DE102020214262A1 - Device for evenly rolling up backing strips, method for uniformly rolling up single or multi-layered backing strips and use of the device - Google Patents

Abstract

The invention relates to a device for evenly rolling up underlay tapes, comprising the following units: at least one take-up unit for taking up a roll with an underlay tape, at least one take-up unit for taking up an underlay tape unrolled from a roll on the take-up unit, at least one drive unit for driving the rotation the receiving unit and / or for driving the rotation of the reeling unit and at least one guide unit for stretching and aligning the underlay tape unrolled by the reeling unit. The invention also relates to a method for evenly rolling up single or multi-layer underlay tapes and the use of the device for rolling up an underlay tape and then placing an inner liner, a side wall or a reinforcement on the rolled-up support tape.

Description

The invention relates to a device for evenly rolling up backing strips. The invention also relates to a method for evenly rolling up single or multi-layer underlay tapes and the use of the device for rolling up an underlay tape and then placing an inner liner, a side wall or a reinforcement on the rolled up underlay tape.

In the rubber industry, various manufacturing steps are carried out in the manufacture of technical rubber products such as tires. Among other things, an extruded endless strip for the production of an inner liner, for example, is rolled up onto a roll together with an underlay material in order to store the endless strip. After storage, the rolled up inner liner can be unrolled again from the said roll and, after being cut to size in a tire building machine, can be used to build a tire. The unrolling of the continuous strip onto a so-called "liner", which is a corresponding base material, is often done with the help of a tire building machine, during which the tire building machine cannot be used to build a tire. The backing material used is often not wound up centered, which leads to problems in the tire building process.
Often the underlay material has to be discarded afterwards or it has to be laboriously rolled up manually onto another roll. This creates wrinkles in the base material and, in addition, there is friction between the layers of the base material and the cassette and thus abrasion of the base material. This abrasion leads to the fact that in the worst case even parts of the abraded abrasive material get into the inner liner and thus worsen the necessary sealing function of the inner liner.

One object on which the invention is based is to provide a device with which the problems known in the prior art are solved. In particular, a device is to be provided which enables a method for evenly rolling up single or multi-layer underlay tapes.

• - mindestens eine Aufnahmeeinheit zum Aufnehmen einer Rolle mit einem Unterlageband,
• - mindestens eine Aufrolleinheit zum Aufnehmen eines von einer auf der Aufnahmeeinheit befindlichen Rolle abgerollten Unterlagebands,
• - mindestens eine Antriebseinheit zum Antreiben der Rotation der Aufnahmeeinheit und/oder zum Antreiben der Rotation der Aufrolleinheit und
• - mindestens eine Führungseinheit zum Strecken und Ausrichten des von der Aufrolleinheit abgerollten Unterlagebands.

According to the invention, this object is achieved by a device for evenly rolling up backing strips, comprising the following units:

• - at least one take-up unit for taking up a roll with an underlay tape,
• - At least one take-up unit for taking up an underlay tape unrolled from a roll located on the take-up unit,
• - At least one drive unit for driving the rotation of the receiving unit and / or for driving the rotation of the reeling unit and
• - At least one guide unit for stretching and aligning the underlying tape unrolled from the reeling unit.

A device according to the invention is advantageous that, by means of the device according to the invention, an underlay tape can be unrolled from a roll and rolled back onto the roll evenly, i.e. in particular centered and with smaller folds or without folds. The underlay tape is rolled up in such a way that the lateral edges of the underlay tape are arranged exactly one above the other and rolled up onto the roll again. This corresponds to a uniform rolling up within the scope of the present invention - with a reduction or elimination of the formation of wrinkles in the underlying tape. With the device according to the invention, a roll can thus be unrolled and then evenly rolled up again with an underlay tape.

• - Lebensdauer vom Unterlageband, d.h. der Liner, wird verlängert und dadurch werden Kosten durch kleineren Verbrauch vom Unterlageband reduziert
• - Das mit der erfindungsgemäßen Vorrichtung zentrierte und mit kleineren Falten oder ohne Falten aufgewickelte Unterlageband erlaubt im Folgenden ebenfalls eine zentrierte Aufwicklung vom Material (extrudierter Endlosstreifen oder Festigkeitsträger) auf den Aufwickelstationen im Materialherstellprozess, Beispiele von Aufwickelstationen sind Extruder oder Kalander.
• - Die Zentrierte Aufwicklung vom Material (extrudierter Endlosstreifen oder Festigkeitsträger) in den Aufwickelstationen verbessert das Auflegen vom Material im Reifenbauprozess. Somit wird die Produktionseffektivität der Reifenbaumaschinen gesteigert und Qualität des Endproduktes verbessert.

