EP2996869B1 - Système et procédés de changement de segments de rotor segmentés verticalement pour une presse rotative - Google Patents

Système et procédés de changement de segments de rotor segmentés verticalement pour une presse rotative Download PDF

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Publication number
EP2996869B1
EP2996869B1 EP14724747.2A EP14724747A EP2996869B1 EP 2996869 B1 EP2996869 B1 EP 2996869B1 EP 14724747 A EP14724747 A EP 14724747A EP 2996869 B1 EP2996869 B1 EP 2996869B1
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EP
European Patent Office
Prior art keywords
rotor
segment
segments
transfer unit
mounting
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Application number
EP14724747.2A
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German (de)
English (en)
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EP2996869A1 (fr
Inventor
Stephan Mies
Ingo Klaer
Michael Matthes
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Korsch AG
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Korsch AG
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Publication of EP2996869A1 publication Critical patent/EP2996869A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/028—Loading or unloading of dies, platens or press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/026—Mounting of dies, platens or press rams

Definitions

  • the invention relates to a system for changing vertically segmented rotor segments on a rotary press, wherein the system comprises a rotor, comprising at least two vertically segmented rotor segments, a transfer unit and a mounting carriage.
  • the invention relates to a method for installing and removing vertically segmented rotor segments.
  • concentricity presses are known with which solid particles are pressed in large numbers from powdered, dry, pourable and pourable molding compounds with the help of pressing tools and the corresponding printing stations.
  • the rotary presses are used for the production of tablets.
  • the machines are used to make cleaning tablets for dishwashers and washing machines, as well as rings for the manufacture of alkaline batteries.
  • the presses have proved successful in the production of sintered metal powder pellets and catalytic converter catalysers.
  • Rotary presses typically include a rotor having a die plate with a number of dies arranged on a pitch circle. Each die is assigned an upper and a lower punch, which are guided by guide curves. The upper and lower punches are stored in corresponding guides, which are part of the rotor. In the matrices to be pressed material can be filled via at least one filling device. The upper and lower punches are guided via a filling station, a dosing station, a pre-press station and a main printing station.
  • a disadvantage of the devices in the prior art is that in rotary presses a tool change is very time consuming.
  • a tool change that is to say a change of the pressing tools, in particular upper and / or lower punches or the dies or die inserts, but also center mandrels and Mittendornhalter for the production of annular compacts takes place during a production break, that is at a standstill of the rotary presses.
  • the larger the rotary press and the more tools to change the longer the downtime.
  • the entire rotor is replaced to reduce downtime (change rotor). This has the consequence, especially in very large machines with, for example, rotor masses of 1000 to 3500 kg that very large masses must be moved, the larger the rotary press and the larger the diameter of the rotor is a rotary press.
  • JP H06 71497 A In the JP H06 71497 A .
  • JP H04 75691 U and JP H05 131294 are described concentric presses with segmented rotors or die plates. It describes the JP H06 71497 A a die assembly, which makes it possible to assemble the press tools a rotary press.
  • the die plate consists of at least two ring segments.
  • the EP 2 082 867 A2 a fastening device for the ring segments on the rotor of the rotary press by means of driven clamping elements.
  • a rotor of a rotary press which also has a segmented die plate, and a fastening device for the die segments on the body of a lower punch guide of the rotary press.
  • the JP H04 75691 U describes a segmented rotor.
  • the JP H05 131294 A describes a segmented die plate which is attached to a central rotor unit, according to the preamble of claim 1.
  • a disadvantage of these devices is that in each case further components of the presses, in particular the curves for controlling the upper and lower punches, must be removed in order to expand or clean the rotor or die segments. Thus, the rotor change or its cleaning is associated with long service life of the machine.
  • the devices described are rather small, so that the masses to be moved when changing the rotor are comparatively small.
  • a rotary press and a method for cleaning such is described.
  • a swivel arm for transferring a complete press unit is described to a car, but is in the WO 03/020499 A1 expanded the entire press unit from the rotary press. This includes a die plate, top and bottom punches, a filling device and a stripping device for the pressed tablets.
  • the full expansion of Press unit is associated with the disadvantages described in terms of personnel and time and requires the movement, transportation and storage of several 100 kg, but less than 1000 kg heavy press unit as a whole.
  • a rotary press is described, as well as a method for the exchange of rotor components.
  • the rotor is not disassembled by vertical segmentation but is disassembled horizontally.
  • the WO 2009/112886 A1 describes how the individual rotor components, in particular die plate and an upper and lower punch guide, can be separated from each other.
  • a disadvantage of this type of expansion is that the expansion of other components of the rotary press remains required, which adversely affects the time and personnel costs when changing the rotor. In particular, a complex, time-consuming adjustment of these components is required.
  • the rotors described in the prior art are relatively small rotors with a pitch circle diameter of about 420 to 500 mm. Thus, the individual weight of the moving parts is only about 60 to 100 kg.
  • the JP H05 185 295 A discloses a rotary press, in which although upper and lower punches, so the pressing tools are interchangeable.
  • a disadvantage of this device is that it does not describe how the rotor can be removed for cleaning purposes, without expanding any additional components of the rotary press.
  • the object of the present invention is therefore to provide a device and a method which do not have the disadvantages and deficiencies of the prior art and offer an improved solution to perform a rapid tool change in a rotary press.
  • the invention relates to a system for changing vertically segmented rotor segments on a rotary press consisting of a rotor, a transfer device and a mounting carriage.
  • the rotor of the rotary press comprises in particular a rotor core and at least two rotor segments, wherein the rotor segments are formed by vertically segmenting the rotor.
  • the term vertical segmentation means that the round rotor whose base is a full circle of 360 °, is divided into preferably equal-sized rotor segments.
  • Such a vertical segmentation is known from dividing a round cake into preferably equal pieces of cake.
  • vertically segmented rotor segments are produced by dividing a round rotor ring into preferably equal segments.
