EP3199261B1 - Device for producing reinforcements - Google Patents

Description

The invention relates to a device for producing reinforcements, in particular of reinforcing baskets for concrete pipes with bell sleeve, according to the preamble of claim 1 (see, eg DE-A-23 60 532 ), as well as a machine for producing reinforcements with such a device.

State of the art

Devices for producing reinforcements of the type described in the introduction are already known.

A known device is designed as a spreading device having a plurality of adjustable relative to each other in the axial adjustment rods, on each of which a radially adjustable guide for the adjustment of longitudinal bars of the reinforcement is articulated. The adjusting rods in turn cooperate with an adjusting plate, which limit a travel of the adjusting rods due to stops on the adjusting rod.

By suitable arrangement of the stops on the adjusting rods and an adjustment of the adjusting rods and thus an adjustment of longitudinal bars of a reinforcement, it is possible to change a shape of the reinforcement.

Purpose and advantages of the invention

The object of the invention is to provide an alternative device for producing reinforcements, in particular reinforcing baskets for concrete pipes with a bell socket.

This object is solved by the features of claim 1.

In the dependent claims advantageous and expedient embodiments of the invention are given.

The invention relates to a device for the production of reinforcements, in particular of reinforcing baskets for concrete pipes with bell sleeve, with a spreading device which has a single Spreizschieber, wherein the Spreizschieber is adapted to a radial position of a control element for a longitudinal wire of the reinforcement over a Transfer means of the spreading, in particular during the manufacturing process of the reinforcement to change.

The transmission means of the spreading device are formed for example as a drive chain and / or as a drive rod. Furthermore, the spreading device on a mold slide, wherein an actuator is provided for movement of the mold slide. The essential aspect of the invention is now to be seen in the fact that for a linear movement of the mold slide with respect to the Spreizschieber the actuator is supported on Spreizschieber.

Advantageously, the mold slide is designed such that the radial position of an associated adjusting element for a longitudinal wire of the reinforcement via a transfer means of the spreading device is variable by the mold slide, in particular during the manufacturing process of the reinforcement.

As a result, a change in geometry of the reinforcement, in particular of the reinforcing cage, can be realized, advantageously a change in geometry of a cross section of the reinforcement, e.g. from round to oval or vice versa.

The expansion slide and / or the mold slide is designed, for example, to change a radial position of an associated actuating element along a spoke of a spreader wheel for a longitudinal wire of the reinforcement. Advantageously, the expansion slide is moved via a first actuator and the mold slide via a second actuator.

A spreader wheel, for example a main wheel and / or a feed wheel, comprises e.g. between 4 and 48 spokes, between 8 and 40 spokes, between 12 and 36 spokes, between 16 and 32 spokes or between 20 and 28 spokes, especially 24 spokes.

For example, the Spreizschieber and the mold slide along the transmission means for moving the same adjusting element are formed, in particular via a same transmission means. For example, the Spreizschieber and the mold slide with the transmission means are fixed, in particular connected in a fixed position.

Advantageously, the mold slide is relatively movable to the Spreizschieber on Spreizschieber, in particular formed on the Spreizschieber. Preferably, a mold slide forms an actuating unit with the expansion slide Control element or with a transmission means. For example, a plurality of actuators are present on a device, in particular, an actuating unit and / or a mold slide is provided for each actuator each spoke of the spreader.

Preferably, the device, in particular the adjusting unit is designed such that the expansion slide and the mold slide are connected in series one behind the other.

Advantageously, the actuator is designed as a hydraulic cylinder, as a pneumatic cylinder, as an electric motor and / or as a spindle drive. In particular, a movement of a mold slide by the actuator is decoupled from a movement of the expansion slide and / or the mold slide driven by the expansion shaft.

Another advantageous aspect of the device is that the device has a plurality of independently positionable mold slide.

As a result, any geometry of the cross section of the reinforcement can be realized. Thus, the device can form the cross-section of the reinforcement round, oval, rectangular, square or polygonal by the independently positionable mold slide.

Preferably, the mold slides are independently movable relative to the expansion slide. For example, each mold slide has its own actuator. It is also conceivable that all mold slides are coupled together and / or a single mold slide is present. It is also advantageous that all mold slides are movable by a single actuator relative to the expansion slide. Advantageously, a mold slide is formed on the device such that by changing a position of the mold slide relative to the expansion slide a radial Position of the associated actuating element along a spoke relative to a radial position of a further actuating element along a further spoke, in particular during the manufacturing process of the reinforcement is changeable.