Further advantages of the present invention are:

• - The service life of the underlay tape, ie the liner, is extended and costs are reduced as a result of the lower consumption of the underlay tape
• - The backing tape centered with the device according to the invention and wound with smaller folds or without folds also allows a centered winding of the material (extruded endless strips or reinforcement) on the winding stations in the material manufacturing process, examples of winding stations are extruders or calenders.
• - The centered winding of the material (extruded endless strips or reinforcement) in the winding stations improves the laying of the material in the tire building process. This increases the production efficiency of the tire building machines and improves the quality of the end product.

In the context of the present invention, a winding station can be, for example, one of the cassettes described above or below.

In the context of the present invention, an underlay tape can have one or more layers, it preferably being a single layer. In the context of the present invention, a roller can also be a roller and thus only consist of a cylindrical body. In the context of the present invention, a roller can also be a roller with two disk-shaped boundary walls attached to the roller sides for roughly centering the underlying tape to be rolled up.

In the context of the present invention, an underlay tape is in particular a liner such as is used in tire manufacture for separating several unvulcanized rubber layers or reinforcements.

A device according to the invention is preferred as described above or as described above as preferred, the guide unit comprising a stretching sub-unit which has at least two rollers each with an external thread on the surface, the two rollers being arranged in such a way that the underlying tape unwound from the reeling unit by means of the passage over the two rollers, the external thread of each roller is preferably mirror-symmetrical and the mirror plane of the mirror symmetry of the external thread runs perpendicular to the axis of rotation of the respective roller and centrally through the respective roller, the stretching subunit in the horizontal direction particularly preferably by means of a control unit can be moved and the control unit is designed to align the surface of the respective roller centrally to the unrolled underlay tape.

An advantage of the above-described aspect of the present invention is that creases can be removed from the underlying tape unrolled from the reeling unit by means of a stretching sub-unit described above.

• - die Lebensdauer vom Unterlageband verlängert und Kosten durch einen kleineren Verbrauch vom Unterlageband reduziert,
• - Abfall vom Material (Extrudierter Streifen oder Festigkeitsträger) reduziert,
• - die Produktionseffektivität der Reifenbaumaschinen gesteigert und
• - die Qualität des Endproduktes durch eine faltenfreie Lagerung verbessert.

The stretch subassembly removes or improves wrinkles in the backing tape. This will:

• - the service life of the underlay belt is extended and costs are reduced through less use of the underlay belt,
• - Waste from the material (extruded strip or reinforcement) reduced,
• - the production efficiency of the tire building machines increased and
• - Improved the quality of the end product through wrinkle-free storage.

A device according to the invention is preferred as described above or as described above as preferred, wherein the guide unit comprises an alignment sub-unit which comprises at least one roller and an optical sensor for detecting the position of the underlying tape on said one roller of the alignment sub-unit, one roller of the Alignment subunit or parts of the roller of the alignment subunit can be horizontally displaced and the horizontal displacement can be regulated by one or another control unit so that this is dependent on the signals of the optical sensor for detecting the position of the single or multilayered backing tape on said centering a roller of the registration subassembly.

An advantage of the above-described aspect of the present invention is that the backing tape centered on said one roller of the alignment sub-unit can be rolled up centered on the roller in the take-up unit. This creates a roll with an evenly rolled-up backing tape.

• - die Verlängerung der Lebensdauer vom Unterlageband und Reduzierung der Kosten durch kleineren Verbrauch vom Unterlageband,
• - Reduzierung des Abfalls vom Material (Extrudierter Streifen oder Festigkeitsträger),
• - die gesteigerte Produktionseffektivität der Reifenbaumaschinen, und
• - die verbesserte Qualität des Endproduktes.

Zusätzlich verbessert die zentrierte Aufwicklung vom Material (extrudierter Endlosstreifen oder Festigkeitsträger) in den Kassetten das Auflegen vom Material im Reifenbauprozess. Somit wird die Produktionseffektivität der Reifenbaumaschinen gesteigert und Qualität des Endproduktes verbessert.Other advantages of the alignment subassembly are:

• - the extension of the service life of the underlay belt and reduction of costs through lower consumption of the underlay belt,
• - Reduction of waste from the material (extruded strip or reinforcement),
• - the increased production efficiency of tire building machines, and
• - the improved quality of the end product.

In addition, the centered winding of the material (extruded endless strips or reinforcement) in the cassettes improves the placement of the material in the tire building process. This increases the production efficiency of the tire building machines and improves the quality of the end product.

