DE202014101735U1 - Splicing device for splicing cord tape strips, in particular steel cord or textile cord - Google Patents

Abstract

Splicing device for splicing cord band strips, in particular steel cord or textile cord, comprising a splicing unit in which the leading edge of a conveyed cord band strip is spliced to the trailing edge of the previously spliced cord band strip in a region on the edge side to form a spliced cord band, a conveyor belt strip to be spliced on , A conveyor device that transports the spliced cord band, characterized in that a device is provided for aligning the leading edges of the cord band stiffener to be spliced and / or the trailing edge of the spliced cord band relative to the splicing unit, and that a device for aligning the cord band strip to be spliced and / or the spliced cord bands is provided in a direction perpendicular to the transport direction of the conveyors.

Description

The invention relates to a splicing device for splicing cord tape strips, in particular steel cord or textile cord, comprising a splicing device in which the leading edge of a conveyed Cordbandstreifens are spliced to the trailing edge of the previously spliced Cordbandstreifens in an edge-side region to form a spliced Cordbands, the one transporting conveyer device to be spliced on a cord tape strip to be spliced, a conveyor device transporting away the spliced cord tape.

1 General to splicing machines

As a rule, rubber-coated material is supplied on rolls in the web-processing industry in cord cutting machines. The unvulcanized rubber material is permeated with textile and / or steel cord inserts and finds application in the manufacture of tires in the tire industry. For processing, it is unrolled, cut at a certain angle, reassembled, passed through the production process and rolled up again at the end of the machinery.

The machine component splice station is designed to add two strip ends together. Cut strips of cord material are conveyed in a production line to a splice line and assembled there in a splicing device using a splicing tool. This connection point is called splice connection, abbreviated splice. The two strips are mechanically connected together without the aid of any additives in effective application. The splice connection of the two strip edges takes place by butt joining or by overlapping the two strip edges. This process creates an endless belt below. The edges of the assembled strips must be within a certain tolerance.

Depending on the type of equipment of the Cordschneidanlage, whether carcass or belt system, and processed material, such. As textile or steel cord material, the splice station is executed in different constellations. The type of plant and the material to be processed determine the design of the splicing device, as well as the conveying speed and thus the output of the plant.

These aforementioned work steps and production parameters specify the design and construction for practice-oriented concepts of the splice station.

• – Keine exakte Lageposition der Materialbahn zur vorgegebenen Spleißlinie nach dem Heranfördern an die Spleißeinrichtung
• – Zu verspleißende Kanten verlaufen nicht parallel zueinander
• – hohe Anforderung an Cordbahngeschwindigkeit und Ausbringung
• – Klebriges Gummimaterial
• – Wulstbildung beim Spleißen
• – geforderte Toleranzen an die Spleißverbindung werden nicht eingehalten
• – die geforderte Spleißnahtfestigkeit wird nicht erreicht (Messung der Zugkraft)
• – Breitenmaß der Verbindung (bei Überlappspleiß) liegt nicht in der geforderten Toleranz
• – die Schnittkanten sind nicht parallel zueinander
• – Faltenbildung im Material

The following difficulties may arise during splicing:

• - No exact position position of the web to the given splice line after conveying to the splicer
• - Edges to be spliced do not run parallel to each other
• - high demands on Cordbahngeschwindigkeit and output
• - Sticky rubber material
• - Bulging during splicing
• - Required tolerances on the splice connection are not met
• - the required splice strength is not reached (measurement of tensile force)
• - Width dimension of the connection (with overlap splice) is not within the required tolerance
• - The cut edges are not parallel to each other
• - Wrinkling in the material

• – Optimaler Materialtransport vor und nach der Spleißeinrichtung erzielt faltenfreie Materialförderung
• – Exaktes Positionieren der geschnittenen Materialstreifen an der Spleißlinie
• – Optionales Ausrichten und Positionieren der Materialstreifen an der Spleißlinie
• – Unterschiedliche Spleißverfahren passend zur Anwendung und Ausbringung
• – Geeignete Spleißeinrichtung für unterschiedliche Materialien und Materialdicken
• – Anordnung von Kombinationen für stumpfe und überlappende Spleißverbindungen
• – Ergonomische und sichere Bedienung der Anlage

The difficulties are solved by:

• - Optimum material transport before and after the splicing device achieves wrinkle-free material delivery
• - Exact positioning of the cut strips of material on the splice line
• - Optional alignment and positioning of the strips of material at the splice line
• - Different splicing methods suitable for application and application
• - Suitable splicing device for different materials and material thicknesses
• - Arrangement of combinations for blunt and overlapping splices
• - Ergonomic and safe operation of the system

For an exact splice connection, the alignment of the edges to be spliced together, be it splice splicing or overlap splicing, is important so that in the case of butt splicing there is a homogenous connection over the entire length of the splice, and in the case of lap splice, a consistent overlap width over the entire length of the splice is given.

The invention is based on the problem to provide a splicing device that allows the formation of exact splices.

To solve the problem is provided according to the invention in a splicer of the type mentioned that a device for aligning the leading edges of the spliced Cordbandsteifens and / or the trailing edge of the spliced Cordbands is provided relative to Spließeinheit, and that means for aligning the to be spliced Cordbandstreifens and / or the spliced cord band is provided in a direction perpendicular to the transport direction of the conveyors.

In the splicing device according to the invention, alignment of the cord tape strip and / or the spliced cord tape in two directions or with respect to two edge portions is possible, namely in the conveying direction and thus in relation to the edges to be spliced itself, on the other transverse to the conveying direction and thus with respect to the longitudinal edges of the cord band strip or the spliced cord band. Thus, a precise alignment is possible both with an inaccuracy in the region of the edges to be spliced and with a given transverse offset of the bands relative to one another, so that overall the bands to be spliced in the splicing region can be aligned very accurately with respect to each other and therefore can also be spliced very precisely. Homogeneous splice seams are thereby obtained.

