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EP0014923B1 - Procédé pour emballer des matériaux fibreux en balles et presse pour sa mise en oeuvre - Google Patents

Procédé pour emballer des matériaux fibreux en balles et presse pour sa mise en oeuvre Download PDF

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Publication number
EP0014923B1
EP0014923B1 EP80100660A EP80100660A EP0014923B1 EP 0014923 B1 EP0014923 B1 EP 0014923B1 EP 80100660 A EP80100660 A EP 80100660A EP 80100660 A EP80100660 A EP 80100660A EP 0014923 B1 EP0014923 B1 EP 0014923B1
Authority
EP
European Patent Office
Prior art keywords
press
bale
devices
containers
packaging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP80100660A
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German (de)
English (en)
Other versions
EP0014923A1 (fr
Inventor
Siegfried Rewitzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vepa AG
Hoechst AG
Original Assignee
Vepa AG
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25777858&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0014923(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19792906229 external-priority patent/DE2906229A1/de
Priority claimed from DE2911958A external-priority patent/DE2911958C2/de
Application filed by Vepa AG, Hoechst AG filed Critical Vepa AG
Publication of EP0014923A1 publication Critical patent/EP0014923A1/fr
Application granted granted Critical
Publication of EP0014923B1 publication Critical patent/EP0014923B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3075—Presses specially adapted for particular purposes for baling; Compression boxes therefor with press boxes on a movable carrier, e.g. turntable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3078—Presses specially adapted for particular purposes for baling; Compression boxes therefor with precompression means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/12—Baling or bundling compressible fibrous material, e.g. peat
    • B65B27/125—Baling or bundling compressible fibrous material, e.g. peat and wrapping or bagging

Definitions

  • fibrous material such as. B. staple fiber flakes to collect in so-called carousel presses, to compress and package in several stages.
  • a press is described for example in DE-A-2 523 043 with reference to FIGS. 1 and 2.
  • the fibrous material is first collected and pre-pressed in the one box of a press box pair rotatable about a vertical axis and then exposed to the action of the main press die after the press box pair has been rotated through 180 °.
  • So-called lacing grooves which are provided in the press ram of the main press and in the bottom pressure plate and also in the side walls of the press box, serve to reinforce the bales produced.
  • the side walls of the press box are designed as doors that can be opened when carrying out these operations.
  • Carousel presses of this type are usually connected to every fiber production line. This is disadvantageous not only because the machine is expensive due to its large volume and large dimensions, but also because it requires a lot of operating personnel to operate it, since the packaging material and usually also the reinforcement tapes must be inserted by hand. In addition, considerable dead times occur in the main press part of such a carousel press, since the working rhythm is generally predetermined by the speed at which the pre-press is filled.
  • main press In order to ensure better utilization of the main press, it was recommended in DE-B-2 042 004 to combine a main or central press with two or more pre-presses and to use boxes for pre-pressing and for transporting the pre-pressed goods, which were individually ordered Circular paths are transported from the respective pre-press to the main press and back.
  • the main press has a bale chamber in which the pre-pressed bales delivered in the boxes are finished pressed and packaged.
  • Such a double carousel press allows better utilization of the main press part, but the guidance of the boxes on circular paths results in such low elasticity when the boxes are used that even brief failures of the main press lead to stoppages of the upstream fiber lines.
  • the invention has for its object the method known from DE-B-2 042 004 for packaging fibrous material in bales by multi-stage pressing with several pre-presses, in which the material pre-pressed in box-shaped, doorless containers, optionally with switching on of waiting positions, is conveyed to a central press, in which the pre-pressed material is pressed into a bale and then packed, and in which the empty containers are fed to the pre-presses are transported back and the associated press system for the multi-stage pressing of fibrous material in bale form and packaging these bales with flat packaging materials and reinforcements, consisting of several pre-presses, each with a depositing device, and a central press, in which the goods are pre-pressed in a box-shaped, doorless container delivered to the pre-press and conveyed to the central press by means of transport for finishing presses and packaging and the empty containers are returned after delivery of the bales, so that the number of pre-presses is practically not limited to two presses and that the process and press system are used equally
  • this object is achieved procedurally in that containers are used for packaging fiber flakes or thread cables, which are designed for the pressing pressure of the central press and have a removable base plate from the one-piece jacket part, that the containers from the pre-presses to the working rhythm of these Presses independently working central press are conveyed on one or more non-circular tracks, if necessary with intermediate storage, the containers are taken over by the central press in any order, after the goods have been finished pressed in the container by the central press by means of a stamp the jacket part of the container while maintaining the Pressing pressure is completely removed from the bale and the bale is packaged and reinforced in a casing and removed from the central press after the press ram has been moved back and the base plate and the casing part for return transport on one or more non-circular tracks are reunited.
