EP4151327A1 - Presse d'extrusion avec une unité de détection - Google Patents

Presse d'extrusion avec une unité de détection Download PDF

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Publication number
EP4151327A1
EP4151327A1 EP22204757.3A EP22204757A EP4151327A1 EP 4151327 A1 EP4151327 A1 EP 4151327A1 EP 22204757 A EP22204757 A EP 22204757A EP 4151327 A1 EP4151327 A1 EP 4151327A1
Authority
EP
European Patent Office
Prior art keywords
friction wheel
tool
unit
holding device
base frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP22204757.3A
Other languages
German (de)
English (en)
Other versions
EP4151327B1 (fr
Inventor
Mikola HUBA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ASMAG Holding GmbH
Original Assignee
ASMAG Holding GmbH
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Filing date
Publication date
Application filed by ASMAG Holding GmbH filed Critical ASMAG Holding GmbH
Publication of EP4151327A1 publication Critical patent/EP4151327A1/fr
Application granted granted Critical
Publication of EP4151327B1 publication Critical patent/EP4151327B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/005—Continuous extrusion starting from solid state material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/212—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/212—Details
    • B21C23/214—Devices for changing die or container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/212—Details
    • B21C23/215—Devices for positioning or centering press components, e.g. die or container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
    • B21C29/006—Gas treatment of work, e.g. to prevent oxidation or to create surface effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C31/00—Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses

Definitions

  • the invention relates to an extrusion press for the continuous production of profiles from a formable extruded material.
  • a generically trained extrusion machine is from WO 2015/070274 A1 known.
  • the extrusion press is used for the continuous production of profiles from a formable extruded material and comprises a base frame, a friction wheel that can be rotated about a drive axis, a tool holding device, a locking device and a tool unit supported on the tool holding device.
  • the tool holding device is mounted on a pivot axis held on the base frame and can be pivoted between a working position and a release position.
  • the locking device holds the tool holding device in its working position.
  • the tool unit is also accommodated in a receiving chamber arranged in the tool holding device and comprises a wiping element arranged in a wiping area.
  • the object of the present invention was to overcome the disadvantages of the prior art and to provide an extrusion press machine and a method by means of which a user is able to operate the extrusion press machine safely and economically. In addition to or independently of this, however, a higher quality of the profile produced should also be achievable. Furthermore, changing the friction wheel should also be made easier and safer for the operator.
  • the advantage achieved in this way is that the provision of an additional shielding unit within the extrusion press in the area in which the extruded material to be formed is heated to the required forming temperature by means of the friction wheel minimizes the ingress of oxygen, as is present in the ambient air or prevented altogether.
  • a gas free of gaseous oxygen can thus be supplied by means of the nozzles provided in order to create an oxygen-poor or oxygen-free atmosphere in this area or machine section.
  • the high initial quality of the still undeformed extruded material can also be retained entirely or at least to a very high percentage in the profile produced.
  • the absorption of oxygen can be greatly minimized or prevented entirely in an outer edge area of the profile, and thus an even higher quality can be achieved in the manufacture of the profiles.
  • At least one of the nozzles is arranged or formed on the tool unit. If at least one of the nozzles is arranged on the tool unit, a reliable shielding effect can be achieved in that area with the highest material temperature. Furthermore, the supply and supply of the nozzles with the gas, in particular its line routing, can also take place in a simplified manner via the tool unit and the tool holding device.
  • the shielding unit also includes at least one shut-off valve, and the at least one shut-off valve of the at least one first nozzle is arranged upstream of the first nozzle in the area of the partial peripheral section of the friction wheel and viewed in the direction of rotation of the friction wheel.
  • the shielding unit comprises a further nozzle arrangement, which further nozzle arrangement in the direction of rotation of the Friction wheel is seen downstream of at least one second nozzle.
  • an additional blocking effect can also be created in the area following the scraping area in the direction of rotation of the friction wheel.
  • an additional barrier curtain against the ingress of oxygen can be provided.
  • the advantage achieved in this way is that by providing the sensor unit for determining a compressive force transmitted from the tool unit to the tool holding device and with prior knowledge of the forming force usually required, a conclusion can be drawn in the event of changes and deviations from this occurring errors or overloads can be recognized quickly. In this way, for example, damage to the extrusion press can be avoided if the forming force increases and the associated higher measured compressive force occurs.
  • the required or existing forming force can be recorded as a compressive force by the sensor unit in normal, normal forming operation and stored as a target value for each profile geometry with lower and upper limits. If, for example, the upper limit value is exceeded, the speed of the friction wheel can be reduced, for example, in order to carry out a proper forming operation within the specified limits without causing damage to the machine.
  • the first sensor unit comprises a plurality of sensors, in particular four, which are arranged in a peripheral edge area of the tool unit. If several sensors are provided to form the first sensor unit, a more uniform support and determination of pressure from the tool unit to the tool holding device can be made possible.
  • the first sensor unit is communicatively connected to a control and/or regulating device. This allows the currently measured and determined forming forces and/or pressure forces of the tool unit to be compared with specified forces within certain limits and, if they are exceeded or not reached, operating parameters such as the speed of the friction wheel, the feed speed of the extruded material, etc., can be adjusted to ensure proper To be able to ensure operation of the extrusion press.
