DE1788072C3 - Device for the pneumatic loading of a number of receiving stations with a common supply line - Google Patents

Description

The invention relates to a device for the pneumatic loading of a number of each with one Receiving stations provided with a demand indicator device with a common supply line to which the individual receiving stations are switched on via discharge locks, and with an automatic control device, which, depending on the demand indication, the loading of the individual receiving stations controls by opening the associated discharge locks, with two on the common feed line or several supply sources are connected and the receiving stations through into the supply line switched-on shut-off valves can be assigned to the supply sources, and with control means which the loading according to the selected assignment of the receiving stations to the supply sources set according to patent 15 88 193.3,

For example, the invention can be applied to the distribution of fabrics such as those in textile plants processed, i.e. on the distribution of fibrous or fibrous materials such as cotton,

ίο Rayon and Dacron. The invention is light on, however the handling of the substances mentioned is limited, but any other substance that to be distributed by means of the system can be handled easily. Any fabric that stands out

ι? z. B. can promote a stream of air can easily be distributed by means of such a system.

For example, in textile mills there are often cases where it is deemed necessary to use fibers from one Processing system to convey to another, usually done by suspending the fibers in one Air flow occurs In order to separate the fibers from the air flow at the discharge point, a "Fiber condenser" used manifold-take-off valve device, such as in the USA patent specification 30 39 149 is described condensing apparatus of this type or other material separating or distributing devices can be arranged at the individual receiving stations be on soft the fibers depending on the

jo material requirements of the station concerned can be distributed target. Such a condensation apparatus or distributor / collector valve has an air inlet and an air outlet duct in connection with a fiber outlet to a hopper or the like provided at the relevant station and a controllable consumer, for example in the form of a valve to divert the air and the substance suspended in this from the Inlet channel and for dividing the same on the air outlet channel or the fiber outlet, if the relevant receiving station e'inep material needs The inlet and outlet ducts of all distributors are in an air circulation system switched on, the arrangement being made such that the in the air stream suspended substance, if the recipient of a receiving station is not activated, when arriving at this Station is swept past the recipient in question and conveyed on to the next station. Every Receiving station has a device for determining their material requirements and the individual Receiving stations are connected in turn to an electrical system, which is the pick-up valve of the station in question depending on the current demand notification of this Station provided locking device operated or not operated The mode of operation of such a pick-up valve is in conjunction with F i g. 2 explained.

In all previously known systems of this type, there was always only a single source of supply for this Distributing goods available from which the individual receiving stations were loaded. The application only one source of supply, however, was a limitation for the industry.

The object on which the invention is based is, in the device of the initially mentioned

e ^r ) defined way to enable the use of two or more supply sources for the goods to be distributed, regardless of whether these supply sources are close together or fairly far away

are distant from each other

According to the invention, this object is achieved in accordance with the invention solved in that each receiving station switching devices with at least one individual Switches are assigned, the number of positions corresponding to the number of supply sources each of which indicates a single supply source feeding this station, and that the switching device is connected to a control unit which controls the supply of material from the supply sources About the conveyor to the receiving stations according to the position of the individual switch so causes only one supply source for feeding a given receiving station is used.

In the device according to the invention, the goods supplied by the supply sources can in any case a number of selected receiving stations connected to the distribution line are distributed. The prior sources are connected in such a way that they all have their goods at the same time to the predetermined ones Able to deliver receiving stations that have a need, with one at each point in time Receiving station is only fed from a supply roll. The goods can not only go further in Depending on the needs of each receiving station, they can also be delivered to receiving stations, who have a need for a good supplied by a certain supply source. This plant shows thus a versatility that the textile industry has not been able to offer up to now.

From the following description it is also apparent that the device according to the invention automatically the Selection of a predetermined number of receiving stations is able to undertake, by a selected one Supply source are to be charged from, J5 with only one supply source for charging any given receiving station is selected.

Particularly advantageous developments and refinements of the invention emerge from the Claims 2 to 4.

In the following, the invention is illustrated by means of exemplary embodiments with reference to the drawing explained in more detail It shows

F i g. 1 is a schematic representation of an embodiment an electrical control with the features of the invention for the distribution of two advance sources of goods delivered to a number of receiving stations, at which each receiving station loading supply source can be selected by changing the position of a multiple switch can,

F i g. 2 is a schematic representation of another Embodiment of an electrical control according to the invention for the distribution of by two κ Supply sources deliver goods to a number of receiving stations, some receiving stations can be fed from both supply sources, and

Fig.3 consisting of Fig.3A, 3B and 3C, an eo schematic representation of another embodiment of the invention, in which the one of three Supply sources supplied good is distributed to a number of receiving stations.

F i g. 1 illustrates μ in a schematic representation an embodiment of the invention in which a distribution system all receiving stations from one or of two storage squeegees or a predetermined one Number of receiving stations from one and the remaining receiving stations from the other supply source from -to feed.

The system is particularly versatile and adaptable, as the supply source feeding a given receiving station can be changed in such a way that a multiple switch (multiple-position selector switch) is thrown or a single stopper or a manual shut-off valve is inserted into the line through which the fibers flow another plug is removed. In this embodiment, two fiber supply sources A and B are capable of supplying fibers suspended in a moving air stream to a plurality of receiving stations 650, 652 and 654. As can be seen from the following description of the mode of operation of the device according to FIG. I will become even more clear, this embodiment is not limited to a specific number of receiving stations, the manner in which several receiving stations are switched on or off will be explained in more detail.

In this embodiment, each supply source is assigned a main control in the form of a number of relays which cause the supply source to dispense fibers into a conveying line 676 and cause the conveying line to be blown through after all receiving stations at which there was a fiber demand have been charged. The main control 656 is assigned to the supply source B and the main control 658 is assigned to the supply source A. The distribution system for both supply sources is switched on by applying an electrical potential of, for example, 110 V alternating current to two lines 660 and 66Z

The receiving stations 650, 652 and 654 are assigned customer valves 666, 668 and 670, so that, when one of these valves is open, fiber material is removed from the conveying line 676 and the fibers conveying air is sucked into a conveying line 678 under the action of a fan 680. The blower 680 voltage can be applied by applying an electrical potential to lines 680a and 680ό or only then switched on when the fibers are distributed or the system is blown through. Optional Each receiving station can have its own fan assigned to it. How the Pick-up valves 666, 668 and 670 are shown in conjunction with FIG. 2 explained in more detail