  • the invention enables the assignment of three and more pre-presses to the main press. It can be used to produce a large number of fully compressed bales in the unit of time. It enables complete packaging, including reinforcement of the finished pressed bales, if necessary also in a fully automated manner. It is also essential that the press system does not force the upstream fiber lines to be switched off within minutes if the main press malfunctions.
  • An essential idea of the invention is the elimination of the coupling of depositing and pre-pressing devices with the central press.
  • the central press can thus be used for several fiber lines.
  • the pre-pressed fibrous material is transported in the containers referred to below as the press container by suitable devices from the depositing and pre-pressing devices to the central press.
  • the pre-pressing of the fibrous material therefore takes place in a plurality of pre-presses which are independent of one another and are each assigned to corresponding fiber lines.
  • the fibrous material to be pressed is collected and pre-pressed in the usual manner in the transportable press container with a removable base plate in a pre-press; the filled press containers are then transported to the central press on a non-circular path, and after taking over the respective press container, possibly without a base plate in the central press, the pre-pressed material in the transportable press container is affected by the action of the press ram of the central press for a fraction of the volume compressed.
  • the press container is then completely removed from the material under pressure and the bale is packed.
  • the freely accessible side surfaces of the bale are preferably covered with a sheet of packaging material.
  • the protruding areas of the packaging material are previously exposed to the action of e.g. flat or rod-shaped hold-downs bent and held on the surface of the bale.
  • the protruding areas of the packaging material By defining the protruding areas of the packaging material, subsequent unimpeded reinforcement of the bale with tapes or wires is possible.
  • the jacket part of the press container can be a body which is open at the top and bottom and is preferably of rectangular cross section, the lower opening of which is closed by the releasable base plate.
  • Holding devices on the open jacket part of the press container and the base plate ensure that the material to be pressed does not move out of the during the pre-pressing and transport can penetrate the lower opening of the press container.
  • Known backflow devices which prevent the pre-pressed material from swelling out between the individual pre-pressing steps and during transport to the central press, can be arranged near the upper opening of the casing part during the pressing of fiber flake. Suitable backflow devices and their mode of operation are described, for example, in DE-B-1 938 602; however, other systems of the same type can also be used.
  • the transportable press containers not only have to withstand the press pressure of the pre-press, but also that of the central press, they preferably have reinforcing ribs or the like on their outer sides, while the inner surfaces of the jacket-shaped part and the base plate are preferably smooth and without depressions or grooves. Due to the lack of lacing grooves and in particular due to the box-like shape without doors, it is possible to keep the weight of a press container including the backflow devices and the detachable base plate so low that the transport of such a container can be carried out without difficulty with the aid of conventional means of transport even when filled , such as roller or rail tracks, floor conveyors, monorails or the like, is possible.
  • Wheels can be arranged on the base plates of the press boxes, which serve as transport devices for the press containers. It is possible, for example, to guide the press container using these wheels on a rail system which can be equipped with switches, turntables, siding and the like for the intermediate storage of the press container.
  • the transport devices can also consist of a roller conveyor system, for example.
  • the base plates of the press containers would have to have a smooth lower surface without projections and the like.
  • Roller conveyors of this type have proven themselves for the horizontal conveyance of heavy piece goods; they can contain driven rollers which facilitate the further transport of the containers.
  • Floor lift conveyors such as forklifts or towed conveyors, are also suitable for transporting the press containers from the storage and pre-pressing devices to the central press and back again.
  • Such conveyor systems are characterized in particular by their spatial mobility, since they are not tied to specific tracks or track and switch systems.
  • it can be advantageous to design the base plates of the press containers in the manner of transport pallets.
  • the transport devices act on the base plate of the press container.
  • a suitable transport device would also be provided, for example, by a hanging rail track with appropriate tracks and switches.
  • the press containers would have to have suitable devices on the outer surfaces of their box-shaped part, e.g. Have hooks or the like, which allow a connection to the monorail system.
  • the use of a monorail system as a transport device can be advantageous since such transport devices are suitable for being able to be combined with the transfer and conveying devices to be described later.
  • the central press required for the method according to the invention must have a particularly powerful press ram which is preferably to be operated hydraulically.
  • the required counter pressure plate can be firmly anchored to the ground as a floor pressure plate.