Another advantageous idea of the invention is that the spreading device comprises a plurality of mold slides, wherein the transmission means of the spreading device comprises a plurality of stop elements, wherein the spreading device comprises a stop element in the form of a former, wherein the former forms a driver for a first stop member of a mold slide, and wherein in particular for each mold slide a former is present on the transmission means.

As a result, for example, a maximum difference of a radial position of an actuating element can be predetermined to a further radial position of a further adjusting element. Here, by difference of the radial positions, a difference of a distance of an actuating element from a rotation axis of the expansion shaft to a further distance of a further adjusting element to the axis of rotation of the expansion shaft is understood. In this way, a maximum distance of a greatest distance to a rotation axis of the spreader wheel at a smallest distance to a rotation axis of the spreader wheel of a cross section of the reinforcement during production can be predetermined.

It is conceivable that the actuator comprises the former. Advantageously, the former is positionally fixed to the transmission means.

Another advantageous proposal of the invention is that all transmission means are movably guided with respect to the expansion slide.

Advantageously, the expansion slide and / or the coupled Form slide exclusively via a stop element with the transmission means. In particular, the Spreizschieber and / or the mold slide is movable relative to the transfer means positionable. For example, a transmission means is movably guided on the expansion slide and / or on a mold slide. As a result, the expansion slide and / or the mold slide, for example, couple exclusively with a setting process of the associated actuating element with a transmission means and / or with a stop element of a transmission means.

Another preferred idea of the invention is that the spreading device has a mold slide, wherein the expansion slide is movably guided on the transmission means, wherein a stop element is fixed to the transmission means, which can be clamped between the expansion slide and a mold slide.

Advantageously, the einklemmbare stop element is designed as a guide element. In particular, at least two guide elements are provided, each guide element can be clamped in each case between the Spreizschieber and a mold slide. As a result, the guide element forms a driver for a first stop surface of the expansion element and for a second stop member of the mold slide. The second stop member of the mold slide is preferably arranged opposite the first stop member.

For example, a stop element positionally fixed to the transmission means available. In particular, the expansion slide and a mold slide couple via a stop element with the transmission means. Advantageously, a single mold slide couples via a single stop element with one or more transmission means, preferably with a drive chain or a drive rod.

It is also conceivable that an actuator is a guide element includes. For example, in each case a second cylinder chamber of a cylinder of the actuator is designed such that the cylinder, in particular the cylinder chamber forms the guide element and / or the driver.

Advantageously, it also proves that the spreading device has a stop element in the form of a Wegbegrenzers, the Wegbegrenzer forms a driver for a second stop surface of the Spreizschiebers, the Wegbegrenzer specifies a maximum distance between a first stop member of the mold slide and the second stop surface of the Spreizschiebers.

The travel limiter in particular provides a maximum distance between the first stop member of the mold slide on the former and the second stop surface of the expansion slide. By this distance, a maximum radial position difference of the adjusting elements is predetermined to each other. Advantageously, the spreading device comprises a single travel limiter. It is also conceivable that an actuator has a Wegbegrenzer.

Preferably, the two abutment surfaces of the expansion element are present opposite to the expansion element.

Alternatively, the actuator is designed as a double-acting cylinder. The double-acting cylinder is e.g. designed as a hydraulic cylinder or as a pneumatic cylinder. It is conceivable that the double-acting cylinder comprises the former. For example, a stroke length of a first cylinder chamber of the cylinders is e.g. configured differently to each other, that by the stroke lengths of the cylinder, a maximum difference of a radial position of an actuating element to a further radial position of a further adjusting element can be predetermined.

Moreover, it is advantageous that the expansion slide and a Form slide are driven by a Spreizwelle the device in particular separately from each other.

Advantageously, the expansion shaft can form the actuator. The expansion slide and the mold slide can be present on the expansion shaft in such a way that the expansion shaft can move the mold slide and the expansion slide separately from one another.

It is further proposed that a position of a stop element along the transfer means is changeable.

For example, a position of a former, a Wegbegrenzers and / or a guide element is variable, in particular along a drive chain. Advantageously, a distance between each of a former and a guide element along the transfer means is changeable. Preferably, a distance between in each case a guide element and a Wegbegrenzer along the transmission means is constant and unchangeable.