  • the vertical segmentation is to be distinguished from the horizontal segmentation, in which individual rotor components, such as upper and lower punch guide or die plate can be separated from each other. Such a method is used, for example, in WO 2009/112886 A1 described.
  • the round rotor represents a circle.
  • a rotor segment is essentially delimited in plan view by an outer circular arc and two limbs, wherein the limbs represent radii of the circle and enclose an angle with one another.
  • the intersection of the two legs corresponds to the center of the circle, or the rotor.
  • the rotor core is centered around this center point. Attached to this are the rotor segments. It follows that the vertically segmented rotor segments within the meaning of the invention correspond to only substantially complete circle segments, since they can miss each of the pointed tip in the region of the imaginary leg intersection point
  • the vertical segmentation of the rotor makes it possible to expand the individual rotor segments segment by segment from the rotary press. As a result, less masses have to be moved per replacement process, which considerably simplifies the handling of the parts to be moved.
  • the individual rotor segments are smaller than the entire rotor.
  • the expansion takes place according to the invention in particular at the same position, namely between a pressure roller station and a removal device of the rotary press.
  • the rotor is rotatably in the rotary press, so that it can be rotated by an angle alpha after removal of a segment, which allows the expansion of another rotor segment.
  • the smaller circular arc length s of the segments allows the upper and lower punch curves to remain in the rotary press during the conversion during the conversion in order to control the upper and lower punches.
  • the service life of the press is shortened and reduced personnel costs, because just the installation and removal of the curves and the associated adjustment of the other components of the rotary press make a significant contribution to the total workload when changing the rotor, which is described in the prior art is.
  • the rotor of the rotary press comprises a rotor core which is detachably centered and fixed on a drive flange.
  • This rotor core can be easily disassembled advantageously.
  • At least two rotor segments are attached to the outer circumference of the rotor core.
  • six equal segments can be used and thus form the complete rotor.
  • the weight of a preferred rotor segment is in the range of 400 to 500 kg. It was completely surprising that it is possible to provide a system for changing vertically segmented rotor segments, which also enables the handling of such large masses.
  • the vertical segmentation allows the mass of a rotor segment to be moved to be of an order of magnitude such that a preferred rotor segment can be transported with a transfer unit and taken over by a height-adjustable rotary segment carousel of an assembly carriage.
  • a transfer unit to which a rotor segment manually or automatically fastened by means of fastening screws and cylinder pins and / or other positive and non-positive connection means can be.
  • the rotor segments can be transferred by a suitable movement to a mounting car. It has proved to be advantageous to provide such a transfer unit in order to make the operation of the system according to the invention as simple as possible for an operator and to minimize the applied human force during the segment change.
  • the transfer unit advantageously comprises a transfer device for taking over a vertically segmented rotor segment, which is slidably mounted on sliding and guide rails and rotatable, wherein the transfer unit by means of a centering and fastening device to a support plate of the rotary press centered fastened and a connecting device for connecting the transfer unit with having the assembly carriage.
  • the transfer device is slidably mounted by means of slide and guide rails on a base region of the transfer unit.
  • the use of sliding and guide rails allows a horizontal movement of the transfer device on these slide and guide rails, whereby the transfer device can be approximated or removed from the rotor segment to be removed from the rotary press.
  • the slide and guide rails are arranged so that they are rotatable and join in the rotational movement of the transfer device.
  • the transfer device can be moved away on the slide and guide rails of the rotary press. This removes the rotor segment from the rotary press and a rotational movement of the transfer device is possible.
  • the radius of rotation and thereby the moment of inertia of the transfer device so that the force required to perform this rotational movement is reduced.
  • the transfer unit is preferably provided with handles. Due to the rotation of the transfer device in the retracted state with a minimum radius of rotation, a space-saving device for segment replacement is also provided.
  • the transfer unit is easy to operate.
  • the transfer unit is positioned, for example, on a trolley and is positively and / or positively connected to the tool change or segment change with the carrier plate of the rotary press.
  • the trolley is a height-adjustable dolly to adjust in this way the transfer unit as needed to the current height of the respective support plate of the rotary press and to attach to the support plate. It has proven to be advantageous that the trolley is always moved when loaded in the lowered state in order to minimize the risk of tipping.
  • the transfer unit comprises a connecting device for connecting the transfer unit with a mounting carriage.
  • This connection device allows a non-positive and / or positive connection between transfer unit and assembly carriage, so that a safe transfer of the rotor segments is ensured.
  • the system for rotor segment replacement comprises a mounting carriage. It is preferred that the assembly carriage is set up to receive at least one rotor segment. It is further preferred if the assembly carriage is designed to accommodate three segments . It was completely surprising that even for rotor segments of comparatively large concentric presses, which are in the stated mass range, a mounting carriage for receiving and supporting the rotor segments according to the invention can be provided. This is made possible in particular by the vertical segmentation of the outer rotor of the rotary press and by the advantageous transfer of the rotor segment from the rotary press to the assembly carriage by the preferred transfer unit.
  • the assembly carriage comprises in a preferred embodiment of the invention, a height-adjustable rotary segment carousel for receiving at least one rotor segment, said height-adjustable rotary segment carousel is locked in particular during transport and not only at the segment change.
  • the assembly carriage comprises a resilient locking pin, which is automatically latching and the detent is easily accessible from the outside.
  • the segment carousel is height adjustable and designed to be rotatable.
  • the height adjustment of the height-adjustable rotary segment carousel is achieved by the height adjustment of the axis of rotation of the Segmenkarussels, which is realized by means of a pressure screw with lock nut, the current height is read by a vernier.
  • the weight of the height-adjustable rotary segment carousel is predominantly supported by an axial roller bearing.
  • the vertically segmented rotor segments are fastened to the height-adjustable rotary segment carousel by means of fastening screws which cooperate with bores on the rotor segments.
  • the height-adjustable rotary segment carousel has corresponding holes. It has been found to be advantageous that these mounting holes on the front side of the height-adjustable rotary segment carousel to the position of the corresponding holes in the vertically segmented rotor segments, which are mounted during the segment change operation on the transfer device of the transfer unit, in height and in the horizontal spatial direction can be aligned.
