DE102016214627A1 - Method and device for building a pneumatic vehicle tire - Google Patents

Abstract

A method of constructing a pneumatic vehicle tire comprising the steps of: a) building a tire carcass (7) on a carcass machine, b) transferring the constructed tire carcass (7) to a crowning station (1) and positioning the tire carcass (7) on a crowning drum (8), c) winding belt plies (12a, 12b) on a building drum (11) arranged on a robot arm (10) of a robot (2) at a belt layer winding station (3), d) pivoting the robot arm (10) to a capping winding station (4) and forming a belt bandage (13) by spirally winding at least one bandage strip (4a) on the outside of the radially outer belt ply (12b), e) pivoting the robotic arm to (10) a strip winding unit (5) and applying a Tread by spirally winding at least one as needed synchronously extruded rubber compound strip onto the belt bandage (13) and finishing a belt tread package (9), f) pivoting the robot arms (10) together with the building drum (11) and the belt-tread package (9) created on the building drum (11) from the strip-winding unit (5) to a transfer device (6) having a transfer ring (17), g) Transferring the transfer ring (17) via the building drum (11) and transferring the belt tread package (9) to the transfer ring (17), h) moving the transfer ring (17) together with the belt tread package (9) over the Tire carcass (7) on the crowning machine, i) Completion of the green tire with further conventional steps.

Description

The invention relates to a method and a device for building a pneumatic vehicle tire.

It is known to build passenger car pneumatic tires in a two-stage manufacturing process, wherein the tire carcass is built on a separate carcass machine and is moved from the carcass machine to a crowning machine by means of a carcass transfer unit. By crowning the tire carcass, it is connected to a separately constructed and coaxially positioned belt-tread package. The finished green tire is taken from the bender and vulcanized. Such a tire building method is for example from DE 10 2013 108 759 A1 known.

The invention is based on the object to provide an improved method and an improved device which make it possible to create treads in a particularly flexible manner and therefore also with different structure, with a fully automatic sequence of the construction process should be possible.

• a) Aufbauen einer Reifenkarkasse auf einer Karkassmaschine,
• b) Transfer der aufgebauten Reifenkarkasse zu einer Bombierstation und Positionieren der Reifenkarkasse auf einer Bombiertrommel,
• c) Aufwickeln von Gürtellagen auf eine auf einem Roboterarm eines Roboters angeordnete Aufbautrommel an einer Gürtellagen-Wickelstation,
• d) Schwenken des Roboterarms zu einer Capply-Wickelstation und Erstellen einer Gürtelbandage durch spiraliges Wickeln zumindest eines Bandagestreifens auf die Außenseite der radial äußeren Gürtellage,
• e) Schwenken des Roboterarms zu einer Stripwinding-Einheit und Aufbringen eines Laufstreifens durch spiraliges Wickeln von zumindest einem bedarfssynchron extrudierten Kautschukmischungsstreifen auf die Gürtelbandage und Fertigstellen eines Gürtel-Laufstreifen-Paketes,
• f) Schwenken des Roboterarms mitsamt der Aufbautrommel und dem auf der Aufbautrommel erstellten Gürtel-Laufstreifen-Paket von der Stripwinding-Einheit zu einer einen Transferring aufweisenden Transfereinrichtung,
• g) Verfahren des Transferringes über die Aufbautrommel und Übergabe des Gürtel-Laufstreifen-Paketes an den Transferring,
• h) Verfahren des Transferringes mitsamt dem Gürtel-Laufstreifen-Paket über die Reifenkarkasse an der Bombiermaschine,
• i) Fertigstellen des Rohreifens mit weiteren konventionellen Schritten.