For example, a first distance of a first former to a first guide element along a first drive chain is not equal to a second distance of a second former to a second guide element along a second drive chain. As a result, a change of shape of the reinforcement cage is e.g. from round to oval or vice versa in the assembled state of the device on the machine feasible. However, it is also conceivable that all distances between the formers and the guide elements are the same. Thereby, a change in size of the reinforcing cage shape, e.g. the reinforcement cage diameter can be realized.

Advantageously, a distance between the guide elements and a Wegbegrenzer is the same. In particular, a first distance of a first guide element to a first travel limiter along a first drive chain is the same a second distance of a second guide element to a second Wegbegrenzer along a second drive chain. In this way, a maximum distance of a radial position of a first actuating element to a radial position of a second actuating element can be predetermined.

Description of the embodiment

An embodiment will be explained in more detail with reference to the following schematic drawings, indicating further details and advantages.

Figur 1

eine perspektivische Ansicht von seitlich oben auf eine Maschine zur Herstellung von Bewehrungen mit einer erfindungsgemäßen Vorrichtung,

Figur 2

eine perspektivische Ansicht von seitlich vorne oben auf einen Bewehrungskorb,

Figur 3

eine perspektivische Ansicht von seitlich hinten oben auf die Vorrichtung nach Figur 1,

Figur 4

eine Draufsicht in vereinfachter Darstellung auf einen Querschnitt, parallel zu einer Längsachse einer Spreizwelle einer Maschine, einer Vorrichtung und

Figuren 5 bis 11

eine schematische Darstellung auf einen Querschnitt parallel zur Längsachse der Vorrichtung und senkrecht zur Längsachse der Vorrichtung durch ein Hauptrad der Maschine in unterschiedlichen Funktionspositionen.

Show it:

FIG. 1

a perspective view from the side on top of a machine for producing reinforcements with a device according to the invention,

FIG. 2

a perspective view from the front side on top of a reinforcement cage,

FIG. 3

a perspective view from the rear side on top of the device according to FIG. 1 .

FIG. 4

a plan view in a simplified representation of a cross section, parallel to a longitudinal axis of a spreader shaft of a machine, a device and

FIGS. 5 to 11

a schematic representation of a cross section parallel to the longitudinal axis of the device and perpendicular to the longitudinal axis of the device by a main wheel of the machine in different functional positions.

A machine 1 for producing a reinforcing cage 10 comprises a device 2 according to the invention, which is formed on the main wheel 3 in the region of a main wheel 3 of the machine 1 is. The main wheel 3 is fixed to a main frame 4, in particular fixed in position to the main frame 4. Furthermore, the machine 1 comprises a spreading shaft 5, a spreader 6 and a feed carriage 7 with a feed wheel 8, which is mounted linearly movable on guide rails 9 ( FIG. 1 ).

At the main wheel 3, a spoke 14 is present, along which an adjusting element 15 is mounted displaceably in the radial direction, perpendicular to a longitudinal axis L of the expansion shaft 5. Furthermore, a wire guide tube 16 is arranged on the adjusting element 15, which is intended to guide a longitudinal wire 34 of the reinforcing cage 10, in particular parallel to the longitudinal axis L, to the actuating element 15 ( FIG. 3 ). In the region of the actuating element 15, a welding device for welding the longitudinal wire 34 with a transverse wire 35 of the reinforcing cage 10 is arranged (welding device not shown, FIG. 2 ).

The device 2 comprises a Spreizschieber 11, a mold slide 12 and a transmission means in the form of a chain 13. The chain 13 is formed for example as an endless chain, ie ends of the chain 13 are connected together. The chain 13 is movably guided via chain deflections 17, 18, 19 a, 19 b and connects the adjusting element 15 with an actuating unit 20, which consists of the mold slide 12 and the expansion slide 11. The chain 13 is fixedly connected to the actuating element 15. For clarity, is in FIG. 3 a single actuator 20 with chain 13 and associated actuator 15 is shown.

FIG. 4 shows the arrangement FIG. 3 in a simplified representation, wherein the view is a cross section parallel to the longitudinal axis L of the expansion shaft 5 through the spreader shaft 5 and the main wheel 3.

