Device for producing reinforcements

Abstract

Device for producing reinforcements, in particular reinforcement baskets for concrete pipes having a bell-shaped socket end, having an expansion device which has a single expansion slide, wherein the expansion slide is configured for modifying, in particular, during the production process of the reinforcement, a radial position of an assigned actuating element for a longitudinal wire of the reinforcement by way of a transmission mechanism of the expansion device. The device is characterized in that the expansion device has a mold slide, wherein an actuator drive is provided for moving the mold slide, and wherein the actuator drive for a linear movement of the mold slide in relation to the expansion slide is supported on the expansion slide.

Claims

1. A device for producing a reinforcement comprising an expansion device which has a single expansion slide, wherein the expansion slide is configured for modifying a radial position of an actuating element for a longitudinal wire of the reinforcement by way of a transmission mechanism of the expansion device, wherein the expansion device has a mold slide, wherein an actuator drive is provided for moving the mold slide, and wherein the actuator drive for a linear movement of the mold slide in relation to the expansion slide is supported on the expansion slide.

2. The device as claimed in claim 1, wherein the device has a plurality of mold slides that are positionable in a mutually independent manner.

3. The device as claimed in claim 1, wherein the expansion device has a plurality of mold slides, wherein the transmission mechanism of the expansion device has a plurality of detent elements, wherein the expansion device comprises one detent element of the plurality of detent elements, in the form of a shape imparter, wherein the shape imparter forms an entrainment element for a first detent member of one mold slide of the plurality of mold slides, wherein for each mold slide one shape imparter is present on the transmission mechanism.

4. The device as claimed in claim 3, wherein all transmission mechanisms are guided so as to be movable in relation to the expansion slide.

5. The device as claimed in claim 1, wherein the expansion slide is guided so as to be movable on the transmission mechanism, wherein a detent element which is capable of being jammed between the expansion slide and athe mold slide is fixed to the transmission mechanism.

6. The device as claimed in claim 1, wherein the expansion device has a detent element in the form of a path limiter, wherein the path limiter forms an entrainment element for a second detent face of the expansion slide, wherein the path limiter predefines a maximum spacing between a first and/or a second detent member of the mold slide and the second detent face of the expansion slide.

7. The device as claimed in claim 1, wherein the actuator drive is configured as a double-action cylinder.

8. The device as claimed in claim 1, wherein the expansion slide and the mold slide are driven by an expansion shaft of the device so as to be driven in a mutually separate manner.

9. The device as claimed in claim 1, wherein a position of a detent element along the transmission mechanism is modifiable.

10. A machine for producing a reinforcement having a device as claimed in claim 1.

11. A device for producing a reinforcement comprising an expansion device which has a single expansion slide, wherein the expansion slide is configured for modifying a radial position of an actuating element for a longitudinal wire of the reinforcement by way of a transmission mechanism of the expansion device, wherein the expansion device has a mold slide, wherein the expansion slide is guided so as to be movable on the transmission mechanism, wherein a detent element, which is capable of being jammed between the expansion slide and the mold slide, is fixed to the transmission mechanism.

12. The device as claimed in claim 11, wherein the detent element has the form of a path limiter, wherein the path limiter forms an entrainment element for a detent face of the expansion slide, and predefines a maximum spacing between one of a first detent member a second detent member of the mold slide and a detent face of the expansion slide.

13. The device as claimed in claim 11, wherein the actuator drive is configured as a double-action cylinder.

14. The device as claimed in claim 11, wherein the expansion slide and t the mold slide are driven by an expansion shaft of the device so as to be driven in a mutually separate manner.

15. The device as claimed in claim 11, wherein a position of the detent element along the transmission mechanism is modifiable.

16. A machine for producing a reinforcement having a device as claimed in claim 11.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) An exemplary embodiment will be explained in more detail by means of the schematic drawings hereunder while stating further details and advantages.

(2) FIG. 1 shows a perspective view laterally from above onto a machine for producing reinforcements, having a device according to the present invention;

(3) FIG. 2 shows a perspective view laterally from above onto the front of a reinforcement basket;

(4) FIG. 3 shows a perspective view laterally from above onto the rear of the device as per FIG. 1;

(5) FIG. 4 shows a plan view in a simplified illustration onto a cross section of a device, the cross section being parallel with a longitudinal axis of an expansion shaft of a machine; and

(6) FIGS. 5 to 11 show a schematic illustration of a cross section through a main wheel of the machine in various functional positions, the cross section being parallel with the longitudinal axis of the device and perpendicular to the longitudinal axis of the device.