This embodiment of the invention is able to meet the fiber requirements of each of the receiving stations 650, 652 and 654, as often as a filling level switch 682, 684 or 686 assigned to each of these receiving stations is open and thereby indicates a need for further fibers at this receiving station.The position of each of three multiple switches (Multi-position selector switches) 690, 692 and 694, each consisting of five individual switches, determines from which supply source the assigned receiving station is to be loaded. If, for example, one of the multiple switches is in the "upper" position, in which the multiple switch 690 is shown, the relevant receiving station is only fed by the supply source B. If, on the other hand, one of the multiple switches is in the "lower" position, in which the multiple switch 694 is shown, the receiving station assigned to it is only fed by the supply source B. This choice between the upper and the lower position is of course only arbitrary and only serves the purpose of

detailed explanation of the operation of this embodiment of the invention. Of course, this embodiment could also have more than two supply sources by adding further positions which the multiple switches are able to assume and further circuits of the type already available. When the multiple switches are in the positions shown in FIG. 1 are located, the receiving stations 650 and 652 are thus by the supply source. B is loaded while the receiving station 654 is fed by the supply source A. Obviously, all three receiving stations from each of the two supply sources or two receiving stations can be loaded from one and one receiving station from the other supply source, each of these receiving stations can of course be switched off from the system so that no fibers are fed to it

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In the embodiment shown, the receiving stations located closest to this supply source do not necessarily need to be supplied by this closest supply source. Additionally, if two or more receiving stations need fiber from one of the supply sources, the receiving stations "to the left" of that supply source will receive the fibers first. Neither of these conditions is necessarily indicative of the actual practical arrangement, since the receiving stations can be located at any point so that, for example, the receiving station 652 could be located as close to the supply source A as it is to the supply source B. It can thus be seen that the schematic representation of the arrangement of the receiving stations according to FIG. I is not a limitation.

The mode of operation of the illustrated embodiment is explained below on the assumption that, for example, the multiple switches 690, 692 and 694 are all in the illustrated position and the level switches 682, 684 and 686 are all open and indicate a fiber requirement. As often as all level switches of all receiving stations to be loaded by the supply source B are closed and thus indicate no need for fibers at one of these receiving stations, current flows through the coil 696 of a time relay 698 and the coil 700 of a relay 701, whereby the fibers from the supply source B dispensing distribution system is put out of operation, while at the same time the circuit is interrupted which activates the supply source B for the delivery of fibers B and loading the receiving station 654 through the supply source A , the circuit for the coils 696 and 700 is closed. The current flow goes via lines 660 and 702, a break contact 704, a line 706, a contact 708 of the multiple switch 690, lines 710 and 712, the closed level switch 682, lines 714 and 716, a contact 718 of the multiple switch 690, a line 720 , a contact 722 of the multiple switch 692, lines 812 and 814. the level switch 684, lines 838 and 840, a contact 726 of the multiple switch 692, a line 728, a contact 730 of the multiple switch 694, a line 732, a contact 734 of the multiple switch 694 , line 736, coils 696 and 700 via line 662 and back to the voltage source.

"> The SiromfluQ through the coil 700 causes an instantaneous opening of the normally closed contact 737, whereby the current flow through the coil 738 of a conveyor relay 739 via the lines 660, 740 and 742, the normally closed contact 737 and a line 744 is switched off

ίο will. The normally open contact 746 drops out at the same instant and thus prevents the supply source B from supplying fibers to the conveying line 676. When restarting, the normally open contact 746 closes after the start of the current flow through the

! ■> Coil 738, however, delayed by a pick-up delay for a short period of time in order to allow the system to fully take up the fibers supplied by the supply source B into the conveying line 676

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The normally closed contact 704 has a pull-in delay of a few seconds, so that the blowing through can be done in a manner to be described in more detail. The opening of the normally closed contact 704 for a certain period of time after the start of the current flow through the coil 696, the current flow via the coils 696 and 700 is interrupted. By interrupting the flow of current through the coil 700, the normally closed contact 737 closes while through the interruption of the current flow through the coil 6% of the normally closed contact 704 closes again so that the coils 696 and 700 are connected to voltage again. The current flow through the coils G96 and 700 is periodically in time with the time periods during which the normally closed contact 704 opens briefly and the Normally closed contact 737 closes briefly interrupted. The normally closed contact 737, however, never closes as long as that - due to the pull-in delay - the coil 738 the normally closed contact 746 can close.

However, if the current flow through the coils 696 and 700 by opening one or both level switches

■ »o ter 682 and 684 is interrupted, the normally closed contact 737 drops constantly, whereby a constant voltage is applied to the coil 738 of the feed relay 739, so that the normally open contact 746 and thus the supply source B fibers after a corresponding pull-in delay

«5 delivery begins

Between the times at which a level switch opens and the normally open contact 746 closes the pick-up valve of the receiving station which is to be loaded first is opened

so be an explanation of the illustrated embodiment assumed that the level switch o82 and immediately thereafter the level switch 684 is opened. Of course, if only one of the both foot switch 682 or 684 is open, the The receiving station assigned to an open level switch can be charged alone.

Since the receiving stations 650 and 652 are both loaded from the supply source B , the receiving station 650 receives the fibers from the supply source

B first, since it is closest to the supply source according to the illustration in FIG. 1.

The circuit runs via the line 660, the line 702, the normally closed contact 704, the line 706, the Contact 708 of multiple switch 690, lines 710, 712, 752 and 754, a changeover contact 756, a

Line 738 and an ON-OFF switch 760 to the one connection of the pull coil 730 and of the line 662 via lines 762 and 744 to the other Connection of the pull coil 750.

The doffing valve 666 remains open for the delivery of fibers to the receiving station 630 until the level switch 682 closes, indicating that the receiving station has sufficient Amount of fiber received. Closing switch 682 then closes the circuit for a Relay coil 790 of a relay 792 over the lines 660 and 702, the normally closed contact 704, the line 706, the Contact 708 of multiple switch 690, lines 710 and 712, level switch 682, coil 790 and lines 762, 744 and 662 are closed. This closes a normally open contact 802 as well a changeover contact 756 from the line 754 to a Line 804 transferred. As a result, the current flow uürcii u! C £ u

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the pickup valve 666 closes immediately. Closing the normally open contact 802 bridges the level switch 682 so that the current flows through the pulling coil 790 until all stations to be loaded by the supply source B have received fiber material, even if the level switch 682 opens again and should indicate a further fiber requirement.

If the fiber requirements of the receiving station 652 are still met and the level switch 682 as well as the Normally open contact 802 closes, the circuit is closed by jo a pull coil 806, whereby the pick-up valve 668 is opened in the same way as the pick-up valve 666. This through the pull coil 806 The current circuit begins on line 660 and continues via line 702, normally closed contact 704, to J5 Line 706, the contact 708 of the multiple switch 690, the lines 710 and 712, the level switch 682 (or line 752, normally open contact 802 and a line 800), lines 714 and 716, the contact 718 of multiple switch 690, line 720, contact 722 of multiple switch 692, lines 812, 814 and 816, a changeover contact 818, a line 820, an ON-OFF switch 822, the pulling coil 806 and lines 762 and 744 to line 662 continue. In the same way as in connection with the Described operation of the receiving station 652, the pick-up valve 668 remains open as long as the open level switch 684 indicates a need for further fiber delivery. When closing the Level switch 684, the coil 824 of a relay 826 is connected between the lines 814 and 762, the in turn are at the potential of lines 662 and 660, respectively. The one by closing the level switch 684 caused current flow through the coil 824 causes a normally open contact 830 to close and sets the Changeover contact 818 from line 816 to line 834, whereby the current flow through the pull coil 806 is interrupted and the consumer valve 668 is closed.