A device according to the invention is preferred as described above or as described above as preferred, the device comprising a drive unit for rotating a roller on the receiving unit and / or for rotating a further roller on the roll-up unit, the device preferably additionally having an adjusting unit for adjusting the Drive unit comprises, wherein the adjustment unit is designed to change the relative position between the drive shaft for driving a roller on the receiving unit and the drive shaft for driving a roller on the reeling unit.

An advantage of the aspect of the present invention described above is that by means of a drive unit described above, rollers with backing tapes with different dimensions, in particular with different lengths and widths, can be used in a device according to the invention.

The above-described advantageous aspects of a device according to the invention for evenly rolling up backing strips also apply to all aspects of a method described below and the advantageous aspects of the method according to the invention discussed below apply correspondingly to all aspects of a device according to the invention for evenly rolling up backing strips.

1. A) Bereitstellen einer Rolle mit einem auf der Rolle aufgerollten Unterlageband,
2. B) Aufnehmen des in Schritt A) bereitgestellten Unterlagebands auf eine Aufnahmeeinheit zum Aufnehmen einer Rolle mit einem ein- oder mehrschichtigen Unterlageband,
3. C) Abrollen des auf der in Schritt B) aufgenommenen Rolle aufgerollten Unterlagebands und Aufrollen auf des abgerollten Unterlagebands auf eine Aufrolleinheit zum Aufnehmen eines von der auf der Aufnahmeeinheit befindlichen Rolle abgerollten Unterlagebands,
4. D) Abrollen des auf der in Schritt C) auf die Aufrolleinheit aufgerollten Unterlagebands und Führen des aufgerollten Unterlagebands durch eine Führungseinheit zum Strecken und Ausrichten des von der Antriebseinheit abgerollten Unterlagebands, wobei das Ausrichten bevorzugt mittels einer vorstehend beschriebenen Ausrichtungseinheit umfassend einen optischen Sensor und eine Steuerungseinheit durchgeführt wird,
5. E) Strecken und Ausrichten des von dem in Schritt D) abgerollten Unterlagebands mittels der einen Führungseinheit und
6. F) Aufrollen des von der Führungseinheit in Schritt E) gestreckten und ausgerichteten Unterlagebands auf die auf der Aufnahmeeinheit aufgenommenen Rolle, sodass eine Rolle mit einem gleichmäßig aufgerollten Unterlageband entsteht.

The invention also relates to a method for evenly rolling up single or multi-layer underlay tapes, preferably using a device as described above or as described above as preferred, comprising the following steps:

1. A) Providing a roll with an underlay tape rolled up on the roll,
2. B) taking up the underlay tape provided in step A) on a take-up unit for taking up a roll with a single or multi-layer underlay tape,
3. C) unwinding the underlay tape rolled up on the roll picked up in step B) and rolling it up on the unrolled underlay tape onto a roll-up unit for picking up an underlay tape unrolled from the roll located on the take-up unit,
4. D) unrolling the underlay tape rolled up on the reeling unit in step C) and guiding the rolled up underlay tape through a guide unit for stretching and aligning the underlay tape unrolled by the drive unit, the alignment preferably by means of an alignment unit described above comprising an optical sensor and a control unit is carried out,
5. E) stretching and aligning the underlying tape unrolled in step D) by means of one guide unit and
6. F) rolling up the underlay tape stretched and aligned by the guide unit in step E) onto the roll received on the receiving unit, so that a roll with a uniformly rolled-up underlay tape is produced.

It is advantageous in the method according to the invention that the method can only be operated by one worker by means of the control unit of the device according to the invention. Until now, several workers were required for this.

A method according to the invention as described above is preferred, steps B), C) and D) being carried out exclusively on a device according to the invention and not on a tire building system.
An advantage of the above-described aspect of the present invention is that the tire building system can thus only be used for building tires or blanks and thus higher loads are possible. In the prior art, a tire building system was also used at the appropriate time for the above steps B), C) and D) of the method according to the invention.

The above-described advantageous aspects of a device according to the invention for evenly rolling up backing strips and a method according to the invention for uniformly rolling up single or multi-layered backing strips also apply to all aspects of a use described below and the advantageous aspects of use according to the invention discussed below apply accordingly to all aspects of an inventive use Device for evenly rolling up backing strips and a method according to the invention for uniformly rolling up single or multi-layered backing strips.

The invention also relates to a use for rolling up an underlay tape and then placing an inner liner, a side wall or a reinforcement on the rolled up underlay tape, the reinforcement preferably being a belt ply or a carcass ply.

