WO2015169852A1 - Druckrollenstation für rundlaufpressen mit zwei druckrollenaufnehmenden druckrollenachsen - Google Patents
Druckrollenstation für rundlaufpressen mit zwei druckrollenaufnehmenden druckrollenachsen Download PDFInfo
- Publication number
- WO2015169852A1 WO2015169852A1 PCT/EP2015/059946 EP2015059946W WO2015169852A1 WO 2015169852 A1 WO2015169852 A1 WO 2015169852A1 EP 2015059946 W EP2015059946 W EP 2015059946W WO 2015169852 A1 WO2015169852 A1 WO 2015169852A1
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- WO
- WIPO (PCT)
- Prior art keywords
- pressure roller
- roller station
- guide profile
- station
- receptacle
- Prior art date
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Classifications
-
- 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
Definitions
- the invention relates to a pressure roller station for rotary presses with two pressure roller receiving pressure roller axes. For greater press forces
- the frame is formed of an open guide profile and the pressure roller axes of mutually adjustable upper and lower
- Pressure roller seats arranged, which are guided by the guide profile, wherein the pressure roller axes are arranged parallel to two side parts of the guide profile.
- the open guide profile allows a good
- Accessibility of the components located in the pressure roller station and thus facilitates maintenance, service and replacement of components.
- Such rotary presses consist of a frame, a rotor with drive, a frame housing, load-bearing corner connectors, a top plate and a drive base in which the pressure rollers are received by an upper and a lower receiving device, wherein the upper receiving device on the head plate of the rotary press and the lower Receiving device are mounted on the drive base of the rotary press.
- the two pressure rollers strive to move away from each other by the pressing force occurring in the pressing process. They are prevented by the two receiving devices on the head piece and the base of the rotary press, and the two to four pieces corner connectors that connect the head piece and the socket together.
- the forces occurring in the pressing process are introduced directly via the punches and the receiving devices in the head piece and the base and energize these components by the pressing forces
- the pressure roller axle for the upper pressure roller is connected by means of an adjustable spacer with the upper cross member.
- the spacer is used to set the immersion depth of the upper punches in the dies of the die plate.
- the pressure roller axle for the lower pressure roller is connected via a shaft with a hydraulic adjusting unit, which acts on the lower pressure roller for the purpose of adjusting the tablet thickness and thus the pressing force.
- Pressure roller station is associated with a high, costly material cost, since the frame of the rotary press and the corner connectors must be designed so massive that they can safely absorb the press forces occurring. Further, the force curve through the frame vibrations
- a disadvantage of the pressure roller station described in DE 197 050 92 C1 is that the cylindrical guide column of the pressure roller station has a cylindrical, closed outer wall. Although this is to be welcomed in terms of pharmaceutical hygiene requirements, it does provide a technician with the task of maintaining the components inside the guide or replacing them
- GB 842 189 A discloses a rotary press in which there are two pressure rollers which allow the movement of rams. The attachment of the two pressure rollers takes place in the context of GB 842 189 A separately from each other in a lower base area, or in an upper roof area of the tablet press.
- EP 1 354 694 discloses a method and apparatus for monitoring a brake on a spindle, the spindle being driven by a motor, such as an electric motor.
- a rotary press is disclosed with at least one pressure roller unit, which is fastened to a bearing device by means of a holding device in a detachable manner.
- the invention is therefore based on the object, a Druckrollenstation
- the object is achieved with a pressure roller for
- Rotary presses with two pressure roller-receiving pressure roller axes, wherein a guide profile of the pressure roller station is configured open and the
- the open guide profile can be made extremely stable, with a
- the upper and lower pressure roller receptacles not only independent of each other, but also be misaligned with each other.
- the parallel adjustment of the two pressure roller receptacles with a fixed distance from each other thereby allows a surprisingly simple press zone adjustment, that is, the area within the die bore, in which the pressing of the powdered molding material is carried out, can advantageously be varied by passing through and equally stressing all areas of the inside of the die sleeve and worn out. It was completely surprising that the lifetime of a female mold can be extended disproportionately and to an unexpectable extent in this way.
- Matrizenbohrung is, from above and below by the pressing tools of the same pressing pressure with a constant pressure holding time is exercised.
- the position of the upper pressure roller to increase the position of the upper pressure roller by turning the eccentric shaft to the right or left down moves the top dead center of the upper pressure roller relative to the old position of the lower pressure roller to the right or left of the central axis, causing the Pressing force on the die material in the die bore is shortened and thus reduced because the plateaus of the upper and lower die heads do not pass through the pair of rolls at the same time, which adversely affects the hardness of the tablet to be produced.
- the upper and lower pressure roller bearings and guides are preferably guided axially parallel.