This task is solved by a procedure with the following steps:

• a) constructing a tire carcass on a carcass machine,
• b) transferring the built up tire carcass to a crowning station and positioning the tire carcass on a crowning drum,
• c) winding belt layers onto a building drum arranged on a robotic arm of a robot at a belt layer winding station,
• d) pivoting the robot arm to a capply winding station and creating a belt bandage by spirally winding at least one bandage strip on the outside of the radially outer belt ply,
• e) pivoting the robot arm to a strip winding unit and applying a tread by spirally winding at least one as-needed extruded rubber compound strip onto the belt bandage and finishing a belt tread package;
• f) pivoting the robot arm together with the building drum and the belt-tread package created on the building drum from the strip-winding unit to a transfer device having a transfer ring,
• g) moving the transfer ring over the building drum and transferring the belt tread package to the transfer ring;
• h) moving the transferring ring together with the belt-tread package over the tire carcass on the crowning machine,
• i) Finish the green tire with further conventional steps.

• – eine Karkassmaschine zum Aufbauen einer Reifenkarkasse,
• – eine Bombierstation mit einer Bombiertrommel zum Positionieren der aufgebauten Reifenkarkasse,
• – zumindest einen Roboter mit einem beweg- und schwenkbaren Roboterarm, auf welchem eine Aufbautrommel zum Aufbauen eines Gürtel-Lauftreifen-Paketes fix positioniert ist,
• – eine Gürtellagen-Wickelstation zum Aufwickeln von Gürtellagen auf die Aufbautrommel,
• – eine Capply-Wickelstation zum Aufwickeln einer Gürtelbandage auf die radial äußere Gürtellage aus zumindest einem Bandagestreifen,
• – eine Stripwinding-Einheit zum Aufwickeln zumindest eines Kautschukmischungsstreifens zum Bilden eines Laufstreifens,
• – eine Transfereinrichtung mit einem Transferring zur Aufnahme des fertig aufgebauten Gürtel-Lauftreifen-Paketes von der Aufbautrommel und zum Verfahren des fertig aufgebauten Gürtel-Lauftreifen-Paketes zu der auf der Bombiertrommel positionierten Reifenkarkasse.

The device according to the invention has the following components or stations:

• A carcass machine for building a tire carcass,
• A crowning station with a crowning drum for positioning the built-up tire carcass,
• At least one robot with a movable and pivotable robot arm, on which a building drum for building a belt-tread package is fixedly positioned,
• A belt layer winding station for winding belt layers onto the building drum,
• A capping winding station for winding a belt bandage on the radially outer belt ply of at least one bandage strip,
• A strip-winding unit for winding at least one rubber compound strip to form a tread,
• A transfer device having a transferring ring for receiving the finished belt-tread package from the building drum and moving the finished belt-tread package to the tire carcass positioned on the crowning drum.

The particular advantage of the invention, both as regards the method and the device, is, above all, that a fully automatic and particularly rational construction of tires is made possible. As a result, tires with treads of different construction and can be constructed as needed in each case in small quantities. Through the use of a robot, on which the building drum is positioned, and the ability to position this respectively for applying the belt layers, the winding bandage and the tread strip by striping, remains in all these process steps, the building drum on the robot and does not need to be transported separately become. Some process steps take place at the same time, so that the inventive method has a high degree of automation and is particularly efficient.

In a preferred embodiment of the invention, a multi-layered tread, for example a tread with a tread base and a tread cap, is wound on the radially outermost belt layer in step e) from demand-synchronously extruded rubber mixture strips. Furthermore, according to the invention in step e), an as-needed extruded rubber compound profile for forming tread wings laterally of Tread applied. The strip winding unit according to the invention with a corresponding number of extruders, for example, roller head extruders, equipped to create treads of different construction according to the inventive method and with the device according to the invention.

Further features, advantages and details of the invention will now be explained in more detail with reference to schematic representations. Show

1 Stations of a device for building a pneumatic vehicle tire and

2 a building drum with applied tire components.

The method according to the invention described below is a multi-stage method for constructing a pneumatic vehicle tire, in particular for passenger cars. In this case, tire components or tire components are mentioned, which are not shown in the figures. After the person skilled in these components are known, is taken from a separate presentation distance.