  • Another embodiment is characterized in that at least one temperature control element is provided, which at least one temperature control element is accommodated in the receiving chamber and is arranged in front of the sensor unit in the direction of the friction wheel, the at least one temperature control element being designed to dissipate heat from the tool unit.
  • the prevailing temperature in the area of the sensor unit can also be kept the same within certain limits in order to be able to achieve more precise measurement results.
  • a further preferred embodiment is characterized in that the at least one temperature control element forms part of the tool unit.
  • a compact design of the tool unit can thus be created.
  • a basic distance value can be defined based on the determination of the distance value between the first tool component and the distance measuring device, which serves as a reference for temperature-related changes in length of the first tool component. Due to the temperature-related change in dimensions, namely an increase in the same, further distance values are subsequently determined during the ongoing forming operation in order to draw conclusions about the actual dimensions of this tool component. Furthermore, if the basic gap width is set in an initial state in which the extrusion press machine and the tool components are at a low temperature, in particular ambient temperature, the gap width can be readjusted during ongoing forming operation on the basis of the determined actual value of the gap width. In this way, collisions between tool components of the extrusion press machine that are moved relative to one another can be prevented or avoided.
  • the first determination or setting of the first distance value can also be referred to as a calibration step, in order to form a reference basis for the subsequent steps or method features.
  • the readjustment and setting of the gap width can also be referred to as an adjustment step.
  • a procedure is advantageous in which the determination of the first distance value is carried out at an initial temperature of the first tool component in a temperature range between 10° C. and 40° C. It can thus be ensured that the first tool component in its "cold state" has the usual dimensions without a temperature-related change in length.
  • a further advantageous procedure is characterized in that the first tool component is formed by a friction wheel of the extrusion press.
  • the first tool component is thus defined as a rotating component, which is used to introduce the necessary forming temperature into the extruded material to be formed.
  • a variant of the method is also advantageous in which the second tool component is formed by a tool unit accommodated in a tool holding device and held positioned in the tool holding device with at least one stripping element facing the first tool component, in particular the friction wheel. This allows a clear reference to be made between the two tool components for setting the gap.
  • the tool units are each formed or are formed with the same longitudinal dimensions in their longitudinal extent, starting from the stripping element up to a tool end surface arranged at a distance therefrom, viewed in the direction of passage of the profile produced.
  • the tool holding device is mounted pivotably about a pivot axis held on a base frame and can be pivoted between a working position and a release position. This means that a tool change can easily be carried out in the release position.
  • a further advantageous procedure is characterized in that when the second tool component, in particular the tool unit, is in contact with the first tool component, in particular the friction wheel, a basic angular position of the tool holding device with respect to the base frame is determined and stored in the control and/or regulating device.
  • a relative constantly recurring base position of the tool holding device with respect to the base frame can be determined and used as a reference basis for subsequent adjustment processes and adjustment processes.
  • a variant of the method is also advantageous in which, after the second tool component, in particular the tool unit, has been moved away, a target angular position is determined by the first tool component, in particular the friction wheel, and stored in the control and/or Control device is deposited. In this way, the predetermined angular position of the still “cold” extrusion press can be determined and recorded before the extrusion press is put into operation for the forming process.
  • Another procedure is characterized in that after a tool change has been carried out on the second tool component, in particular the tool unit, and when the first tool component, in particular the friction wheel, is at a standstill, the tool holding device together with the second tool component is pivoted from its release position towards the working position for as long as until the relative basic angular position between the tool holding device and the base frame is reached and the second tool component, in particular the tool unit, is brought into contact with the first tool component, in particular the friction wheel.
  • This makes it possible to control and check whether or not the predefined base angle position has been reached when the second tool component mechanically contacts the first tool component.
  • a procedure is advantageous in which, when the second tool component, in particular the tool unit, is in contact with the first tool component, in particular the friction wheel, before the relative basic angular position between the tool holding device and the base frame is reached, an error handling routine is started by the control and regulating device becomes.
  • an error handling routine is started by the control and regulating device becomes.
  • a further advantageous procedure is characterized in that the second tool component is formed by a scraping device with a scraper element. This makes it possible to also be able to position and adjust another tool component in relation to the first tool component. In the present example, this relates to the scraper device with its scraper element.
  • a variant of the method is also advantageous in which the scraper element is placed against the first tool component, in particular against the friction wheel, when approaching and infeeding in the direction of the first tool component.
  • the scraper element can also be positioned alone, and the gap setting can thus be carried out exactly.
  • the advantage of this embodiment of the extrusion press is that accessibility to the friction wheel to be changed can be significantly improved, since the entire first bearing device, including the drive wheel, can be adjusted from the working position located inside the base frame to a changing position located outside the base frame.
  • the first bearing device is completely removed from the drive shaft, as a result of which the friction wheel is also removed from the drive shaft and arranged at a distance.
  • a separate arm in particular a cantilever arm, is provided with a guide arrangement, which is used to hold the first bearing device during the relative adjustment movement.
  • the coupling device By means of the coupling device, it is possible to be able to keep the entire first storage device in a stationary position on the base frame.
  • a structural unit of the base frame that belongs together with the drive unit and the bearing unit, in particular the displaceable first bearing device, can be created in the operating state.