- open guide profile designates the internal structure of the pressure roller station Open is a profile if side surfaces which are not completely closed on at least one side of the profile are open
- a cuboid or a cylinder are, for example, closed profiles in the sense of the invention.
- the open guide profile of the present invention is in particular not cylindrical and has no round base.
- the pressure roller axes are arranged in parallel, which means that the pressure roller axes in
- substantially or substantially parallel or substantially right angle means in the context of the invention preferred that due to the manufacturing process, such as welding, milling and / or drilling operations, small deviations from parallelism or
- the average person skilled in the field of mechanical engineering would still regard the components thus described as being parallel or rectangular, and a deviation from the parallelism can also occur through the use or operation of the machine average expert in mechanical engineering with experience in the design of tablet presses knows the magnitude of such deviations may be due to the usual manufacturing tolerances, so that the expert still perceives the arrangement as parallel.
- the two side parts are arranged parallel to each other and can be connected to a connecting part, wherein the side parts and the connecting part include right angles.
- Deviations can be.
- the person skilled in the art will understand the term "right angle” in the overall context of this invention preferably as “right angle” or “as substantially right angle.”
- the explanations made with regard to the formulation "essentially” apply to the parallelism analogously.
- the guide profile is an open in the context of the invention guide profile. It is preferred in the sense of the invention that the remaining components of the pressure roller station are arranged at the lateral and connecting parts of the open guide profile. Due to the open structure of the guide profile, the pressure roller station has a surprisingly good accessibility of all maintenance and replacement components of the pressure roller station, as well as a high stability and unexpectedly high flexural rigidity. It is preferred that in case of, for example, one of the components of
- Pressure roller station must be exchanged or maintained, this replacement or maintenance process through the open guide profile is possible without removing the pressure roller station as a whole from the rotary press. For this purpose, special lifting tools were needed. It was completely surprising that a pressure roller station according to the invention with an open guide profile
- the components of the open guide profile of the pressure roller station can be produced by milling, which leads to a particularly high precision of the components.
- the two side parts of the open guide profile preferably form the right and left side surfaces of the housing of the pressure roller station.
- the connecting part which connects the two side parts together, is preferably arranged centrally between the side parts, so that the three parts in plan view represent the shape of a capital letter "H.” It is preferred that one of the two
- Openings of the "H” faces the rotor, while the second opening of the "H” s is located on the side facing away from the rotor of the pressure roller station, which is preferably referred to as the back of the Druckrollenstation in the context of the invention. Due to the preferred arrangement of the open guide profile within the pressure roller station thus described a surprisingly space-saving arrangement of
- Pressure roller station allows within the rotary press, whereby the obtained concentricity presses can be made very compact. As a result, volume is advantageously saved, for example, during transport of the rotary presses or, for example, when setting up a plurality of
- the shape of the guide profile may preferably be referred to as box-shaped, wherein the two side parts and the connecting part include substantially right angles. But it may also be preferred that the side parts and the connecting part include angles which are smaller or larger than 90 °. Such angles are referred to in the context of the invention as "substantially rectangular”.
- the profiling of the guide profile is preferably carried out in a manner that creates an open structure with advantages for assembly, maintenance and service. This represents a departure from the closed design described in the prior art.
- the known from the prior art Druckrollenstation was advantageously turned "from the inside out”.
- the drives and other components of the pressure roller station such as For example, guides or path measuring systems, surprisingly easy accessible from the outside for troubleshooting and repairs without having to dismantle the entire pressure roller station.
- the drives and other components of the pressure roller station such as For example, guides or path measuring systems, surprisingly easy accessible from the outside for troubleshooting and repairs without having to dismantle the entire pressure roller station.
- Pressure roller mounts serve to accommodate the pressure rollers.
- the pressing forces occurring in the pressing process are preferably absorbed by the guide profile and derived down to the vibration-decoupled support plate of the rotary tablet press. This avoids that the entire frame of the tablet press is exposed to the pressing forces during the pressing process. This allows a less massive design of the base while saving material.
- the rack components such as
- Headstock, corner connectors and pedestals not excited to vibrations, which, if the frequencies are within the audible range, can lead to noise.
- the receptacle preferably represents the link between the upper and the lower pressure roller receptacle. It is preferably provided that the receptacle comprises the overload protection, the lower adjustment drive and the bearing of a spindle.
- the upper and lower pressure roller receiving therefore preferably do not act together directly, but are connected to each other via the spindle.
- this spindle connecting the two pressure roller receptacles it is preferably a trapezoidal threaded spindle, with which movements and high tensile forces can advantageously be transmitted.
- the spindle is preferably mounted on the receptacle on which the overload protection is attached.
- the lower pressure roller receiving therefore preferably do not act together directly, but are connected to each other via the spindle.
