C5 (en) * | 2006-11-10 | 2018-03-29 | Steinbichler Optotechnik Gmbh | Tire testing system and procedure for its operation |
US20090295179A1 (en) * | 2008-05-30 | 2009-12-03 | Michaels Leonard L | Tire lifting mechanism |
JP5346565B2 (en) * | 2008-12-01 | 2013-11-20 | 株式会社ブリヂストン | Inkjet printing device for donut type (ring type) articles |
JP5680447B2 (en) * | 2011-03-01 | 2015-03-04 | 株式会社神戸製鋼所 | Marking device |
JP5760634B2 (en) * | 2011-04-19 | 2015-08-12 | 横浜ゴム株式会社 | Conveying apparatus and conveying method for vulcanized tire |
JP6034759B2 (en) * | 2013-06-27 | 2016-11-30 | 株式会社神戸製鋼所 | Marking device |
-
2015
- 2015-09-15 DE DE102015217632.0A patent/DE102015217632A1/en not_active Withdrawn
-
2016
- 2016-08-09 WO PCT/EP2016/068932 patent/WO2017045843A1/en unknown
- 2016-08-09 EP EP16751565.9A patent/EP3349976A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE102015217632A1 (en) | 2017-03-16 |
WO2017045843A1 (en) | 2017-03-23 |
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18D | Application deemed to be withdrawn |
Effective date: 20210501 |