  • access and the use of tools to carry out the friction wheel changing process can be made easier for the operating personnel, even with larger and heavier friction wheels, possibly together with the driver rings. This can also reduce the risk of accidents and increase user-friendliness.
  • a more rapid friction wheel change can also be made possible and carried out in this way.
  • the second bearing device together with the drive shaft, is arranged in a stationary manner on the base frame. This can be made possible during the friction wheel changing process overhung storage of the drive shaft on the base frame, in which despite this, sufficient storage of the drive shaft is also maintained during the friction wheel changing process.
  • Another embodiment is characterized in that the at least one cantilever arm extends from the base frame to the side facing away from the drive device.
  • a simple and collision-free displacement adjustment of the first bearing device can thus be carried out.
  • an unhindered arrangement of the drive device is also possible.
  • Another possible embodiment has the features that the at least one cantilever arm is arranged in the vertical direction above the drive shaft and the first bearing device is held guided in a hanging arrangement on the at least one cantilever arm, or that one cantilever arm is arranged below the drive shaft and supports the first bearing device is guided on at least one cantilever arm.
  • the accessibility for carrying out the friction wheel change to the displaced and decoupled first bearing device can be further improved.
  • sufficient free space can also be created in the floor area with aids such as mobile transport devices, lifting devices or the like.
  • a simpler support can be achieved directly on the contact area for the system.
  • a further preferred embodiment is characterized in that the at least one cantilever arm is held on the base frame. In this way, a more precise alignment and positioning of the drive shaft and the first bearing device relative to one another can be made possible for carrying out the friction wheel changing process.
  • a further embodiment provides that the at least one friction wheel is held on the first bearing device, optionally with the interposition of a driver ring. This allows the friction wheel to be displaced together with the first bearing device from the base frame.
  • a support arrangement comprises at least one support device which at least a support device is or are arranged on at least one side facing away from the friction wheel, preferably on both sides facing away from the friction wheel, of the bearing devices on the drive shaft in a form-fitting position in the axial direction.
  • the support device comprises at least two support elements and the at least two support elements are arranged on the outside of the drive shaft.
  • the split design of the supporting device means that it can be arranged on the drive shaft safely and, above all, with minimal space requirements, as well as easy removal and disassembly.
  • the support elements are preferably designed as half-shells and thus enclose the drive shaft.
  • One possible design can be advantageous if several groove-shaped first depressions are provided in the drive shaft, spaced apart from one another in the axial direction, and a first support flange is formed between first depressions that are immediately adjacent in the axial direction, and that the support elements have second depressions of opposite design and between directly in Axially adjacent arranged second recesses each have a second support flange is formed. Due to the depressions designed in the form of annular grooves, a very precise design and arrangement of the depressions on the drive shaft can be achieved. The support elements, which are constructed in a manner that is opposite to this, engage with their second support flanges in the first depressions in the drive shaft. In this way, a very precise and almost play-free interlocking and, associated with this, a uniform power transmission can be achieved.
  • the advantage of this procedure is that accessibility to the friction wheel to be changed can be significantly improved, since the entire first bearing device and also the drive wheel can be adjusted from the working position inside the base frame to a changing position outside the base frame.
  • the first bearing device can be completely removed from the drive shaft, as a result of which the friction wheel is also removed from the drive shaft and arranged at a distance.
  • a separate arm in particular a cantilever arm, is provided with a guide arrangement, which is used to hold and support the first bearing device during the relative adjustment movement.
  • the coupling device it is possible to be able to keep the entire first storage device in a stationary position on the base frame.
  • a structural unit of the base frame that belongs together with the drive unit and the bearing unit, in particular the displaceable first bearing device, can be created in the operating state.
  • the first storage device together with the friction wheel By moving or adjusting the first storage device together with the friction wheel from its working position within the base frame, access and the use of tools to carry out the friction wheel changing process can be made easier for the operating personnel, even with larger and heavier friction wheels, possibly together with the driver rings. This can also reduce the risk of accidents and increase user-friendliness. Furthermore, a more rapid friction wheel change can also be made possible and carried out in this way.
  • a procedure is advantageous in which the drive shaft and a second bearing device supporting the drive shaft remain stationary on the base frame during the process of changing the friction wheel.
  • a cantilever mounting of the drive shaft on the base frame can be made possible, in which case a sufficient mounting of the drive shaft can still be maintained even during the friction wheel changing process.
  • a variant of the method is also advantageous in which the first bearing device is held in a suspended arrangement on the extension arm located vertically above the drive shaft and is guided on at least one extension arm, or that one extension arm is arranged below the drive shaft and the first bearing device is supported on the at least one extension arm to be led.
  • the accessibility for carrying out the friction wheel change to the displaced and decoupled first bearing device can be further improved.
  • sufficient free space can also be created in the floor area with aids such as mobile transport devices, lifting devices or the like.
  • a simpler support can be achieved directly on the contact area for the system.
  • the advantage of this embodiment of the extrusion machine is that the entire first bearing device does not have to be moved away from the base frame, but the two bearing devices can remain on the base frame for changing the friction wheel.
