Device for producing a tubular container

Abstract

A device is provided for producing a tubular container which is able to be filled with granular, pulverulent, pourable and flowable materials, wherein the container can include webs manufactured from geotextile material. The device includes a displaceable frame with at least one unwindable geotextile web, wherein the frame includes a filling trough with an outlet hopper for the material, and wherein the filling trough has a conveying device for the filled material, the conveying device acting counter to the direction of movement of the frame, which, at the rear end of the filling trough, surrounds the material in an enveloping manner, in the region of the outlet hopper, by the unwindable geotextile web, as the frame is advanced, so as to form a tube.

Claims

1. A device for producing a tubular container which is able to be filled with granular, pulverulent, pourable and flowable materials, wherein the container comprises webs manufactured from geotextile material, the device comprising a displaceable frame adapted to be provided with at least one geotextile web that is unwindable, the frame comprising a filling trough, the filling trough comprising an outlet hopper for the material and a conveying device for the filled material, the conveying device being configured to convey the filled material in a direction counter to a direction of movement of the frame, wherein the conveying device is configured to surround the filled material in an enveloping manner at a rear end of the filling trough by the outlet hopper with the geotextile web as the frame is advanced so as to form a tube and to arrange edge zones of the geotextile web so that they are overlapped at a bottom of the tube for being bonded by weight of the filled material.

2. The device according to claim 1, wherein the device is adapted to be provided with an additional geotextile web that is unwindable at a front of the filling trough, the device being configured to guide the additional geotextile web within the filling trough as the frame is advanced and the filled material is conveyed in the direction counter to the direction of movement of the frame.

3. The device according to claim 2, wherein the device is configured such that due to advancement of the frame, the material on the additional geotextile web is formed into a circular cross-section within the outlet hopper by a dosing device at the outlet hopper, and, upon advancement of the frame and unwinding of the additional geotextile web, edge zones of the geotextile web are guided on an outside of walls of the hopper and of the outlet hopper such that the edge zones come to lie in an overlapping manner underneath the additional geotextile web to form the filled tube.

4. The device according to claim 2, wherein the device is configured such that the additional geotextile web cooperates with a front loading zone which comprises an unwinding axis for the additional geotextile web, and a vertical or horizontal slot at the front of the filling trough, and a guiding device for edges of the additional geotextile web disposed at inner walls of the filling trough.

5. The device according to claim 1, wherein the conveying device comprises an endless belt disposed at trough bottom or a cylinder disposed within the filling trough which discharges the material in the direction counter to the direction of movement of the frame.

6. The device according to claim 1, wherein device is configured such that the the geotextile web cooperates with a rear loading zone comprising an unwinding axis for the geotextile web, the unwinding axis being horizontal and disposed above the outlet hopper, and a guiding device for the edges and of the geotextile web, the guiding device being disposed at the outer wall of the outlet hopper.

7. The device according to claim 6, wherein the guiding device comprises two converging tracks opposite each other along the outer wall of the outlet hopper towards a discharge of the hopper, the tracks extending one above the other underneath the hopper outlet towards the discharge.

8. The device according to claim 2, wherein the tracks are configured as gates or roller holders for receiving the edge zones of the geotextile web.

9. The device according to claim 7, wherein the tracks are configured to guide stabilizers at the edge zones of the geotextile, the stabilizers including guide strips, strings, or rods.

10. The device according to claim 1, wherein the device is configured to tension a tensioning element of the geotextile web during filling.

11. The device according to claim 1, wherein the frame is provided with its own drive.

12. The device according to claim 1, wherein the frame is configured as a trailer cooperating with a traction unit.

13. The device according to claim 1, wherein the frame has an axle having balloon wheels or crawlers underneath the outlet hopper.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) An exemplary embodiment of an aspect of the invention is purely schematically shown in the drawings and is described below in greater detail. In the figures:

(2) FIG. 1 shows a perspective view of the device according to an aspect of the invention,

(3) FIG. 2 shows a side view of the device of FIG. 1,

(4) FIG. 3 shows a plan view of the device of FIG. 1,

(5) FIG. 4 shows a perspective rear view of the outlet hopper of the device of FIG. 1,

(6) FIG. 5 shows a detail view of a roller holder on the outer wall of the outlet hopper,

(7) FIG. 6 shows a detail view of the second geotextile web with an overlapping region, and

(8) FIG. 7 shows another detail view of the first geotextile web in cooperation with the second geotextile web.

DETAILED DESCRIPTION

(9) FIGS. 1, 2, and 3 show an embodiment of a device 1 for producing a tubular container 2, as indicated in FIG. 2. In this case, container 2 consists of or comprises a granular, pulverulent, pourable or flowable material which, in the example shown, is surrounded by webs 3 and 4 manufactured from geotextile material.

(10) As can best be recognized when looking at FIGS. 1 and 2 together, device 1 consists of or comprises a displaceable frame 5 having a filling trough 6 for the material. At its rear end, filling trough 6 has an outlet hopper 7 for the material, wherein, at the front end, a first loading zone 8 is provided for a first unwindable geotextile web 3, which is guided on a trough bottom 9 as frame 5 is advanced.