The stations or main components of the device include a carcass machine, not shown, a crowning station 1 , at least one robot 2 , at least one belt layer winding station 3 , at least a Capply wrapping station 4 , at least one stripwinding unit 5 and a transfer device 6 ,

On the conventionally constructed and conventionally working carcass machine, tire carcasses are used 7 built up. A tire carcass 7 comprises in particular an inner layer layer of a rubber mixture - this forms in the finished constructed and vulcanized tires an air-tight inner layer - a carcass ply and two core packages having bead cores with core profiles. The carcass ply can be embodied in one or more layers in a known manner, wherein each ply has textile reinforcing elements which are embedded in a rubber mixture. At the carcass machine also the so-called layer envelopes are performed, wherein the lateral edge portions of the carcass ply are wrapped around the core packages. Rimstripprofile and sidewall profiles are then applied in a known manner to the tire carcass. The finished tire carcass 7 is by means of a transfer device, not shown to the in 1 shown crowning station 1 transferred and on a bowing drum 8th positioned. The on the drum 8th positioned tire carcass 7 is merely indicated.

At the crowning station 1 becomes the tire carcass 3 with an already built-up, annular belt-tread package 9 completed and by a Bombiervorgang in which the tire carcass 7 bloated, connected to this.

The belt tread package 9 is, tailored to the structure of the tire carcass and as described in more detail below, built.

The in 1 indicated robots 2 has a variably movable, in particular multi-membered robot arm 10 on, on which a building drum designed in a manner known per se as a segment drum 11 is arranged. The robot 2 positions the robot arm 10 with the building drum 11 first in front of the belt layer winding station 3 so by turning the building drum 11 opposite the robot arm 10 or by turning the robot arm 10 together with the building drum 11 the intended belt layers, for example, two belt layers 12a and 12b , on the building drum 11 can be wound on top of each other. The cutting and splicing of the belt layers 12a . 12b takes place in a conventional manner. The robot 2 Now swing the robot arm 10 together with the building drum 11 to the Capply winding station 4 , so here on the radially outer belt layer 12b the belt bandage 13 is wound by spiral winding one or more bandage strips as so-called wound bandage. 2 schematically shows the two on the building drum 11 located belt layers 12a . 12b and the belt bandage 13 ,

The belt layers 12a . 12b be in a conventional manner, for example, of material webs 3a . 3b wound, having embedded in a gumming mixture, mutually parallel reinforcing members, in particular steel cords, wherein the strength members to the winding extend at an acute angle, such that in the finished tire built the cords of one belt layer crossing the steel cords of the other belt layer. A bandage strip 4a is known manner from embedded in a rubber compound, parallel to each other strength members, for example made of polyamide, which usually extend in the strip longitudinal direction and parallel to each other.

Once the belt layers 12a . 12b and the belt bandage 13 are applied, the robot pans 2 the robot arm 10 together with the building drum 11 to the stripwinding unit 5 , The stripwinding unit 5 is exemplary with an extruder 5a However, in particular a plurality of extruders for demand-synchronous extrusion of rubber mix strip for a multi-part tread, for example a tread with a tread base 14 and a tread cap 15 , as well as rubber compound profiles for tread wings 16 on. At the stripwinding unit 5 For example, the rubber extrusion strip for the tread base is prepared directly by extrusion 14 spirally on the outside the belt bandage 13 then the rubber mix strip for the tread cap 15 on the tread base 14 spirally wound. Then the extruded wing profiles become laterally 16 applied. The tread layers can be wound in several superposed turns. In 2 is schematically a possible belt-tread package 9 , which is still on the building drum 11 is shown.

The robot 2 pivots the robot arm 10 together with the building drum 11 to the one with the crowning station 1 coupled transfer device 6 , on which a transferring ring 17 is arranged movable. The transfer ring 17 Beyond the belt tread package 9 on the building drum 11 procedure, takes over the belt tread package 9 and moves this to the crowning station 1 over the tire carcass located there 7 , The tire carcass 7 will be in the belt-run-tire package 9 cambered, connected with this and pressed. The ready-built green tire is removed by means of a conveyor, not shown, and then vulcanized in a conventional manner in a hot press.

The device according to the invention for building a pneumatic vehicle tire may comprise a plurality of robots and a plurality of strip winders, so that the productivity can be correspondingly increased.