  • the split support device with at least two support elements, a secure arrangement on the drive shaft, which above all can be carried out with the smallest possible space requirement, and easy removal and disassembly of the same can take place.
  • the support elements are preferably designed as half-shells and thus enclose the drive shaft. This means that the drive shaft can be released from its coupling connection with the drive unit after the support device has been removed and pulled out of the second bearing device in the axial direction until the friction wheel is released without any further significant rotational movement.
  • An advantageous possible embodiment is characterized in that several groove-shaped first depressions are provided in the drive shaft, spaced apart from one another in the axial direction, and a first support flange is formed between first depressions that are directly adjacent in the axial direction, and that the support elements have second depressions of opposite design and between directly a second supporting flange is formed in each case in the second depressions arranged adjacent in the axial direction. Due to the depressions designed in the form of annular grooves, a very precise design and arrangement of the depressions on the drive shaft can be achieved. The support elements, which are constructed in a manner that is opposite to this, engage with their second support flanges in the first depressions in the drive shaft. In this way, a very precise and almost play-free interlocking and, associated with this, a uniform power transmission can be achieved.
  • the advantage of this procedure when changing the friction wheel is that the entire first bearing device does not have to be moved away from the base frame, but the two bearing devices can remain on the base frame for the friction wheel change.
  • the split support device with at least two support elements, a secure arrangement on the drive shaft, which above all can be carried out with the smallest possible space requirement, and easy removal and disassembly of the same can take place.
  • the support elements are preferably designed as half-shells and thus enclose the drive shaft. This means that the drive shaft can be released from its coupling connection with the drive unit after the support device has been removed and pulled out of the second bearing device in the axial direction until the friction wheel is released without any further significant rotational movement.
  • extrusion press 1 is shown in a highly stylized representation, which is used to produce profiles 2 starting from a deformable extruded material 3 .
  • This extrusion press machine 1 shown here represents a special form of extrusion press machine 1, which enables continuous production of profiles 2.
  • a continuously fed wire with a diameter between 5 and 30 mm is fed to the extrusion press 1 as extruded material 3 and heated there via a driven friction wheel 4 to up to 500° C. and above, depending on the material to be formed.
  • the then doughy material is pressed through a die arranged immediately after the friction wheel 4, with the shaping process taking place in this section.
  • This continuous process is primarily used for profiles 2 of small and medium-sized dimensions.
  • a wide variety of materials such as aluminium, copper, non-ferrous metals or their alloys can be formed.
  • the extrusion press machine 1 can in principle comprise a base frame 5 and a tool holding device 6 which is pivotably or rotatably mounted on a pivot axis 7 held on the base frame 5 .
  • the pivoting movement is illustrated in simplified form with a double arrow in the area of the pivot axis 7 .
  • the tool holding device 6 can thus be pivoted between a working position and a release position as required.
  • pivot drives or adjusting mechanisms have not been shown, it being mentioned that all devices or elements known from the prior art can be used here.
  • the tool holding device 6 is arranged downstream of the friction wheel 4 as viewed in the direction of passage of the profile 2 to be produced. So here the working position is indicated in solid lines and the release position is simplified in dashed lines.
  • the friction wheel 4 can be rotated about a drive axis 8 in a known manner and is also drive-connected to a drive device 9, indicated only schematically.
  • the drive axle 8 is formed by a drive shaft 44, which is in particular designed to be continuous, and represents a component of a drive unit 45.
  • the drive unit 45 is also in FIG 6 shown and described with the schematically simplified base frame 5 and other machine components.
  • the at least one provided friction wheel 4 also has at least one circumferential groove.
  • at least one pressure roller 10 can be assigned to the friction wheel or wheels 4, with which the extruded material 3 entering the extrusion press machine 1 and to be formed is pressed in the radial direction against the friction wheel or wheels 4.
  • the extrusion press machine 1 also includes a locking device 11 which, for example, is likewise pivotably mounted on the base frame 5 .
  • the locking device 11 serves to keep the tool holding device 6 positioned relative to the base frame 5, in particular the friction wheel 4, during its working position and during operation.
  • a double arrow entered in the area of the locking device 11 schematically represents the possibility of shifting the locking device 11.
  • the locking position for the tool holding device 6 is shown in solid lines.
  • the locking device 11 can be formed by an approximately U-shaped holding frame, in which the two holding arms are mounted pivotably on the side of the base frame 5 .
  • a base arm connecting the two holding arms on the outside encompasses, for example, the tool holding device 6 in the locking position and prevents the tool holding device 6 from pivoting away from its working position.
  • at least one is mostly on the tool holding device 6, which is only indicated schematically here Tool unit 12 supported, with a possible design and support of the tool unit 12 is described in more detail in one of the following figures.
  • a gap is formed between the tool unit 12 and the friction wheel 4 when the extrusion press machine 1 is in operation and thus when the tool holding device 6 is in the working position, in order to avoid collisions and the associated mechanical damage.
  • the width of the gap between the friction wheel 4 and the tool unit 12 depends on the temperature of the system parts on the one hand and signs of wear on the tool unit 12 on the other, a fairly exact and, above all, readjustable setting of the gap width of the gap can be an independent one in the present invention represent aspect.
  • maintaining and setting the gap width can represent an independent task of the invention and, in a corresponding manner, can also represent an independent solution independently of the other system parts and process steps described here.