  • the central press does not necessarily have a press box connected to it. Instead, devices must be provided which allow the press containers transported to the central press to be taken over into the central press and to be fixed in the press position.
  • Such transfer devices can consist, for example, of a gripper system which is able to grip a press container transported to the central press and to transport the jacket part of this press container without a base plate over a surface such that no pre-pressed material can escape from the lower opening of the jacket part.
  • a gripper system which is able to grip a press container transported to the central press and to transport the jacket part of this press container without a base plate over a surface such that no pre-pressed material can escape from the lower opening of the jacket part.
  • conveyors must intervene which allow the casing part of the press container to be completely removed from the material pressed into a bale.
  • These conveyors can be provided as separate devices in the press and e.g. Pull the jacket part of the press container up or down using gripper systems.
  • a superstructure press is preferably used as the central press, the press system of which rests on a yoke that is supported by columns.
  • the distance of these columns from the press container in the press position or the bale produced should be selected so that after removing the press container all side surfaces of the bale are accessible without hindrance. So it is possible to easily press the pressed bale if necessary, pack and reinforce fully automatically.
  • press stamps and bottom pressure plate of the central press have lacing grooves that are required for later strapping.
  • the press stamp and the bottom pressure plate must be covered with a blank of the desired packaging material. This covering e.g. with a plastic film is sufficient to prevent the pressed material from penetrating the lacing grooves.
  • These packaging material blanks later cover at least the end faces of the pressed bale.
  • packaging material blanks can be introduced, for example, in such a way that bottom pressure plate and stamp of the central press are each provided with such a blank before a press container is inserted into the central press with the aid of the transfer device.
  • the location of the packaging material blanks can be e.g. can be fixed by clamps, retainers or by the action of suction nozzles.
  • the packaging material blank for covering the lower end face of the bale on the base plate of an empty press container and projecting ends of this blank z. B. with the help of clips on the box-shaped part of the press container.
  • the packaging material blanks for the end faces are chosen to be so large that the excess surfaces of these packaging material blanks which protrude after the pressing are sufficient to cover all the side surfaces after overturning, even overlapping.
  • the packaging material blanks for the end faces are chosen to be so large that the excess surfaces of these packaging material blanks which protrude after the pressing are sufficient to cover all the side surfaces after overturning, even overlapping.
  • such a procedure generally leads to difficulties in pressing, since relatively large amounts of packaging material lie around the sinking press ram and even after the pressing box has been removed, difficulties can arise in bending the protruding packaging material blanks onto the side faces. There is also the risk that the protruding surfaces of the packaging material blanks can be damaged during the pressing process.
  • packaging blanks are preferably used that only protrude slightly from the end faces of the pressed bale.
  • an outstanding length of approx. 10 cm on each edge of the bale has proven itself.
  • the side surfaces of the bale are encased with a sheet-like blank of packaging material, care being taken to ensure that the sheet covering the side surfaces is held in position until the baling of the bale is complete.
  • This can be done in a simple manner, for example by welding, stitching, sewing or the like of the overlapping ends of this web under a certain pretension; but it is also possible to use the ends of this web by using z.
  • these hold-down devices can also be mounted in frames which are brought close to the finished wrapped bale.
  • the protruding edge surfaces can be folded over once in the direction of the side surfaces or in the direction of the end surfaces of the bales. If a transfer to the end faces is preferred, both the press ram and the bottom pressure plate must have an annular outer part that can be moved independently of the position of the main part.
  • the bale already wrapped with packaging material can be reinforced in the usual way by tensioning wires, steel strips or the like. It is easily possible to have this reinforcement carried out by automatically working devices that are attached to the frames, for example, that already carry the hold-down devices.
  • the bale After retracting the hold-down device and the main press ram, the bale is free on the floor pressure plate and can be removed from the press.
  • the empty jacket part Before pressing the contents of the next press container, there is the empty jacket part to be removed from the press with the aid of the conveyor and transfer device; it is expediently immediately placed back on the associated base plate.
  • the empty jacket part lowered by the conveying devices can, for example, also be taken over by a further gripper device which sets it down at another suitable point while the transfer device is already transferring the next full press container into the central press. In this case, it is of course necessary to transport the associated base plate separately to a point at which the second gripper device can reunite the casing part and the base plate of the press container.
  • FIG. 1 shows in schematic form the spatial assignment of the presses of a press system.
  • FIG. 2 shows a pre-press with a transportable press container.