LIST OF REFERENCE NUMBERS

1

Bombierstation

2

robot

3

Belt ply winding station

3a, 3b

web

4

Capply-wrapping station

4a

bandage strip

5

Stripwinding unit

5a

extruder

6

transfer device

7

tire

8th

Bombiertrommel

9

Belt-tread package

10

robot arm

11

building drum

12a, 12b

belt layer

13

belt bandage

14

Tread rubber base

15

tread cap

16

Laufstreifenwing

17

Transferring

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102013108759 A1 [0002]

Claims (8)

A method of building a pneumatic vehicle tire comprising the steps of: a) building a tire carcass ( 7 ) on a carcass machine, b) transfer of the built-up tire carcass ( 7 ) to a crowning station ( 1 ) and positioning the tire carcass ( 7 ) on a crowning drum ( 8th ), c) winding up belt layers ( 12a . 12b ) on a robot arm ( 10 ) of a robot ( 2 ) arranged building drum ( 11 ) at a belt layer winding station ( 3 ), d) pivoting of the robot arm ( 10 ) to a Capply winding station ( 4 ) and creating a belt bandage ( 13 ) by spirally winding at least one bandage strip ( 4a ) on the outside of the radially outer belt layer ( 12b ), e) pivoting the robot arm to ( 10 ) to a stripwinding unit ( 5 ) and applying a tread by spirally winding at least one demand-synchronously extruded rubber compound strip onto the belt bandage (US Pat. 13 ) and finishing a belt-tread package ( 9 ), f) pivoting the robot arm ( 10 ) together with the building drum ( 11 ) and on the building drum ( 11 ) created belt-tread package ( 9 ) from the stripwinding unit ( 5 ) to a transferring ring ( 17 ) having transfer means ( 6 g) method of the transfer ring ( 17 ) via the building drum ( 11 ) and handover of the belt tread package ( 9 ) to the transfer ring ( 17 h) Transferring process ( 17 ) including the belt tread package ( 9 ) over the tire carcass ( 7 ) on the crowning machine, i) finishing the green tire with further conventional steps. A method according to claim 1, characterized in that in step e) from demand synchronously extruded rubber mixture strip a multilayer tread, for example a tread with a tread base ( 14 ) and a tread cap ( 15 ), on the radially outermost belt layer ( 12b ) is wound. A method according to claim 1 or claim 2, characterized in that in step e) a demand synchronously extruded rubber compound profile for forming Laufsteifenwings ( 16 ) is applied laterally of the running stiffener. Device for building a pneumatic vehicle tire, which device comprises the following components or stations: a carcass machine for building a tire carcass, a crowning station 1 ) with a crowning drum ( 8th ) for positioning the constructed tire carcass ( 7 ), - at least one robot ( 2 ) with a movable and pivotable robot arm ( 10 ), on which a building drum ( 11 ) for building a belt tread package ( 9 ) is fixed, - a belt layer winding station ( 3 ) for winding up belt layers ( 12a . 12b ) on the building drum ( 11 ), - a Capply winding station ( 4 ) for winding a belt bandage ( 13 ) on the radially outer belt layer ( 12b ) from at least one bandage strip ( 4a ), - a stripwinding unit ( 5 ) for winding at least one rubber compound strip to form a tread, - a transfer device ( 6 ) with a transfer ring ( 17 ) for receiving the finished belt runway package ( 9 ) from the building drum ( 11 ) and for moving the finished belt-tread package ( 9 ) to the on the bowing drum ( 8th ) positioned tire carcass ( 7 ). Apparatus according to claim 4, characterized in that either the building drum ( 11 ) on the robot arm ( 10 ) or the robot arm ( 10 ) together with building drum ( 11 ) is rotatably arranged. Apparatus according to claim 4, characterized in that the strip-winding unit ( 5 ) has multiple extruders for on-demand extrusion of rubber blend strips for layers of a multilayer tread. Apparatus according to claim 4, characterized in that the strip-winding unit ( 5 ) an extruder for demand synchronous extrusion of a rubber compound profile for tread wings ( 16 ) having. Device according to claim 4, characterized in that the transfer device ( 6 ) directly with the crowning station ( 1 ).

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