  • a separate adjusting device 14 is arranged in an end region 13 of the tool holding device 6 which is at a distance from the pivot axis 7 and is opposite the drive axis 8 of the friction wheel 4 .
  • the adjusting device 14 has an adjusting element 15 designed to be adjustable relative to the base frame 5 .
  • the actuating element 15 in turn has a positioning surface 16 facing the end region 13 of the tool holding device 6 and a guide surface 17 facing away from the tool holding device 6 .
  • the actuating surface 16 and the guide surface 17 are aligned in a wedge-shaped manner relative to one another.
  • the guide surface 17 is supported on a section of the base frame 5 which is not designated in any more detail and is designed in particular as a sliding surface.
  • the adjusting element 15 is also connected to an unspecified adjusting mechanism and can be adjusted relative to the base frame 5 in the direction of a double arrow shown schematically.
  • the guide surface 17 and the section of the base frame 5 designed as a sliding surface are oriented in the vertical or perpendicular direction here.
  • the tapering wedge shape is aligned in the direction of a contact surface of the extrusion press machine 1 and thus also in the direction of the pivot axis 7 arranged near the ground.
  • the inclined running surface 16 thus runs from top left to bottom right, as can be seen from the side view of the extrusion press machine 1 can.
  • the tool holding device 6 has a support surface 18 on its end region 13 spaced apart from the pivot axis 7 and on a first side facing the friction wheel 4 .
  • the support surface 18 arranged or formed on the tool holding device 6 is supported on the positioning surface 16 of the actuating element 15 .
  • the locking device 11 described above also has at least one pressure unit 19 with at least one pressure element 20 .
  • the pressure element 20 is also arranged on the end region 13 spaced from the pivot axis 7 , but is in contact with the tool holding device 6 on a second side facing away from the friction wheel 4 . Furthermore, the support surface 18 of the tool holding device 6 is pressed against the positioning surface 16 of the actuating element 15 by means of the pressure unit 19 .
  • the tool holding device 6 can be rotated about its pivot axis 7 due to the wedge-shaped, in particular acute-angled, positioning surface 16 and guide surface 17 can be adjusted, in particular pivoted. Since the tool holding device 6 corresponds in the broadest sense to a lever or a lever arrangement, the gap formed between the tool unit 12 and the friction wheel 4 can also be changed in its gap width as a result of the adjustment of the actuating element. The determination and setting of the gap width will be described in more detail below.
  • the pressure element 20 of the pressure unit 19 is accommodated in a pressure chamber 21 at least in some areas and is acted upon by a pressure medium which is indicated in simplified form by dashes and is located in the pressure chamber 21 .
  • the pressure medium can be liquid or gaseous, with a virtually incompressible liquid, such as hydraulic oil, having turned out to be favorable, particularly at high pressures.
  • the pressure element 20 can be designed, for example, as a double-acting piston with a piston rod of a cylinder-piston arrangement, with which the pressure element 20 is then pressed against the second side of the tool holding device 6 facing away from the support surface 18 when it is pressurized accordingly.
  • the adjusting element 15 of the adjusting device 14 is adjusted, not only is the position of the tool holding device 6 relative to the base frame 5, in particular the friction wheel 4, shifted, but there is also a change in volume of the pressure medium accommodated in the pressure chamber, as a result of which the pressure element 20 in its relative position with respect to the printing unit 19 is adjusted.
  • pressure relief valves can be used to avoid a rigid system and to enable the pressure element 20 to be adjusted. The compressive force built up by the pressure unit 19 remains unchanged within certain limits and thus keeps the tool holding device 6 together with the tool unit 12 held therein in the working position.
  • the pressure medium in the pressure chamber 21 is automatically compensated Direction to the friction wheel 4 as can also be pivoted in a direction opposite thereto.
  • the constant holding and locking of the tool holding device 6 in its end region 13 is maintained unchanged by the locking device 11 and there is always a snug fit of the support surface 18 of the tool holding device 6 on the positioning surface 16 of the actuating element 15.
  • the actuating element 15 is, as already described above , On its guide surface 17 further supported on the base frame 5 preferably sliding and optionally out.
  • a receiving chamber 22 is formed or arranged in the tool holding device 6 .
  • the outlines of the receiving chamber 22 are shown only in simplified form, with the tool unit 12 being received in it.
  • the receiving chamber 22 has at least two first and second positioning surfaces 23, 24 which are aligned at an angle, in particular at right angles, with respect to one another and on which the tool unit 12 is supported.
  • the first positioning surface 23 is arranged on the side of the tool unit 12 facing away from the friction wheel 4 in the exemplary embodiment shown here.
  • the receiving chamber 22 is designed to be open in the direction of the friction wheel 4 .
  • the first positioning surface 23 can be aligned approximately vertically and in the perpendicular direction with respect to the direction of passage of the profile 2.
  • the extrusion press machine 1 is shown in simplified form with the tool unit 12 accommodated and supported in the tool holding device 6, although this can optionally represent an independent design.
  • the same reference numerals or component designations as in the previous section are used for the same parts 1 be used.
  • the basic structure can be analogous to what has already been described above.