  • FIGS. 3 to 8 show different processes in the central press, in FIG. 3 the transfer device, in FIGS. 4 and 5 the final pressing state, in FIGS. 6 to 6b an automatic wrapping device for the side surfaces of the bale, in FIG. 7 the bending of the protruding packaging surfaces by holding down and in Figure 8 the execution of the reinforcement were particularly emphasized.
  • FIG. 9 shows another embodiment of the central press and the hold-down devices required.
  • Figure 10 shows another press system with a pre-press for fiber flake and a pre-press (laying device) for cable tape.
  • FIG. 1 shows a possible spatial arrangement of the individual parts of the press system according to the invention.
  • three pre-presses 1 are connected to the central press 4 via transport devices consisting of roller conveyors 2, 8.
  • the fibrous material to be pressed is collected and pre-pressed in the pre-presses 1, and the filled press containers 3 are transported to the central press 4 via the roller conveyor 2.
  • the main pressing process takes place.
  • the finished pressed material is still provided by the automatically operating wrapping device 5 with packaging material for the side surfaces and, after reinforcement, e.g. with steel belts, as ready-to-ship bales 7.
  • the empty press containers 6 are transported back to the pre-presses 1 on the second roller conveyor 8.
  • the roller conveyors 2 and 8 are drawn in the vicinity of the preliminary presses, each with open ends, to indicate that, for example, further preliminary presses 1 can be included in this system or that further empty press containers 6 or filled press containers 3 can be in reserve at these open ends .
  • storage devices according to DE-B-1 239 656 can also be connected for storing pre-presses of thread cables, provided that these cable supports are set up to enable storage and pre-pressing in the empty press containers 6.
  • a preliminary press is shown in FIG.
  • the material to be pressed falls through a filling shaft 12 and through the upper housing 11 of the pre-press into a transportable press container which consists of the box-shaped casing part 13, automatically working backflow flaps 14 and a detachable base plate 15.
  • the fibrous material is compressed under the action of the press ram 10, which can be moved via a piston rod 9, and results in the pre-pressed material 20.
  • the box-shaped casing part 13, which is preferably rectangular or square in cross section, is detachably connected to the base plate 15 via a holding device 18.
  • This holding device can consist, for example, of a tongue and groove guide, as can be found in the simplest form in drawers.
  • a packaging web 19 was inserted for the later lower end face of the bale before the box-shaped casing part 13 was joined to the base plate 15. Wheels 17, which were connected to the base plate 15 via a base plate substructure 16, serve as transport devices here.
  • the pre-pressing usually takes place in such a way that the loose, fibrous material first accumulates in the interior of the box-shaped press container and the interior of the upper housing 11 and is pressed together in the press container by lowering the press ram 10.
  • the filling process is continued and the fibrous material is pre-compressed by alternately filling and lowering the press ram 10 in the interior of the box-shaped press container.
  • the known backflow flaps 14 serve to prevent the pre-pressed material from swelling out of the cylindrical jacket part 13.
  • the position of the backflow flaps 14 can be controlled, for example, as a function of the position of the press ram 10.
  • the jacket part 13 together with the base plate 15 can be transported away from the area of the pre-press with the help of the wheels 17.
  • An empty container then moves into its place, the base plate 15 of which is also covered again with a packaging web 19.
  • the exact position of the press container relative to the press ram 10 can be ensured by suitable locking devices, not shown.
  • the press container filled with pre-pressed fiber material 20 can now be transported to the central press on a flat surface. This transport can be facilitated, for example, by a drive (not shown) or by pulling devices.
  • FIG. 3 shows a filled press container ter with base plate 15 and a combined transfer and conveying device 21 shown.
  • the transfer and conveying device which consists of a gripper device 22 for pulling off the jacket part 13, an upper roller carriage 24 and a rail system 25, the jacket part 13 of the press container is moved horizontally into the working area of the press ram 27 of the central press, the holding devices 18 allow the base plate 15 to be detached from the jacket part 13. Holding devices, not shown, ensure that the packaging web 19 does not change its position during this movement.
  • the connection between the gripper devices 22 and the casing part 13 of the press container takes place via suitable holding devices 23.
  • the central press punch 27 is divided in the present case into a core punch 27a and an outer part 27b which surrounds the core punch 27a in a ring.
  • the position of the press ram 27 is brought about by a drive, not shown, via the piston rod 26.
  • the bottom pressure plate 29, like the associated press ram, is divided into a core pressure plate 29a and an outer part 29b, which surrounds the core pressure plate in a ring.
  • the exact position of the jacket part 13 of the press container relative to the press ram 27 and the bottom pressure plate 29 can be achieved by suitable locking means, not shown, which act, for example, on the transfer and conveying device 21.