Further advantages, features and details of the invention will become apparent from the embodiments described below and with reference to the drawings. Showing:

1 - 3 show schematically possible Splice connection types

4 shows a schematic side view of the tape transport system in the region of the splice line

5 shows a plan view of the arrangement 4 with a supplied strip of material with wavy leading edge

6 shows one of the 5 corresponding supervision in the position in which the leading end of the wavy leading edge of the material strip has reached the associated sensor

7 shows the end position where the single edge tape units align the leading edge of the strip of material

8th and 9 the 6 and 7 corresponding oversights during the alignment of the trailing edge of the material strip

10 to 14 show schematically simplifies the principle of operation in different working positions for aligning the strips of material on the splice line with a gripping device

15 and 16 show top views of a splice station for butt splices in belt cord cutting systems with different splice angle settings with the same material width feed

17 and 18 show front view and top view of a splice station for butt splices to the 15 and 16

19 indicates the splicer 18 in the front view

20 and 21 show schematically simplifies the splice tool with bevel gear pair

22 to 29 show a possible functional sequence for splicing with splicing tools by means of bevel gear pairs

30 schematically shows the operating principle for splice station for butt splice in a carcass cord cutting in plan view

31 and 32 show front view and top view of a splice station for butt splices to the 30

33 indicates the splicer 32 in the front view

34 schematically shows another operating principle for splice station for butt splice in a carcass cord cutting machine with a rack butt splicer in plan view

35 and 36 show front view and top view of a rack stump splicer

37 to 39 show schematically the principle of operation for a rack-stump splicer

40 and 41 schematically show the operating principle of a splicing station with overlap splicer in a carcass cord cutting in plan view

42 to 45 show the functional principle for lap splices in a carcass cord cutting machine

46 shows a front view of a splice station for lap splices in a carcass Cordschneidanlage

47 and 48 schematically show another operating principle of a splicing station with overlap splicer in a carcass cord cutting in plan view

49 and 50 show front view and top view of a splice station with overlap splicer in a carcass cord cutting machine

51 and 52 schematically show the operating principle of a splicing station with overlap splicer in a belt Cordschneidanlage in plan view

53 and 54 show front view and top view of a splice station with overlap splicer in a belt cord cutting machine

55 and 56 schematically show the operating principle of the splicing device to overlap splices 53

57 and 58 show a further front view and top view of a splice station with lap splicer in a belt Cordschneidanlage

59 to 64 show schematically simplifies the operating principle of the splicing device overlap splices too 57

65 to 68 schematically show the operating principle of a splicing station with 2-axis splicer in a Cordschneidanlage in plan view

69 and 70 show front view and top view of a splice station with 2-axis splicer in a Cordschneidanlage

71 indicates the splicer 69 in the side view in the material conveying direction

72 and 73 show the splicing tool, the splice heads 71

74 and 75 show a simplified plant layout of a system without slitter and with slitter for the production of a carcass

76 and 77 show a simplified plant layout of a system without slitter and with slitter for the production of a belt

Basic principle and embodiments of the splicing device (hereinafter referred to as "splicing station")

1.1 basic principle

The basic function of a splicing device, hereafter called "splicing station", is always the same. A cut tape strip made of cord material is conveyed with its front edge to a splice line defined by the splitting unit and joined there by means of a splicing tool to the trailing edge of a second tape strip. The tape strips consist of an unvulcanized or pre-vulcanized rubber material that forms the carrier matrix. Textile or steel cord inserts are often integrated in this rubber material. The previously cut tape sections are spliced by means of the splicing device or the splice tool provided on the device side either dull or overlapping, that is, firmly connected to one another, which is possible as a result of the stickiness of the rubber material.

The material strips or the material web to be conveyed are in each case located on the driven material conveying device or material removal device and consist of at least one material conveyor belt or a plurality of material conveyor belts. Thus, the material strip or the material web are transported in the material conveying direction by the splicing station. Through the use of magnets or vacuum under the material conveyor belt, the coefficient of friction is increased and the material strip or the material web held in position accordingly. Magnets are used for processing material webs with steel cord inserts and for non-magnetic material webs vacuum is used as support.

If necessary, the splicing device can be pivoted at an angle to the material conveying direction about a vertically arranged pivot point. The resulting angle of the splicer to the material conveying direction is referred to as a splice angle, and usually corresponds to the intersection angle of the band sections at their tips.

To illustrate the different splices is in the 1 to 3 the connection types butt and overlap splice with different splice angle shown schematically simplified.

Different material thicknesses, material types (textile or steel cord), splicing angles and the resulting length of the splice connection result in different designs of the splicing device and the splicing station component. Various solution concepts are taken into account accordingly in the technical design and meet the user needs through the optional adaptation to the production process.

When splicing the strip sections to produce the continuous web required tolerances must be complied with. The difficulty with this is to align the edge of the conveyed belt section to the edge of the second band section before the splicing process in a timely manner. This alignment process is carried out in continuous operation of Cordschneidanlage in interaction with the material handling equipment in the material supply and / or material removal.

The splicing station consists essentially of a material conveyor, a Splicing device with imaginary splice line and splicing tool and a material removal device.

In order to promote and position the cut strip section to the imaginary splice line, a material conveying device is arranged in front of the splicing device. In this case, a second band portion is located on the material removal device and the trailing edge of the second band portion is positioned on the imaginary splice line. After the splicing operation, the assembled strip sections are transported further in combination with the material conveying device and the material removal device. The band section or the endless track is in this case on at least one material conveyor belt or more material conveyor belts. The processes for conveying, stopping, positioning and splicing are carried out by different queries of the band sections and the higher-level control.

Often, in the processing of thin Cordbandmaterialien the two edges to be spliced together something deformed, that is, that the respective edge is not rectilinear, usually a slight waveform or bow shape is given.

For positioning and aligning the tape portion edge on the splice line is in a plurality of material conveyor belts in certain applications, a material handling system, such as DE 101 19 508 known, integrated. Due to this type of edge alignment, the edge can be aligned almost in a straight line over the individual conveyor belts and their individual drives, and any waviness or arch shape can thus be compensated for by the quasi-individual pulling or stopping via the individual conveyor belts. The alignment of the web edge on the splice line can be done with the leading and / or trailing edge of the belt section.

This type of edge alignment is in the 4 to 9 shown schematically simplified.

When processing strip sections with cutting angles in the range of 15 ° -90 °, a further alignment concept of the strip sections is used. In this case, with the aid of a gripping device (pliers), the cut strip section is gripped during the conveying movement in front of the splicing device and positioned corresponding to the material conveying direction with an electric positioning drive (servo or stepper motor) to the exact splice position on the splice line.