  • first sensor unit 25 In the exit area of the profile 2 from the tool unit 12 , this is supported on the tool holding device 6 with the interposition of a first sensor unit 25 , in particular a force measuring sensor or several force measuring sensors, resting on the first positioning surface 23 .
  • the first sensor unit 25 can, for example, consist of pressure sensors, quartz sensors, Be formed load cells or the like.
  • a plurality of sensors 26 are preferably used to form the first sensor unit 25 in order to achieve uniform and mostly symmetrical support of the tool unit 12 on the tool holding device 6 in the area of its first positioning surface 23 .
  • Four pieces of sensors 26 can preferably be provided.
  • a separate temperature control element 27 can be arranged or formed between the tool unit 12 and the tool holding device 6 .
  • the temperature control element 27 can, for example, be designed as a separate cooling plate and is used to minimize or prevent a direct transfer of heat from the tool unit 12 to the first sensor unit 25.
  • the temperature control element 27 can also represent or form a component or a structural unit of the tool unit 12 .
  • the supply lines for transporting the temperature control medium, in particular a cooling medium, or the like have not been shown.
  • the sensor unit 25 with its sensors 26 is also communicatively connected to a control and/or regulating device 36 . This can be done by means of lines or also wirelessly. A line connection between the sensors 26 and the control and/or regulating device 36 is indicated in simplified form.
  • the forming force that occurs under normal operating conditions can be determined by determining a minimum first distance and converting it to the compressive forces that occur in the process.
  • the usual operating conditions are operating parameters specified by the machine manufacturer, under which the forming force that occurs is determined.
  • the forming force can be dependent on the extruded material 3 supplied and provided for forming and on the profile 2 formed therefrom.
  • Overloading and an associated increase in the pressure forces occurring could occur, for example, with an increase in the number of revolutions of the friction wheel 4 per unit of time and/or an associated increased mass throughput of material to be formed per unit of time.
  • the revolutions of the friction wheel 4 per unit of time or other operating parameters can be reduced by means of a machine control (not shown in detail).
  • determining and establishing the formed forming force this can be stored in a memory and subsequently provide the machine manufacturer or another operator with clear and unambiguous evidence of machine overload. This is particularly the case when it comes to proving repairs and the cause of damage.
  • the extrusion press machine 1 is shown in simplified form with the tool unit 12 accommodated and supported in the tool holding device 6, which in turn can optionally represent an independent design.
  • the same reference numerals or component designations as in the preceding sections are used for the same parts 1 and 2 be used. To avoid unnecessary repetition, reference is made to the detailed description in the foregoing 1 and 2 pointed out or referred to.
  • the material to be formed is basically produced without oxygen.
  • the heated material absorbs oxygen from the ambient air, in particular in or under the outer skin or outer layer of the profile 2 produced.
  • a shielding unit 28 is indicated here in the working area of the friction wheel 4 in simplified form. This is intended to minimize or completely prevent oxidation or oxygen uptake.
  • the shielding unit 28 usually comprises a number of structural components and extends over a partial peripheral section 29 of the friction wheel 4 , at which at least part of the heating of the extruded material 3 to be formed begins and is continued up to a stripping area 30 .
  • the stripping area 30 is located in the tool unit 12, with the deflection and stripping of the heated material taking place in a known manner from a part of the tool unit 12, in the present exemplary embodiment from a stripping element 31.
  • the access of ambient air should also be minimized or completely prevented in the stripping area 30 of the heated extruded material 3 to be shaped.
  • the shielding unit 28 that an atmosphere is created within the previously described area in which the material is already in a heated state, which prevents oxidation or oxygen absorption.
  • a gas free of gaseous oxygen can be supplied by means of one or more first nozzles 32, which are preferably arranged or formed in the region of the tool holding device 6, in particular in the vicinity of its receiving chamber 22.
  • This gas can also be an inert gas and can be formed, for example, by nitrogen and/or noble gases.
  • the noble gases include e.g. helium, neon and argon.
  • protective gases such as those used in welding technology would also be possible.
  • the supply line, shut-off devices or the like have not been shown.
  • the first nozzle 32 or the first nozzles 32 is/are facing the peripheral section 29 of the friction wheel 4 and is/are located above the stripping element 31. It would also be possible to have the first nozzle 32 or the first nozzles 32 in or on the tool unit 12 to arrange or train.
  • one or more second nozzles 33 can also be arranged or formed in this area.
  • the second nozzle 33 or the second nozzles 33 is/are, as seen in the direction of rotation of the friction wheel 4, arranged following the partial peripheral section 29 of the friction wheel 4 and can also face this.
  • the second nozzles 33 is/are preferably arranged or formed below the stripping element 31 . It would also be possible in turn to position the second nozzle 33 or the second nozzles 33 in or to be arranged or formed on the tool unit 12 .
  • the nozzles 32, 33 are preferably supplied with the same gas and can form the low-oxygen or oxygen-free atmosphere in the heated area of the extruded material 3 to be shaped with the outflowing gas.
  • the shielding unit 28 in the first contact area of the extruded material 3 and thus in the feed area of the same to the friction wheel 4 comprises a shut-off flap 34 arranged there.
  • a shut-off flap 34 arranged there.
