Abstract
A conveying device for conveying a pasty mass in the manufacture of insulating glass includes a carrier for a cylindrical container with pasty mass. A follow-up plate is arranged above the carrier and is vertically displaceable for placing on the pasty mass. A conveyor line is connected to the follow-up plate for further transport of the pasty mass. The follow-up plate has an underside and at least an outlet opening arranged in the follow-up plate for connection with the conveyor line. On the underside several downwardly projecting projections are arranged around the outlet opening which are configured to be immersed in the pasty mass. At least one of the projections is formed as a rib extending radially outwards along the underside of the follow-up plate.
Claims
1. A follow-up plate configured for placing on a pasty mass in a conveying device for conveying the pasty mass in the manufacture of insulating glass, the follow-up plate comprising: an underside and at least one outlet opening; wherein the at least one outlet opening is arranged in the follow-up plate and is configured to be connected to a conveyor line; wherein several downwardly projecting projections are arranged on the underside of the follow-up plate around the at least one outlet opening; wherein said projections are configured to be immersed in the pasty mass; and wherein at least one of the projections is formed as a rib extending radially outwards in relation to the outlet opening along the underside of the follow-up plate.
2. The follow-up plate according to claim 1, wherein the follow-up plate comprises several outlet openings.
3. The follow-up plate according to claim 1, wherein only one outlet opening is arranged centrally in the follow-up plate.
4. The follow-up plate according to claim 1, wherein a heating element is arranged in the rib.
5. The follow-up plate according to claim 1, wherein the rib has a width (B, B1, B2) measured in circumferential direction around the outlet opening which is smaller at a location (B1) near the outlet opening than at a location (B2) further away from the outlet opening.
6. The follow-up plate according to claim 1, which comprises several ribs each with a length (L, L1, L2) measured radial to the outlet opening, wherein one of the ribs has a smaller length (L2) and one of the ribs has a larger length (L1).
7. The follow-up plate according to claim 6, wherein the rib of smaller length (L2) has a greater distance (A2) to the outlet opening than the rib of greater length (L1).
8. The follow-up plate according to claim 6, wherein a rib of greater length (L1) is arranged between two ribs of smaller length (L2).
9. The follow-up plate according to claim 1, which comprises two adjacent ribs and a space arranged between the two adjacent ribs, wherein the space has a height (H, H1, H2) measured in vertical direction, which is greater at a location (H1) near the outlet opening than at a location further away from the outlet opening.
10. The follow-up plate according to claim 1, which comprises two adjacent ribs and a space arranged between the two adjacent ribs, wherein the space arranged between two adjacent ribs has a width (Z, Z1, Z2) measured in circumferential direction around the outlet opening which is smaller at a location (Z1) near the outlet opening than at a location (Z2) further away from the outlet opening.
11. The follow-up plate according to claim 1, which comprises two adjacent ribs and a space arranged between the two adjacent ribs, wherein the space has a height (H, H1, H2) measured in vertical direction, which is greater at a location (H1) near the outlet opening than at a location further away from the outlet opening, wherein the space arranged between two adjacent ribs has a width (Z, Z1, Z2) measured in circumferential direction around the outlet opening which is smaller at a location (Z1) near the outlet opening than at a location (Z2) further away from the outlet opening, and wherein a cross-sectional area (Z*H) of the space, which is formed as a product from its width (Z) and its height (H), is larger at a location near the outlet opening than at a location further away from the outlet opening.
12. The conveying device for conveying the pasty mass in the manufacture of insulating glass comprising a carrier for a cylindrical container containing pasty mass, the follow-up plate arranged above the carrier and being vertically displaceable for placing on the pasty mass, and the conveyor line connected to the follow-up plate for further transport of the pasty mass, wherein the follow-up plate is formed according to claim 1.
13. The conveying device according to claim 12, wherein a heat insulation is arranged on the upper side of the follow-up plate.
14. The conveying device according to claim 12, which comprises a support jacket configured to be mounted externally on the cylindrical container, wherein at least a circumferential section of the support jacket is formed of a mesh.