- the spindle connecting the two pressure roller receptacles it is preferably a trapezoidal threaded spindle, with which movements and high tensile forces can advantageously be transmitted.
- the spindle is preferably mounted on the receptacle
- Pressure roller receiving frictionally connected by the overload protection with the recording It is preferred for the purposes of the invention that when adjusting the spindle, the lower pressure roller receptacle and the receptacle are moved together, so that they preferably form a coherent part and can be moved together.
- the upper pressure roller receptacle, the receptacle and the lower pressure roller receptacle are arranged one behind the other on a common sliding guide plane. They slide, such as carriages on the common Gleit Equipmentsebene.
- the pressure roller station according to the invention preferably comprises flat guides as plain bearings, which are structurally designed in particular playable. Due to the minimized
- the immersion depth of the upper plunger can be adjusted in the die.
- the web thickness of the tablet to be produced is regulated.
- upper and lower punches of a rotary press cooperate in such a way that one tablet is pressed out of the powder material to be pressed, which is located between the punches.
- the underside of the upper punch and the top of the lower punch are shaped so that between the punches there is a cavity whose shape substantially corresponds to the shape of the tablet.
- the upper and lower punches are always guided by the cams and rails so that upper and lower punches do not touch during the pressing process.
- tablets In the middle region, tablets often have a greater thickness than at the wheels. This thickness may decrease to the edges, not taking the value of zero, which would be equivalent to undesirable contact of the upper and lower punches. Tablets preferably have a thickness at their edges which is the web height or web thickness referred to as. This web height or web thickness can in a preferred
- Embodiment of the invention by means of the lower adjustment drive can be set surprisingly accurate, with application tests have shown that
- An overload protection according to the invention is preferably a device for protecting the tools in the rotary tablet press, for example, when the force acting between the two pressure rollers pressing force exceeds a predetermined value.
- This predetermined value is preferably referred to as biasing force within the meaning of the invention.
- Overload protection of the pressure roller station a mechanical overload protection and includes adjustable, tensioned disc springs.
- a preferred mechanical overload protection includes adjustable, tensioned disc springs.
- diaphragm spring in the sense of the invention preferably designates a conical annular shell, which can be loaded in particular in the axial direction and can be stressed, for example, both in a resting and oscillating manner In a small space available, large pressing forces, such as occur in a rotary press, can be accommodated and are distinguished by a long service life.
- a suitable layering and series connection of individual disk springs and packages of disk springs enables a surprisingly good spring action to be achieved.
- Overload protection also be a hydraulically operated overload protection. This is particularly advantageous when the overload protection is to be set quickly when changing tools to the maximum allowable load of the tools actually used.
- the upper and lower pressure roller receiving on sliding guides which are adjustable and replaceable to minimize the bearing clearance.
- game is to be understood as a freedom of movement, in which a mechanical component can move freely after assembly
- sliding strip preferably denotes a flat, thin and elongated component, which is advantageously provided with a sliding coating.
- the average person skilled in the art will know which material consists of a surface or how a surface is changed or treated in order to allow good sliding.
- a further advantage of the pressure roller station according to the invention is that the guide rails are exchangeable in a particularly simple manner by the open construction of the guide profile. In the case of a wear-related Replacements of a guide bar preferably only the affected guide bar must be replaced without dismantling the pressure roller station as a whole. Thus, the replacement of wear-prone components, such as the guide rails, surprisingly easy, fast and inexpensive.
- the open guide profile has a front side and a rear side, wherein the front side represents the side of the guide profile facing the rotor and the front side and the rear side of the guide profile are provided with lining plates.
- the pressure roller station according to the invention preferably has an open guide profile, which represents the capital letter "H" in plan view, wherein the side faces of the housing of the pressure roller station are preferably formed by the side parts of the guide profile
- the front side of the guide profile preferably faces the rotor of the rotary press and includes
- the rear side of the guide profile is preferably located substantially parallel to the front side on the side facing away from the rotor of the rotary press.
- the front and the back of the guide profile are preferably provided with cladding panels, which may be provided for example with their own sealing profiles.
- Cladding sheets according to the invention are preferably substantially rectangular, thin, flat and flat metal plates of preferably stainless steel, which are provided for example on its periphery with holes, by means of which the cladding sheets in particular with the housing of the
- Screws are advantageously as metallic connecting means, for example in an ultrasonic bath, easy to clean and thus meet the high demands on components in pharmaceutical plants. But they are also alternative for other purposes Connecting means, such as, but not limited to, double-sided adhesive tape, hook-and-loop fasteners and / or magnetic strips are conceivable.
- Connecting means such as, but not limited to, double-sided adhesive tape, hook-and-loop fasteners and / or magnetic strips are conceivable.