  • the assembly carriage is in particular designed to be tilt-proof and comprises, for example, two steering rollers, which can be determined in particular for easier transport.
  • the preferred embodiment of the foot or storage area of the assembly carriage allows a horizontal leveling of the assembly vehicle, which may be advantageous, for example, in uneven ground conditions. Both manual and electrical operation of the assembly truck is provided in a preferred embodiment of the invention.
  • a mounting carriage can be provided which can simultaneously accommodate a plurality of vertically segmented rotor segments and yet is easy and safe to use. Due to the vertical segmentation, the preferred rotor segments have a mass which is suitable for transport by means of a preferred assembly vehicle and the transfer by a transfer unit.
  • the assembly carriage is in particular connected frontally parallel to the transfer unit. This connection is realized by means of a connecting device and allows the fast and secure fixing of the assembly carriage to the transfer unit.
  • a connecting device allows the fast and secure fixing of the assembly carriage to the transfer unit.
  • the tools of a rotary press after their removal and Positioning on the assembly trolley protected against damage when falling down.
  • the assembly trolley is easy to clean, in particular due to its construction, the material used and its nature.
  • the rotor segments are centered and fixed to the rotor core from the outside.
  • This arrangement of the rotor core and the rotor segments to each other it is easily possible to solve the rotor segments from the rotor core and remove from the rotary press.
  • the construction of the present invention is particularly advantageous because the stable closed rotor core allows the segments to be optimized in material thickness to reduce segment weight.
  • the rotor core for each rotor segment comprises at least one guide, at least one centering, at least one support surface (support flange) and / or four threaded holes for attachment of a vertically segmented rotor segment, wherein the threaded holes cooperate with preferably four mounting screws.
  • the guide By means of the guide, the attachment of a rotor segment to the rotor core is greatly facilitated by the rotor segment is brought to the correct position relative to the rotor core.
  • a pre-centering of the segment is made on the rotor core.
  • the rotor core comprises a further centering element, which defines the position of the rotor segment in the horizontal spatial direction.
  • the arrangement of the rotor segment on the rotor core in the vertical spatial direction is ensured by the support surface or a support flange on which the rotor segment at least partially rests, which gives the connection between the rotor segment and core increased support.
  • the attachment of the vertically segmented rotor segments on the rotor core is preferably carried out by means of four fastening screws, which cooperate with four threaded holes on the rotor core.
  • the rotor has two to ten, preferably four to eight, particularly preferably six rotor segments.
  • the vertical segmentation of the rotor reduces each to moving mass and facilitates the change of the rotor.
  • the use of two to ten, preferably four to eight, more preferably six rotor segments results from the consideration that the individual rotor segments should be as light as possible, which speaks for a larger number of rotor segments, but on the other hand not an unlimited number of individual Segment change operations should be required, which would lead to longer machine life.
  • the use of two to ten, preferably four to eight, particularly preferably six rotor segments has proven to be particularly advantageous in view of this consideration.
  • the respective segment can be exchanged at the preferably defined exchange position.
  • the rotor can be completely equipped with new segments with cleaned upper and lower punches or dies by stepwise turning in six steps.
  • the replacement time is significantly lower than when each individual station has to be equipped with a new upper or lower punch.
  • other components of the rotary press such as printing stations, filling stations and the like, not be dismantled or pivoted. It was completely surprising that a rotary press can be provided with these large dimensions, in which the whereabouts of said components in the rotary press is possible.
  • the upper and lower punches automatically thread into the upper and lower punch curves after the segment change.
  • the curves in that they can remain in the rotary press during the segment change, are designed such that they consist of at least two components and can open. This makes it possible that the upper and lower punches, or the rollers, with which they interact with the curves, automatically when closing the curves when the segment change is completed, enter the curve openings and then be ready for use again.
  • the rotor consists of a rotor core, on the outer circumference of which segments are arranged, which comprise the upper punch and lower punch guides and the dies.
  • These segments are releasably positively and / or non-positively connected to the rotor core or releasably positively and / or non-positively connected to the adjacent segments.
  • This segment can then preferably be replaced by another segment which has new or refurbished tools, that is to say upper and / or lower punches and optionally dies or die inserts.
  • the upper punch guide and guide for lower punch are combined in one component.
  • the individual segments have at least one sub-segment which is individually detachably connected to the segment. In this way, it is advantageously possible, for example, to separate segment-like rotor parts from the rotor only the dies or die inserts, without the entire segment having the upper and / or lower punches having to be removed. If the tools have to be exchanged more frequently than the dies or die inserts, an optimized tool change can be carried out herewith.
  • the present invention particularly comprises tools for a rotary press, in which the shanks for the upper and lower punches depending on the punch diameter have dimensions up to diameters of, for example, 10 - 100 mm. Even if larger filling depths are required, for example 40 mm, 60 mm, 80 mm or 100 mm, this is covered by the present invention.
  • the tools may be long (eg, 250 mm and longer) and heavy (for example, 5 kg and heavier). It was completely surprising that even such tools are changed in the context of the present invention and can be part of a segmented rotor.
  • annular compacts are produced with rotary presses instead of tablets, a center mandrel and a center mandrel holder are additionally required. Rings or annular compacts are needed, for example, in the battery industry for alkaline batteries, detergents, catalysts, etc.
  • the center mandrel holder is located below the die plate but above the lower punch shaft guide. Due to the Mittendornhalterung the Unterstempelschaft extended additionally. Consequently, for the entire rotor package, consisting of the Upper punch shaft guide, the intermediate flange with the receptacle for the die plate, the attached center mandrel holder and the lower punch shaft guide the height to. It was completely surprising that tools for the production of rings by the rotor segmentation are also accessible to a faster tool change and thus the down time is significantly reduced.