  • lacing grooves 28 are also provided both in the press ram 27 and in the bottom pressure plate 29, which enable the bale to be reinforced later in the pressed state.
  • FIG. 4 shows the actual pressing of the fibrous material with the help of the press ram 27.
  • the jacket part 13 of the press container is held by the gripper device 22 of the transfer and conveying direction 21.
  • the gripper device 22 of the transfer and conveying direction 21 For carrying out the method, it is essential that, before the pressing die 27 is lowered, the upper end face of the press box or the pressing surface of the pressing die 27 has been covered with a packaging web 30 for the upper end face of the bale 31.
  • the previous application of the packaging webs 19 and 30 for the end faces of the later bale is necessary for several reasons.
  • these tracks serve to ensure that the lacing grooves 28 of the press ram 27 and the bottom pressure plate 29 do not move with the goods to be packaged and thus lead to a hindrance to the subsequent reinforcement, but also possibly to contamination of the packaged material. It is therefore not necessary in the method according to the invention that the same fiber material is accumulated and pre-pressed in all pre-presses 1.
  • the method according to the invention permits the packaging of different fibrous goods, that is to say also differently colored fiber flakes.
  • the packaging webs 19 and 30 there is a risk that fiber material from an earlier pressing process remains in the lacing grooves 28 and that other fibrous material will remain in the latter during a later pressing process.
  • the packaging material also has the task of protecting the material pressed into a bale 31 from contamination during later transport and storage.
  • FIG. 6 shows the automatic wrapping of the now exposed side surfaces of the bale 31 with packaging material with the aid of an automatically working wrapping device.
  • the press ram is shown in cross-section in FIG. 6, as in the previous figures, while FIGS. 6a and 6b illustrate the timing of the wrapping process in the supervision.
  • FIG. 6 again shows the pressed bale 31, which has packaging webs 19 and 30 on its end faces.
  • the side surfaces of the bale are now covered by a third packaging blank 41.
  • This third packaging material blank 41 comes from a supply roll 32 which is held by arms 33.
  • FIG. 6 a The actual packaging process is shown in Figures 6a and 6b in chronological order. While in FIG. 6 a one end of the packaging material web 35 is held by the swivel device 37 attached to the support arms 36 and the supply roll 32 is swung out far with the help of the swivel arms 33 and the pneumatic actuator 39, the entire device is moved onto the with the help of the transport carriage 40 pressed bale 31 closed and thereby reaches the end position, which is shown in Figure 6b. By moving the entire wrapping device 5 and by an additional pivoting movement of the arms 33 about the pivot point 34 and the pivoting of the pivoting device 37, all side surfaces of the bale 31 are enclosed by the packaging material web 35.
  • a separating and welding device 38 ensures a connection of the overlapping ends of the packaging material web. Due to the pretension with which the covering was carried out and the subsequent welding of the separated web, the position of the web is simultaneously fixed. Subsequently, the supply roll 32 is pivoted back by moving the arms 33 and the transport carriage 40 is moved back. As soon as the automatically operating wrapping device 5 has reached the position according to FIG to care.
  • FIG. 7 shows the hold-down devices 42a fastened to the support frame 44 in the pivoted-in state, while the hold-down devices 42b of the support frame 43 are already in the swung-out working position.
  • the pivoting movement of the hold-down device about its pivot point can be carried out by suitable drive devices, which, however, have not been shown in the figure.
  • the annular outer part 27b of the press ram and the annular outer part 29b of the bottom pressure plate 29 can be moved by suitable movement devices, e.g. B. hydraulic control piston. They have suitable incisions which, when the parts 27b and 29b are returned to the starting pressing position, make it impossible to damage the pivoted down hold-down devices 42b.
  • suitable movement devices e.g. B. hydraulic control piston. They have suitable incisions which, when the parts 27b and 29b are returned to the starting pressing position, make it impossible to damage the pivoted down hold-down devices 42b.
  • the hold-down devices 42b can be retracted, since the parts 27b and 29b now fix the protruding ends of the packaging material surfaces in their bent position on the end faces of the bale.
  • FIG. 9 A variant of the method and the required central press is shown in Figure 9.
  • neither the press ram 27 nor the bottom pressure plate 29 is divided into core and outer parts.
  • the packaging medium surfaces of the packaging material webs 19 and 30 which protrude beyond the end surfaces of the bale are not bent onto the end surfaces, but onto the side surfaces, with the aid of hold-down devices 47a, b and 49a, b.