- the use of screws as connecting means makes it possible in particular, the
- Pressure roller station or to facilitate the performance of service measures or the replacement of worn or defective components.
- Pressure roller station are performed faster and the presence of specially trained personnel is required to a lesser extent. It represents a significant advantage of the invention that downtime of the rotary press and the necessary personnel expenses could be reduced to a surprising extent.
- the guide profile of the pressure roller station has on its underside an air cushion.
- Pressure roller station on a support plate of the rotary press is made possible.
- conversion work of the pressure roller stations can now also be performed by those operators who were previously excluded from this work, due to the physical burden of the weight of the pressure roller stations, making the use of personnel and personnel planning is much easier.
- the Druckrollenstation is in the assembled state preferably on one Support plate attached, which represents the upper end of the drive base of the rotary press.
- the pressure roller station is preferably via a mounting flange with a central clamping unit and / or with
- Connecting means preferably screws, along the circumference of the
- Support plate connected. It is preferred in the context of the invention to designate the lower end of the base towards the bottom as the base plate, while the carrier plate preferably forms the upper base end.
- the pressure roller station comprises in a preferred
- Embodiment on its underside an air cushion to reduce the frictional force between the guide column and a support plate.
- air cushions are preferably produced by means of compressed air between the underside of the pressure roller station and the carrier plate.
- the airbag is turned on only when the
- Pressure roller station for service or conversion purposes for a different configuration must be moved manually.
- the air cushion in particular does not raise the pressure roller station. Instead, the upward force of the compressed air is preferably sized to minimize the frictional force on the base plate created by the weight of the pressure roller station.
- the air cushion is formed by the fact that preferably a shallow cavity is filled with pneumatic pressure on the underside of the pressure roller station.
- This cavity preferably has a height of 1 to 2 mm and preferably corresponds to the dimensions of the base of the guide profile of the pressure roller station.
- the pressure for producing the airbag is preferably in a range of 2 to 4 bar and is preferably provided by a pressure reducing valve of the pneumatic installation of the rotary press. So that the air on the sides of the cavity can not escape during the construction of the air cushion, it is preferred that circumferentially around the cavity there is a seal which advantageously seals the cavity against the base plate.
- the connection of the air cushion can be permanent or temporarily by coupling a pressure hose done.
- the compressed air supply preferably takes place via the carrier plate of the drive base. It is preferred for the purposes of the invention, when the pressure supply is switched off when the Druckrollenstation is stretched or screwed in the production position. Preferably, either the automatic tension must be released by the central tensioning device or the screw fastening of the pressure roller station prior to switching on the air cushion, which then leads to safe use of the air cushion.
- the pressure roller station comprises sensors for measuring the pressing force.
- the printing roller axes are preferably equipped with strain gauges (DMS) to determine the pressing force.
- Strain gauges are within the meaning of the invention preferred measuring devices for detecting stretching and / or upsetting
- the average person skilled in the art is known to be mounted on components that deform minimally under load. This deformation or elongation advantageously leads to a change in the resistance of the strain gauge.
- the lower pressure roller axle is provided with such a strain gauge.
- the upper pressure roller axle is provided with such a strain gauge.
- Pressure roller axis or both pressure roller axes are provided with strain gauges.
- the strain gauges preferably cover a force range of 20 to 100 kN in stages.
- the pressure roller station is displaceable on a carrier plate, pivotable and / or mounted about a vertical point of the open guide profile.
- the pivot point is preferably not forcibly the intersection of the diagonals of the open guide profile.
- the fulcrum may be a fixed point located laterally on the mounting surface of the guide profile.
- the pivoting of the at least one pressure roller station can preferably be performed both manually by arm power, as well as automated. In the manual movement, it is preferable that the printing roll station to be rotated is advantageously directly touched, or a handle is used.
- the invention relates to the use of the
- Overload protection can be adjusted by means of a biasing force so that the lower pressure roller receptacle of the recording dissolves when acting between the Druckrollenapplicationn pressing force exceeds the biasing force.
- the biasing force is generated by the layered disc springs. These are preferably compact and powerful and suitable, for example, to ensure prestressing forces up to 150 kN in the available space.
- Overload protection preferably automatically returns to its initial position when the pressing force drops below the set preload force. It is preferred that by the spring force of the overload protection forming disc springs
- Exceeding the preload force occurs, for example, in so-called "overpressures" when pressed in the die of the rotary press, in which the upper and lower punches cooperate and form by this interaction the compact pressed residues of compacts are available, which can not be further compressed.
- the overload protection can be triggered, for example, by overfilled matrices.