This type of alignment and positioning is in the 10 to 14 shown schematically simplified with different processing stages.

Another possibility of strip strip alignment is to adjust the material removal device transversely to the material conveying direction. In this case, the lateral edge of the cut strip section is detected in front of the splice line and, for this purpose, the material removal belt is moved transversely together with the horizontal strip section. This type of adjustment is usually for wide webs and tape sections with a cutting angle of 70 ° -110 °.

As a splicing tool in the splicer different tools consisting of upper and lower tool are known. For example, a splicing tool may include an upper splice strip and a splice table, the splice strip being movable relative to the splice table on which the two overlapping strip sections lie and which forms the lower die. Also known are splicing tools which comprise a pair of bevel gears as an upper tool, which is pulled horizontally out of a rest position over the opposing band sections, which are then butt spliced. The counter bearing takes place either via a further synchronously movable bevel gear pair as a lower tool, via an opposing, synchronously moved counterpressure roller or else simply via an opposing splice table, which forms the lower tool. Finally, splicing tools are also known in which the upper tool and the lower tool are each formed from a pair of toothed strips. Here is the upper tool, so the two upper racks, vertically in abutment against the butt-spliced band sections movable, which are superimposed on the lower splice bars. For final splicing procedure then all splice bars under engagement of the splice bars teeth facing each other.

In special applications, the facility operator demands the possibility of manual splicing of the cut material sections. For this purpose, a defined area in the conveying path of the material removal device is arranged, which gives the operator the opportunity to manually splice the cut strips of material. The previously arranged splicing device is deactivated.

These previously mentioned production parameters and application examples specify the design and construction for practice-oriented concepts of the splicing station.

1.2 Possible embodiments

Depending on the cut of the band sections and the type of connection of the cut strips of material, whether butt or overlap connection, there are different designs and combinations of the splicing station component.

Versions of the splice station:

• - Splicing station belt system
• - Splicing station carcass plant
• - Rack stump splicer
• - Overlap splicer in carcass plant
• - Overlap splicer in belt system
• - 2-axis splicer
• - combinations of splicing devices (overlap and stump)

The different designs and arrangements will be described in more detail below. It should be noted that the splicing can be done differently. Manual, semi-automatic and fully automatic versions are known but not described and illustrated in every detail.

A mirror-image construction is, for example, also possible without problems, as well as the provision of additional or the omission of individual functions, plant or machine elements.

1.3 Description of the embodiments

1.3.1 splicing station belt system

This type of splice station is used in belt cord cutting machines for the production of an endless cord made of cord material. The 15 and 16 illustrate the change in size of the band sections with the same material width (MB) but with different cutting or splicing angle.

The 17 to 19 show the execution of a splicing station ( 1 ) for blunt splices with splice angles in the range of about 10 ° -90 °.

The splice station ( 1 ) consists of a material conveyor ( 2 ), a splicing device ( 4 ), a fulcrum ( 5 ) with imaginary splice line ( 55 ) and a material removal device ( 3 ).

The splicing device ( 4 ) consists of a guide frame ( 9 ) with traversing device ( 20 ) for the respective splice heads ( 10 ) and a splice table ( 14 ). The components of the splicing device ( 4 ) are on the guide frame ( 9 ) are arranged and adjusted accordingly with angle adjustment. The guide frame ( 9 ) rests on a frame ( 6 ) with fulcrum ( 5 ).

The splicing device ( 4 ) is at an angle to the material conveying direction ( 50 ) around the vertically arranged pivot point ( 5 ) pivotable. With the driven angle adjustment ( 15 ), the splicing device ( 4 ) to the required splice angle ( 57 ).

The complete material conveyor ( 2 ) can be used for maintenance purposes parallel to the material conveying direction ( 50 ) are moved.

The cut band sections ( 51 ) are used with the driven material conveyor ( 2 ) to the splice line ( 55 ) of the splicing device ( 4 ). In the material conveyor ( 2 ) is an adjusting device in the middle region ( 18 ) arranged. Horizontally across the material conveying direction ( 50 ) arranged pivot points ( 19 ) at the beginning and at the end of the tape support system ( 2 ), the conveyor line can be minimally lowered in horizontal angle and raised again. By lowering the material conveyor ( 2 ), a new section of material can be prepared during the splicing process. This principle is used to achieve a high output of splices.

To cut the band ( 51 ) correct position at the splice line ( 55 ) to position and align is a gripping device ( 17 ) just before the splicing device ( 4 ) arranged. The gripping device ( 17 ) is in material conveying direction ( 50 ) adjustable longitudinally and transversely to this. The adjustment and the position correction required thereby takes place during the conveying movement.

After positioning and alignment of the web edges to be spliced, the splicing device ( 4 ). After splicing, the assembled band sections ( 51 + 52 ) with one after the splicing device ( 4 ) arranged driven material removal device ( 3 ) until the web edge end of the resulting web ( 54 ), ie the next web edge to be spliced, is positioned at the splice line.

To the band sections ( 51 ) or the material web ( 54 ) in their positional position during conveyance can be corrected optionally a guide ruler ( 16 ) or a side shifter device ( 21 ) to be ordered.

The advantage of this design of the splicer is the slim, space-saving design for different splicing angles, as well as the fully automatic operation of the splicing station. Another advantage of this design is the time savings of the operator when setting the required splice angle, since with little effort can be adjusted very quickly to different splice angles.

The 20 to 21 schematically show the operating principle for the splicing tool of the splicing device ( 4 ) by means of bevel gear pair. In the 22 to 29 For this purpose, a possible sequence of the splicing device is shown schematically.

The splicing tool above ( 7 ), also splice head ( 10 ) is in the form of two tilted and meshed bevel gears ( 11 ) educated. The bevel gear pair is transverse to the seam ( 55 ), at which the two tape strips ( 51 + 52 ) abut each other. As a rule, at least two splice heads (for reasons of time) are 10 ) used. The splice heads ( 10 ) are each to a driven displacement device ( 20 ) with guidance system ( 13 ) coupled. The moving device ( 20 ) runs horizontally, linearly and parallel to the imaginary splice line ( 55 ).