Figure list

• 1: Perspektivische Ansicht auf eine schematisch dargestellte erfindungsgemäße Vorrichtung;
• 2: Perspektivische Ansicht auf eine schematisch dargestellte Führungseinheit einer erfindungsgemäßen Vorrichtung;
• 3: Perspektivische Ansicht auf eine schematisch dargestellte Antriebseinheit einer erfindungsgemäßen Vorrichtung

It shows:

• 1 : Perspective view of a device according to the invention shown schematically;
• 2 : Perspective view of a schematically illustrated guide unit of a device according to the invention;
• 3rd : Perspective view of a schematically illustrated drive unit of a device according to the invention

• - eine Aufnahmeeinheit 2 zum Aufnehmen einer Rolle mit einem Unterlageband 22,
• - eine Aufrolleinheit 3 zum Aufnehmen eines von einer auf der Aufnahmeeinheit 2 befindlichen Rolle abgerollten Unterlagebands 22,
• - Antriebseinheit 4 zum Antreiben der Rotation der Aufnahmeeinheit 2 und/oder zum Antreiben der Rotation der Aufrolleinheit 3 und
• - eine Führungseinheit 5 zum Strecken und Ausrichten des von der Aufrolleinheit 3 abgerollten Unterlagebands 22, der so genannte Liner.

Gemäß einem erfindungsgemäßen Verfahren wird eine Rolle mit einem aufgerollten Unterlageband 22 von einer Aufnahmeinheit 2 aufgenommen und anschließend wird das Unterlageband 22 von der besagten Rolle auf der Aufnahmeinheit 2 auf eine leere Rolle in der Aufrolleinheit 3 aufgerollt. Im Anschluss wird in einem erfindungsgemäßen Verfahren das Unterlageband 22 in Förderrichtung 23 wie in 1 gezeigt durch die Führungseinheit 5 geleitet, in der es durch die Streckuntereinheit 6 und die Ausrichtungsuntereinheit 11 zurück zur Rolle auf der Aufnahmeeinheit 2 geführt wird. Die Streckuntereinheit 6 umfasst dabei zwei Walzen 7 mit je einem spiegelsymmetrischen Außengewinde und mit je einer Drehachse 8. 1 shows a schematic representation of a device according to the invention 1 for evenly rolling up underlay tapes 22nd , comprising the following units:

• - a recording unit 2 for taking up a roll with an underlay tape 22nd ,
• - a reel unit 3rd for picking up one of one on the pickup unit 2 located roll of unrolled underlay tape 22nd ,
• - drive unit 4th to drive the rotation of the pickup unit 2 and / or to drive the rotation of the reel unit 3rd and
• - a management unit 5 for stretching and aligning the from the reel unit 3rd unrolled backing tape 22nd , the so-called liner.

According to a method according to the invention, a roll with a rolled-up backing tape is produced 22nd from a recording unit 2 and then the backing tape is taken up 22nd from said roll on the take-up unit 2 on an empty roll in the take-up unit 3rd rolled up. Subsequently, in a method according to the invention, the underlying tape 22nd in conveying direction 23 as in 1 shown by the guide unit 5 in which it passed through the stretching sub 6th and the alignment subassembly 11 back to the roll on the take-up unit 2 to be led. The stretching sub 6th includes two rollers 7th each with a mirror-symmetrical external thread and each with a rotation axis 8th .

The smoothing and / or stretching of the between the two rollers 7th running underlay belt 22nd is made by rotating the rollers 7th with the threads enabled. The alignment subassembly 11 includes a roller 12th with horizontally movable elements and with an axis of rotation 8th as well as with an optical sensor 13th .

2 shows a schematic representation of a guide unit 5 a device according to the invention, wherein the stretching subunit 6th and the alignment subassembly 11 in a frame 21st are attached and from a control unit 10 can be controlled and / or regulated. By means of drive and adjustment elements 24 is the control unit 10 able to the reels 7th move in the horizontal direction or the speed of the rollers 7th depending on the drive unit 4th to control or regulate the speeds used. By means of drive and adjustment elements 24 is the control unit 10 also able to move the segments of the roller 12th in the horizontal direction as a function of that of the optical sensor 13th to shift the detected signals or the speed of the roller 12th to control or regulate. In addition, in 2 the axes of rotation 8th of the rollers 7th shown.

3rd shows a schematic representation of a drive unit 4th a device according to the invention, wherein the drive unit 4th a frame 20th , two drives 17th , 18th , two connections 19th for connecting a roll with an underlay tape and two adjustment units 14th for adjusting the drive unit 4th includes. The two drives 17th , 18th can use vertical or horizontal guide elements 15th , 16 can be adjusted and thus adapted to the respective size of the new roll to be wound in the receiving unit.