  • the lever-like hold-down devices 49a, b embedded in the recesses 46 of the press ram 27 can carry out their pivoting movement with the aid of conventional drive devices, not shown.
  • the hold-down device 49a is drawn in the pivoted-in position, while the hold-down device 49b is in the working position.
  • the hold-down devices 47a, b which can be moved with the aid of a pneumatic drive 48, are let into the bottom pressure plate 29. In contrast to the hold-down devices described so far, the hold-down devices 47a, b only perform an up and down movement.
  • the hold-down device 47a is drawn in the retracted position and the hold-down device 47b in the extended position.
  • the packaging and arming of the bale 31 is advantageously carried out as follows when using a device according to FIG. 9: After the press ram 27 has been lowered and the hold-down devices 47b and 49b have been extended into their working position, the side surfaces are wrapped with a sheet of packaging material 35 Packaging material web was chosen so that it does not exceed the height of the side surfaces of the bale when pressed. In this case, the packaging material web can be applied to the side faces in the manner already described with reference to FIGS. 6a and b. In this variant of the method, the side surfaces are wrapped with packaging material with hold-down devices 47b, 49b already extended. After the packaging material web for the side surfaces has been fixed by welding, stapling or the like, the bale is first reinforced.
  • the lower hold-down devices 47b are then retracted while the press ram 27 is raised with the hold-down devices 49b still extended. This procedure enables the hold-down devices to be closed from their position between the individual packaging means cuts are removed, and the bale is ready for removal.
  • FIG. 10 A further embodiment of the invention is shown in FIG. 10, in which two laying and pre-presses 1 are provided for fiber flake and 50 for cable tape.
  • the endless cables 47 and 58 come from the associated fiber lines. While the cable 58 is deposited and pre-pressed directly as a cable band, the endless cable 57 is first cut in the cutting machine 59 and then falls into the pre-press 1.
  • the storage and pre-pressing devices 1 and 50 are in turn connected to the central press 71 via routes 51 to 53 and 66 to 68.
  • the transportable press containers are, as already described above, filled with fibrous material in the depositing and pre-pressing devices, which is then pressed in these press containers in the central press 71.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Press Drives And Press Lines (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (13)

1. Procédé pour emballer une matière fibreuse sous forme de balles, par pressage en plusieurs étapes à l'aide de plusieurs presses initiales (1, 50), selon lequel la matière pré-pressée dans des récipients (3) sous forme de caissons sans portes est transportée, le cas échéant, avec interposition de positions d'attente, jusqu'à une presse centrale (4, 71), dans laquelle la matière pré-pressée est terminée de pressage à chaque fois sous forme d'une balle et est ensuite emballée et selon lequel les récipients vides (3) sont transportés en retour jusqu'aux presses initiales, caractérisé en ce que, pour l'emballage de flocons de fibres ou de câbles de fils, on utilise des récipients (3) qui sont conçus en fonction de la pression de pressage de la presse centrale (4, 71) et qui comportent une plaque de fond (15) séparable de la partie périphérique monobloc (13), en ce que les récipients (3) sont transportés depuis les presses initiales (1, 50) jusqu'à la presse centrale (4, 71), fonctionnant indépendamment du rythme de travail des presses initiales, sur une ou plusieurs voies n'ayant pas une forme circulaire, le cas échéant, avec un stockage intermédiaire, les récipients (3) sont transférés à partir de la presse centrale (4, 71) dans une séquence quelconque, après le pressage final de la matière se trouvant dans le récipient (3) par la presse centrale (4, 71) à l'aide d'un poinçon (27), la partie périphérique (13) du récipient (3) est enlevée complètement de la balle en conservant la pression de pressage et la balle est emballée dans une enveloppe et cerclée et, après le mouvement de retour du poinçon de pressage (27), elle est enlevée de la presse centrale (4, 71), et la plaque de fond (15) et la partie périphérique (13) sont à nouveau réunies en vue du transport en retour sur une ou plusieurs voies n'ayant pas une forme circulaire.
2. Procédé selon la revendication 1, caractérisé en ce que, en fonction de la hauteur, on utilise des récipients divisés en deux parties et, après la dépose et le pré-pressage de la matière fibreuse dans une enveloppe servant à l'emballage, la partie supérieure du récipient en deux parties est écartée et seulement la partie inférieure du récipient est transportée, en même temps que la matière pré-pressée (20) jusqu'à la presse centrale (4, 71) .