FIGS. 5, 7 . 9 and 11 show two different cross sections parallel to the expansion shaft 5 through the device 2 in a simplified representation. In each of the figures, three chains 13a, 13b, 13c are respectively shown, which Stop elements in the form of a former 27a, 27b, a Wegbegrenzers 26 and guide elements 24a, 24b, 24c include. For example, the shapers 27a, 27b have different shapes, eg, the shapers 27a, 27b are formed to have different lengths along the longitudinal axis L of the straddle shaft 5. The shapers 27a, 27b can be displaceably mounted on the chains 13a, 13b. It is also conceivable that the stop elements, for example, along a chain 13a, 13b, 13c are fixed in position fixed, for example, to the chain 13a, 13b, 13c are clamped.

In particular, the stop elements can be adjusted to the corresponding geometry of the reinforcement cage 10 prior to production of a reinforcement cage 10. In addition, each chain 13a, 13b, 13c is in particular firmly coupled to an actuating element 15a, 15b or 15c ( FIGS. 6, 8 . 10 ).

The chain 13a, 13b, 13c has a rod-shaped portion 21a, 21b, 21c. On the rod-shaped portion 21a, 21b, 21c, the chain 13a, 13b, 13c is movably mounted in a parallel direction X1 or X2 to the longitudinal axis L of the expansion shaft 5 on the spreader 11 and on the form slide 12. On the rod-shaped portion 21a, 21b, 21c of the chain 13a, 13b, 13c is between a first stop surface 22 of the Spreizschiebers 11 and a first stop member 23 of the mold slide 12, a guide element 24a, 24b, 24c position fixed in particular parallel to the longitudinal axis L of the expansion shaft 5 to the Chains 13a, 13b, 13c attached. The guide member 24a, 24b, 24c is e.g. as a driver with driving surfaces 28a, 28b, 28c, 29a, 29b, 29c for the expansion slide 11 and the mold slide 12 is formed.

At one of the first stop surface 22 of the Spreizschiebers 11 opposite side, a second stop surface 25 is present. On the rod-shaped portion 21a also a Wegbegrenzer 26 is mounted fixed in position, wherein this on the, the second stop surface 25 facing side of the Spreizschiebers 11 is present, so that the abutment surfaces 22, 25 of the expansion slide 11 are formed between the Wegbegrenzer 26 and the mold slide 12. Advantageously, the device 2 is designed such that a single chain 13a includes a travel limiter 26.

In addition, on the rod-shaped sections 21a, 21b form sensor 27a, 27b arranged fixed in position. The formers 27a, 27b may be formed differently in size, for example, in particular, the formers 27a, 27b attached to the rod-shaped portions 21a, 21b that driving surfaces 31a, 31b of the formers 27a, 27b different distances to the driving surfaces 28a, 28b the guide elements 24a, 24b have. If the shapers 27a, 27b are displaceably provided on the chains 13a, 13b, the shapers 27a, 27b can abut on a carrier element 36a, 36b of the chains 13a, 13b, the carrier elements 36a, 36b being fixed in position in the direction X1, X2 against the chains 13a , 13b are present.

The expansion slide 11 is mounted such that it can be driven in a displaceable manner by the expansion shaft 5 in a direction X1 or X2 parallel to the longitudinal axis L of the expansion shaft 5. The mold slide 12 is mounted in a direction X1 or X2 parallel to the longitudinal axis L of the expansion shaft 5 movable on the expansion slide 11. Via an actuator 30, which is formed between the Spreizschieber 11 and the mold slide 12, a position of the mold slide 12 relative to the Spreizschieber 11 is variable.

In the FIGS. 6, 8 . 10 are schematically actuating elements 15a, 15b, 15c on the main wheel 3 on spokes 14a, 14b, 14c shown.

The reinforcing cage 10 for a reinforcing tube is composed of longitudinal wires 34 and transverse wires 35. For example, the reinforcement cage can have three different main geometries in cross-section perpendicular to a longitudinal axis. For example, a first main geometry R1 is circular with a first radius, a second main geometry O is oval and a third main geometry R2 is again circular with a second radius which is larger in relation to the first radius of the main geometry R1 ( FIG. 2 ). The device 2 is designed to move adjusting elements of the machine 1 in such a way that the reinforcing cage 10, as in FIG FIG. 2 can be produced shown. For this purpose, the Spreizschieber 11 and the mold slide 12, for example, as in the FIGS. 5, 7 . 9 and 11 represented, parallel to a longitudinal axis L of the expansion shaft 5 on the expansion shaft 5 method.