DETAILED DESCRIPTION OF THE INVENTION

(7) A machine 1 for producing a reinforcement basket 10 comprises a device 2 according to the present invention, which in the region of the main wheel 3 of the machine 1 is configured on the main wheel 3. The main wheel 3 is fastened to a main frame 4, in particular, fastened so as to be positionally fixed in relation to the main frame 4. The machine 1 furthermore comprises an expansion shaft 5, an expansion block 6, and an advancing carriage 7 having an advancing wheel 8, the advancing carriage 7 being mounted so as to be relocatable in a linear manner on guide rails 9 (FIG. 1).

(8) A spoke 14 is present on the main wheel 3, an actuating element 15 being mounted on said spoke 14 so as to be displaceable along the latter in the radial direction, in a manner perpendicular to a longitudinal axis L of the expansion shaft 5. Furthermore, a wire guide tube 16 which is provided for guiding a longitudinal wire 34 of the reinforcement basket 10, in particular in a manner parallel with the longitudinal axis L, to the actuating element 15 is disposed on the actuating element 15 (FIG. 3). A welding device for welding the longitudinal wire 34 to a transverse wire 35 of the reinforcement basket 10 is disposed in the region of the actuating element 15 (welding device not illustrated, FIG. 2).

(9) The device 2 comprises an expansion slide 11, a mold slide 12, and a transmission mechanism in the form of a chain 13. The chain 13 is configured as a continuous chain, for example, that is to say that the ends of the chain 13 are interconnected. The chain 13 is guided so as to be movable by way of chain deflections 17, 18, 19a, 19b and connects the actuating element 15 to an actuating unit 20 which is composed of the mold slide 12 and the expansion slide 11. The chain 13 is fixedly connected to the actuating element 15. For reasons of clarity, a single actuating unit 20 having a chain 13 and an assigned actuating element 15 is shown in FIG. 3.

(10) FIG. 4 shows the arrangement from FIG. 3 in a simplified illustration, wherein the view is a cross section through the expansion shaft 5 and the main wheel 3, the cross section being parallel with the longitudinal axis L of the expansion shaft 5.

(11) FIGS. 5, 7, 9, and 11 show in each case two different cross sections through the device 2 in a simplified illustration, the cross sections being parallel with the expansion shaft 5. In each case three chains 13a, 13b, 13c are illustrated in each of the figures, the chains 13a, 13b, 13c comprising detent elements in the form of a shape imparter 27a, 27b, of a path limiter 26, and of guide elements 24a, 24b, 24c. For example, the shape imparters 27a, 27b have dissimilar shapes, for example, the shape imparters 27a, 27b are configured so as to be of dissimilar length along the longitudinal axis L of the expansion shaft 5. The shape imparters 27a, 27b can be mounted so as to be displaceable on the chains 13a, 13b. For example, it is also conceivable for the detent elements to be spaced apart in a positionally fixed manner along a chain 13a, 13b, 13c, and to be clamped to the chain 13a, 13b, 13c, for example.

(12) The detent elements, in particular, prior to a production of a reinforcement basket 10, are capable of being set to the respective geometry of the reinforcement basket 10. Moreover, each chain 13a, 13b, 13c is, in particular, fixedly coupled to in each case one actuating element 15a, 15b, and 15c, respectively (FIGS. 6, 8, 10).

(13) The chain 13a, 13b, 13c has a rod-shaped portion 21a, 21b, 21c. The chain 13a, 13b, 13c on the rod-shaped portion 21a, 21b, 21c is mounted on the expansion slide 11 and on the mold slide 12 so as to be movable in a direction X1 or X2 that is parallel with the longitudinal axis L of the expansion shaft 5. A guide element 24a, 24b, 24c is attached to the rod-shaped portion 21a, 21b, 21c of the chains 13a, 13b, 13c so as to be positionally fixed, in particular, so as to be parallel with the longitudinal axis L of the expansion shaft 5, between a first detent face 22 of the expansion slide 11 and a first detent member 23 of the mold slide 12. The guide element 24a, 24b, 24c is configured, for example, as an entrainment element having entrainment faces 28a, 28b, 28c, 29a, 29b, 29c for the expansion slide 11 and the mold slide 12.

(14) A second detent face 25 is present on a side opposite the first detent face 22 of the expansion slide 11. Moreover, a path limiter 26 is attached so as to be positionally fixed on the rod-shaped portion 21a, wherein the path limiter 26 is present on that side of the expansion slide 11 that faces the second detent face 25 such that the detent faces 22, 25 of the expansion slide 11 are configured between the path limiter 26 and the mold slide 12. The device 2 is advantageously configured in such a manner that a single chain 13a comprises one path limiter 26.