3. Procédé selon la revendication 1, caractérisé en ce que la matière fibreuse est déposée dans un récipient (3) et est pré-pressée, la plaque de fond (15) du récipient est pourvue d'une bande de ma- tièred'emballage (19) en dépassement, le récipient rempli (3) est recouvert, après le pré-pressage, au plus tard dans la presse centrale (4, 71), sur sa surface frontale supérieure par une autre bande de matière d'emballage (30) en dépassement et, après l'écartement de la partie périphérique en forme de caisson (13), les surfaces latérales de la balle (31) sont recouvertes par les bandes de matière d'emballage (19, 30) en dépassement en haut et en bas et ensuite la balle est cerclée.
4. Procédé selon la revendication 3, caractérisé en ce que, après que la matière terminée de pressage a été libérée de la partie périphérique (13) du récipient, les surfaces latérales de la balle, qui sont maintenant librement accessibles, sont encore enveloppées avec une bande de matière d'emballage (35), les surfaces de la matière d'emballage en dépassement étant rabattues par action de contre-appuis (42, 47, 49) et étant maintenues appliquées contre les surfaces de la balle, et seulement ensuite la balle est cerclée.
5. Procédé selon la revendication 4, caractérisé en ce que les surfaces latérales de la balle sont enveloppées avec une bande de matière d'emballage (35), dont la largeur correspond à peu près à la hauteur de la balle pressée, et la bande est maintenue dans cette position jusqu'à la termina- tion du cerclage effectué à la suite.
6. Procédé selon la revendication 4, caractérisé en ce que, après l'opération de pressage principal et après l'écartement de la partie périphérique (13) du récipient, les surfaces latérales de la balle (31) soumises à une pression de pressage dans la presse centrale (4, 71), sont enveloppées avec une bande de matière d'emballage (35), dont la largeur est supérieure à la hauteur de la balle terminée (7), et la bande est maintenue dans cette position, ensuite des parties extérieures de forme annulaire (27b, 29b) du poinçon de presse (27) et d'une plaque de base (29) de la presse sont écartées de la balle (31) soumise à la pression de pressage, dans des volumes libres ainsi créés les surfaces de la matière d'emballage qui dépassent des surfaces frontales sont rabattues, à l'aide de contre-appuis (42, 47, 49) sur les surfaces frontales de la balle et sont maintenues dans cette position jusqu'à ce que, après un mouvement de retrait des parties extérieures de forme annulaire (27b, 29b) du poinçon (27) et du plateau de base (29) de la presse, le cerclage de la balle puisse être effectué.
7. Procédé selon une des revendications 4 à 6, caractérisé en ce que le maintien de la bande de matière d'emballage (35) enveloppant les surfaces latérales de la balle (31), à l'endroit prédéterminé, est effectué par soudage, par collage, par agrafage, par couture ou par fixation des deux extrémités de cette bande (35).
8. Ensemble de presses pour un pressage en plusieurs étapes d'une matière fibreuse sous forme de balles et pour un emballage de ces balles avec des matières d'emballage en forme de feuilles et des cerclages, se composant de plusieurs presses initiales (1, 50) pourvues chacune d'un dispositif de dépose et d'une presse centrale (4, 71), dans lequel la matière est pré-pressée dans un récipient respectif (3) en forme de caisson et sans portes, est évacuée de la presse initiale (1, 50) et est transportée à l'aide de moyens de transport en vue d'un pressage final et d'un emballage dans la presse centrale (4, 71) et les récipients vides (3) sont renvoyés après l'évacuation des balles, caractérisé en ce que:
a) la presse centrale (4, 71) est installée indépendamment des presses initiales (1, 50) et elle peut fonctionner indépendamment de leur rythme de travail,
b) les moyens de transport des récipients (3) sont déplaçables sur des voies n'ayant pas une forme circulaire et reliant les pressions initiales (1, 50) avec la presse centrale (71),
c) il est prévu des dispositifs (21) pour recevoir les récipients (3) provenant des moyens de transport et des dispositifs pour introduire les récipients dans la position de travail de la presse centrale (4, 71) et pour les faire sortir de cette position,
d) la presse centrale (4, 71) comporte des dispositifs (22) pour éloigner complètement la partie périphérique monobloc (13) de la balle soumise encore à une pression de pressage et pour réunir à nouveau la partie périphérique (13) et la plaque de fond (15), et
e) il est en outre prévu des dispositifs pour recouvrir au moins les surfaces libres des balles avec des flans de matière d'emballage, et
f) des dispositifs (45) pour cercler automatiquement les balles dans la condition pressée et emballée.