The splice tool below ( 8th ) usually forms a splice table ( 14 ). This splice table ( 14 ) is below the conveyor belt of the material removal device ( 3 ) and runs parallel to the imaginary splice line ( 55 ). As a result, during the splicing process, the splicing device ( 4 ) at respective splice angle ( 57 ) and the required splice length are supported accordingly.

The splice heads ( 10 ) are staggered by means of a lifting device ( 12 ), z. B. cylinder or actuator accordingly delivered to the previously mutually positioned band edges. The starting point for the splicing process takes place approximately in one third of the splice connection. After the respective placement of the splice heads ( 10 ) becomes linear, in the course of the splice line ( 55 ), in the pressed state over the strip material ( 51 + 52 ) are pulled toward the lateral band edges over the band material. The splice heads ( 10 ) can run or be driven loose. It is desirable that the splice heads leave the web edge end as simultaneously as possible. When pulling over the strip material ( 51 + 52 ) this is compacted and thus spliced.

Sequence of splice heads:

22 - basic position - band sections ( 51 / 52 ) are at splice line ( 55 ) - Splice heads are in the up position

23 - splice head ( 10-1 ) presses on tape sections ( 51 / 52 )

24 - splice head ( 10-1 ) moves horizontally in the direction of the outer edge of the rail - splice head ( 10-2 ) moves a piece in this direction so that no open gap arises

25 - splice head ( 10-1 ) continues - splice head ( 10-2 ) presses on tape sections ( 51 / 52 )

26 - splice head ( 10-1 ) continues until the web edge ( 51 / 52 ) - splice head ( 10-2 ) moves in the opposite direction

27 - splice head ( 10-1 ) goes into position above - splice head ( 10-2 ) continues until the web edge ( 51 / 52 ) is left

28 - splice head ( 10-1 ) moves back to the basic position - splice head ( 10-2 ) goes into position above

29 - splice head ( 10-1 ) has reached basic position - splice head ( 10-2 ) also moves back to basic position

Depending on the splice length, different concept sequences and starting points of the splice heads are possible. So z. As with very short splices, working with only one splice head from one edge to another, so not from the middle of the splice out possible.

1.3.2 splicing station carcass installation

This type of splice station is used in carcass cord cutting machines for the production of an endless cord made of cord material. In 30 The functional principle of the splicing station is shown schematically.

The 31 to 33 show the execution of a splicing station ( 1 ) for blunt splices with splice angles of 90 °.

The splice station ( 1 ) consists of a material conveyor ( 2 ), a splicing device ( 4 ) with imaginary splice line ( 55 ) and a material removal device ( 3 ).

The guide frame ( 9 ) is fixed in this embodiment, since always the splice angle ( 57 ) is processed by 90 °. Furthermore, in this embodiment, the material removal device ( 3 ) together with the generated material web ( 54 ) by means of an adjusting device ( 22 ) transversely to the material conveying direction ( 50 ). As a result, the web outer edges of the material web ( 54 ) to the band section ( 51 ) in front of the splicing device ( 4 ).

The complete material conveyor ( 2 ) can be used for maintenance purposes parallel to the material conveying direction ( 50 ) are moved.

The cut band sections ( 51 ) are used with the driven material conveyor ( 2 ) to the splice line ( 55 ) of the splicing device ( 4 ). In the material conveyor ( 2 ) is an adjusting device in the middle region ( 18 ) arranged. By a horizontal transversely to the material conveying direction ( 50 ) arranged pivot point ( 19 ) at the beginning of the tape support system ( 2 ), the conveyor line can be minimally lowered in horizontal angle and raised again. By lowering the material conveyor ( 2 ), a new section of material can be prepared during the splicing process. This principle is used to achieve a high output of splices.

A corresponding web edge detection ( 69 ), z. B. sensor or edge sensor, before and after the splice line ( 55 ) detects the positional position of the web edges of the material sections ( 51 / 52 ) in the material conveying direction ( 50 ) to each other. After positioning and alignment of the web edges to be spliced ( 51 / 52 ) the splicing device ( 4 ). Optionally deliverable fixing rollers ( 70 ) support the splicing process. The fixing rollers ( 70 ) are transverse to the material conveying direction ( 50 ) are arranged and are delivered via a lifting device accordingly and press the material during the splicing down and fix it.

To the band sections ( 51 ) or the material web ( 54 ) in their position position during conveyance can be corrected optionally in the material removal ( 3 ) a guide ruler ( 16 ) to be ordered.

The advantage of this design of the splicer is the space-saving and short design for the splicing of tape sections for carcasses, as well as the fully automatic operation of the splicing station.

The design of the splicing tool is similar to the previously described embodiment and consists of a splicing tool above ( 7 ) and a splicing tool below ( 8th ). There are two splice heads at the top and bottom ( 10 ) arranged. The designs for the upper and lower splicing tools ( 7 / 8th ) is in each case as a splice head ( 10 ) in the form of two beveled and mutually interlocked bevel gears ( 11 ) educated. The splice head above ( 7 / 10 ) can by means of a lifting device ( 12 ) are delivered vertically corresponding to the material. The lower splice head ( 8th / 10 ) is a mirror image of the upper splice head ( 7 / 10 ) arranged and not movable in the vertical direction. The splice heads ( 10 ) are each to a driven displacement device ( 20 ) with guidance system ( 13 ) coupled. The moving device ( 20 ) runs horizontally, linearly and parallel to the imaginary splice line ( 55 ).

The course of the splice cycle corresponds to the procedure already described above. The lower splice head ( 8th / 10 ) moves during the splicing process linearly with the over-allocated splice head ( 7 / 10 ) in the direction of the web edge ends. When pulling over the strip material ( 51 + 52 ) this is compacted and thus spliced.

1.3.3 Rack stump splicer in carcass installation

This type of splice station is used in carcass cord cutting machines for the production of an endless cord made of cord material. In 34 the functional principle of the splice station with stump splicing device is shown schematically.

The 35 and 36 show the execution of a splicing station ( 1 ) for butt splices of band sections with splice angles of 90 ° ± 20 °

The splice station ( 1 ) consists of a material conveyor ( 2 ), a splicing device ( 4 ), a fulcrum ( 5 ) with imaginary splice line ( 55 ) and a material removal device ( 3 ).

