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(11) | EP 2 253 794 A2 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Method of dividing the sunblind ladder of sunblind lamellas and device for dividing performance |
| (57) The method of dividing the sunblind ladder of sunblind lamellas, when in front of
the place of sunblind lamellas insertion between transversal branches of the sunblind
ladder, the transversal branches are pulled apart and they are transported in pulled
apart state to the location of sunblind lamellas insertion. After insertion of the
sunblind lamella, the sunblind ladder and the sunblind lamella move away to the place
for release of transversal branches of the sunblind ladder. The divider for this method performance includes two mirror-placed and motion-connected on running surface systems (A, B) of dividers (1), swing-adjusted from/to the work position. |
Technical Field
[0001] The invention relates to the method of dividing the sunblind ladder of sunblind lamellas and the device for division performance.
The Contemporary State of the Art
[0002] It is well known that sunblind lamellas are manufactured using the stacking devices with stacking units that put lamellas between loops of two or more supporting rope ladders. In this way, there are stacked the internal window lamellas - it is not necessary to secure the lamellas against turning in the loop of the ladder. A problem with stacking occurs in case of stacking of transversal deflected long and wide sunblind lamellas to be used outside windows, where the sunblind lamellas are not freely threaded to the loops of the supporting rope ladder, but between two stationary elements in approximately height dimension of the sunblind lamella, using mirror-placed pair of dividers. The pulled apart transversal branches separate individual loops of supporting usually rope ladders. Reliable setting of the sunblind lamella is possible only under pre-assumption that transversal branches of the supporting ladder are sufficiently strung and simultaneously pulled apart in such a way so as the sunblind lamella freely moves between them - otherwise, the sunblind lamely is put directly to the loop of the supporting ladder, which is the better case or it cuts some of the transversal branches, which is the worse case. Then, the supporting ladder must be manually replaced in both of the cases. Up to now, the problem with routing of sunblind lamellas was not successfully solved. It is caused by the inconstant shape of the supporting ladder and its significant dimension tolerances as well as by dimensions of sunblind lamellas for outdoor use, the length of which reaches even several meters. More, the stationary layout swinging dividers used by now slow down the stacking speed and consequently the overall productivity of the machine.
Technical Solution Base
[0003] The aim of the invention is to find a more productive method of dividing the transversal branches of sunblind ladder of sunblind lamellas and to create a device with simple construction and easy adjustment for performance of division with high efficiency. The above stated task can be fulfilled to a significant level using the method of dividing the sunblind ladder of sunblind lamellas according to this invention. The invention is based mainly on the fact that in front of the place of sunblind lamellas insertion between transversal branches of the sunblind ladder, the transversal branches are pulled apart and they are transported in pulled apart state to the location of sunblind lamellas insertion. After insertion of the sunblind lamella, the sunblind ladder and the sunblind lamella move away to the place for release of transversal branches of the sunblind ladder.
[0004] It seems that there is a favourable device for performing this method of dividing the sunblind lamellas. The device is based mainly on the fact that it includes two mirror-placed and motion-connected swinging dividers on running surface, treated into and from the working position.
[0005] In consideration of construction simplicity it seems favourable if individual dividing elements in systems of dividers are inter-connected and driven using a pair of chains, each of them being wrapped around a sprocket wheel, placed between arms of holders, while the inner walls of holder arms are equipped with a race, to which fit the jockey pulley placed on chains.
[0006] In consideration of maximally simple construction it seems favourable for each pulling aside devices to be placed in a swinging way from / to the work position on the box fixed between the chains and it is driven by a rack drive using a pneumatic cylinder.
[0007] It is favourable if the driving unit of sprocket wheels is a servomotor or a pneumatic motor connected in each set of dividers with the sprocket wheels shaft.
[0008] For simplicity purposes it is favourable if each set of dividers matches a trio of double-action pneumatic cylinders interconnected with sprung racks of the rack gear through three continuous holes in the bottom of the control groove, made on the inner side of the holder arm and housing the end of the rack of the rack gear.