9. Ensemble de presses selon la revendication 8, caractérisé en ce que le poinçon (27) de la presse centrale (4, 71) est divisé en un poinçon central (27a) et une partie extérieure (27b) l'entourant et les positions relatives des deux poinçons peuvent être modifiées pendant le processus de pressage, et en ce qu'un plateau de base (29) de la presse est divisé en un plateau central (29a) et une partie extérieure (29b) l'entourant, et en ce que la position de la partie extérieure (29b) par rapport au plateau central (29a) peut également être modifiée pendant le processus de pressage.
10. Ensemble de presses selon la revendication 8 ou 9, caractérisé en ce que la presse centrale (4, 71) comporte un grand nombre de contre-appuis (42, 47, 49) en forme de barres ou de plats qui peuvent être soit sortis du poinçon (27) et du plateau de base (29) de la presse, ou bien des châssis qui peuvent être amenés à proximité de la balle pressée (31) après enlèvement de la partie périphérique de récipient (13) et qui peuvent être à nouveau rentrés, de façon à rabattre des surfaces en dépassement de la matière d'emballage et à les maintenir contre les surfaces de la balle produite pendant un intervalle de temps désiré.
11. Ensemble de presses selon une des revendications à 10, caractérisé en ce qu'il est prévu dans une zone de la presse centrale (4,71 ) des dispositifs qui, après écartement de la partie périphérique (13) du récipient (3), peuventêtre amenés à proximité de la balle pressée (31) etpermettre un enveloppement des surfaces latérales de la balleavec une bande de matière d'emballage (35).
12. Ensemble de presses selon une des revendications 8 à 11, caractérisé en ce que la partie périphérique (13) du récipienttransportable (3) est un corps ouvert vers le haut et vers le bas, comportant des surfaces intérieures lisses et ayant une section de préférence rectangulaire, la partie périphérique (13) est obturée à sa partie inférieure par la plaque de fond séparable (15) et en ce que la partie périphérique et la plaque de fond comportent des dispositifs de maintien (18) appropriés pour permettre une liaison desdites parties pendant le pré-pressage et le transport jusqu'à la presse centrale (4, 71), et les récipients (3) comportent, pour autant qu'ils doivent être utilisés pour le pressage de flocons fibreux, dans leur ouverture supérieure des dispositifs d'arrêt (14) classiques, agissant automatiquement et qui empêchent un échappement vers l'extérieur des flocons fibreux pré-pressés.
13. Ensemble de presses selon une des revendications 8 à 12, caractérisé en ce que les récipients (3) comportent des organes entraînés de mouvement, comme des roues (17) ou des rouleaux, qui permettent un mouvement indépendant du récipient (3).
EP80100660A 1979-02-17 1980-02-08 Procédé pour emballer des matériaux fibreux en balles et presse pour sa mise en oeuvre Expired EP0014923B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19792906229 DE2906229A1 (de) 1979-02-17 1979-02-17 Verfahren zum verpacken von chemiefasern, wie insbesondere stapelfasern, in ballen und vorrichtung zur durchfuehrung dieses verfahrens
DE2906229 1979-02-17
DE2911958 1979-03-27
DE2911958A DE2911958C2 (de) 1979-03-27 1979-03-27 Verfahren zum Verpacken von faserigem Gut in Ballen sowie geeignete Preßanordnung dazu

Publications (2)

Publication Number Publication Date
EP0014923A1 EP0014923A1 (fr) 1980-09-03
EP0014923B1 true EP0014923B1 (fr) 1987-08-26

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EP80100660A Expired EP0014923B1 (fr) 1979-02-17 1980-02-08 Procédé pour emballer des matériaux fibreux en balles et presse pour sa mise en oeuvre

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EP (1) EP0014923B1 (fr)
JP (2) JPH0613330B2 (fr)
DE (1) DE3072015D1 (fr)

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DE3137344A1 (de) * 1981-09-19 1983-04-28 Vogel, Christian, Dr., 8048 Zürich Faserballenpresse
DE3218063A1 (de) * 1982-05-13 1983-11-17 Gerold Dipl.-Ing. 6073 Egelsbach Fleissner Verfahren und vorrichtung zum pressen von fasern
GB8613760D0 (en) * 1986-06-06 1986-07-09 Fiberglas Canada Inc Packaging compressible items
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Also Published As

Publication number Publication date
DE3072015D1 (en) 1987-10-01
JPS55116524A (en) 1980-09-08
JPH0613330B2 (ja) 1994-02-23
JPH04242513A (ja) 1992-08-31
EP0014923A1 (fr) 1980-09-03

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