  • the invention has in particular contributed to the fact that at the same process speed due to the size of the machine and the preferred use of three pressing stations on the periphery a significant increase in performance could be achieved and still compared to the prior art for very large machines, the downtime to 2 to 3 hours instead of more than 10 to 12 hours could be reduced. It was completely surprising that such a short changeover time for vertically segmented segment rotors can be achieved, which is due to the extremely advantageous interaction of the vertical rotor segmentation, the Passing through the transfer unit and the use of the assembly vehicle is due. The interaction of the individual factors causes a reduction in the changeover time, which is even lower than if only individual features were realized on a rotary press and these fictitious individual time savings would be added.
  • segmented rotor of vertically segmented segments of the present invention is not centered on the drive flange like a normal change rotor complete with the upper and lower curves, in particular the filling and metering curves, and the pressing tools with a lifting device and is locked.
  • a rotor segment for attachment to the transfer device on three holes for receiving fastening screws and two holes for receiving cylindrical pins, wherein the holes are arranged below the lower punch guide and cooperate with fastening screws and cylinder pins of the transfer device.
  • the arrangement of these holes in the area of the lower punch guide ensures good accessibility of the holes and the fasteners for people with different body sizes.
  • a rotor segment by means of four mounting screws on both the rotor core, and the height-adjustable rotary segment carousel can be fastened.
  • a system for segment change is provided, which manages with the smallest possible number of additional parts to be kept. As a result, initial costs and storage costs are reduced.
  • the connecting device of the transfer unit with the assembly carriage is a quick release closure
  • the Fishing hook is formed on the transfer unit and recesses on the assembly carriage, wherein the fishing hooks interact with the recesses.
  • the term quick release refers to a clamping device that can be solved quickly or without tools by hand or set or tension. This happens because the catch hooks, which are arranged on the transfer unit, engage in recesses with which the assembly carriage is provided, and thus produce a non-positive and / or positive connection between transfer unit and assembly carriage.
  • An advantage of using a quick-release closure is in particular that no additional tool for producing this connection must be provided.
  • it is advantageous that a quick-release closure can be opened and closed very quickly in comparison with other fastening devices, as a result of which the overall duration of the replacement process is further reduced.
  • the connecting device comprises a centering knob with which the position of the transfer unit for the assembly carriage is determined in the horizontal spatial direction. This centering knob engages in a vertically elongated centering slot, so that the height adjustment of the transfer unit to the assembly carriage is supported by this centering.
  • top and bottom punch curves can remain in the rotary press.
  • the top and bottom punch curves of the rotary press are in particular the filling and metering curves of the rotary press.
  • the positioning of the transfer unit on a support plate of a rotary press is carried out in that the transfer unit is first moved by means of a height-adjustable trolley to the rotary press. It has proved to be advantageous that the trolley is moved only in the lowered state to avoid tilting of the car.
  • the storage area of the trolley, on which the transfer unit is located is then adjusted by means of the height adjustment of the trolley to the height of the support plate of the rotary press. This makes it possible to push the transfer unit at least partially on the carrier plate of the rotary press.
  • the transfer unit is then brought into the preferred, fixed position and fastened by means of six fastening screws on the support plate. It has proven to be advantageous to perform this attachment as solid as possible in order to ensure a secure connection between transfer unit and carrier plate.
  • the trolley is then removed from the rotary press.
  • Extending and retracting for the purposes of this invention refers to the horizontal movement of the transfer device on the designated sliding and guide rails of the transfer unit. These allow a back and forth or back and forth movement in the horizontal direction, which is referred to in the context of this invention as extending and retracting the transfer device. By extending the transfer device is moved in particular to the rotor segment to be replaced, by moving back away from him.
  • the transfer device of the transfer unit is designed in particular rotatable. In this case, the rotational movement is realized about an axis of the transfer device.
  • the radius of this rotational movement is changed. This is particularly advantageous because a small radius of rotation leads to a small moment of inertia and thus to a small, expended force for the rotational movement. Furthermore, the retraction of the transfer device in the loaded state allows the rotational movement of the transfer device in the first place since the vertically segmented rotor segment first has to be removed from the rotor core by the return travel in order to generate sufficient space for the rotational movement.
  • the takeover device is fastened to a vertically segmented rotor segment after extension by means of fastening screws and cylinder pins.
  • holes are provided in the region of the lower punch guide of the rotor segment, with which the fastening screws and cylinder pins interact. The arrangement of the holes in the lower region of a rotor segment ensures that especially people with small body size can establish the attachment between the transfer device and rotor segment.
  • the vertically segmented rotor segment to be removed is released from the rotor core by loosening the preferably four fastening screws which produce the connection between rotor segment and rotor core.
  • the fastening of the rotor segments to the rotor core is effected with the same fastening means as the fastening of the rotor segments to the height-adjustable rotary segment carousel of the assembly carriage.
  • the transfer device After releasing the vertically segmented rotor segments from the rotor core, the transfer device is moved back. As a result, the rotor segment is removed from the rotary press and created sufficient space so that the transfer device can be rotated or pivoted. By turning or pivoting about an axis of rotation, the transfer device is located in the area of the height-adjustable rotary segment carousel of the assembly vehicle. By a displacement on the sliding and guide rails of the transfer device, the vertically segmented rotor segment can then be approximated to a free position of the height-adjustable rotary segment carousel. It was completely surprising that a space-saving and time-saving method for changing the segment can be provided by using the system according to the invention.
  • the vertically segmented rotor segment is then transferred to the height-adjustable rotary segment carousel of the assembly carriage and the rotor segment taken from the rotary press is positioned and fastened to the height-adjustable rotary segment carousel of the assembly carriage.
  • This is done by means of the same fastening means as the attachment of the rotor segment to the rotor core, wherein the height-adjustable rotary segment carousel has in particular suitable holes for receiving these fastening means. Due to the rotatable and height-adjustable design of the segment carousel, in particular a horizontal and vertical alignment of the corresponding bores on the vertically segmented rotor segment and on the segment carousel is made possible.