- the pressing process and the position of the pressure rollers relative to one another are preferably based on the filling level and the characteristics of the molding compound, in particular its bulk density and the compression ratio. Voted. In Göpressungsfall the pressing force can rise sharply and
- the lower pressure roll receptacle shifts downwardly and disengages from the receptacle when the pressing force reaches or exceeds the spring-biased force or the biasing force of the overload fuse.
- This advantageously increases the distance between the upper and the lower pressure roller, and the pressing force can not exceed the set, spring-biased force of the overload protection. Decreases the pressing force again, it is preferred in the sense of the invention that the lower pressure roller receptacle again applies force fit to the recording.
- the lower pressure roller receiving and receiving by the frictional connection which is realized by the spring force of the plate springs of the overload protection, preferably move as one
- Biasing force up to 100 kN, preferably up to 125 kN and more preferably up to 150 kN. It was completely surprising that a compact built
- Rotary press can be provided with a new, deviating from the prior art arrangement for an overload protection, which has enough space to provide biasing forces in the order of magnitude.
- Overload protection A safety switch that either turns off the rotary press when the press force exceeds the preload force or after an adjustable number of such events. It is preferred that depending on the programming and the requirements of the tablet press the
- Pressing process is stopped either immediately or after an adjustable number of overpress events. Such events occur in cases of overpressures which occur when pressed residues of the tablet powder to be compressed, for example, remain in the die of the rotary tablet press, which can no longer be compacted. Next can overpressions occur, for example, if the die is filled with too low set web height with too large amount of tablet powder to be pressed.
- the switch may preferably be an approximate initiator.
- An approximation initiator is a sensor that reacts to approach, ie without direct contact without contact.
- the switch is a microswitch or an optical sensor. The average person skilled in the art knows which other types of switches can be used for the overload protection.
- the pressing operation and the position of the pressure rollers relative to each other preferably on the filling level of the tablet powder and the properties of the molding compound, such as bulk density and compression ratio, are tuned, overpressions may occur and cause damage to the pressing tools and the Druckrollenstation by the strong increasing pressing force .
- the tablet press be shut down in a single overpressure event.
- the pressure roller station has at least one sensor for measuring distance.
- the pressure roller station has at least one sensor for measuring distance.
- Pressure roller station have one or two sensors.
- the sensors for displacement measurement or path measuring systems are preferred.
- Longitudinal distance measuring systems which in particular continuously record measured values.
- position measuring systems can be used which have high accuracy, good repeatability and linearity, and that such position measuring systems can be selected from the group non-contact, with contact, magnetic, optical or inductive measuring. It is preferred that by completing the open guide profile of the pressure roller station by means of trim panels, in particular the sensors for measuring distance and Versteilantriebe with their transmission elements, such as the spindles, easily from the outside by removing the
- Cladding panels are accessible and can be easily replaced in service or installation case, without the pressure roller station must be replaced as a whole.
- the force flow between the upper pressure roller receptacle and the upper adjustment drive is advantageously interrupted so that a surprisingly large braking effect is achieved.
- the lower adjusting drive for the web thickness adjustment has a spindle positively and / or non-positively connected to the lower adjusting drive and a brake, which blocks the spindle in the actuation case with respect to the receptacle.
- the power flow between the lower pressure roller receptacle and the lower adjusting drive is advantageously interrupted, whereby here too the brake exerts a surprisingly large blocking effect.
- the brakes are effective for setting the drives in the de-energized state respectively at the last point of the power flow to the respective engine.
- the brakes can be arranged in the pressure roller station according to the invention that they act directly on the spindle as a power transmission member, which represents a departure from the prior art and has not been considered by the art.
- the brakes are preferably arranged directly on the spindles for setting the web height and the immersion depth. This will be long transmission paths of
- Pressing process Engine and transmission work against the press force.
- motors and gears are advantageously switched again torque and force and thus are not subject to the pressing force and the press force fluctuations.
- the brakes can preferably be made both positive and non-positive. It is preferred that the releasable brakes are braked in the unactuated, voltage or pressure-free state, while they are open in the actuated state for the adjustment process of the respective Versteilantriebs.
- the brake is actuated electrically, pneumatically and / or hydraulically.
- the operation of the brake is preferably carried out pneumatically.
- an electrical or hydraulic actuation takes place. It was surprising that any automatically operating brake can be used in a pressure roller station so that the brake is directly on the power transmission ungsorgan effective and not need to be mounted behind the engine and the transmission.
- Figure 2 a longitudinal section through a preferred embodiment of
- Figure 3 a side view of a preferred embodiment of
- Figure 4 a plan view of a preferred embodiment of
- FIG. 1 shows a section through the pressure roller station (100) according to the invention. Shown are in particular the front (1 15), back (116) and bottom (1 18) of the pressure roller station (100).