(15) Moreover, shape imparters 27a, 27b are disposed so as to be positionally fixed on the rod-shaped portions 21a, 21b. The shape imparters 27a, 27b in terms of the shape thereof can be configured in dissimilar sizes, for example, in particular, the shape imparters 27a, 27b are fastened to the rod-shaped portions 21a, 21b in such a manner that entrainment faces 31a, 31b of the shape imparters 27a, 27b have dissimilar spacings from the entrainment faces 28a, 28b of the guide elements 24a, 24b. If the shape imparters 27a, 27b are present so as to be displaceable on the chains 13a, 13b, the shape imparters 13a, 13b can impact on an entrainment element 36a, 36b of the chains 13a, 13b, wherein the entrainment elements 36a, 36b are present on the chains 13a, 13b so as to be positionally fixed in the direction X1, X2.

(16) The expansion slide 11 is mounted in such a manner that the expansion slide 11 by the expansion shaft 5 is drivable so as to be displaceable in a direction X1, or X2, respectively, that is parallel with the longitudinal axis L of the expansion shaft 5. The mold slide 12 is mounted on the expansion slide 11 so as to be movable in a direction X1, or X2, respectively, that is parallel with the longitudinal axis L of the expansion shaft 5. A position of the mold slide 12 relative to the expansion slide 11 is modifiable by way of an actuator drive 30 which is configured, for example, between the expansion slide 11 and the mold slide 12.

(17) Actuating elements 15a, 15b, 15c on the main wheel 3 are schematically illustrated on spokes 14a, 14b, 14c in FIGS. 6, 8, 10.

(18) The reinforcement basket for a reinforcement pipe is assembled from longitudinal wires 34 and transverse wires 35. For example, the reinforcement basket in the cross section perpendicular to a longitudinal axis can have three dissimilar main geometries. A first main geometry R1 is circular, for example, having a first radius, a second main geometry O is oval, and a third main geometry R2 is again a circular, having a second radius which is larger in relation to the first radius of the main geometry R1 (FIG. 2). The device 2 is configured for relocating actuating elements of the machine 1 in such a manner that the reinforcement basket 10 is producible as is illustrated in FIG. 2. To this end, the expansion slide 11 and the mold slide 12 are relocated on the expansion shaft 5, for example, in a manner parallel with the longitudinal axis L of the expansion shaft 5 as is illustrated in FIGS. 5, 7, 9, and 11.

(19) Actuation procedures of the expansion slide 11 and of the mold slide 12, and thus of the actuating elements 15a, 15b, 15c (FIGS. 6, 8, 10) for producing the reinforcement basket 10 on the machine 1 will be described hereunder.

(20) The mold slide 12 in an initial position (FIG. 5), optionally by way of the actuator drive 30, is moved up to the expansion slide 11 in such a manner that the mold slide 12 advantageously jams the guide elements 24a, 24b, 24c between the first detent member 23 of the mold slide 12 and the first detent face 22 of the expansion slide. The guide elements 24a, 24b, 24c in the initial position on the expansion shaft 5 all have an identical starting position S along a longitudinal axis L of the expansion shaft 5. Moreover, the chains 13a, 13b, 13c in the initial position couple to the actuating elements 15a, 15b, 15c in such a manner that the actuating elements 15a, 15b, 15c along the spokes 14a, 14b, 14c have the same spacing from the wheel axis, or have the same radius, respectively, (FIG. 6). A machine 1 in this initial position thus produces a reinforcement having this circular geometry R1.

(21) If the geometry of the reinforcement is now to be modified, for example, from the circular geometry R1 to an oval geometry O, the spacing of the mold slide 12 from the expansion slide 11 is modified by way of the actuator drive 30. This means that the position of the expansion slide 11 relative to the starting position S is not modified along the longitudinal axis L of the expansion shaft 5. By contrast, the mold slide 12, for example, by the actuator drive 30, is urged away from the expansion slide 11 in the direction X1 that is parallel with the longitudinal axis L. Depending on the spacing from the shape imparters 27a, 27b, the mold slide 12 in this movement, by way of the second detent member 32 thereof that is configured opposite the first detent member 23, after a comparatively short or comparatively long distance contacts an entrainment face 31a, 32a of the shape imparter 27a, 27b. On account thereof, the mold slide 12 in the movement thereof in the direction X1 moves the chains 13a, 13b, 13c dissimilarly far. The chain 13a in the example (FIG. 7) is conjointly moved along the entire length of the movement of the mold slide 12 in the direction X1, since the mold slide 12 by way of the second detent member 32 bears on the entrainment face 31a already in the initial position. Accordingly, the actuating element 15a modifies the position thereof along the spoke 14a toward a larger radius. The chain 15b is moved only a short distance as compared to the chain 15a. Accordingly, the radius of the actuating element 15b is somewhat enlarged. The chain 15c is not moved at all, since the mold slide 12 by way of the second detent member 32 thereof does not meet any resistance, or contact any detent, respectively. Accordingly, the radius of the actuating element 15c is likewise not modified (FIG. 8). It would also be conceivable for the device 2 to be designed in a reversed order, such that the actuating elements 15a, 15b would be moved in the opposite direction and the radius of the actuating elements 15a, 15b would be reduced.