The splicing device ( 4 ) consists of several splice bars ( 27 / 32 / 33 ), a basic framework ( 28 ) and a plurality of horizontally arranged splice strips ( 26 ) in the form of toothed racks. The components of the splicing device ( 4 ) are at the base frame ( 28 ) are arranged and at angle adjustment according to the splice angle ( 57 ) with adjusted. The basic frame ( 28 ) rests on a frame ( 29 ) with fulcrum ( 5 ).

The cut band sections ( 51 ) are used with the driven material conveyor ( 2 ) to the splice line ( 55 ) of the splicing device ( 4 ) and with the web edge at the imaginary splice line ( 55 ).

The 37 to 39 schematically show the operating principle for the splicing tool of the splicing device ( 4 ) by means of toothed strips ( 26 ).

The clamped strips of material are connected to each other by means of two pairs of splicing strips. The splice strips ( 26 ) are designed as toothed racks and interlock when the splice strips ( 26 ) are driven into each other. This can be done with a splice strip pair ( 26 / 32 / 33 ) horizontally in the material conveying direction against the other pair of splicing strips ( 26 / 27 / 28 ) are adjusted. The upper splice strips ( 26 ) are each attached to a vertically adjustable splice bar ( 27 / 33 ) attached. By appropriate vertical adjustment of the upper splice bars ( 27 / 33 ) is a clamping position of the band sections ( 51 / 52 ) achieved.

To splice the band sections bluntly, the one splice strip pair ( 26 / 32 / 33 ) with clamped band section ( 52 ) transversely to the material conveying direction ( 50 ) to the web edges of the first clamped band section ( 51 ) and against the other splice strip pair ( 26 / 27 / 28 ) proceed accordingly. Due to the horizontal adjustment against the material conveying direction ( 50 ), the two clamped web edges are pressed together and thus spliced.

The advantage of this design of the splice station with stump splicing device is the space-saving design and the automatic function of the splicing station. Due to the functional principle of the toothed bars, a very good blunt splice connection and high output of the machine are achieved. In addition, the angle adjustment of the butt splicer will soon change over to a different splicing angle for production.

1.3.4 Overlap splice in carcass plant

This type of splicing station is used in carcass cord cutting machines for the production of an endless belt with overlapping splice of cord material strips.

In 40 and 41 the principle of operation of the splicing station ( 1 ) for splicing angles in the range of 70 ° -110 ° shown schematically in plan view.

The splice station ( 1 ) consists of a material conveyor ( 2 ), a splicing device ( 4 ), a fulcrum ( 5 ) with imaginary splice line ( 55 ) and a material removal device ( 3 ).

The 46 shows a front view of this splice station ( 1 )

The material conveyor ( 2 ) consists of several individual conveyor belts. Between these conveyor belts ( 2 ) are high-holding devices ( 36 ) in the section area of the cutting device ( 60 / 61 ) arranged.

The material web ( 53 ) can be used in different cutting angles ( 56 ). Depending on the width of the fed material web ( 53 ) the splicing device ( 4 ) in the material conveying direction ( 50 ). For this purpose, the splicing device ( 4 ) together with the hold-up device ( 36 ) on a material conveying direction ( 50 ) adjustable frame ( 38 ) arranged. The frame ( 38 ) is for the driven splice line adjustment, the displacement of the imaginary splice line ( 55 ), on a base frame ( 40 ) in the material conveying direction ( 50 ) arranged adjustable.

The 42 to 45 show schematically simplifies the principle of operation for the procedure during the splicing process.

Sequence of a splicing process:

42 - basic position - splice flap ( 35 ) in tilted position above - hold-down also above ( 37 ) - high holder ( 36 ) in position below - strips of material ( 52 / 54 ) is in the material conveying direction ( 50 ) - upper knife ( 61 ) in position above

43 - Splice flap ( 35 ) in the tilted position above - respective hold-down ( 37 ) jams the end of the material strip with a time delay ( 52 / 54 ) - web edge is thereby at imaginary splice line ( 55 ) through the individual bands ( 2 ) in conjunction with the clamping function of the respective downholder ( 37 ) and sensors ( 49 ) - High Hold ( 36 ) in position above and takes over cut strips of material ( 51 ) - Material strips ( 52 / 54 ) clamped and positioned - upper blade ( 61 ) in cutting motion

44 - Splice flap ( 35 ) in tilted position at the top - hold down ( 37 ) clamp the material strip end - high holder ( 36 ) in position below and transfer of the cut strip of material ( 51 ) to the individual conveyor belts of the material conveyor ( 2 ) - the strip end of the cut strip of material ( 51 ) minimally overlaps the strip end of the clamped strip of material ( 52 / 54 ) - upper knife ( 61 ) in upward movement

44 - Splice flap ( 35 ) pivots and presses the two strip ends ( 51 / 52 ) - hold down ( 37 ) clamp the material strip end - high holder ( 36 ) in position - strips of material ( 52 / 54 ) clamped, positioned and spliced with cut strips of material ( 51 ) - upper knife ( 61 ) in position above

After the splicing process, the hold-downs ( 37 ) the material end ( 52 / 54 ) free and the generated material web ( 52 / 54 ) is in the material conveying direction ( 50 ) until the material end reaches the imaginary splice line again. The process starts from new.

The 47 to 50 schematically show another functional principle of a splicing station ( 1 ) for splice angles in the range of 90 °.

The function of the splicing device ( 4 ) is similar to the previously described embodiment. However, in this variant, no angle adjustment of the splice angle ( 57 ) and no adjustment of the imaginary splice line ( 55 ) in the material conveying direction ( 50 ) possible. The splice flap ( 35 ) or splice strip ( 35 ) is transverse to the material conveying direction ( 50 ) arranged. As in the previously described splicing device ( 4 ) is also the transported away material strip ( 52 / 54 ) stopped with its edge on the imaginary splice line, the material edge of the Material strip ( 52 / 54 ) and a cut strip of material ( 51 ) splices overlapping.

In both previously described splicing stations, it is possible to carry out part of the conveying path as a hand splicing station. This is a defined area, which gives the operator the opportunity to manually splice the cut strips of material. The splicing device is deactivated.