Since the receiving station 652 is the last receiving station to be loaded from the supply source B , the system is now blown through. Closing the level switch 684 closes the circuit via the coil 700 and thereby opens the normally closed contact 737, whereby the circuit via the coil 738 of the feed relay 739 is interrupted, so that the normally open contact 746 opens immediately and thus the supply source B is switched off. The current flow through the pull coil 700 runs from the line 660 via the line 702, the normally closed contact 704, the line 706, the contact 708 of the multiple switch 690, the lines 710, 712 and 752, the normally open contact 802, the lines 800, 714 and 716, the Contact 718 of the multiple switch 690, the line 720, the contact 722 of the multiple switch 692, the lines 812, 814 and 816, the normally open contact 830, lines 836, 838 and 840, the contact 726 of the multiple switch 692, a line 728, the contact 730 of the multiple switch 694, the line 732, the contact 734 of the multiple switch 694, a line 736, the coil 700 and the line 662. Since the coil 6% is connected in parallel with the coil 700, it is also live. After the predetermined pull-in delay of the timing relay 698, the normally closed contact 704 opens and interrupts the flow of current through the coils 690 and 700.

By closing the level switch of the last by the supply reel B to be charged up station, in the present case the level switch 684, a current circuit is closed via the collector valves from the supply source B from charged receiving stations, so that now the bubbling takes place. When the fill level switch 684 is closed, the tension coils 750 and 806 are switched between the lines 762 and 736, which in turn are at the potential of the lines 660 and 662. The circuit is from the line 762 through the pull coil 750, the ON-OFF switch 760, the changeover contact 756, a line 804 and the changeover contact 856 to the line 736 and from the line 762 via the pull coil 806, the ON-OFF switch 822, the line 820, the changeover contact 818, the line 834 and the switch 868 to the line 736.

The system is blown through between the opening times of the normally open contact 746 and the normally closed contact 704. All of the take-off valves assigned to the supply source B , in the present case the take-off valves 666 and 668, are open, but the supply source B no longer supplies any further fibrous material. When the normally closed contact 704 is opened, the circuit is interrupted via the coils 790 and 824, whereby the normally open contacts 802 and 830 drop and the changeover contact 756 is switched from the line 804 to the line 754 and the changeover contact 818 from the line 834 to the line 816. When the switches 756 and 818 are toggled, the circuits via the pull coils 750 and 806 are interrupted, so that the pick-up valves 666 and 668 close.

In addition, opening switch 704 also opens the circuits across coils 696 and 700 interrupted and thus the normally closed contacts 737 and 704 are closed. By closing the normally closed contact 704 the circuit via the coils 696 and 700 is restored so that the normally closed contact 737 is immediately and the normally closed contact 704 opens with a pull-in delay, while at the same time the circuit via the Coils 790,824 and the pull coils 750 and 806 are closed again. In this way the system blows, as described, by itself, as often as the normally closed contact 704 opens until the level switch opens 682 or 684 opens and indicates a need for further fiber supply. In practice, the number is closed supplying receiving stations are usually so large that after a single blow-through again one of the level switches will be open.

Simultaneously nvt the loading of the reception

tion 650, the receiving station 654 is also supplied by the supply source A independently of this. In this case, of course, a plug or manual shut-off valve 835 must be switched on in the conveying line between the receiving stations 652 and 654 to ensure that each receiving station is only fed by one supply source.

The distribution system assigned to the supply source A works in the same way as the distribution system assigned to the supply source B , the delivery lines also being blown through periodically during the supply breaks. Since in the present example only the receiving station 654 is fed by the supply source A , a circuit for the coils 860 and 862 is closed by the level switch 686, which via lines 660, 740, 864 and 866, a break contact 868, a line 870, a Contact 872 of the multiple switch 690, a line 874, a contact 876 of the multiple switch 690, a line 878, the contact SSG of the multiple switch 592, a line 882, a contact 884 of the multiple switch 692, a line 886, the contact 890 of the multiple switch 694, Lines 892 and 894, the level switch 686, lines 8% and 898, a contact 900 of the multiple switch 694, lines 902 and 904, the coils 860 and 862 and lines 906, 908, 762, 744 and 662. When the level switch 686 is closed, the current also flows via the coil 910 of a relay 912 from the line 762 at the potential of the line 660 to the line 902 at the potential of the line 662 via lines 914, 896 and 898 and the contact 900 of the multiple switch 694. As described in connection with the controller 656, the normally closed contact 868 opens periodically, as a result of which the system is repeatedly blown through until the fill level switch 686 opens and indicates a further fiber requirement of the receiving station 654.

When the level switch 686 opens, the current flow through the coils 862 and 860 is interrupted and the normally closed contact 916 closes, whereby a coil 918 is connected via a line 920 between the line 762 at the potential of the line 662 and the line 762 at the potential of the I. . <iiitnjxfiftO lying line WA is switched, which causes the normally open contact 922 to close, which applies voltage to the supply source A so that it charges the conveying line 676 with fiber material. However, the closing of the normally open contact 922 is delayed for a few seconds so that the receiving station is in full readiness for fiber receiving.

When the level switch 686 is opened, a circuit is closed via a pull coil 924 and thereby a pick-up valve 670 is opened, wherein the circuit of the one at the potential of the multiple switch 694, the lines 892, 894 and 926, one Changeover contact 928, a line 934, an ON-OFF switch 932 and the pull coil 924 to the on The line 762 lying at the potential of the line 662 runs when the level switch 686 closes and thereby indicates that the receiving station 654 enough fiber material has been fed to a The circuit is closed via the coil 910 from the line 894 to the line 762 and the changeover contact is made 928 from line 926 to line 930.

Since the receiving station 654 is the only station fed by the supply source A , the system is blown through when the fiber requirements of the receiving station 654 are met and the fiber supply from the supply source A into the conveying line is interrupted. The pull coil 924 is also via the ON-OFF switch 932, a line 934, the changeover contact 928, the line 930, a contact 936 of the multiple switch 694 and a line 938 between the line 762 at the potential of the line 662 and the the potential of

ίο Line 660, line 902 connected.

This embodiment of the invention also has the further advantage that any of the Pick-up stations can be completely switched off from the distribution system. For example, the Receiving station 650 can be shut down in that the fill level switch 682 by a switch 940 short-circuited and thus an opening of the removal valve 666 is prevented. This circuit can be also with any other of the described embodiments

In Fig. 2 is a modified embodiment of FIG Invention shown, in which the distribution system has two supply sources and a number of receiving stations, which can only be filled by one supply source, as well as a second number of Has receiving stations which, depending on the position of one or more multiple switches, are similar to those in Relation to F i g. 1 described can be fed from both supply sources. In the case of the in FIG. 2

JO illustrated embodiment, three receiving stations are provided, one of which is always fed by the supply source A and another by the supply source B , while a third receiving station is both from the supply source A and from the

Ji supply source B can be charged, whereby the desired supply source can be selected by flipping the multiple switch, inserting a stopper or a manual shut-off valve and removing another stopper or opening another shut-off valve.