  • the supplied gas which can also be referred to as protective gas, is preferably supplied into this shielding area at a pressure that is slightly higher than the ambient pressure, in order to ensure that the supplied gas flows away.
  • an ingress of ambient air to the second nozzle 33 or nozzles 33 located below the scraper element 31 can also be minimized or prevented entirely with a gas curtain flowing out or formed by a further nozzle arrangement 35 .
  • the gas that is fed in and flows out here can also be a gas that has already been described above and is free of gaseous oxygen. However, a different gas could also be used. Depending on the outflow direction, ambient air could also be used.
  • nozzle or nozzles 32, 33 and/or the further nozzle arrangement 35 have only been indicated schematically. These are in fluid communication with a supply unit (not shown) or a storage unit via a line connection.
  • the extrusion press machine 1 basically comprises a plurality of tool components, of which, for example, a first tool component can form the friction wheel 4 and a second tool component can form the tool unit 12 .
  • the extrusion press machine 1 is shown in simplified form with the tool unit 12 with the stripping element 31 accommodated and supported in the tool holding device 6, whereby this in turn can optionally represent an independent design.
  • the same reference numerals or component designations as in the preceding sections are used for the same parts Figures 1 to 3 be used. To avoid unnecessary repetition, reference is made to the detailed description in the foregoing Figures 1 to 3 pointed out or referred to.
  • the extrusion press machine 1 comprises at least the base frame 5 with the tool holding device 6, which is mounted so that it can pivot about the pivot axis 7.
  • the friction wheel 4 is used for friction-based heating of the extruded material 3 to be formed of the base frame 5, in particular the friction wheel 4 to keep positioned.
  • the first tool component is formed by the friction wheel 4 and the second or further tool component by the tool unit 12 accommodated in a tool holding device 6 and held in a position in the tool holding device 6 with at least the stripping element 31 facing the friction wheel 4. For this reason, specific reference is made to these designations below.
  • a first distance value between the friction wheel 4 and a distance measuring device 37 is determined or previously defined geometrically. This one is with “a” in the 4 registered.
  • the first distance value is or will be deposited or stored in the control and/or regulating device 36 .
  • the tool unit 12 is then approached and fed to the friction wheel 4, which is still stationary, until the stripping element 31 comes to rest on the friction wheel 4, in particular in the bottom of the groove.
  • a first adjustment path is also stored in the control and/or regulating device 36, the value of which corresponds to a basic gap width to be set.
  • the tool unit 12 resting on the friction wheel 4 is then moved away by the first adjustment path stored in the control and/or regulating device 36, with the gap between the friction wheel 4 and the tool unit 12 then being formed with the basic gap width. If this has been done correctly, the extrusion press machine 1 can be put into operation and the process of forming the extruded material 3 into the profile 2 can be carried out. Due to the forming process and the resulting frictional heat, temperature-related dimensional changes occur in components of the extrusion press machine 1, in particular the friction wheel 4.
  • the distance measuring device 37 is used to continually determine and establish further distance values between the friction wheel 4 and the distance measuring device 37. Due to the increase in temperature of the friction wheel 4, its diameter becomes larger than in its "cold" initial state. A distance difference value can thus be formed from the first distance value minus one of the further distance values. Based on these values, an actual value of a gap width between the friction wheel 4 and the tool unit 12 can be calculated. The distance difference value is subtracted from the value of the basic gap width, which value corresponds to that of the first adjustment path, and the actual value of a gap width between the friction wheel 4 and the tool unit 12, in particular its stripping element 31, is calculated.
  • a value range with a lower target value for the gap width and an upper target value for the gap width can be or is stored in the control and/or regulating device 36 . Based on the calculated actual value of the gap width, it is now checked whether the calculated actual value is within the limits of the lower setpoint and the upper setpoint of the value range. If the gap width falls below the lower target value, the tool unit 12 must be moved away by a correction value stored in the open-loop and/or closed-loop control device 36 to the side or direction facing away from the friction wheel 4 . If the upper target value of the gap width is exceeded, the tool unit 12 must be moved in or out in the direction of the friction wheel 4 .
  • the tool holding device 6 together with the tool unit 12 can be adjusted away or adjusted by means of the adjusting device 14 described above in cooperation with the locking device 11 and the pressure unit 19 .
  • These adjustment movements can also be referred to as tracking steps.
  • This adjustment movement and readjustment can take place during operation under full load. This has the advantage that the machine does not have to be shut down, but that the gap width can be changed directly and immediately. This can be done with the above-described adjusting element 15 of the adjusting device 14 embodied as an adjusting wedge.
  • the determination of the first distance value is to be carried out in the so-called "cold state" of the friction wheel 4, in particular when the same is at an initial temperature in a temperature range between 10.degree. C. and 40.degree.
  • a change in the diameter of the friction wheel 4 can also be calculated and determined.
  • the geometry, in particular the diameter or diameters, of the friction wheel 4, which serve as a measuring surface for determining the distance is known from the design and manufacture. In this way, the actual value of the gap width between the two tool components can also be determined in an analogous manner via the thermal increase in the diameter dimension.
  • all tool units 12 used in the present extrusion press machine 1, in particular in its tool holding device 6, are each in their longitudinal extent, starting from the stripping element 31 up to a direction in the passage of the profile 2 produced tool end surface 38 arranged at a distance therefrom is formed with a longitudinal dimension equal to one another.