In the following, adjusting operations of the expansion slide 11 and of the mold slide 12 and thus of the adjusting elements 15a, 15b, 15c (FIG. FIGS. 6, 8 . 10 ) for making the reinforcement cage 10 on the machine 1:
In a starting position ( FIG. 5 ) is the mold slide 12 so moved up to the Spreizschieber 11, via the actuator 30 so that the mold slide 12 advantageously clamps the guide elements 24a, 24b, 24c between its first stop member 23 and the first stop surface 22 of the Spreizschiebers. The guide elements 24a, 24b, 24c have in the starting position all a same starting position S along a longitudinal axis L of the spreader shaft 5 on the spreader shaft 5. In the initial position, moreover, the chains 13a, 13b, 13c couple with the actuating elements 15a, 15b, 15c, the adjusting elements 15a, 15b, 15c have the same distance to the wheel axis or the same radius along the spokes 14a, 14b, 14c ( FIG. 6 ). In this initial position, a machine 1 thus produces a reinforcement with the circular geometry R1.

If one now wants to change the geometry of the reinforcement, for example from the circular geometry R1 to an oval geometry O, the distance between the mold slide 12 and the expansion slide 11 is changed via the actuator 30. This means that the expansion slide 11 changes its position relative to the starting position S. along the longitudinal axis L of the expansion shaft. 5 Not. In contrast, the mold slide 12 is pushed away in the direction X1 parallel to the longitudinal axis L by the expansion slide 11 by the actuator 30. Depending on the distance to the formers 27a, 27b, the mold slide 12 strikes a driving face 31a, 32a of the shaping elements 27a, 27b in this movement after a shorter or longer travel distance with its second stop element 32 formed opposite the first stop element 23. As a result, the mold slide 12 moves the chains 13a, 13b, 13c differently as it moves in the direction X1. For example ( FIG. 7 ), the chain 13a is moved along the full movement length of the mold slide 12 in the direction X1, since the mold slide 12 is already in the starting position with its second stop member 32 abuts the driving surface 31a. Accordingly, the actuator 15a changes its position along the spoke 14a toward a larger radius. The chain 15b is moved very short compared to the chain 15a. Accordingly, the radius of the control element 15b increases slightly. The chain 15c is not moved at all, since the mold slide 12 with its second stop member 32 meets no resistance or attack. Accordingly, the radius of the actuating element 15c likewise does not change ( FIG. 8 ). It would also be conceivable that the device 2 is designed turned over, so that the adjusting elements 15a, 15b would be moved in the opposite direction and would reduce the radius of the adjusting elements 15a, 15b.

The mold slide 12 can be moved until the Wegbegrenzer 26 abuts with its stop against the second stop surface 25 of the Speizschiebers 11. As a result, a maximum travel of the mold slide 12 is limited relative to the Spreizschieber 11. As a result, a maximum difference of a radius of an actuating element is set to a further actuator.

If, during the course of the production of the reinforcement 10, one wishes to have the geometry of the reinforcement 10 on a cross-section with a circular geometry R2 with a larger radius change, one moves the Spreizschieber 11, for example, driven by the Spreizwelle 5, parallel to the longitudinal axis L of the spreader 5 in the direction of X1 on the mold slide 12 to ( FIGS. 9, 11 ). The mold slide 12 maintains its position relative to the starting position S on the expansion shaft 5, since, for example, a force of the formers 27a, 27b on the mold slide 12 is higher than, for example, a force which, via the actuator 30 during the movement of the expansion slide 11 in Direction X1 on the mold slide 12 and on the shapers 27a, 27b acts. The distance between Spreizschieber 11 and mold slide 12 is thus reduced. During the movement of the expansion slide 11 in the direction X1, the expansion slide 11 with its first stop surface 22 corresponding to the preceding movements of the chains 13a, 13b, 13c sooner or later strikes the driving surfaces 29a, 29b, 29c of the guide elements 24a, 24b, 24c of the chains 13a , 13b, 13c. For example ( FIG. 7 ) is the Spreizschieber 11 with its first stop surface 22 on the driving surface 29c of the guide member 24c already on and thus moves the chain 13c along its entire displacement in the direction X1. By contrast, the expansion slide 11 with its first stop face 22 only at the end of its movement reaches the driving face 19a of the guide element 24a, with which the chain 13a remains unmoved in this case ( FIG. 9, 11 ). Accordingly, the actuator 15a remains along the spoke 14a in this movement of the Spreizschiebers 11 on its position on the spoke 14a and the other two adjusting elements 15b, 15c are moved to a position with the same radius as the actuator 15a on the spokes 14b, 14c. As a result, the circular geometry R2 is realized with a larger radius ( FIG. 10 ).