- the front side (115) is the
- the rear side (16) of the pressure roller station (100) is arranged essentially parallel to it and faces away from the rotor (91) of the tablet press (90).
- parallel also includes “substantially parallel” surfaces, where “substantially parallel” surfaces are a
- Deviation to parallelism of preferably not more than 6 °, most preferably not more than 3 °. Further shown are the trim panels (96, 97), the front (1 15) and the back (1 16) of the open
- the section in Fig. 1 passes centrally through the guide column (1) of the pressure roller station (100), so that the parallel side parts (1 12, 1 13) of the open guide profile (1) in Fig. 1 are not visible. However, you can see the connecting part (1 14) of the guide profile (1), which connects the two side parts (1 12, 113) with each other.
- the connecting part (114) gives the guide profile (1) its special
- the upper Druckrollenability (2) has an upper sliding guide (103), the lower
- the sliding guides (103, 104) of milled, high-precision components which allow the setting of a later correctable game during assembly of the sliding guides (103, 104).
- the two pressure rollers (40, 50) can be adjusted against each other, which in particular by the spindle (18) is effected. As a result, the web thickness can be adjusted.
- the upper pressure roller receptacle (2) is mounted with an upper adjusting drive (4) acting on the guide profile.
- the upper adjusting drive (4) is used to set the upper pressure roller (40) and thus to adjust the depth of immersion of the upper pressure roller (40) acted upon upper punch (56), and for common, ie parallel adjustment of the upper pressure roller (40) and lower Pressure roller (50) at a fixed distance.
- This allows the press zone of the rotary tablet press (90) to be adjusted.
- This is advantageous because different areas of the matrices in the die plate can be selected and approached. As a result, different areas of the die are stressed during the pressing process, whereby the life of the dies by exploiting the entire
- the lower pressure roller receptacle (3) is provided with a lower adjustment drive (5) by means of a receptacle (108) and an overload protection (109), wherein the lower adjustment drive (5) is mounted on the upper pressure roller receptacle (2) and at this upper pressure roller receptacle (FIG. 2) attacks.
- the upper and lower pressure roller receptacles (2, 3) via the spindle (18) do not interact directly.
- the spindle (18) is mounted on the receptacle (108) on which the overload protection (109) is attached.
- the lower pressure roller receptacle (3) is non-positively connected indirectly with the receptacle (108).
- the lower pressure roller receptacle (3) is non-positively connected indirectly with the receptacle (108).
- Adjusting drive (5) for the lower pressure roller (50) is used together with the spindle (18) to adjust the web thickness relative to the upper pressure roller (40).
- the gear motor (6) cooperates with another spindle (7), which serves to adjust the depth of immersion of the upper punch (56).
- the brake for the immersion depth adjustment (105) and the brake for the web thickness adjustment (107) are attached.
- the brakes (105, 107) act directly on the power transmission organs, so the spindles (7, 18).
- the spindles (7, 18) are prevented by the brakes (105, 107).
- the spindle (7) is blocked for adjusting the depth of immersion relative to the housing (106) of the upper Versteilantriebs (4), whereby the power flow between the upper pressure roller receptacle (2) and the Versteilantrieb (4) is interrupted.
- the spindle (18) for adjusting the web thickness is blocked relative to the receptacle (108), which is an interruption of the power flow between lower pressure roller receptacle (3) and lower
- the upper pressure roller receptacle (2) can be moved up and down vertically in the guide column (1) in cooperation with the spindle (7) and the upper sliding guide (103) by actuation of the geared motor (6), whereby the immersion depth of the upper punches (56) is set.
- the lower pressure roller receptacle (3) can be moved up and down vertically in the guide column (1) in cooperation with the spindle (18) and the lower slide guide (104) by actuating the gear motor (13), whereby the web thickness is adjusted.
- FIG. 1 shows a mechanical overload safety device (109), by means of which tensionable disc springs (117) generate a prestressing force. This biasing force causes the frictional connection between the lower
- the overload protection (109) protects the pressing tools, such as the upper punches (56) and
- the overload protection (109) is provided with a switch (110) through which the rotary press (90) can be switched off. This can happen either when pressing force between the pressure rollers (40, 50) exceeds the biasing force of the overload protection (109), or when there is an adjustable number of overpressure events.
- FIG. 1 shows an air cushion (1 11), which is present attached to the underside of the pressure roller station (100).
- This air cushion (11 1) allows a movement of the pressure roller station (100) on a support plate (29) with a reduced
- the air cushion (1 1 1) is placed in a cavity below the
- the compressed air supply can be permanently or temporarily connected.
- the compressed air supply of the air cushion (1 1 1) preferably takes place via a supply connection of the pressure roller station (100). This is advantageous because the pressure conditions can be adapted to the requirements of the generation of an air cushion (11) tuned to the pressure roller station (100). However, it may also be preferred that the compressed air supply via the support plate (29) of the rotary tablet press (90).