  • the segment installation is carried out essentially by the fact that the described process steps in the segment expansion done in reverse order.
  • the implementation of the method for the operator is much easier.
  • the error rate of the segment change is reduced.
  • An essential feature of the described method for segment change is that the upper and lower punch curves remain during the segment change in the rotary press. These are, in particular, control, filling and metering curves.
  • An advantage of the fate of the curves in the rotary press is in particular that thereby the segment change considerably easier and faster possible. In particular, no time-consuming readjustment of tools is necessary. This is a significant difference from the prior art methods and apparatus for changing rotors or rotor or die segments. It was completely surprising that the fate of the curves in the rotary press can be made possible during the conversion for large segment rotors.
  • the inner upper and lower punch curves of the rotary press for removal and installation of the vertically segmented rotor segments with the pressing tools open manually or automatically both during segment installation and during segment removal.
  • the upper and lower punching tools thread automatically into the curves during removal and installation of the rotor segments. This will be done ensures that the curves can be divided horizontally into two parts. When assembled, the two cam parts form a U-shaped component, the opening of the "U” pointing in the direction of the stamping tools. These stamping tools are provided with rollers which cooperate with the U-shaped opening of the curves and allow the control of the pressing tools through the curves.
  • the punch tools When changing the segment, the punch tools are pulled out of the curves and held only by a Mittendornhalter. The roles shift, for example, the lower punch to a small distance down. By horizontally separating the curve components increases the U-shaped opening of the curves, in particular, the opening also shifts down. Now, if the punch tools are moved towards the curve, the rollers of the stamp can get back into the U-shaped opening of the curve. When the two curve components are now connected again, the stamping tools are again at their position defined for the production process. This automatic threading provides a substantial facilitation of the segment change operation and makes a significant contribution to reducing the overall duration of the change operation.
  • the extension or retraction of the transfer device is realized by a linear feed and / or return movement on the slide and guide rails, wherein the feed and / or return movement is realized either manually by means of a handwheel or automated.
  • the transfer unit is provided with a handwheel.
  • This handwheel has a pinion / rack-and-pinion mechanism with which the radial movement of the handwheel is converted by a spindle drive into a linear movement of the transfer device.
  • This linear feed and / or return movement represents the extension and retraction of the transfer device in the horizontal spatial direction on the slide and guide rails, with the transfer device can be moved to the rotary press or the height-adjustable rotary segment carousel to or away.
  • a horizontal stroke of the transfer unit can be done by a spindle drive or a rack drive.
  • this is the manual, motor, pneumatic or hydraulic operation of the transfer unit allows.
  • the transfer unit can in particular safely take over masses of, for example, up to 500 kg from the rotary press and transfer them to the assembly trolley.
  • this movement can also be automated, for example hydraulically or electrically, realized.
  • any type of manual or automatic drives can be used. This is an advantage if the use of manpower is to be minimized.
  • the rotational movement of the transfer device can be realized automatically in a further preferred embodiment of the invention.
  • the rotational movement of the transfer device is a damped movement, wherein this damping is realized by an oil brake. This limits the rotational speed to be achieved by the force to be applied for the rotational movement increases with increasing rotational speed.
  • the fastening of the transfer unit to the carrier plate of the rotary press is provided at a defined position, in particular between a pressure roller station and a removal device on the carrier plate of the rotary press.
  • a pressure roller station according to the invention is a columnar device for receiving an upper and a lower pressure roller, which compress the punch tools for the purpose of producing the compact.
  • a removal device in the sense of the invention describes a device in the region of which the compacts produced can leave the rotary press. This is done via an outlet wheel, which rotates synchronously with the rotor of the rotary press and transfers the finished compact to a conveyor element or a conveyor chute.
  • the vertically segmented rotor segments can be maintained, cleaned and equipped with new tools more easily outside the rotary press. by virtue of they can also be supplied to a washing machine or industrial washing machine of their size.
  • FIG. 1 shows a schematic perspective view of a generally designated by the reference numeral 10 rotor of a rotary press 34.
  • Construction and function of rotary presses are well known to those skilled, so will not be discussed in the context of this description.
  • the rotor 10 can be set in rotation by means of a drive.
  • upper punch 50 and lower punch 30 are guided past various fixed stations. These stations are filling stations, pre-press stations, main press stations, ejection stations and the like.
  • Each pair of upper punch and lower punch is assigned a die in which a material to be pressed is filled.
  • the upper punches 50 and lower punches 30 are guided via guide curves in the dies, so that the imported material is pressed there.
  • Such rotary presses can be used for example for tablet production, but also for the production of technical products, for example pressed rings for battery production.
  • the rotor 10 comprises a rotor core 12, which is connected via connecting elements, not shown in detail, with a drive device for the rotor 10.
  • a generally designated by the reference numeral 14 outer rotor is arranged.
  • the outer rotor 14 includes a plurality of rotor segments 16, each of which rotor segment 16 spans a pitch circle. According to the embodiment shown, six rotor segments 16 are provided, each having a Cover 60 ° circle. This means that the legs, which define a rotor segment, enclose an angle of 60 ° with each other.
  • the rotor segments 16 are positively and / or non-positively connected to the rotor core 12.
  • each rotor segment 16 may also be positively and / or non-positively connected to each other at the radially extending end faces 18.
  • the attachment of the rotor segments 16 can be done for example by means of quick change elements or the like.
  • FIG. 1 a total of five rotor segments 16 are shown, wherein the sixth rotor segment 16 is removed. This makes it clear that the rotor segments 16 are each individually removable from the rotor core 12.
  • the connection between the rotor segments 16 and the rotor core 12 by the fastening screws 54, which cooperate with the bores 58, is formed so that these 34form and stable in position with respect to the rotor core 12 and the adjacent rotor segments during operation of the rotary press 16 are arranged.
  • the rotor segments 16, which together form the outer rotor 14, comprise an upper punch guide 20, a lower punch guide 22 and a die region 24. Due to the segmentation of the outer rotor 14, the die plate is also present in die segments 78.