15. The conveying device according to claim 14, wherein the mesh is a woven fabric.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Further details and advantages of the invention are explained by embodiments of the invention with reference to the accompanying drawings, and identical and equivalent components are provided therein with the same reference numerals. In such drawings:
[0026] FIG. 1 shows a perspective view on a simplified conveying device according to the present invention;
[0027] FIG. 2 shows a perspective view on the underside of a first embodiment of a follow-up plate according to the invention;
[0028] FIG. 3 shows a view from below on the follow-up plate of FIG. 2;
[0029] FIG. 4 shows a vertical section through the follow-up plate along the section IV-IV of FIG. 3;
[0030] FIG. 5 shows a diagonal view on the vertical section of FIG. 4;
[0031] FIG. 6 shows a view from below on a second embodiment of a follow-up plate according to the invention;
[0032] FIG. 7 shows a view from below on a third embodiment of a follow-up plate according to the invention;
[0033] FIG. 8 shows a view from below on a fourth embodiment of a follow-up plate according to the invention;
[0034] FIG. 9 shows a diagonal view similar to FIG. 5 on a vertical section through the follow-up plate of FIG. 8;
[0035] FIG. 10 shows a diagonal view from below on the follow-up plate of FIG. 8;
[0036] FIG. 11 shows a schematic diagonal view of a support jacket for the conveying device of FIG. 1;
[0037] FIG. 12 shows a view from below on a fifth embodiment of a follow-up plate according to the invention;
[0038] FIG. 13 shows a vertical section through the follow-up plate along the section XIII-XIII of FIG. 12.
DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
[0039] FIG. 1 shows a conveying device 1 according to the invention. It contains a carrier 2 for a cylindrical container 3 with pasty mass 4. The carrier 2 is designed as a carrier plate on which the container 3, which is open at the top, is placed. Two hydraulic cylinders 5 are attached to the carrier 2. The cylinders 5 each have a piston rod 6 which are connected to each other via a central crossbeam 8. A follow-up plate 9 is attached to the bottom of the crossbeam 8 via two vertical rods 10. By retracting the piston rods 6 into the hydraulic cylinders 5, the follow-up plate 9 is placed on the pasty mass 4 located in the container 3, see FIG. 4. By further retracting the piston rods 6, the pasty mass 4 is pressed through an outlet opening 12 in the follow-up plate 9 into a conveyor line 14 and/or into a pump 13 which is located above the follow-up plate 9 and conveys the pasty mass 4 further. The conveying device 1 is part of a system for manufacturing insulating glass not shown. The conveyor line 14 conveys the pasty mass 4 further to an applicator device in a manner known per se, as is known for example from EP 0 171 309 A1 or DE 10 2007 051 610 A1. The conveying device 1 has a control device 15 by means of which the cylinders 5 and the pump 13 can be controlled. A support jacket 20 is arranged around the container 3. The support jacket 20, see also FIG. 11, stabilizes the container 3 when the follow-up plate 9 is pulled into the container 3 by the cylinders 5. A circumferential section of the support jacket 20 is formed from a wire fabric 21. The wire fabric 21 can, for example, comprise wires having a diameter of from 0.4 mm to 2.0 mm, in particular, from 0.5 mm to 1.0 mm. The wires extending in the circumferential direction of the support jacket 20 are thinner than the wires of the wire fabric 21 extending in the longitudinal direction of the support jacket. This allows the wire fabric to fit very snugly against the outer circumference of the container 3. The wire fabric 21 is attached to bars 22, to which three quick-release fasteners 23 are attached. In order to place the support jacket 20 on a container 3, the quick-release fasteners 23 are first opened. Then, due to the flexibility of the wire fabric 21, the two strips 22 can be moved slightly away from each other so that the diameter of the support jacket 20 increases. The support jacket 20 is placed around a new, full container 3. Subsequently the quick-release fasteners 23 are closed again. This reduces the circumference of the support jacket 20 and the support jacket 20 tightens around the outer circumference of the container 3, stabilizing it. Due to the flexibility of the wire fabric 21 and its light weight, the support jacket 20 can be handled very easily by one system operator alone.
[0040] The embodiments of the follow-up plate 9 shown in FIGS. 2 to 10 and 12 to 13 each have an upper side 30, an underside 31 and a circumferential surface 32 extending between the upper side 30 and the underside 31. A seal can be arranged on the circumferential surface 32 in a manner not shown but known per se, which seals the follow-up plate 9 to the wall of the container 3. The follow-up plate 9 has several downwardly projecting projections in the form of ribs 33 on its underside 31. The ribs 33 are arranged around the outlet opening 12 and are configured to be immersed in the pasty mass 4. When the piston rods 6 are retracted, the ribs 33 are pressed into the pasty mass 4 from above. The ribs 33 immerse in the pasty mass 4. The pasty mass 4 flows along the underside 31 past the ribs 33 and is pressed out of the container 3 through the outlet opening 12. The follow-up plate 9 contains a heating device 36 with several electrical heating elements 37, see FIG. 4. A heating element 37 is arranged in one of the ribs 33. A thermal insulation 38 is arranged on the upper side 30 of the follow-up plate 9. In an embodiment not shown, a thermal insulation can be arranged around the wire mesh 21 of the support jacket 20. The heat loss can be reduced by the thermal insulation 38. Unwanted cooling of a preheated container 3 and/or losses of the heat introduced by the heating device 36 can thus be reduced.