(22) The mold slide 12 can be moved that far until the path limiter 26 by way of the detent thereof impacts against the second detent face 25 of the expansion slide 11. On account thereof, a maximum relocation path of the mold slide 12 relative to the expansion slide 11 is limited. On account thereof, a maximum difference between a radius of one actuating element and another actuating element is also predefined.

(23) Should the geometry of the reinforcement 10 in the course of the production of the reinforcement 10 be modified to a cross section having a circular geometry R2 having a larger radius, the expansion slide 11, for example, driven by the expansion shaft 5, is moved parallel with the longitudinal axis L of the expansion shaft 5 in the direction X1 toward the mold slide 12 (FIGS. 9, 11). The mold slide 12 herein maintains the position thereof relative to the starting position S on the expansion shaft 5, since a force of the shape imparters 27 that acts on the form slide 12, for example, is higher than a force which in the movement of the expansion slide 11 acts by way of the actuator drive 30 in the direction X1 on the mold slide 12, or on the shape imparters 27a, 27b, for example. The spacing between the expansion slide 11 and the mold slide 12 is thus reduced. In the movement of the expansion slide 11 in the direction X1 the expansion slide 11 by way of the first detent face 22 thereof, in a manner corresponding to the preceding movements of the chains 13a, 13bs, 13c. sooner or later contacts the entrainment faces 29a, 29b, 29c of the guide elements 24a, 24b, 24c of the chains 13a, 13b, 13c. The expansion slide 11 in the example (FIG. 7) by way of the first detent face 22 thereof already bears on the entrainment face 29c of the guide element 24c and thus moves the chain 13c along the entire displacement path of the expansion slide 11 in the direction X1. By contrast, the expansion slide 11 by way of the first detent face 22 thereof reaches the entrainment face 19a of the guide element 24a only at the end of the movement of the expansion slide 11, the chain 13a in this case thus remaining unmoved (FIGS. 9, 11). Accordingly, the actuating element 15a along the spoke 14a in this movement of the expansion slide 11 remains at the position of said actuating element 15a on the spoke 14a, and the two other actuating elements 15b, 15c are displaced to a position having the same radius as the actuating element 15a on the spokes 14b, 14c. On account thereof the circular geometry R2 having a larger radius is implemented (FIG. 10).

(24) Should the circular geometry R1 having a small radius be returned to again, the spacing between the expansion slide 11 and the mold slide 12 is retained, for example, by the actuator drive 30, such that the mold slide 12 maintains a fixed identical position relative to the expansion slide 11. The expansion slide 11, for example, driven by the expansion shaft 5, is subsequently driven back in the direction X2 that is parallel with the longitudinal axis L of the expansion shaft 5, such that the guide elements 24a, 24b, 24c are again located level with the starting position S and the actuating elements are thus likewise again located in the initial position thereof on the spokes 14a, 14b, 14c.

LIST OF REFERENCE SIGNS

(25) 1 Machine 2 Device 3 Main wheel 4 Main frame 5 Expansion shaft 6 Expansion block 7 Advancing carriage 8 Advancing wheel 9 Guide rails 10 Reinforcement basket 11 Expansion slide 12 Mold slide 13, 13a to 13c Chain 14, 14a to 14c Spoke 15, 15a to 15c Actuating element 16 Wire guide tube 17 Chain deflection 18 Chain deflection 19a, 19b Chain deflection 20 Actuator 21a to 21c Portion 22 Detent member 23 Detent face 24a to 24c Guide element 25 Detent face 26 Path limiter 27a, 27b Shape imparter 28a, 28b Entrainment face 29a, 29b Entrainment face 30 Actuator drive 31a, 31b Entrainment face 32 Detent member 33 Detent 34 Longitudinal wire 35 Transverse wire 36a, 36b Entrainment element