In this embodiment, a special pick-up valve 1000 is also provided, which is shown in each of the embodiments according to FIGS. 1 to 3 can be applied. This customer valve 1000

■ »5 takes over the fibers from the moving air stream a chute 1002, which feeds the fibers to a processing machine. This pick-up valve 1000 is opened so that the air flow carrying the fibers through the conveyor line 1004, for example is diverted into a junction 1006 assigned to a receiving station 1008 as often as the Receiving station 1008 assigned to a distribution system by opening a level switch 1010 Indicates fiber requirement. When the fill level switch 1010 is opened, voltage can be generated in a manner that will still be explained be applied to a pull coil 1012, which actuates a valve 1014, so that compressed air in a Working cylinder 1016 flows in and moves a piston 1018, which actuates a control flap 1020 and thus a channel 1022 opens

As a result of the opening of the valve flap 1020, the air flow can then flow into the junction 1006 and Push a flap 1024 to the side, which shuts off the junction and prevents leakage when the valve flap 1020 blocks the chamber 1022 The position of the flap 1024 with the control flap open 1020 is shown in dashed lines. The air flow moves past the flap 1024 into a room

1026, in which a rotating customer 1028 removes the fibers from the air stream and releases them into the arms of a second rotating doffer 1030. the Consumers 1028 and 1030 can be used in the same way as a blower 1036 or in any other way are driven. The air stream freed from the fibers flows through a curved, fixed air stream Sieve 1032 and through channels 1022 and 1034 to the blower 1036, which is via lines 1038a and 1038 /> is fed. The rotating doffer 1030 catches the falling fibers and brings them to the Processing machine leading into shaft 1002. Assigned to the receiving stations 1044 and 1046 Discharge valves 1040 and 1042, respectively, work in the same way to separate the fibers from the air stream in the delivery line 1004, as often as corresponding control flaps 1048 or 1050 are opened by the Pull coils 1052 and 1054 are connected to voltage. The operation of this embodiment is similar

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Fig. 1, only with the difference that only the middle one Receiving si-ion fed from both supply sources can be. Of course, the middle receiving station does not necessarily need to be between the two other stations to be arranged. Rather, they could be arranged at any other point and could be any number of these switchable receiving stations without difficulty to be added. In addition, this embodiment could have any desired number of -> Exchange stations «must be provided.

As in the embodiment according to FIG. 1, the embodiment shown is put into operation by applying an electrical potential to lines 1060 and 1062. To explain the invention, it is assumed that the positive pole is on line 1060 and the negative pole is on line 1062. As in connection with Fig. 1, a multiple switch 1063 is designed so that in its "upper" position according to FIG. 2 the receiving station 1044 is fed exclusively by the supply source B , while it is only supplied by the supply source A when the multiple switch is in the "lower" position. In addition, two shut-off valves 1064 and 1066 are provided, one of which can be switched into the conveying line 1004 so that the receiving station 1044 can only be fed from one supply source. The shut-off valve 1066 is closed when the “change station”, as assumed in the example below, is to be fed by the supply source δ.

The following is the mode of operation of this embodiment with the multiple switch in the "upper" position 1063 and the shut-off valve 1066 screwed into the delivery line 1004. For the purpose of In the description, it is assumed that all three level switches 1010, 1070 and 1172 are open. Of course the distribution system is able to meet the fiber requirements of each receiving station or any number of stations fulfill.

By opening the level switch 1010, a circuit is interrupted via a coil 1080 of a relay 1082 and a normally open contact 1084 is opened and a changeover contact 1086 is switched from a line 1092 to a line 1090.When the level switch 1010 is opened, the current flow via a coil 1094 is also interrupted , so that a normally closed contact 1096 closes. In addition, the opening of the switch 1010 results in an interruption of the current flow through the coil 1098 of a relay 1100, so that a normally closed contact 1102 can close. When the normally closed contact 1102 is closed, a circuit is then closed via the coil 1104 of a conveying relay 1106, so that a normally open contact 1108 closes and thereby initiates the supply of fiber material from the supply source B. The normally open contact i 108 closes with a delay, however, so that the receiving station 1006 is completely prepared for receiving fiber material when the latter is conveyed into the conveying line 1004.

By closing the normally closed contact 1096, which takes place simultaneously with the interruption of the current flow via the pull coil 1094, a circuit is established through the pull coil 1012 via lines 1060, 1110, the closed normally closed contact 1096, lines 1112 and 1114, the changeover contact 1086, a line 1116 , the pull coil 1012 and lines 1118, 1120 and 1062 "csch'iCsscn The Sircmfl'ju through the Zu ™ £ ^rvl j! c! 012 is used to open the control flap 1020 in the manner previously described. The control flap 1020 closes to a To prevent further fiber material from being picked up for the receiving station 1008 when the fill level switch 1010 closes and thereby indicates that the receiving station 1008 has picked up a sufficient amount of fiber.

When the level switch 1010 is closed, current can also flow through the coil 1080 via the lines 1060 and 1110, the normally closed contact 1096, the line 1112, the level switch 1010, a line 1121, the coil 1080 and lines 1118, 1120 and 1062. The current flow through the coil 1080 causes the normally open contact 1084 to close, which causes the pull coil 1080 to continue to have current flowing through it until all receiving stations to be fed by the supply source B have been charged, even if the level switch 1010 opens again and the changeover contact opens 1086 killed. When the changeover contact 1086 moves from the line 1090 to the line 1092, the circuit is interrupted via the pull coil 1012 and the control flap 1020 is closed.

When the level switch 1010 is closed, a circuit is established via a pull coil 1052, via the lines 1060 and 1110, the normally closed contact 1096, the line 1112, the level switch 1010, a line 1140, a contact 1142 of the multiple switch 1063, lines 1144, 1146 and 1148, a line 1150, a changeover contact 1152, a line 1154, the pull coil 1052 and lines 1118, 1120 and 1062 for opening a control flap 1048 are closed.

After the fiber requirement of the receiving station 1044 has been completely satisfied, the level switch 1070 closes and energizes a coil 1156. When current flows through the coil 1156, a normally open contact 1158 is closed and the changeover contact 1152 is switched from the line 1150 to a line 1157 1044 is the last station to be supplied by the supply source B , closing the switch 1070 initiates the blowing of the delivery line 1004 in the same way as in connection with FIG. 1 described a. When the switch 1070 is closed, circuits through the coils 1094 and 1098 via lines 1060 and UlO, the switch 1096, the line 1112, the level switch 1010 (or the line 1114 and the normally open contact 1084), the line 1140, the contact 1142 of the

Multiple switch 1063, lines 1144, 1146 and 1148, the normally open contact 1158, lines 1160 and 1162, a contact 1164 of the multiple switch 1063, Lines 1166 and 1168, the coils 1094 or 1098 and line 1062.