List of reference symbols

1

Device according to the invention for evenly rolling up backing tapes

2

Pick-up unit for picking up a roll with an underlay tape; Pick-up unit with a roller without boundary walls

3

Take-up unit for taking up an underlying tape unrolled from a roll located on the take-up unit; Roll-up unit with one roll without boundary walls

4th

Drive unit for driving the rotation of the receiving unit and for driving the rotation of the reeling unit

5

Guide unit for stretching and aligning the underlay tape unrolled from the reeling unit

6th

Stretching subunit

7th

Rollers with an external thread on the surface

8th

Axis of rotation of the roller

9

Mirror plane

10

Control unit

11

Alignment subassembly

12th

Alignment sub roller

13th

Optical sensor for detecting the position of the backing tape on the roller 12th the alignment subassembly

14th

Adjustment unit for adjusting the drive unit

15th

vertical guide element for guiding a drive

16

horizontal guide element for guiding a drive

17th

Drive for rotating a roller on the receiving unit

18th

Drive for rotating a roll on the reeling unit

19th

Connection for connecting a roll with a wound underlay tape

20th

Frame of the drive unit

21st

Framework of the management unit

22nd

Underlay tape

23

Guiding direction of the underlay belt

24

Drive and adjustment elements

Claims (8)

Apparatus for evenly rolling up backing tapes, comprising the following units: - at least one take-up unit for taking up a roll with an underlay tape, - At least one take-up unit for taking up an underlay tape unrolled from a roll located on the take-up unit, - At least one drive unit for driving the rotation of the receiving unit and / or for driving the rotation of the reeling unit and - At least one guide unit for stretching and aligning the underlying tape unrolled from the reeling unit. Device according to Claim 1 , wherein the guide unit comprises a stretching sub-unit which has at least two rollers each with an external thread on the surface, the two rollers are arranged so that the underlying tape unrolled from the winding unit can be unfolded by passing over the two rollers, the external thread each The roller is preferably mirror-symmetrical and the mirror plane of the mirror symmetry of the external thread runs perpendicular to the axis of rotation of the respective roller and centrally through the respective roller. Device according to Claim 2 , wherein the stretching sub-unit can be moved in the horizontal direction by means of a control unit and the control unit is designed to align the unrolled underlay tape in the center of the respective roller with a thread on the surface. Apparatus according to any one of the preceding claims, wherein the guide unit comprises an alignment sub-unit comprising at least one roller and an optical sensor for sensing the position of the backing tape on said one roller of the alignment sub-unit. Device according to Claim 4 The one roller of the alignment subunit or parts of the roller of the alignment subunit can be horizontally displaced and the horizontal displacement can be regulated by one or another control unit so that the underlying tape is dependent on the signals from the optical sensor for detecting the position of the underlying tape centered on said one roller of the registration subassembly. Device according to one of the preceding claims, wherein the device comprises an adjustment unit for adjusting the drive unit, wherein the adjustment unit is adapted to change the relative position between the drive shaft for driving a roller on the receiving unit and the drive shaft for driving a roller on the reeling unit . Method for evenly rolling up single or multi-layer underlay tapes, preferably using a device according to one of the preceding Claims 1 to 7th , comprising the following steps: A) providing a roll with an underlay tape rolled up on the roll, B) taking up the underlay tape provided in step A) on a receiving unit for receiving a roll with a single or multi-layer underlay tape, C) unrolling the on the In step B) the rolled up underlayment tape is taken up and rolled up on the unrolled underlay tape on a reeling unit for receiving an underlay tape unrolled from the roll located on the take-up unit, D) unwinding the underlay tape rolled up on the in step C) onto the reel-up unit and guiding the unrolled and rolled up Underlay tape through a guide unit for stretching and aligning the underlay tape unrolled by the drive unit, E) stretching and aligning the underlay tape unrolled from the in step D) by means of the one guide unit, the alignment preferably by means of an alignment unit of a device according to de n Claims 1 to 5 is carried out, the alignment unit particularly preferably having an optical sensor and a control unit, and F) rolling up the backing tape stretched and aligned by the guide unit in step E) onto the roll received on the receiving unit, so that a roll with a uniformly rolled-up backing tape is produced. Use of a device according to one of the Claims 1 to 7th for rolling an underlay tape onto a roll and then - placing an endless rubber belt for producing an inner liner of a pneumatic vehicle tire or for producing a side wall of a pneumatic vehicle tire or - placing a reinforcement of a pneumatic vehicle tire on the underlay tape.

Images