If one now wishes to return again to the circular geometry R1 with a small radius, the distance between the expansion slide 11 and the mold slide 12 is held by the actuator 30, for example, so that the mold slide 12 maintains a fixed, identical position relative to the expansion slide 11. Subsequently, the Spreizschieber 11, for example driven by the expansion shaft 5 in the direction X2 parallel to the longitudinal axis L of the expansion shaft 5 is moved back so that the guide elements 24a, 24b, 24c are again at the height of the starting position S and the adjusting elements thus also back to their original position on the spokes 14a, 14b, 14c are located.

LIST OF REFERENCE NUMBERS

1

machine

2

contraption

3

main wheel

4

main frame

5

spreadshaft

6

Spreizbock

7

feed carriage

8th

feed gear

9

guide rails

10

reinforcing cage

11

Spreizschieber

12

shape shifter

13, 13a to 13c

Chain

14, 14a to 14c

spoke

15, 15a to 15c

actuator

16

Wire guide tube

17

chain Reverse

18

chain Reverse

19a, 19b

chain Reverse

20

actuator

21a to 21c

section

22

stop member

23

stop surface

24a to 24c

guide element

25

stop surface

26

travel limiters

27a, 27b

shaper

28a, 28b

drive surface

29a, 29b

drive surface

30

actuator

31a, 31b

drive surface

32

stop member

33

attack

34

longitudinal wire

35

cross wire

36a, 36b

driving element

Claims (10)

1. Device (2) for producing reinforcements, in particular reinforcement baskets (10) for concrete pipes having bell-shaped ends, comprising an expander device (20), which comprises a single expander slide (11), wherein the expander slide (11) is designed to change a radial position of an adjusting element (15, 15a, 15b, 15c) for a longitudinal wire (34) of the reinforcement (10) via a transmission means (13, 13a, 13b, 13c) of the expander device (20), in particular during the production process of the reinforcement (10),
   wherein the expander device (20) comprises a form slide (12), wherein for moving the form slide (12) an actuator (30) is provided, characterised in that for a linear movement of the form slide (12) relative to the expander slide (11) the actuator (30) is supported on the expander slide (11).
2. Device (2) according to claim 1, characterised in that the device (2) comprises a plurality of form slides (12) which can be positioned independently of one another.
3. Device (2) according to claim 1, characterised in that the transmission means (13, 13a, 13b, 13c) of the expander device (20) comprise a plurality of stop elements, wherein the expander device (20) comprises a stop element in the form of a shaper (27a, 27b), wherein the shaper (27a, 27b) forms a driver for a first stop element (22) of a form slide (12), and wherein for each form slide (12) a shaper (27a, 27b) is provided on the transmission means (13, 13a, 13b, 13c).
4. Device (2) according to any of claims 1 to 3, characterised in that all of the transmission means (13, 13a, 13b, 13c) are guided movably relative to the expander slide (11).
5. Device (2) according to any of claims 1 to 4, characterised in that the expander slide (11) is guided movably on the transmission means (13, 13a, 13b, 13c), wherein a stop element (24a, 24b, 24c) is fixed on the transmission means (13, 13a, 13b, 13c), which can be clamped between the expander slide (11) and a form slide (12).
6. Device (2) according to any of the preceding claims, characterised in that the expander device (20) comprises a stop element in the form of a delimiter (26), wherein the delimiter (26) forms a driver (33) for a second stop surface (25) of the expander slide (11), wherein the delimiter (26) determines a maximum distance between a first and/or a second stop element (22, 32) of the form slide (12) and the second stop surface (25) of the expander slide (11).
7. Device (2) according to any of the preceding claims, characterised in that the actuator (30) is designed as a double-acting cylinder.
8. Device (2) according to any of the preceding claims, characterised in that the expander slide (11) and a form slide (12) are driven, in particular separately from one another, by an expanding shaft (5) of the device (2).
9. Device (2) according to any of the preceding claims, characterised in that a position of a stop element (24a, 24b, 24c, 26, 27a, 27b) can be changed along the transmission means (13, 13a, 13b, 13c).
10. Machine (1) for producing reinforcements (10) comprising a device (2), according to any of the preceding claims.

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