As in connection with Fig. 1, the normally closed contact 1102 is opened as a result of the current flow through the coil 1098 and this prevents the further flow of current through the tension coil 1104, while at the same time the normally open contact 1108 opens, * whereby the fiber flow from the supply source B into the conveyor line 1004 is interrupted. The opening of the normally closed contact 1096 is delayed, however, during this period of time a circuit between the line 1118 at the potential of the line 1062 and a line 1168 at the potential of the line 1060 over the line 1116, the changeover contact 1086 and over the pull coil 1012 line 1092 is established. In a similar way, current flows through the pull coil 1052 from the line 1118 to the line 1168 via the line 1154, the changeover contact 1152, the line 1157 and a switch 1170. The opening of the normally closed contact ΜΘ6 has an interruption of the current flow through the coils 1080, 1156, 1012 and 1052 result and the distribution system goes over to periodically blow through in the manner described in connection with FIG. 1 until one of the drop level switches 1010 or 1070 opens again

During the time during which the supply source B is loading the receiving station 1008 and 1044, a pull-up coil 1054 is activated by opening the level switch 1172 over the line 1060, a line 1186, a break contact 1182, a line 1220, a contact 1218 of the multiple switch 1063, a line 1216, a contact 1214 of the multiple switch 1063, a line 1212, a line 1202, a changeover contact 1200, a line 1190, the pull coil 1054 as well as lines 1118, 1120 and 1062 to open the pick-up valve 142 are energized the circuit is interrupted by the coils 1176 and 1178 and the normally closed contacts 1180 and 1182 are closed. Closing the normally closed contact 1180 causes a current to flow through the coil 1184 via the lines 1060, 1186 and 1188, the normally closed contact 1180, the coil 1184 and the lines 1118, 1120 and 1062. Then, after a short delay, a normally open contact 1174 is closed to the Initiate inflow of fiber material from the supply source A from.

When the level switch 1172 closes and indicates that the receiving station 1046 has received a sufficient amount of fiber, a coil 1196 is energized, a normally open contact 1198 closes and the changeover contact 1200 is switched from the line 1202 to a line 1204. Since the receiving station 1046 is the last station to be loaded from the supply source A, the blowing through of the system is initiated in the manner described in connection with FIG. When the switch 1172 is closed, a circuit is closed via the coils 1176 and 1178, so that the normally closed contact 1180 opens immediately, which leads to the normally open contact 1174 being opened. The normally closed contact 1182 is opened after a period of time, while the current passes the pull coil 1054 via lines 106A 1120, 1118, the pull coil 1054, a line 1190, the changeover contact 1200, the line 1204, a line 1208, a line 1210, the level switch 1172 , the line 1212, the contact 1214 'of the multiple switch 1063, the line 1216, the contact 1218 of the multiple switch 1063, the line 1220, the break contact 1182 and the lines 1186 and 1060 flows through the opening of the switch 1182, the current flow through the pull coil 1054 and the coil 1196 are interrupted and the system inflates itself on the one described in connection with FIG

ίο way through until the level switch 1172 is again opens and thereby indicates that the receiving station 1046 has another fiber requirement

In the following an embodiment of the invention with reference to the FIGS. 3A, 3B and 3C

is existing Fig.3 explained. Several Receiving stations fed from three independent supply queues In the exemplary embodiment six pick-up stations are shown but the following explanation of the method of operation the distribution system shows how receiving stations are simply added or removed can be. In addition, the receiving stations, as described in connection with FIGS. 1 and 2, are like that arranged that those located on the "left" eye

Stations are always loaded first.

This embodiment of the invention is also particularly adaptable and versatile in that the supply source loading a given receiving station can be changed by operating three manual switches, inserting a plug or a hand shut-off valve and removing another plug or opening another hand shut-off valve . In addition, the distribution system is constructed in such a way that further supply sources can be added without changing the circuit, simply by arranging appropriate wiring in the same way as the existing circuit.
The supply sources A, Bund C deliver fiber material via a conveyor line 1300 to receiving stations 1302, 1304, 1306, 1308, 1310 and 1312. Which of the receiving stations is fed by the respective supply source is determined by the respective position of the manual switch assigned to each receiving station Hand control switches associated with the receiving station 1302, for example, a manual switch 1314 is switched to a position which corresponds to the supply source from which the receiving station must be loaded with fiber material when it is

so the first to be loaded, i.e. the furthest "left" located station to be charged by this supply source while the switch is in the OFF position if it is not the first receiving station to be loaded. Then a switch 1316 corresponding to the supply source, of which is to be loaded from the receiving station 1302. A switch 1318 is set to its Intermediate position if the station in question is not the last station to be loaded with fibers Row is, or brought into its "end" position, if it is the last receiving station to be loaded from the relevant supply source, d. H. that is, around the station furthest "to the right" of this supply source.

The following is the working method of this modified one Embodiment of the invention explained in more detail When the hand switch is in the position according to F i g. 3 are located, the receiving stations 1302,

t5

1304 and 1306 are fed from supply source A and receiving stations 1308 and 1310 from supply source B , while receiving stations 1312 are supplied by supply source C. Here, a plug or hand shut-off valve 1320 would be switched on between the stations 1308 and 1310 and a plug or hand shut-off valve 1322 between the receiving stations 1310 and 1312. According to the aforementioned arrangement of the manual switch, a switch arm 1324 of the manual switch 1314 as well as a switch arm 1326 of the switch 1316 are shown in position A. The switch 1318 is set to "Between".

Since the receiving station 1304 is not the first station in the series to be fed from the supply source B , the switch arm 1328 of a switch 1330 is manually set to the OFF position. The switch arm 1332 of a switch 1334 is provided position Zwischenw to position A and a switch 1340 in the "because the receiving station 1304 is not the last by the supply source A to be loaded Station Of the by the supply source A to be fed stations, the receiving station 1306 last loaded when it has a need for fiber material, which is why the switch arm 1342 of a switch 1344 is put into the "off" position and the switch arm 1346 of a switch 1348 is put into position A. The switch 1350 is set to "end". Since the receiving station 1308 is the first station to be loaded from the supply source B , the switch arm 1352 of a switch 1356, like the switch arm 1358 of a switch> 360, is brought to position B. A switch 1362 is opened "Between" set Since the receiving station 1310 is the rightmost station to be supplied by the supply line 5e B , a switch 1364 is switched to "End". The switch arm 1370 of a switch 1372 is in the "Off" position and the switch arm 1380 of a switch 1382 is set to B Since the receiving station 1312 in the present example is the only station to be fed by the supply source C, a switch 1384 is set to "End". The switch arm 1386 of a switch 1388, like the switch arm 1390 of a switch 1392, is in position C brought.