- FIG. 2 shows a longitudinal section through a preferred embodiment of the pressure roller station, wherein the position of the sensors for distance measurement (101, 102) and for pressing force measurement (119) are shown.
- the positions of the sensors for position measurement (101, FIG. 102), or the displacement measuring systems represented. These are preferably around
- the sensor for pressing force measurement (1 19) is in the embodiment of the invention shown in Fig. 2 at the bottom
- FIG. 3 shows a side view of a preferred embodiment of
- Pressure roller station (100) It can be seen that the pressure roller station (100) in this preferred embodiment by means of a mounting flange (92) and
- FIG. 3 further shows one of the two side surfaces (1 12) of the open
- FIG. 3 shows the upper (56) and lower (57) pressing tools, ie the upper punches (56) and the lower punches (57) of the rotary tablet press (90), by means of the upper (40) and lower (50) pressure rollers be pressed together for the purpose of tablet molding.
- Fig. 4 shows a plan view of a preferred embodiment of
- Pressure roller station (100) in which the H-shape of the open guide profile (1) is clearly visible, which is formed by the two substantially parallel side parts (1 12, 1 13) and the substantially perpendicular thereto connecting part (1 14) ,
- the side parts (112, 113) form the side surfaces of the
- FIG. 4 illustrates the open structure of the guide profile (1), which at the front (1 15) and the back (116) of the pressure roller station (100) each with a cladding panel (96, 97) is completed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15722984.0A EP3140110B1 (de) | 2014-05-07 | 2015-05-06 | Druckrollenstation für rundlaufpressen mit zwei druckrollenaufnehmenden druckrollenachsen |
KR1020167033845A KR101831096B1 (ko) | 2014-05-07 | 2015-05-06 | 압력 롤러가 통합된 2개의 압력 롤러 샤프트를 포함하는 회전식 프레스의 압력 롤러 스테이션 |
JP2016567033A JP6294975B2 (ja) | 2014-05-07 | 2015-05-06 | 加圧ローラーを組み込む2つの加圧ローラーシャフトを備える、ロータリープレスの加圧ローラーステーション |
ES15722984T ES2787903T3 (es) | 2014-05-07 | 2015-05-06 | Estación de rodillos prensores para prensas rotativas con dos ejes de rodillo prensor que alojan rodillos prensores |
CN201580036447.7A CN106660292B (zh) | 2014-05-07 | 2015-05-06 | 包括具有压轮的两个压轮轴的用于旋转压力机的压轮台 |
US15/345,261 US10500807B2 (en) | 2014-05-07 | 2016-11-07 | Pressure roller stations for rotary presses having two pressure roller axles for receiving pressure rollers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14167415 | 2014-05-07 | ||
EP14167415.0 | 2014-05-07 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/345,261 Continuation US10500807B2 (en) | 2014-05-07 | 2016-11-07 | Pressure roller stations for rotary presses having two pressure roller axles for receiving pressure rollers |
Publications (2)
Publication Number | Publication Date |
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WO2015169852A1 true WO2015169852A1 (de) | 2015-11-12 |
WO2015169852A4 WO2015169852A4 (de) | 2015-12-30 |
Family
ID=50679909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/059946 WO2015169852A1 (de) | 2014-05-07 | 2015-05-06 | Druckrollenstation für rundlaufpressen mit zwei druckrollenaufnehmenden druckrollenachsen |
Country Status (7)
Country | Link |
---|---|
US (1) | US10500807B2 (de) |
EP (1) | EP3140110B1 (de) |
JP (1) | JP6294975B2 (de) |
KR (1) | KR101831096B1 (de) |
CN (1) | CN106660292B (de) |
ES (1) | ES2787903T3 (de) |
WO (1) | WO2015169852A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021083929A1 (de) | 2019-10-30 | 2021-05-06 | Korsch Ag | DRUCKROLLENSTATION FÜR RUNDLAUFPRESSEN MIT AUßENLIEGENDEN ACHSENAUFNAHMEN FÜR DRUCKROLLENEINHEITEN |
CN113976845A (zh) * | 2021-11-22 | 2022-01-28 | 马钢集团设计研究院有限责任公司 | 一种连铸铸流气动自动调节导向装置 |