  • the upper punch guide 20 has guides 26 for upper punches 50 in a manner known per se.
  • the lower punch guide 22 has guides 28 for lower punches 30 shown here by way of example.
  • the die region 24 has die openings 32.
  • a respective guide 26 and a guide 28 are aligned with a die opening 32, see FIG in a manner known per se, the upper punches 50 and lower punches 30 can be displaced radially in pairs via guide cams (not illustrated), so that a material to be pressed filled into the die opening 32 can be pressed.
  • rotor segments 16 can be provided that matrices or die sets for different press formats, that is, several tablet forms are available.
  • each of the rotor segments 16 has a number of guides 26 and 28, and die openings 32. According to the example shown, twelve guides 26, 28 and die openings 32 per segment 16 are provided. After further, not shown embodiments, of course, both the number of rotor segments 16, and the number of guides 26, 28 and die openings 32 per rotor segment 16 may be chosen differently. The number of rotor segments 16 may be even or odd. The rotor segments 16 may be divided evenly but also unevenly.
  • the segmentation of at least the outer rotor 14 offers the possibility that the rotor segments 16 can be disassembled individually from the rotor core 12. With the dismantling, the upper punches 50 and lower punches 30 are removed at the same time. The dismantled rotor segment 16 can then be replaced by a new rotor segment 16, which then has new or refurbished upper punch 50 and lower punch 30.
  • gradual action according to the FIG. 1 In six steps, thus all six rotor segments 16 can be exchanged with the tools arranged therein in a relatively short time. The tool change time for the entire rotor 10 can thus be kept relatively short.
  • FIG. 1 further shows the holes 66 and 70 for mounting screws 68 and cylinder pins 72, with which a vertically segmented rotor segment 16 can be attached to a transfer device 48. These are according to the invention in the area of the lower punch guide 22.
  • FIG. 1 shows the means by which the vertically segmented rotor segments 16 are centered on the rotor core 12. This is done in the vertical spatial direction by a support surface 64 on which the rotor segment 16 rests at least partially. A centering in the horizontal spatial direction is effected by the centering element 62, which cooperates with a recess, not shown, on the inside of the rotor segment 16. Further to see are centering pins 60, which allow a pre-centering of the rotor segments 16 during installation of the segments 16 to the rotor core 12.
  • FIG. 2 shows a preferred arrangement of the rotary press 34, the transfer unit 36 and the assembly carriage 38.
  • the transfer unit 36th in a starting position. This means that the transfer device 48 of the transfer unit 36 is not extended or pivoted. In this position, the transfer unit 36 is mounted on the support plate 40 of the rotary press 34 and the mounting carriage 38. Subsequently, the transfer device 48 can be extended and thereby brought into the vicinity of the rotor segment 16 to be removed from the rotary press 34.
  • the transfer unit 36 which is pivotable, for example, is used as a peripheral module for removing the rotor segments 16 of the rotary press 34.
  • This device is placed and fixed for the segment expansion, for example, in a predetermined position with a lifting device on the support plate 40 of the rotary press 34.
  • the transfer unit 36 comprises a centering and fastening device 44.
  • the attachment of the transfer unit 36 to the support plate 40 of the rotary press 34 takes place, for example, by means of six fastening screws.
  • the transfer device 48 can be extended manually or by motor to receive the rotor segment 16.
  • the transfer device 48 is mounted on slide and guide rails 74, on which the transfer device 48 executes a horizontal feed and / or return movement, which is referred to in the context of the invention as extending or retracting.
  • the vertically segmented rotor segment 16 is attached to the transfer device 48 with, for example, three fastening screws 68 and two cylindrical pins 72. Subsequently, the fastening screws 54, which fix the vertically segmented rotor segment 16 on the rotor core 12, are released.
  • the transfer device 48 is moved back to a central starting position with a minimum turning radius.
  • the device is pivoted by 180 °, for example, to the outside.
  • the mounting carriage 38th In the outer position of the transfer device 48 is the mounting carriage 38th
  • the pivotable upper part of the assembly carriage 38 forms a height-adjustable rotary segment carousel 52 and has, for example, three segment receptacles, which are arranged at an angle of 120 °.
  • the distance of the assembly carriage 38 to the rotary press 34 is predetermined, in particular by the fixed connection of the Transfer unit 36 with the assembly carriage 38.
  • the transfer unit 36 is non-positively and / or positively connected to the assembly carriage 38 and / or the support plate 40 of the rotary press 34 during the segment removal, the segment installation, the segment change and / or tool change.
  • the transfer device 48 of the transfer unit 36 When the transfer device 48 of the transfer unit 36 is in the rotated position by 180 °, the transfer device 48 is extended to the end position and the rotor segment 16 is fastened with, for example, four fastening screws 54 in the first segment position of the height-adjustable rotary segment carousel 52 of the assembly carriage 38.
  • the four fastening screws 54 are preferably the same screws with which the vertically segmented rotor segment 16 is also fastened to the rotor core 12.
  • This process may be repeated several times depending on the number of positions on the assembly carriage 38 and the number of rotor segments 16.
  • the respective empty receiving positions of the assembly carriage 38 are pivoted into the transfer position.
  • the assembly carriage 38 When the assembly carriage 38 is completely occupied, it can be exchanged for an empty assembly carriage 38.
  • six expansion steps and three assembly cars 38 are required, for example.
  • FIG. 2 further shows that the transfer unit 36 is fixed to a fixed position of the rotary press 34 on the support plate 40. This is done by means of the centering and fastening device 44.
  • the fixed position for fastening the transfer unit on the support plate 40 is located in particular between a Druckrollenstation 86 and a removal device 88, are removed with the finished compacts from the rotary press 34. These need not be disassembled by the use of the vertically segmented rotor segments 16 when the rotor 14 is replaced.
  • the transfer device 48 can be moved horizontally on slide or guide rails 74. This can either be realized manually using a handwheel 42 or automated. The radial movement of the hand wheel 42 is thereby converted by means of a pinion / rack and pinion mechanism into a linear movement of the transfer device 48.