The operation of this embodiment of the invention is now made under the assumption described that the manual switches are in the positions shown. Let me continue assume that all receiving stations have a fiber requirement. As soon as one of these stations has a If there is a need for fiber, the corresponding one begins, of course Supply source directly with the supply, so that not all receiving stations have a fiber requirement need before the feed starts

In the schematic representation according to FIG. 3, it is assumed that a current source is switched on between terminals Li and Li of each main control. Obviously, all terminals L \ and all terminals Li could each be connected in parallel, so that the potential only needs to be applied to one pair of terminals. μ

As with the in connection with the F i g. 1 and 2, each supply source A. and C is assigned a main control 1400, 1402 and 1404, respectively. When a level switch 1406 is opened, the circuit is interrupted via the coil 1408 and 1412 M of the main control 1400, which is connected via the terminal L \, a terminal strip 1416, a closed ON-AU.S switch 1418, a break contact 1420, lines 1421 and 1422 , the terminal 1 of the terminal strip 1416, lines 1424 and 1426, the terminal XA of a terminal strip 1430, a line 1432, the switch arm 1324, a line 1434, the level switch 1406, a line 1436, the switch 1318, a line 1438, the terminal 3X of the terminal strip 1430, a line 1440, a level switch 1442, a line 1444, the switch 1340, a line 1446, the terminal 3X of a terminal strip 1448, a line 1450, a level switch 1452, a line 1454, the switch 1350, lines 1456 and 1458, the switch 1346, a line 1460, the terminal 6A of a terminal strip 1462, lines 1464 and 1466, the terminal 6 of the terminal strip 1416, the coils 1412 and 1408, the line 1470, the Kl emme 2 of the terminal strip 1416, a line 1472 and the terminal L _{2 of} the terminal strip 1416 runs. The terminals 2 of all the terminal strips are connected together and are at the potential of the line L ₂ .

The interruption of the current via the coil 1412 closes a normally closed contact 1474 and a circuit via the coil 1480 of a conveyor relay 1482 via the ON-OFF switch 1418, a line 1484, the normally closed contact 1474, the line 1468, a closed ON-OFF switch 1490, the coil 1480, the line 1470, the terminal 2 of the terminal strip 1416 and the line 1472 closed. After a certain delay, the current flow through the tension coil 1480 causes a switch 1492 to close so that the supply of fiber material from the supply source A into the conveying line 1300 takes place in connection with the FIGS. 1 and 2 described manner is initiated. The interruption of the current flow via the coil 1408 prevents the normally closed contact 1420 from opening and ends the periodic blow-through, which will be described in more detail below.

When the normally closed contact 1420 is closed, a circuit is closed via a pull coil 1500 and a pick-up valve 1502 is thereby opened in the manner explained in connection with FIG. This circuit runs from the terminal L, the terminal block 1416 through the ON-OFF switch 1418. the closed switch 1420, the line 1422, the terminal 1 of the terminal block 1416, the lines 1424 and 1426, the terminal XA of the terminal block 1430, the Line 1432, the switch arm 1324 of the switch 1314, the line 1434, the terminal 4 of a terminal strip 1504, a line 1506, a break contact 1508, a line 1538, the terminal 7 or terminal strip 1504, the pull coil 1500, the terminal 8 of the terminal strip 1504 , a line 1512, the terminal 2 of the terminal strip 1504 and lines 1514 and 1472 to the terminal Li.

If dr? The fill level switch 1406 closes and thereby indicates that the receiving station 1302 has been sufficiently loaded with fiber material, a coil 1520 is connected via the fill level switch 1406 and terminal 3 of the terminal strip 1504 between terminal 2 of the terminal strip 1504 at the potential of the line L ₂ and the on the Potenttal of Li lying line {434 switched. The current flow through the coil 1520 opens the normally closed contact 1508 and closes the normally open contacts 1522 and 1524. Closing the normally open contact 1524 bridges the level switch 1406 so that the current flows through the coil 1520 even when the level switch 1406 is opened again. Opening the contact 1508 breaks the circuit across the pull coil 1500 so that the pickup valve 1502 closes.

When the filling switch 1406 is closed, a circuit is closed via a pulling coil 1530 and this opens a pick-up valve 1532. This circuit runs from terminal 4 of terminal strip 1504, which is at the potential of terminal L \ , via level switch 1406, terminal 3 of terminal strip 1504 , the line 1436, the switch 1318, the line 1438, the terminal 3X of the terminal strip 1430, the line 1440, the terminal 4 of the terminal strip 1532, the line 1533, the normally closed contact 1536, the line 1538, the terminal 7 of the terminal strip 1532, the Pull coil 1530, terminal 8 and line 1534 to terminal 2 of terminal strip 1532, which is at the potential of terminal L ₂ . The closing of the level switch 1442, which indicates that the receiving station has received 1304 a sufficient amount of fiber, closes an electrical circuit through a coil 1540 between the lying on the potential of the terminal L \ line 1440 and the terminal 2 lying on the potential of the terminal _L2 the terminal block 1532 via the level switch 1442 and the terminal 3 "er terminal block 1532. The current flow through the pull coil 1540 opens the normally closed contact 1536 and closes the normally open contacts 1546 and 1548. By opening the normally closed contact 1536, the current flow through the pull coil 1530 is interrupted. so that the pick-up valve 1532 closes

When the fill level switch 1442 is closed, a circuit is closed via a pulling coil 1560 with the opening of a pick-up valve 1562, so that the receiving station 1306 is now loaded with fiber material. The current flows from the line 1440, which is at the potential of the terminal U , via the level switch 1442, the line 1444, the switch 1340, the line 1446, the terminal 3-Yderi terminal strip 1448, the line 1450, the terminal 4 of a terminal strip 1561, the Line 1564, a break contact J566, a line 1568, the terminal 7 of the terminal strip 1561, a pulling coil 1560, a terminal 8 of the terminal strip 1561 and a line 1570 to terminal 2 of the terminal strip 1561, which is at the potential of the terminal L _f .

The fiber material is then transferred from the supply source A to the receiving station 1306 until the level switch 1452 closes and indicates that there is no longer any need for further fiber supply Terminal 3X of terminal strip 1448 lying on terminal L \ is closed via line 1450, level switch 1452, terminal 3 of terminal strip 1561 and coil 1580 to terminal 2 of terminal strip 1561, which is at the potential of terminal L ₂ . As a result of the current flow through the coil 1580, make contacts 1582 and 1584 are closed and the break contact 1566 is opened.