The advantage of this splice station with overlap splicing device is the space-saving design and the automatic functions of the splice station. Due to the functional principle of the high-level device in conjunction with the stop device of the splicer, a good splice connection and high output of the machine is achieved. Furthermore, the angle adjustment can be changed to another splicing angle for production shortly.

1.3.5 Overlap splice in belt system

The 51 to 54 show the design of a splice station for overlapping splices with splice angles in the range of about 40 ° -140 °.

The splice station ( 1 ) consists of a material conveyor ( 2 ), a splicing device ( 4 ), a fulcrum ( 5 ) with imaginary splice line ( 55 ) and a material removal device ( 3 ).

The components of the splicing device ( 4 ) are on a rotating frame ( 64 ) are arranged and adjusted accordingly with angle adjustment. The guide frame ( 64 ) rests on a base plate ( 65 ) with fulcrum ( 5 ).

In 55 and 56 the operating principle of the splicing device is shown simplified.

The splicing device ( 4 ) consists of a rotating frame ( 64 ), a splice strip ( 66 ), a control framework ( 74 ) with a splice flap ( 71 ) and several hold-downs ( 37 ). The splice flap ( 71 ) is in the fulcrums ( 73 ) pivotally mounted and can be pivoted with appropriate actuators down. At the control frame ( 74 ) are the splice flap ( 71 ) and the hold-downs ( 37 ) arranged. The tax framework ( 74 ) is transverse to the material conveying direction ( 50 ) adjustable.

As in the previously described splicing device ( 4 ) is also the transported away material strip ( 52 / 54 ) with its edge on the imaginary splice line with hold-downs ( 37 ) stopped and positioned. Then the end of the material strip ( 52 / 54 ) with the splice flap ( 71 ) swung down. This is the splice flap ( 71 ) provided with vacuum. The cut band section ( 51 ) is used with the driven material conveyor ( 2 ) to the splice line ( 55 ) of the splicing device ( 4 ) and with the web edge at the imaginary splice line ( 55 ) with minimal protrusion. The positional positions of the two outer edges of the strips of material ( 51 + 54 ) are determined by means of the edge detection and give the adjusting device the corresponding correction value for alignment. Then the clamped material strip ( 52 / 54 ) accordingly transversely to the material conveying direction controlled and then the tail of the strip of material ( 52 / 54 ) together with the splice flap ( 71 ) pivoted back into the working plane. Then, by lowering the splice strip ( 66 ) Splices the two overlapping web edge ends together.

The 57 to 58 show a further embodiment of a splice station for overlapping splices with splice angles in the range of about 10 ° -90 °. This type of splicing station is used in belt cord cutting systems for the production of an endless belt with larger section widths in the range greater than 1000 mm.

The splicing device ( 4 ) consists in this embodiment of a guide frame ( 9 ) with multiple splice segments ( 41 ). The components of the splicing device ( 4 ) are on the guide frame ( 9 ) are arranged and adjusted accordingly with angle adjustment. The splice segments ( 41 ) are side by side in the course of the splice line ( 55 ) arranged. The number of splice segments varies depending on the required splice angle ( 57 ) and the resulting length of the splice line ( 55 ).

The cut band sections ( 51 ) are used with the driven material conveyor ( 2 ) to the splice line ( 55 ) of the splicing device ( 4 ).

The 59 to 64 schematically show the operating principle for the splicing tool of the splicing device ( 4 ) for splice splicing using splice segments.

When overlap splicing two edges to be joined together are a short distance above each other, namely on the one hand, the trailing edge of the previously processed, spliced cord band, as well as the leading edge of the newly promoted, to be spliced Cordbandstreifens.

The splice segments ( 41 ) raise the end of the positioned web edge ( 52 / 54 ) at. To the band section ( 52 / 54 ) The splice segments ( 41 ) each with a vacuum function or with at least one magnetic element Mistake. After lifting, the band edge of the cut strip section ( 51 ) under the splice segments ( 41 ) and correspondingly at the splice line ( 55 ). The spit segments ( 41 ) are then linearly with raised web edge in the direction of the splice line ( 55 ) and thus aligned the web outer edges to each other. For this purpose, by means of a suitable web edge detection, the outer web edges of the cut tape section ( 51 ) recorded accordingly. Then it is lowered again with an actuator and the web edges of the two band sections are connected to each other with minimal overlap of the web edges. After the overlap splice, the splice segments ( 41 ) raised to the top. An optional stripping device ( 42 ) supports the release from the splice segment ( 41 ).

The advantage of this design of the splicer is the processing of different splicing angles for different section widths in a fully automatic operation of the splicing station.

1.3.6 2-axis splicer

This type of splicing station is used in cord cutting systems for the production of an endless cord made of cord material. In 65 to 68 the functional principle of the splice station with stump splicing device is shown schematically.

The 69 and 70 show the execution of a splicing station ( 1 ) for blunt splices of strip sections with splice angles of 15 ° -90 °.

The splice station ( 1 ) consists of a material conveyor ( 2 ), a splicing device ( 4 ) with imaginary splice line ( 55 ) and a material removal device ( 3 ).

The splicing device ( 4 ) consists of a vertically rotatably mounted splice head above ( 45 ), a vertically rotatably mounted splice head below ( 46 ), a splice table ( 39 ) and each splice head ( 45 / 46 ) a rotary and pivoting unit ( 43 ), which the driven vertical rotation of the respective splice head ( 45 / 46 ) takes over.

The material conveyor ( 2 ) and material removal device ( 3 ) consist of several individual conveyor belts. The cut band sections ( 51 ) are used with the driven material conveyor ( 2 ) to the splice line ( 55 ) of the splicing device ( 4 ) and positioned for splice initiation.

While the strips of material ( 51 / 52 / 54 ) in the material conveying direction ( 50 ), the splice heads ( 45 / 46 ) simultaneously transversely to the material conveying direction ( 50 ) and splice the two strips of material ( 51 / 52 / 54 ) together. The two splice heads ( 45 / 46 ) are movable relative to one another with a guidance system ( 44 ) in the management framework ( 9 ) and transversely to the material conveying direction ( 50 ) with a traversing device ( 20 ) are adjusted and positioned.