  • the transfer unit 36 is connected during the segment change operation both with the support plate 40 of the rotary press 34, as well as with the assembly carriage 38.
  • the connection with the assembly carriage 38 is realized by means of a connecting device 46, which is designed for example as a quick-release closure.
  • the recesses 92 of the transfer unit 36 are in particular designed so that the connection between the assembly carriage 38 and transfer unit 36 is not limited to a predetermined height, but that is limited by the Design of the recesses 92 in particular uneven floors can be compensated.
  • FIG. 2 also shows the centering elements 62, which are present on the rotor core 12 for each rotor segment 16, and the support surface or the support flange 64. Through these components of the rotor core 12, the vertically segmented rotor segments 16 are centered when installed in vertical and horizontal spatial directions.
  • FIG. 3 shows the system according to the invention of rotary press 34 with vertically segmented rotor segments 16, transfer unit 36 and assembly carriage 38 during the segment change operation.
  • the rotor segment 16 to be removed is now attached to the transfer device 48 of the transfer unit 36 and is rotated by the pivotable transfer device 48 to the height-adjustable rotary segment carousel 52.

Claims (14)

  1. Système de changement de segments de rotor (16) segmentés verticalement sur une presse rotative (34), comprenant un rotor (10), une unité de transfert (36) et un chariot de montage (38), dans lequel
    - le rotor (10) comprend un noyau de rotor (12) et au moins deux segments de rotor (16), dans lequel les segments de rotor (16) sont formés par segmentation verticale du rotor (10) et,
    - l'unité de transfert (36) comprend un dispositif de transfert (48) pour le transfert d'un segment de rotor (16),
    caractérisé en ce que
    le dispositif de transfert (48) est monté de manière coulissante sur des rails coulissants et de guidage (74) et peut tourner, l'unité de transfert (36) comprenant un dispositif de centrage et de fixation (44) au moyen duquel l'unité de transfert (36) peut être fixée, en position centrale, à un support (40) de la presse rotative (34) et l'unité de transfert (36) comporte un dispositif de raccordement (46) pour relier l'unité de transfert (36) au chariot de montage (38) et
    - le chariot de montage (38) comprend un dispositif rotatif (52) à segments réglables en hauteur pour recevoir au moins un segment de rotor (16), le chariot de montage (38) pouvant être relié à l'unité de transfert (36) au moyen du dispositif de raccordement (46).
  2. Système de changement de segments de rotor (16) segmentés verticalement sur une presse rotative (34) selon une ou plusieurs des revendications précédentes, caractérisé en ce que les segments de rotor (16) sont centrés et fixés au noyau de rotor (12) de l'extérieur et le noyau de rotor (12) comporte au moins un guidage (60) pour chaque segment de rotor (16), au moins un centrage (62), au moins une surface d'appui (64) et/ou quatre trous filetés (58) pour fixer un segment de rotor (16) segmenté verticalement, les trous filetés (58) étant reliés par quatre vis de fixation (54).
  3. Système de changement de segments de rotor (16) segmentés verticalement sur une presse rotative (34) selon une ou plusieurs des revendications précédentes, caractérisé en ce que le rotor (10) présente de deux à dix, de préférence quatre à huit et particulièrement recommandé six segments (16) de rotor.
  4. Système de changement de segments de rotor (16) segmentés verticalement sur une presse rotative (34) selon une ou plusieurs des revendications précédentes, caractérisé en ce que le segment de rotor (16) segmenté verticalement comprend au moins trois parties superposées,
    en particulier
    a. Un dispositif de guidage (20) pour le poinçon supérieur (50).
    b. Une bague intermédiaire (76) pour recevoir et fixer des segments de filière interchangeables (78) pour la fabrication de comprimés solides ou une bague intermédiaire (80) pour recevoir et fixer les segments de filière interchangeables avec bride usinée (82) pour fixer des porte-mandrins centraux (84) pour la fabrication de corps pressés annulaires
    c. Un dispositif de guidage (22) pour le poinçon inférieur (30).
  5. Système pour changer des segments de rotor (16) segmentés verticalement sur une presse rotative (34) selon une ou plusieurs des revendications précédentes,
    caractérisé en ce que
    un segment de rotor (16) pour la fixation au dispositif de transfert (48) comporte trois trous (66) pour recevoir des vis de fixation (68) et deux trous (70) pour recevoir des axes cylindriques (72), les alésages (66) étant disposés sous le guidage (22) des poinçons inférieurs (30) et en relation avec des vis de fixation (68) et des broches cylindriques (72) du dispositif de transfert (48).
  6. Système pour changer des segments de rotor (16) segmentés verticalement sur une presse rotative (34) selon une ou plusieurs des revendications précédentes,
    caractérisé en ce que
    les segments de rotor (16) peuvent être fixés au noyau de rotor (12) et au dispositif rotatif à segments (52) réglable en hauteur au moyen de quatre vis de fixation (54).
  7. Système de changement de segments de rotor (16) segmentés verticalement sur une presse rotative (34) selon une ou plusieurs des revendications précédentes, caractérisé en ce que le dispositif de raccordement (46) de l'unité de transfert (36) au chariot de montage (38) est une fixation rapide qui est formée de crochets (90) sur l'unité (36) et d'évidements (92) du chariot de montage (38) où les crochets (90) sont en relation avec les évidements (92).