Since the receiving station 1306 is the last of the storage source A to be fed station, the charged from the supply source A receiving stations will now g to in connection with the F i. 1 and 2 described manner blown through. When the level switch 1452 closes, a circuit is closed via the coils 1408 and 1412, which was initially interrupted by the opening of the level switch 1406. The flow of current through the coil 1412 opens the normally closed contact 1474, so that the circuit via the coil 1480 is interrupted and the switch 1492 is opened. When the switch 1492 is opened, the supply source A immediately stops delivering fiber material. As a result of the current flow through the coil 1408, the normally closed contact is opened with a delay

In the time between the instant of the switch 1492 and the delayed fall open the normally closed contact 1420 is bubbled through the system, while closing the level switch 1452, the line 1450 through line 1454, the switch 1350 lying on the potential of the terminal L \ is the line in 1458 , switch arm 1346 and line 1460 are connected to terminal 6Λ of terminal strip 1462. The clamp 6A

ίο the terminal strip 1462 is also via cables 1570, 1572 and 1466 connected to terminals 6Λ of terminal strips 1430 and 1448. the clamp 6Λ of terminal block 1462 is also over the line 1460, arm 1346 and line 1458 connected to terminal 6 of terminal block 1561. on Similarly, the terminals 6Λ of the terminal strips 1430 and 1448 via a line 1581, the switch arm 1326, lines 1583 and 1585 or the switch 1332 and lines 1606 and 1608 with terminal 6 the terminal strips 1504 or 1532 connected. The current now flows with opening of the pick-up valve 1562 through the pulling coil 1560 from the terminal 6.4 of the Terminal block 1462 via line 1460, arm 1346, lines 1458 and 1456, terminal 6 of the Terminal block 1561, line 1590, normally open contact 1584, line 1568, terminal 7 of the terminal block 1562, the pull reel 1560, the terminal 8 of the terminal strip 1562 and the line 1570 to terminal 2 of the terminal strip 1562.

Similarly, the collector valves 1502 and 1532 at the same time as a result of current flow through the pull coil 1500 and 1530 open, the current flows in this case from the terminal 6A of the terminal block 1430 via line 1581, the arm 1326, the lines 1583 and 1585, the terminal 6 the terminal strip 1504, the line 1602, the normally open contact 1522, the line 1538, the terminal 7 of the terminal strip 1504, the pull coil 1500, the terminal 8 of the terminal strip 1504 and the line 1512 to the terminal 2 of the terminal strip 1504.

■ ίο The current also flows from terminal 6A of terminal strip 1448 via a line 1604, the arm 1332, the lines 1606 and 1608, the terminal 6 of the terminal strip 1532, a line 1610, the normally open contact 1546, the line 1538, the terminal 7 the terminal block 1532, the pulling coil 1530, the terminal 8 of the terminal block 1532 and the line 1534 to terminal 2 of the terminal block 1532.

The normally closed contact 1420 opens with a predetermined delay and closes the pickup valves 1502, 1532 and 1562. When all level switches 1406, 1442 and 1452 are closed, the Plant to blow through. This blowing through is repeated until one of the level switches opens again, whereupon the system is activated in the manner described above to meet the fiber demand to satisfy.

Simultaneously with the supply source A and independently of this, the supply source covers the barren needs of the receiving stations assigned to it. Same way

ω as described above in connection with the charging of the receiving stations 1302, 1304 and 1306 by the supply source A , when one of the filling level switches 1620 and / or 1622 of the receiving stations 1308 or 1310 assigned to the supply source B is opened, the current flow through the coil 1630 is a Relay 1632 and the coil 1634 of a relay 1636 interrupted. By interrupting the flow of current through the coil 1630, a normally closed contact 1640 is closed or

this switch can remain closed while a break contact 1644 is closed by the current flow interruption above the coil 1634. When the normally closed contact 1644 is closed, a circuit is established through the coil 1650 of the conveyor relay 1652 via an ElN-OFF switch 1654, a line 1656, the normally closed contact 1644, a line 1660, an ON-OFF switch 1662, a line 1664, the terminal 2 of a terminal strip 1666 and a line 1668 closed. The current flow through the coil 1650 then closes a normally open contact 1670 after a delay of a few seconds, whereby the supply of fibers from the supply source B into the conveying line 1300 is initiated.

When the fill level switch 1452 is opened, a circuit is then closed via a pull coil 1680 and, as a result, a pick-up valve 1682 is activated in connection with FIG. 1 described manner opened This circuit runs from the terminal L \ via the ON-OFF switch 1654, the normally closed contact 1640, the terminal 1 of the terminal strip 1666, lines 1684 and 1686, the terminal \ B of a terminal strip 1738, the switch arm 1352, a Line 1684, the terminal 4 of a terminal strip 1686, a line 1650, a normally closed contact 1692, a line 1694, the terminal 7 of the terminal strip 1686, the pulling coil 1680, the terminal 8 of the terminal strip 1686, a line 1696, the terminal 2 of the terminal strip 1686 as well as lines 1700, 1704 and 1706 to terminal La of terminal strip 1666.

Closing a level switch 1620, which indicates that the receiving station 1308 has received a sufficient amount of bevel from the supply source B , causes a circuit to be closed via a coil 1710 from the line 16S4 at the potential of the terminal L \ via the level switch 1620, the Terminal 3 of terminal strip 1686 and the coil 1710 to terminal 2 of terminal strip 1686, which is at the potential of terminal L ₂ . The current flow through the coil 1710 opens a normally open contact 1692, which results in an interruption of the current flow through the pull coil 1680 and the closing of the pick-up valve 1682, and closes two normally closed contacts 1712 and 1714.

When the level switch 1620 is closed, a circuit is closed via a pull-up coil 1720 and this opens a pick-up valve 1722, this circuit being connected to the line 1684 at the potential of the terminal La via the level switch 1620, a line 1730, the switch 1362, a line 1734, the terminal 3X of the terminal strip 1738, a line 1740, the terminal 4 of a terminal strip 1742, a line 1750, a break contact 1752, a line 1754, the terminal 7 of the terminal strip 1742, the pull coil 1720, the terminal 8 of the terminal strip 1742 and a line 1760 to the terminal 2 of the terminal strip 1742 which is at the potential of the terminal L _2.

The level switch 1622 closes as often as the fiber requirement of the receiving station 1310 has been satisfied, and closes a circuit via a coil 1762, which is connected to the line 1740 at the potential of the terminal L _t via the switch 1622, the terminal 3 of the terminal strip 1742 and the coil 1762 runs to the terminal 2 of the terminal strip 1742 which is at the potential of the terminal Li. As a result of the current flow through the coil 1762, the normally closed contact 1752 is opened and the current flow through the pull coil 1720 is interrupted and the pickup valve 1722 is closed and two working contacts 1780 and 1782 are closed.

Since the Aufnähmest »tf-an 1310 the last through the

Supply source B is the station to be charged, the distribution system is now blown through. When a level switch 1622 is closed, the line 1740 at the potential of the terminal L \ is connected to the terminal 6A of a terminal strip 1790 via a line 1792, the switch 1364, lines 1794 and 1796, the switch arm 1390 and a line 1800. A circuit is then closed from terminal 6B of terminal block 1790 via lines 1802 and 1804, terminal 6 of terminal block 1666 and coils 1634 and 1630 to terminal 2 of terminal block 1666, which is at the potential of terminal L ₂ Pull coil 1634 opens the normally closed contact 1644 and interrupts the flow of current via the coil 1650, whereby the normally open contact 1670 drops and thus a further fiber supply from the supply source B into the conveying line 1300 is stopped.