The 72 and 73 schematically show the operating principle for the splice heads ( 45 / 46 ) of the splicing device ( 4 ) by means of driven bevel gear pair ( 11 ).

The splice head ( 45 / 46 ) is in the form of two tilted and meshed bevel gears ( 11 ) educated. The respective bevel gear pair is driven and at the vertical angle of the interface ( 55 ), ie in angular position of the cut splice angle ( 57 ), at which the two tape strips ( 51 + 52 ) abutment arranged adjustable.

Via a higher-level control, the transport speeds for the travel device ( 20 ) in relation to material conveyor ( 2 ) and material removal device ( 3 ). It is moved obliquely adjusting the bevel gears transversely to the longitudinal adjustment of the strip of material.

The advantage of this embodiment of the splicing station is the compact design of the guide frame with short guide paths when processing different splicing angles and different section widths in a fully automatic operation of the splicing station.

1.3.7 Combinations of splicing devices

Depending on the machine operator and system concept, the splicing devices listed above ( 4 ) can also be arranged in combination.

This is z. Example, the arrangement in a carcass line with a lap splice for overlapping splices, arranged over the material conveyor, and with a subsequent butt splicer with racks for blunt splices the band sections.

Furthermore, z. Example, the arrangement with an overlap splicer with one or more splice segments for overlapping splices and a splicer with splicing heads for blunt splices in a belt system known.

In both examples, only one splicer is used in the production process, while the other splicer has been disabled.

This list is not exhaustive and will not be presented for the sake of clarity.

2. Plant layout options

The 74 - 77 show different layouts for complete systems, each comprising a document station. Same system components are provided here with the same reference numerals.

The remarks on the functions of the individual system components apply, although given in detail only to one figure, also for all other layout examples described in the figures.

74 shows an exemplary layout for a carcass without slitter.

An unwinding station is provided 75 from which the cord band to be processed is obtained. In the unwinding station 75 be mounted in a suitable frame, the material rolls to be processed and unwound. Here, the rubberized Cordbahn to be processed by an intermediate layer (foil, linen or the like) is separated. This intermediate layer is used to prevent the bonding of the rubberized material web. In order to realize different cutting angles, as stated, the unwinder 75 be pivoted, but this is not mandatory. There are different embodiments with respect to such a developer. Known are single unwinder, in which a roll of material can be hung. In a double unwinder with turntable are two rolls of material for hanging, one of them is processed, one of them changed. In addition, a Doppelabwickler with shuttle frame for hanging two rolls of material is known, one is processed, one of them changed. Furthermore, cassette unwinder are known in which a roll of material is hung in a cassette and the cassette is then transported into the unwinder. This list is not exhaustive.

• – Guillotine Scheren mit feststehendem Untermesser und auf und abfahrbarbarem Obermesser,
• – Rundmesserscheren mit einem feststehenden Untermesser und einen daran entlang fahrendem Rundmesser,
• – Scheren mit einem schnell rotierenden Sägemesser (ähnlich einem Kreissägenmesser).

The unwind station 75 follows a pair of scissors 77 for cutting the cord belt coming from the unwinding station. The scissors 77 is used to cut Cordbandstreifen in a defined width and a defined angle. As scissors different types are used:

• - Guillotine scissors with fixed lower blade and upper and lowerable blade,
• - Circular knife shears with a fixed lower blade and a circular blade running along it,
• - Scissors with a fast rotating saw blade (similar to a circular saw blade).

Depending on the material to be processed by the customer, different scissor versions are used. In this case, it is crucial which cord material (whether textile or steel cord) and at which angle it must be cut (system types carcass or belt), in which example a pair of scissors for a carcass plant is used.

The scissors table serves as material support 76 and is with the unwinding station 75 connected and pivots if necessary together with this. The material to be processed lies on the scissor table and is lying on the scissors 77 drawn. At the beginning of the table or above is very often a conveyor that transports the beginning of the material in the scissors, z. B. a driven conveyor roller. This is always necessary when the machine is completely emptied and the beginning of a new roll of material in the scissors 77 must be inserted, or if for pivoting the unwind the material a little way out of the scissors 77 was withdrawn.

Relevant for the scissor design is the sequence after cutting. In order to integrate the cut material into the subsequent process with just a few processing steps, further machine components are in use (belts, high holders, splicers, etc.). For this it is necessary to build as close as possible to the lower knife and the machine frame with these components. For this, the material should be moved as little as possible (inter alia drop height) in order to process it further in a cut storage position.

To promote the material through the scissors is in most cases a retraction system 78 for use. It must be driven with a gripping device (pliers) very close to the lower blade. For this purpose, a certain space is required to avoid collisions with the upper blade (or circular blade). This results in different types of scissors.

The withdrawal system 78 serves to convey the material web into the scissors 77 or pull the gripped band through the scissors 77 , Like previously described. The scissors 77 further comprises a conveyor belt which receives the cut Cordbandstreifen and him from the scissors 77 transported. Such a conveyor may be designed as a single band belt, in the form of several band straps or in the form of several band straps with an intermediate high lifting device.

The Cordbandstreifen is then on the first conveyor in the form of a band 2 a splicing device according to the invention 1 , here an overlap splicer 34 given, and fed to the actual splicing unit. This first conveyor 2 can in principle also with the conveyor, the scissors 77 is assigned, coincide. That is, that between the actual overlap splicer 34 and the pair of scissors 77 only one, based on the overlap splicer then first conveyor is located. The overlap splicer 34 serves to connect (purely mechanically, without the aid of additives) the previously cut tape strip. It is pivotable at an angle in order to process the strip material in different angles.

Optionally, another splicing device is a stump splicer form 25 shown in place of the overlap splicer 34 can be used if this type of splice is required.

The overlap splicer 34 respectively its second conveyor (or the alternative butt splicer 25 ) is an optionally provided reassurance role 79 , This is merely a driven roller containing the material coming from the splicer 34 / 25 comes, transported to the next component. In this case, the material undergoes a counterbending by the transport over the roller, by the counterbending, the material contracts in the longitudinal direction. The background is thus the elongation of the material in the longitudinal direction during processing in the splicing device according to the invention 34 / 25 to reduce. However, this role is not mandatory. During the removal is in the scissors 77 already cut the next strip of tape.