(11) At the rear end of filling trough 6, a second loading zone for a second unwindable geotextile web 4 is provided, surrounding the material filled onto the first unwound geotextile web 3 in an enveloping manner upon advancement to form a tube 10, as shown in FIG. 2 in a side view. Due to the advancement according to arrow direction 11, the material on the first geotextile web 3 is formed into a circular cross-section within outlet hopper 7, wherein, upon advancement of frame 5, edge zones 12 and 13 of second unwound geotextile web 4 are guided on the outside of hopper walls 14 and 15 of outlet hopper 7 such that edge zones 12 and 13 come to lie in an overlapping manner, as shown in FIG. 6, underneath first unwound geotextile web 3 with the material to form filled tube 10 according to FIG. 2 and FIG. 7. As such, according to a particularly advantageous design, as a result of the advancement, i.e. the continuous process, the material on first geotextile web 3 is able to be formed into a circular cross-section within outlet hopper 7. Here, outlet hopper 7 cooperates with a dosing device 7.1 in the form of a slider defining the diametral size of tube 10 to be formed by pushing excess material back into filling trough 6. Accordingly, in order to lay different tube diameters, the relevant widths of geotextile web 4 are then used.

(12) As can best be recognized from FIGS. 1 and 3, in this case, the front loading zone substantially consists of or comprises an unwinding axis 16 for geotextile web 3 and a vertical or horizontal slot at the front of filling trough 6, which is not shown in greater detail. As set out previously, as such, geotextile web 3 may be introduced such that it is provisioned on unwinding axis 16 in the folded state. This means that, when introduced into filling trough 6, geotextile web 3 is unfolded such that, in this case, filling trough 6 is provided with brackets or legs unfolding folded geotextile web 3 in such a manner that the respective subportions of folded geotextile web 3 are laid against the wall zones of filling trough 6, wherein a tensioning element 19 in the form of a net is deployed between edges 17 and 18 of first geotextile web 3, as is apparent from FIG. 7.

(13) When the material is then filled onto unfolded geotextile web 3 through the net, geotextile web 3 comes to lie within filling trough 6. If frame 5 is now displaced according to arrow direction 11, the material filled onto geotextile web 3 moves in the direction of outlet hopper 7, at which the rear loading device is located. In this case, the latter consists of or comprises an unwinding axis 20 for second geotextile web 4, which is horizontally disposed above outlet hopper 7, and a guiding device 21 for the edges or edge zones 12 and 13 of second geotextile web 4, which is disposed at the outer wall of outlet hopper 7.

(14) As such, guiding device 21 shown in FIGS. 4 and 5 comprises two converging tracks 22 and 23 bent opposite each other along the outer wall of outlet hopper 7 towards the discharge, which are disposed underneath the hopper outlet towards the discharge, extending one above the other, as can be seen in FIGS. 2 and 4. Guide tracks 22 and 23 are shown in the form of dashed lines here. As an example, tracks 22 and 23 may be configured as a gate for receiving the web edge. In the exemplary embodiment according to FIGS. 4 and 5 described herein, tracks 22 and 23 consist of or comprises roller holders 24, as shown in the detail view of FIG. 5 in a perspective view. As such, roller holder 24 consists of or comprises an angle section 25 at the inside of which a roller 26 is disposed. In order to ensure guidance of edge zones 12 and 13 particularly in roller holder 24, the edges of geotextile webs 3, 4 are provided with stabilizers 27 for guiding them in tracks 22 and 23 of guiding device 21, wherein these stabilizers, as shown, may be guide strips, guide strings or flexible guide rods, for example.

(15) FIGS. 6 and 7 again illustrate the forming of second geotextile web 4 with the bottom overlap of edge zones 12 and 13, wherein FIG. 7 illustrates the position of both geotextile webs 3 and 4 when joined and filled with material. Here, it becomes apparent that tensioning element 19 configured as a net is deployed in the diametral axis such that sufficient inner stability is provided in the circular cross-section of the tube and created during the forming process.

(16) According to a particularly advantageous design of an aspect of the invention shown in FIGS. 1 and 2, frame 5 is provided with a drive 28 which is designed as a crawler track here in the present exemplary embodiment. As such, the crawler track is connected to the bottom of frame 5 by a universal or ball joint so that the crawler track has a sufficient range of movement underneath frame 5 so as to ensure off-road capability. As such, the crawler track is provided with a drive so that the direction in which tube 10 is to be laid here can be determined using a control of the individual crawler chains. Another embodiment may be that frame 5 is configured as a trailer, cooperating with a traction unit, not shown herein in detail. Because it would also be conceivable that frame 5 is displaced using a tractor. In a further development of frame 5, it has an axle 30 equipped with balloon wheels 29 underneath outlet hopper 7, so that, in particular, using device 1 tubes 10 may be laid one above the other and, thanks to balloon wheels 29, a minimum load is applied to tubes 10 already laid

LIST OF REFERENCE NUMERALS

(17) 1. Device 2. Tubular container 3. Conveying device/first geotextile web 4. Second geotextile web 5. Displaceable frame 6. Filling trough 7. Outlet hopper, 7.1 Dosing device 8. Loading zone 9. Trough bottom 10. Tube 11. Arrow direction 12. Edge zones 13. Edge zones 14. Hopper wall 15. Hopper wall 16. Unwinding axis of first web 17. Edge 18. Edge 19. Tensioning element 20. Unwinding axis 21. Guiding device 22. Web 23. Web 24. Roller holder 25. Angle section 26. Roller 27. Stabilizers 28. Drive 29. Balloon wheels 30. Axle