  8. Procédé de retrait de segment
    comprenant les étapes consistant à
    a. l'ouverture des courbes de poinçonnage supérieure et inférieure dans une position de démontage,
    b. le positionnement d'une unité de transfert (36) sur une plaque support (40) d'une presse rotative (34) au moyen d'un dispositif de centrage et de fixation (44)
    c. une extension d'un dispositif de transfert (48) de l'unité de transfert (36)
    d. la fixation d'un segment de rotor segmenté verticalement (16) situé sur un noyau de rotor (12) à un dispositif de transfert (48) au moyen de vis de fixation (68) et d'axes cylindriques (72)
    e. le desserrage du segment de rotor (16) du noyau du rotor (12) en desserrant les vis de fixation (54)
    f. la rétractation du dispositif de transfert (48) en retirant le segment de rotor (16),
    g. le pivotement et/ou le déplacement du dispositif de transfert (48) avec le segment de rotor retiré (16),
    h. le transfert du segment de rotor enlevé (16) au moyen d'un dispositif de transfert (48) sur un dispositif rotatif à segment réglable en hauteur (52) d'un chariot de montage (38),
    i. le positionnement et fixation du segment de rotor démonté (16) sur le dispositif rotatif à segments (52) du chariot de montage (38)
    où toutes les courbes de poinçonnage supérieures et inférieures restent dans la presse rotative (34) pendant le changement de segment.
  9. Procédé de mise en place de segment
    comprenant les étapes consistant à
    a. l'ouverture des courbes de poinçonnage supérieure et inférieure dans une position de démontage,
    b. le positionnement d'une unité de transfert (36) sur une plaque support (40) d'une presse rotative (34) au moyen d'un dispositif de centrage et de fixation (44)
    c. la fixation d'un segment de rotor segmenté verticalement (16) situé sur un dispositif rotatif à segment réglable en hauteur (52) sur un chariot de montage (38) à un dispositif de transfert (48) de l'unité de transfert (36) au moyen de vis de fixation (68) et de broches cylindriques (72)
    d. le transfert du segment de rotor (16) au moyen du dispositif de transfert (48) du dispositif rotatif à segments (52) du chariot de montage (38),
    e. le pivotement et/ou le déplacement du dispositif de transfert (48) avec le segment de rotor (16),
    f. l'extension du dispositif de transfert (48) de l'unité de transfert (36) avec le segment de rotor (16),
    g. le positionnement et la fixation du segment de rotor (16) sur le noyau de rotor (12) à l'aide de vis de fixation (54)
    h. la fermeture des courbes de tampon supérieure et inférieure,
    où toutes les courbes de poinçonnage supérieures et inférieures restent dans la presse rotative (34) pendant le changement de segment.
  10. Procédure selon la revendication 8 ou 9
    caractérisée en ce que
    dans la zone de retrait des segments de rotor, des courbes de poinçon interne supérieure et inférieure pour le retrait et le montage des segments de rotor (16) s'ouvrent manuellement ou automatiquement.
  11. Procédure selon les revendications 8 à 10
    caractérisée en ce que
    les poinçons supérieur et inférieur (30, 74) se positionnent automatiquement dans les courbes supérieure et inférieure lors du retrait et du montage des segments rotor (16).
  12. Procédure selon les revendications 8 à 11
    caractérisée en ce que
    l'extension ou la rétraction du dispositif de transfert (48) s'effectue par un mouvement de coulissement linéaire sur les rails (74), le mouvement de coulissement étant effectué soit manuellement par une molette (42) ou automatiquement par un volant de commande manuel.
  13. Procédure selon les revendications 8 à 12,
    caractérisée en ce que
    les segments de rotor (16) sont fixés au noyau de rotor (12) et au dispositif tournant à segments rotatifs réglable en hauteur (52) au moyen du même moyen de fixation (68, 72).
  14. Procédure selon les revendications 8 à 13,
    caractérisée en ce que
    l'unité de transfert (36) est fixée sur la plaque support (40) de la presse rotative (34) entre une station de rouleaux de pression (86) et un dispositif de retrait (88).
EP14724747.2A 2013-05-16 2014-05-16 Système et procédés de changement de segments de rotor segmentés verticalement pour une presse rotative Active EP2996869B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14724747.2A EP2996869B1 (fr) 2013-05-16 2014-05-16 Système et procédés de changement de segments de rotor segmentés verticalement pour une presse rotative

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102013105048 2013-05-16
EP13176041 2013-07-11
EP14724747.2A EP2996869B1 (fr) 2013-05-16 2014-05-16 Système et procédés de changement de segments de rotor segmentés verticalement pour une presse rotative
PCT/EP2014/060111 WO2014184354A1 (fr) 2013-05-16 2014-05-16 Système et procédé de changement de segments de rotor, segmentés verticalement, d'une presse à table tournante

Publications (2)

Publication Number Publication Date
EP2996869A1 EP2996869A1 (fr) 2016-03-23
EP2996869B1 true EP2996869B1 (fr) 2019-07-17

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Application Number Title Priority Date Filing Date
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Country Status (7)

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US (1) US10183457B2 (fr)
EP (1) EP2996869B1 (fr)
JP (1) JP6294959B2 (fr)
KR (1) KR20160009042A (fr)
CN (1) CN105555514A (fr)
ES (1) ES2748061T3 (fr)
WO (1) WO2014184354A1 (fr)

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Publication number Priority date Publication date Assignee Title
WO2014184354A1 (fr) 2013-05-16 2014-11-20 Korsch Ag Système et procédé de changement de segments de rotor, segmentés verticalement, d'une presse à table tournante
EP3517289B1 (fr) * 2018-01-25 2020-12-30 Korsch AG Pression rail réglable pour presse à table tournante à mesure de la force de pression intégrée
WO2023278164A1 (fr) * 2021-07-02 2023-01-05 Industrial Pharmaceutical Resources, Inc. Presse rotative à comprimés à tourelle à rangées multiples
GB2621378A (en) * 2022-08-10 2024-02-14 I Holland Ltd A die table segment

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Publication number Publication date
CN105555514A (zh) 2016-05-04
KR20160009042A (ko) 2016-01-25
JP2016530998A (ja) 2016-10-06
US20160144587A1 (en) 2016-05-26
EP2996869A1 (fr) 2016-03-23
WO2014184354A1 (fr) 2014-11-20
ES2748061T3 (es) 2020-03-12
US10183457B2 (en) 2019-01-22
JP6294959B2 (ja) 2018-03-14

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