The flow of current through the coil 1630 opens the normally closed contact 1640, but only after a predetermined delay. In the time between the opening of the normally open contact 1670 and the normally closed contact 1640, the pick-up valves 1682 and 1722 are opened as a result of the current flow through the pull coils 16K0 or 1720.The current flows from the line 1740 at the potential of the terminal Li via the switch 1622, the lines 1792, 1794 and a line 1810, the terminal 6 of the terminal block 1742, the line 1812, the normally open contact 1782, the line 1754, the terminal

7 of the terminal block 1742, the pull coil 1720, the clamp

8 of the terminal block 1742 and the line 1760 to the terminal 2 of the terminal block 1742 which is at the potential of the terminal L \ . In addition, the current flows from the line 1740 via the level switch 1622, the lines 1792 and 1796, the switch arm 1390, the line 1800, the terminal 6S of the terminal strip 1790, lines 1802, 1804, 1826, the terminal 6B of a terminal strip 1738, the line 1822, the switch arm 1358, lines 1824 and 1826, the terminal 6 of the terminal strip 1686, a line 1830, the normally closed contact 1714, a Line 1694, terminal 7 of the terminal strip 1686, the pull coil 1680, the terminal 8 of the terminal strip 1686 and the line 1696 to terminal 2 of the terminal strip 1686. When the normally closed contact 1640 is opened, the circuits via the pull coils 1720 and 1680 are interrupted and the system blows now periodically through until the level switch 1620 or 1622 opens and thereby indicates a need for more fiber material.

While the supply sources A and B feed their assigned receiving stations, the supply source C independently of this feeds the receiving station 1312 assigned to it Normally closed contact 1852 closes. The interruption of the current via the coil i860 allows a normally closed contact 1868 to be closed, with a circuit being closed which is supplied via the coil 1870 of a conveyor relay 1872 from the terminal L \ via an ON-OFF switch 1874, a line 1876, the normally closed contact 1868, a ON-OFF switch 1877, the coil 1870 and a line 1878 to terminal 2 of the terminal strip 1880. The current flow through the tension coil 1870 closes the normally open contact 1882 after a short delay and initiates the supply of fiber material from the supply source Cin to the conveyor line 1300.

When you open the level switch 1840 is also a circuit closed via a pull coil 1900.

This circuit runs from the terminal U via the ON-OFF switch 1874, the normally closed contact 1852, the terminal 1 of the terminal strip 1880, lines 1902 and 1904, the terminal 10 of a terminal strip 1906, a line 1908, the switch arm 1384, a line 1910 , the terminal 4 of a terminal block 1918, a line 1912, a break contact 1914, a line 1916, the terminal 7 of the terminal block 1918, the pull coil 1900, the terminal 8 of the terminal block 1918 and a line 1920 to terminal 2 of the terminal block 1918, which on the potential of terminal L ₂ . The flow of current through the pull coil 1900 opens a pick-up valve 1926 so that the receiving station 1312 can be fed from the supply source Cher.

When the level switch 1840 closes and ι ■> thereby indicating that the receiving station 1312 has received enough fiber material, the current flows through the Pull coil 1930 from the on the potential of the clamp

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LiI 1IVgUIIUVII LAIIUlIg β ^ M% r uin.1 uwii ■ ui t. » tut tu. «« i tu 11 ν · 1840, the terminal 3 of the terminal strip 1918 and the pull coil 1930 to terminal 2 of the terminal strip 1918, which is at the potential of the terminal Li . The current flow through the coil 1930 causes two normally open contacts 1940 and 1942 to close and the normally closed contact to open in 1914.

Since the receiving station 1312 is the only station that feeds from the supply source C in this example is, by closing the level switch 1840, the blowing of the supply source C assigned distribution system initiated. This now creates a circuit through the coils 1850 and 1860 from line 1910 via level switch 1840, one line 1950, switch 1385, lines 1956 and 1958, switch arm 1390, line 1962, terminal 6C of terminal block 1906, lines 1966 and 1968, terminal 6 of a terminal strip 1880 and the coils 1850 and 1860 for terminal 2 of the terminal strip Manufactured in 1880. The current flow through the coil 1860 opens the normally closed contact 1868 and interrupts it the current flow through the coil 1870, which further opens the normally open contact 1882 and thus the supply of Fiber material through the supply source Cin the conveying line 1300 is interrupted. The switch 1852 delayed opening for a few seconds. During this period the valve is held in 1926 by an electric circuit that is supplied by the pull coil 1900 from the am

P * - »iontial at * r liUmmp /. Ιΐρσ-pnripn I ρΐΐιιησ 1Q5O i'ihpf

the switch 1385. the line 1956, the terminal 6 of the terminal strip 1918. a line 1980. a working contact 1942. the line 1916, the terminal 7 of the terminal strip 1918, the pull coil 1900, the terminal 8 of the terminal strip 1918 and the line 1920 runs to terminal 2 of the terminal block 1918. After opening the normally closed contact in 1852, the system blows repeatedly! ! by until the fuII ₁ limit switch 1840 opens a unc -> ninth demand for fiber material displays.

For this purpose 4 sheets of drawings

Claims (4)

Claims; 1. Device for the pneumatic loading of a number of receiving stations, each provided with a demand indicator device, with a common supply line to which the individual receiving stations are connected via discharge locks, and with an automatic control device which, depending on the demand indicator, opens the loading of the individual receiving stations controls the assigned discharge locks, whereby two or more supply sources are connected to the common supply line and the receiving stations can be assigned to the supply sources through shut-off valves switched on in the supply line, and with control means which determine the loading according to the selected assignment of the receiving stations to the supply sources Pat £ 2t 1588 1933, characterized in that each receiving station (650-654; 1000, 1042, 1044; 1302-1312) has switching devices with at least one single switch (e.g. 690 in FIG. 1 and 1356 in FIG. 3) are assigned, which has a number of positions corresponding to the number of supply sources (A, B, C) , each of which indicates a single supply source feeding this station, and that the switching device is connected to a control unit which controls the The supply of material from the supply sources via the conveyor (676, 678; 1004, 1036; 1300) to the receiving stations is effected according to the position of the individual switch in such a way that only one supply source is used to feed a given receiving station 2. Device according to claim I, characterized in that that the single switch is a multi-position selector switch (multiple switch). 3. Apparatus according to claim 2, characterized in that for defining the charging process for individual pick-up stations the multi-position selector switch has a selector position, in the one blocking of the associated receiving station for a supply of goods from any of the Sources of supply takes place. 4. Device according to one of the preceding claims, characterized in that the controller the shut-off valves (835; 1064, 1066) assigned to the receiving stations can take place in such a way that that all receiving stations are fed from only one supply source.