Figures in Drawings
[0009] The invention will be explained in detail using the drawings, where Fig. 1 shows an axonometric front view of the divider, Fig. 2 shows the rear view of the set of dividers, Fig. 3 shows the view of the set of dividers in vertical cut and Fig. 4 shows the layout of swinging drive of dividers in cut.
Sample Version Description
[0010] As it can be seen in Fig. 1, the divider consists of two systems of A, B dividers 1 organised in mirror image on the holder 2 placed on carriers 4 of the machine for production of sunblind lamellas 5 in front of the stacking device 3. The dividers 1 in both systems A, B are mutually motion-connected and kept along the running surface using two chains 6 between which are placed the boxes 7 of the dividers 1. In consideration of the fact that both of the systems A, B of the dividers 1 differ only by their mirror layout, the below described is only the A system placed on the left on Fig. 1 and 3. As Fig. 3 indicates, chains 6 are wrapped around two sprocket wheels 8 placed on common shaft 9 between the front arm 10 and rear arm 11 of the carrier 2 and they are kept on the running surface using jockey pulleys 12 placed on chains 6 and lead in grooves 13 made on the inner side of the front arm 10 and rear arm 11 of carriers 2. The common shaft 9 of sprocket wheels 8 is connected with the driving unit 14 fixed on the holder 2 according to Fig. 2 on its rear side. Preferentially, the driving unit 14 of sprocket wheels 8 is a servomotor or a pneumatic cylinder.
[0011] Each divider 1 is placed in the end of a shaft 30 getting out of the box 7 and it is swing-controlled to/from the working surface by turning the shaft 30 via the rack gear 15 adjusted in the box 7. For this purpose, the rack 16 of the rack gear 15 is spring and taken out of the box 7 to the control groove 17 made in this case on the rear arm 11 of the carrier 2. So as to arrange easier movement in the control groove 17, the end of the rack 16 is equipped with a pulley 29. In the section, where three dividers 1 in one system A are opposite to three dividers 1 in the other system B, the rear arm 11 houses three vertically placed holes 18 in the bottom of the control groove 17 and they house travelling cubes 19, while the fronts 31 make - when the cubes 19 are inserted to holes 18 - the bottom of the control groove 17 and in extended position they are in the plane of fronts 32 of the extensions 33 placed between holes 18. The cubes 19 are connected to pistons 20 of pneumatic cylinders 21, that move the cubes 19 in a controlled manner and their movement is transferred via the rack gear 15 to the dividers 1.
[0012] The stacking device 3 is of well known version and it is displayed in a simplified way, so as there can be seen the non-movable lead 22 and hinged stops 23 and movable lead 24 with hinged stops 25 and also guides 26 of the sunblind ladder 27.
[0013] The dividing of transversal branches 28 of the sunblind ladder 27 is performed in front of the place of insertion of sunblind lamellas 5. The pulled apart transversal branches 28 of the sunblind ladder 27 are then transferred to the place of insertion of sunblind lamellas 5 and after insertion of sunblind lamellas 5 the sunblind ladder 27 with the sunblind lamella 5 moves away to the place of release of transversal branches 28 of the sunblind ladder 27.
[0014] When stringing the first sunblind lamella 5, the sunblind ladder 27 is kept in upright position and it is inserted into guides 26 of the stacking device 3, slipped on the first lowest placed divider 1 in both systems A, B of the dividers 1.
Such dividers 1 extended between transversal branches 28 of the sunblind ladder 27 are lifted together with the sunblind ladder 27 to the position for insertion of the sunblind lamella 5 between fully open transversal branches 28 of the sunblind ladder 27.
After insertion of the sunblind lamella 5 between fully open transversal branches 28 of the sunblind ladder 27 of the divider 1, there is performed the synchronous movement of the stacking device 3 and partially turned the chain wheels 8 in one pitch of transversal arms 28 of the sunblind ladder 27 - and the sunblind lamella 5 is lifted by the movable guide 24 and it is held - so as to avoid reverse movement - by the hinged stops 25. Simultaneously, the top-placed opposite dividers 1 are pulled by pneumatic cylinders 21 to holes 18 of the control groove 17 of the cubes 19, so that the adjacent racks 16 with a spring 34 move away with them and in this way they extend the dividers 1 from transversal branches 28 of the sunblind ladder 27 to non-operation position and they remain there for the whole time, when the pulleys 29 of the racks 16 lean against the bottom of the control groove 17.