According to 74 follows then also an optional documenting device 82 , In this station, additional rubber strips, one to twelve pieces, are placed on the produced material web. The hang up can be done from above and / or from below. Furthermore, the outer edges of the material web are often bordered, ie a rubber strip is placed from the outer edge with projection and wrapped around the rubber edge to encase the exposed at the outer edge (= cut edge) cords.

In any case, provided a Aufwickelstation 84 , In this station, the material webs are again wound on spools with an intermediate layer which prevents sticking. Again, there are various embodiments, ranging from fairly simple single winder, in which the material must be cut manually and wound on a new roll, to fully automatic rewinders, in which no handling operations are necessary for the material handling.

75 shows a second layout of a carcass plant, the 74 This is the same as in contrast to 74 a slitter 80 having.

Next to the unwind station 75 , Scissors 77 , Retreat system 78 , Conveyor belt 2 and splicer 34 / 25 and the optional soothing roller 79 Here is a so-called Slitter 80 intended. This is a slitting device, ie, that in the splicer 34 / 25 produced long web is separated into two strips. This serves to increase the output of a machine, as in such an embodiment, a paper cut to two finished strips in the two winding stations provided here 84 leads. As slitter knife find among other things round knives use.

The Slitter 80 are, optionally, two documenting devices 82 downstream, but in any case two Aufwickelstationen 84 ,

The 76 shows an exemplary layout of a belt system without slitter. Components, as they are already in the layouts of 74 and 75 are provided, if provided, provided with the same reference numerals, their function is the same as for 74 and 75 described.

An unwinding station is provided 75 , which, however, is pivotable here by a significantly larger angle. The unwinder can be of any type, as previously described.

The unwind station 75 follows the scissors 77 , The scissors table serves as material support and is with the unwinding station 75 connected and swings in case of need together her.

The scissors 77 is used to cut Cordbandstreifen in a defined width and a defined angle. As a pair of scissors 77 For example, the previously described types of shears suitable for belt systems can be used.

The scissors 77 follows a withdrawal system 78 as previously described. It serves to convey the material web into the scissors 77 or pull the gripped band through the scissors 77 , Like previously described.

The Cordbandstreifen is then on the first conveyor 2 a splicer 1 / 34 , which may be designed as an overlap or butt splicer, given and fed to the actual splicer. The splicer is pivotable at a considerable angle to adjust the required splice angle. It also has a removal belt 3 on, with the spliced band of the downstream component is supplied.

Optionally, the splicing device 34 another band 81 for hand splicing, so be connected downstream for manual connection of the band sections. During this manual processing is the automatic splicer 34 out of order. Such hand splicing is required for certain Cordbandmaterialien, very narrow section widths or on customer request.

Optionally, a calming role can also be used here 79 be provided. Furthermore, also optional, is a repair tape 83 intended. If errors in the tape are detected, they can be repaired here.

According to 76 follows then also an optional documenting device 82 as previously described.

In any case, provided a Aufwickelstation 84 , which can be designed differently as described. In this station, the material webs are again wound on spools with an intermediate layer which prevents sticking.

77 finally shows a plant layout for a belt system accordingly 76 , but here is also a Slitter 80 integrated. The separation of the spliced material web carried out over this leads to the fact that in each case two Aufwickelstationen 84 are to be provided, each optionally a Belegevorrichtung 1 and / or a repair tape 83 can be upstream.

Although in all representations the band is conveyed from right to left, it is of course possible to interpret the layout in reverse, mirror-image execution, so to transport the strip from left to right. All components described as optional can be provided in different combinations together with the essential components. Therefore different layouts can be created from all described components.

LIST OF REFERENCE NUMBERS

1

splicing

2

Material conveyor

3

Material transporting device

4

splicing

5

pivot point

6

frame

7

Splicing tool above

8th

Splice tool below

9

guide frame

10

splice

11

bevel gear pair

12

lifting device

13

guidance system

14

splicing

15

angle adjustment

16

guide rule

17

Gripping device (pliers)

18

adjustment

19

Pivot point band

20

traversing

21

Sideshifts device

22

adjustment

23

guidance system

24

frame

25

Stumpfspleißeinrichtung

26

Splice strips (toothed strips)

27

Splice bars above

28

baseplate

29

frame

30

guard

31

adjustment

32

Splice bars below

33

Splice bars above

34

Überlappspleißeinrichtung

35

Spleissklappe / splicing strip

36

Hochhalter

37

Stripper plate

38

frame

39

splicing

40

base frame

41

Spleißsegment

42

scraper

43

Turn / tilt unit

44

guidance system

45

Spleiskopf above

46

Splice head down

47

Handspleißplatz

48

Measuring Wheel

49

Strip detection (eg sensor)

50

Material conveying direction

51

Material strip 1 (band section 1)

52

Material strip 2 (band section 2)

53

Material web (before cutting)

54

Material web (after splicing)

55

Splice line (imaginary)

56

cutting angle

57

splice

58

butt splice

59

lap splice

60

lower blade

61

upper blade

62

magnetic tape

63

energy chain

64

rotating frame

65

baseplate

66

splicing strip

67

magnet

68

vacuum

69

edge detection

70

fixing

71

Spleißklappe

72

adjustment

73

pivot point

74

control framework

75

uncoiling

76

material support

77

Scissors (cutting device)

78

retraction system

79

calming role

80

Slitter

81

Band for hand splicing

82

evidence station

83

repair tape

84

coiling

MB

material width

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 10119508 [0056]

Claims (1)

Splicing device for splicing cord tape strips, in particular steel cord or textile cord, comprising a splicing unit in which the leading edge of a conveyed cord strip is spliced to the trailing edge of the previously spliced cord strip in an edge-side region to form a spliced cord band, a conveyor transporting the cord strip to be spliced a conveyer device transporting away the spliced cord belt, characterized in that means are provided for aligning the leading edges of the cord band stiffener to be spliced and / or the trailing edge of the spliced cord band relative to the splice unit, and means for aligning the cord band strip and / or the splice band to be spliced spliced Cordbands is provided in a direction perpendicular to the transport direction of the conveyors.

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