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GB842189A (en) | 1957-12-14 | 1960-07-20 | John Holroyd & Company Ltd | Improvements in or relating to rotary compacting machines |
US3891375A (en) | 1974-01-21 | 1975-06-24 | Vector Corp | Tablet press |
DE19705092C1 (de) | 1997-01-31 | 1998-03-26 | Korsch Pressen Gmbh | Druckrolleneinheit für Rundlaufpressen |
WO1999033624A1 (en) | 1997-12-25 | 1999-07-08 | Metropolitan Computing Corporation | Press simulation apparatus and methods |
JP2000301395A (ja) * | 1999-02-09 | 2000-10-31 | Japan Nuclear Fuel Co Ltd<Jnf> | 粉末成形機 |
US20030072799A1 (en) | 2001-09-28 | 2003-04-17 | Sowden Harry S. | Systems, methods and apparatuses for manufacturing dosage forms |
EP1354694A2 (de) | 2002-04-18 | 2003-10-22 | Baltec Maschinenbau Ag | Verfahren und Vorrichtung zum Überwachen einer Bremse an einer Spindel |
JP2009285673A (ja) * | 2008-05-28 | 2009-12-10 | Mori Machinery Corp | ロータリプレス |
WO2010127861A2 (de) | 2009-05-07 | 2010-11-11 | Korsch Ag | Rundlaufpresse insbesondere zur herstellung von tabletten |
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DE102004040163C5 (de) * | 2004-08-19 | 2009-06-18 | Fette Gmbh | Rundläufertablettenpresse |
-
2015
- 2015-05-06 EP EP15722984.0A patent/EP3140110B1/de active Active
- 2015-05-06 WO PCT/EP2015/059946 patent/WO2015169852A1/de active Application Filing
- 2015-05-06 KR KR1020167033845A patent/KR101831096B1/ko active IP Right Grant
- 2015-05-06 JP JP2016567033A patent/JP6294975B2/ja active Active
- 2015-05-06 CN CN201580036447.7A patent/CN106660292B/zh active Active
- 2015-05-06 ES ES15722984T patent/ES2787903T3/es active Active
-
2016
- 2016-11-07 US US15/345,261 patent/US10500807B2/en active Active
Patent Citations (10)
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US2846723A (en) * | 1957-02-27 | 1958-08-12 | Stokes F J Corp | Rotary tablet press |
GB842189A (en) | 1957-12-14 | 1960-07-20 | John Holroyd & Company Ltd | Improvements in or relating to rotary compacting machines |
US3891375A (en) | 1974-01-21 | 1975-06-24 | Vector Corp | Tablet press |
DE19705092C1 (de) | 1997-01-31 | 1998-03-26 | Korsch Pressen Gmbh | Druckrolleneinheit für Rundlaufpressen |
WO1999033624A1 (en) | 1997-12-25 | 1999-07-08 | Metropolitan Computing Corporation | Press simulation apparatus and methods |
JP2000301395A (ja) * | 1999-02-09 | 2000-10-31 | Japan Nuclear Fuel Co Ltd<Jnf> | 粉末成形機 |
US20030072799A1 (en) | 2001-09-28 | 2003-04-17 | Sowden Harry S. | Systems, methods and apparatuses for manufacturing dosage forms |
EP1354694A2 (de) | 2002-04-18 | 2003-10-22 | Baltec Maschinenbau Ag | Verfahren und Vorrichtung zum Überwachen einer Bremse an einer Spindel |
JP2009285673A (ja) * | 2008-05-28 | 2009-12-10 | Mori Machinery Corp | ロータリプレス |
WO2010127861A2 (de) | 2009-05-07 | 2010-11-11 | Korsch Ag | Rundlaufpresse insbesondere zur herstellung von tabletten |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2021083929A1 (de) | 2019-10-30 | 2021-05-06 | Korsch Ag | DRUCKROLLENSTATION FÜR RUNDLAUFPRESSEN MIT AUßENLIEGENDEN ACHSENAUFNAHMEN FÜR DRUCKROLLENEINHEITEN |
CN113976845A (zh) * | 2021-11-22 | 2022-01-28 | 马钢集团设计研究院有限责任公司 | 一种连铸铸流气动自动调节导向装置 |
CN113976845B (zh) * | 2021-11-22 | 2023-05-26 | 马钢集团设计研究院有限责任公司 | 一种连铸铸流气动自动调节导向装置 |
Also Published As
Publication number | Publication date |
---|---|
US20170050401A1 (en) | 2017-02-23 |
WO2015169852A4 (de) | 2015-12-30 |
EP3140110B1 (de) | 2020-03-18 |
JP6294975B2 (ja) | 2018-03-14 |
CN106660292B (zh) | 2018-06-05 |
KR20170003620A (ko) | 2017-01-09 |
CN106660292A (zh) | 2017-05-10 |
JP2017517398A (ja) | 2017-06-29 |
EP3140110A1 (de) | 2017-03-15 |
ES2787903T3 (es) | 2020-10-19 |
US10500807B2 (en) | 2019-12-10 |
KR101831096B1 (ko) | 2018-02-21 |
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