[0041] The ribs 33 have a width B measured in circumferential direction around the outlet opening 12 and a length L measured radially to the outlet opening 12, see FIGS. 3, 9 and 12. A width B1 near the outlet opening 12 is smaller than a width B2 at a location further away from the outlet opening 12, see FIG. 3. In FIGS. 3 and 9, it can also be seen that a length L1 of a rib 33 is different from the length L2 of an adjacent rib 33. The rib 33 of greater length L1 has a distance A1 measured radially to the outlet opening 12. The rib 33 of smaller length L2 has a distance A2 to the outlet opening 12. The distance A2 is greater than the distance A1. The rib 33 of greater length L1 is arranged between two ribs 33 of smaller length L2. This allows the area on the underside 31, which comes into contact with the pasty mass 4, to be considerably increased. The enlarged area is compared with a reference area. The size of a plane area enclosed by the wall of the container 3 is used as reference area. For a standard barrel with a capacity of 200 l, which has a diameter of 570 mm, the reference area is 0.26 m.sup.2. The area on the underside 31, which comes into contact with the pasty mass 4, is larger than the reference area by a factor of 3 to 4. In this example, it can be 0.8 m.sup.2 to 1.0 m.sup.2.
[0042] Between each two adjacent ribs 33 there is a guide channel and/or space 34. The space 34 has a height H measured in the vertical direction, see vertical sections according to FIGS. 4, 9 and 13, and a width Z measured in the circumferential direction around the outlet opening 33, see FIGS. 3, 9 and 12. The height H1 of the space 34 at a location near the outlet opening 12 is greater than a height H2 of the space 34 at a location further away from the outlet opening 12. The height H increases continuously with decreasing distance from the outlet opening 12 along a curve with varying curvature. Thus, the underside of the follow-up plate 9 has a bell-shaped contour in the space 34, see FIGS. 4, 5 and 9. The height H of the spaces 34 at a location, which has the distance A from the outlet opening 12, corresponds to the height of the ribs 33 at a location having the same distance from the outlet opening 12. At a location near the outlet opening 12, the space 34 has a width Z1 which is smaller than a width Z2 at a location further away from the outlet opening 12, see FIGS. 3, 9 and 12. As the distance A from the outlet opening 12 decreases, the width Z decreases continuously along the ribs 33. A free cross-sectional area Z*H of the space 34, which is calculated as the product of the width Z and the height H, is larger at a location near the outlet opening 12 than at a location further away from the outlet opening 12. As the distance from the outlet opening 12 decreases, the cross-sectional area Z*H increases continuously along the ribs 33.
[0043] Instead of eight ribs 33 in FIG. 3, only seven ribs 33 are provided in the embodiment of the follow-up plate 9 shown in FIG. 6, all of which have the same length L and the same distance A from the outlet opening 12. The embodiments of the follow-up plate 9 shown in FIGS. 7 to 10 each have two outlet openings 12. In the embodiment shown in FIGS. 8 to 10, a separating rib 40 extends between the two outlet openings 12. The separating rib 40 extends transversely to a radial direction in relation to the outlet openings 12. The other ribs 33 extend radially outwards from the respective outlet opening 12. The ribs 33 have different lengths L and distances A. In the embodiments of FIGS. 12 and 13, it can be seen that the underside 31 of the follow-up plate 9 and/or the underside of the ribs 33 is oriented at an angle W to the circumferential surface 32 and/or the wall of the container 3 which is less than 90. The angle W can be in the range between 80 and 87.
LIST OF REFERENCE NUMERALS
[0044] 1 conveying device [0045] 2 carrier [0046] 3 container [0047] 4 pasty mass [0048] 5 cylinder [0049] 6 piston rod [0050] 8 crossbeam [0051] 9 follow-up plate [0052] 10 rod [0053] 12 outlet opening [0054] 13 pump [0055] 14 conveyor line [0056] 15 control device [0057] 20 support jacket [0058] 21 wire fabric [0059] 22 bar [0060] 23 quick-release fastener [0061] 30 upper side [0062] 31 underside [0063] 32 circumferential surface [0064] 33 rib [0065] 34 space [0066] 36 heating device [0067] 37 heating element [0068] 38 heat insulation [0069] 40 separating rib [0070] A, A1, A2 distance [0071] B, B1, B2 rib width [0072] H, H1, H2 height [0073] L, L1, L2 length [0074] Z, Z1, Z2 space width [0075] W angle