[0015] When the top-placed dividers 1 are returned by pulleys 29 in the control groove 17 by pulling aside the cube 19 by pneumatic cylinders 21 back to non-working position, in the course of the following cycle of the running system the cube 19 is extended by the pneumatic cylinder 21 again, so as the front 31 follows the front 32 of the extension 33 in such a way so as there can be moved the pulleys 29 of the central divider 1 fully swung into the working position.
[0016] The cubes 19 below the bottom dividers 1 will be - when the pulleys 29 of their racks 16 are moved to the front 32 of the extension 33 - inserted in the course of the following cycle of the running system by pneumatic cylinders 21 to holes 18, so there could move the pulleys 29 of the newly running dividers 1 and consequently, the dividers 1 are swung to working position by reverse movement of the cubes 19 - the movement is performed by the pneumatic cylinders 21 of the pulling part device 1. They are inserted between the transversal branches 28 of the sunblind ladder 27. When all the opposite dividers 1 are in position according to Fig. 3, there follows the above described stacking of another sunblind lamella 5, which continues until stacking of selected number of sunblind lamellas 5. After insertion of the last sunblind lamella 5 between transversal branches 28 of the sunblind ladder 27, all the pneumatic cylinders 21 pull the cubes 19 into the hole 18 in the bottom of the control groove 17, which causes that all the opposite dividers 1 are deflected via the rack gear 15 to non-working position out of the sunblind ladder 27, while sprocket wheels 8 are not driven at that time. Lifting of the last stacked sunblind lamella 5 above the hinged stops 23 of the fixed guide 22 and stopping of movement of the sunblind ladder 27 - which usually moves when stacking the last sunblind lamella 5 in several transversal branches 28 - all the pneumatic cylinders 21 return the cubes 19 back. In this way, the rack gear 15 swing the dividers 1 from the working position, in which the transversal branches 28 of the sunblind ladder 27 are open. When the dividers 1 are re-inserted between the transversal branches 28 of the sunblind ladder 27, the next stacking may start.
Industrial Applicability
1. The method of dividing the sunblind ladder of sunblind lamellas, characterised by the fact that in front of the place of sunblind lamellas insertion between transversal
branches of the sunblind ladder, the transversal branches are pulled apart and they
are transported in pulled apart state to the location of sunblind lamellas insertion.
After insertion of the sunblind lamella, the sunblind ladder and the sunblind lamella
move away to the place for release of transversal branches of the sunblind ladder.
2. The dividing device for performing the method according to claim 1, characterised by the fact that it includes two mirror-placed and motion-connected on running surface
systems (A, B) of dividers (1), swing-adjusted from/to the work position.
3. The dividing device for performing the method according to claim 1 or 2, characterised by the fact that in both systems (A, B) of the dividers (1) the individual dividers
(1) are connected and driven by a pair of chains (6), each of them being wrapped around
the sprocket wheel (8) placed between the arms (10, 11) of holders (2), while the
inner walls of arms (10, 11) of holders (2) are equipped with the race (13), to which
fit the jockey pulleys (12) placed on chains (6).
4. The dividing device for performing the method according to claim 1 or 2 or 3, characterised by the fact that each divider (1) is swing-placed to/from working position on the box
(7) fixed between the chains (6) and it is driven by the rack gear (15) using the
pneumatic cylinder.
5. The dividing device for performing the method according to claim 1 or 2 or 3 or 4,
characterised by the fact that the driving unit (14) of sprocket wheels (8) is a servomotor or pneumatic
motor connected in each system of dividers (1) with the shaft (9) of sprocket wheels
(8).
6. The dividing device for performing the method according to claim 1 or 2 or 3 or 4
or 5, characterised by the fact that each set of dividers (1) matches a trio of double-action pneumatic
cylinders (21) interconnected with sprung racks (16) of the rack gear (15) through
three continuous holes (18) in the bottom of the control groove (17), made on the
inner side of the arm (10) of the holder (2) and housing the end of the rack (16)
of the rack gear (15).