  • the tool end surface 38 is located on the side facing away from the friction wheel 4 and is supported on the tool holding device 6 in the region of the first positioning surface 23 , possibly with the interposition of the sensor unit 25 , not shown in detail here.
  • the respective relative angular position of the tool holding device 6 with respect to the physical pivot axis 7 and/or with respect to the base frame 5 can be determined and established.
  • the respective relative angular position between the physical pivot axis 7 and the base frame 5 could also be determined when the physical pivot axis 7 is firmly connected to the tool holding device 6 .
  • a basic angular position of the tool holding device 6 with respect to the base frame 5 can be determined when the tool unit 12, in particular its stripping element 31, is in contact with the friction wheel 4 and stored in the control and/or regulating device 36. If the above-described basic gap width has been set, at which the tool holding device 6 is moved away from the friction wheel 4 , a target angular position of the tool holding device 6 can be determined and stored in the control and/or regulating device 36 .
  • the basic angular position described above and stored can be used. For example, if an object is located between the first positioning surface 23 and the tool end surface 38 of the tool unit 12, it will project further towards the friction wheel 4 than if the object were not present.
  • the tool holding device 6 together with the tool unit 12 can be pivoted from its release position towards the working position for as long as until the relative basic angular position between the tool holding device 6 and the base frame 5 or the fixed pivot axis 7 is reached and the second tool component, in particular the tool unit 12, is brought into contact with the first tool component, in particular the friction wheel 4.
  • an error handling routine can be started by the control and regulating device 36.
  • the machine operator can be signaled before the machine is put into operation that the positioning is not correct and that the relative position of the tool unit 12 in the receiving chamber 22 must be checked and corrected if necessary. Damage to the extrusion press machine 1 can thus be avoided.
  • the distance measuring device 37 which can be formed by a wide variety of sensors or measuring means, and the sensor or sensors 39 can together form a further sensor unit.
  • the extrusion press machine 1 is shown in simplified form with the tool unit 12 with the stripping element 31 accommodated and supported in the tool holding device 6, whereby this in turn can optionally represent an independent design.
  • the same reference numerals or component designations as in the preceding sections are used for the same parts Figures 1 to 4 be used. To avoid unnecessary repetition, reference is made to the detailed description in the foregoing Figures 1 to 4 pointed out or referred to.
  • the extrusion press machine 1 comprises at least the base frame 5 with the tool holding device 6, which is mounted so that it can pivot about the pivot axis 7.
  • the friction wheel 4 is used for friction-based heating of the extruded material 3 to be formed of the base frame 5, in particular the friction wheel 4 to keep positioned.
  • a scraping device 40 is arranged downstream of the tool unit 12 , viewed in the direction of rotation of the friction wheel 4 .
  • the scraper device 40 comprises at least one scraper element 41 that can be adjusted relative to the friction wheel 4 embodied here as the first tool component.
  • the at least one scraper element 41 is also to be positioned with a corresponding gap relative to the friction wheel 4 and to be readjusted during the ongoing forming operation due to thermal changes in length.
  • the scraper element 41 is preferably held or guided in a base housing 42 and can be adjusted in its relative location and position with respect to the first tool component by means of an actuator 43 .
  • the first tool component is formed by the friction wheel 4 and the second or further tool component by the scraping device 40 with the scraper element 41 .
  • the scraping device 40 is formed by the friction wheel 4 and the second or further tool component by the scraping device 40 with the scraper element 41 .
  • specific reference is made to these designations below.
  • the illustration of adjusting means for the scraping device 40 and/or the at least one scraper element 41 has been omitted for the sake of better clarity.
  • a first distance value between the friction wheel 4 and the distance measuring device 37 is determined or previously defined geometrically. This one is with "a" in the figure 5 registered.
  • the first distance value is or will be deposited or stored in the control and/or regulating device 36 .
  • the scraping device 40 and/or the scraper element 41 is then approached and delivered to the friction wheel 4, which is still stationary, until the scraper element 41 comes to rest on the friction wheel 4, in particular in the bottom of the groove.
  • a first adjustment path is also stored in the control and/or regulating device 36, the value of which corresponds to a basic gap width to be set.
  • the distance measuring device 37 is arranged or accommodated here on or in the base housing 42 . It is also possible to use the distance measuring device 37 described and shown here for the previously described in FIG 4 to use the distance measurement described. The same reference number was therefore also used for the distance measuring device 37 .
  • the scraping device 40 and/or the scraper element 41 that is in contact with the friction wheel 4 is then displaced by the first displacement path stored in the control and/or regulating device 36, in which case the gap between the friction wheel 4 and the scraping device 40 and/or the scraper element 41 is or will be formed with the base gap width. If this has been done correctly, the extrusion press machine 1 can be put into operation and the process of forming the extruded material 3 into the profile 2 can be carried out. Due to the forming process and the resulting frictional heat, temperature-related dimensional changes occur in components of the extrusion press machine 1, in particular the friction wheel 4.
  • the distance measuring device 37 is used to continually determine and establish further distance values between the friction wheel 4 and the distance measuring device 37. Due to the increase in temperature of the friction wheel 4, its diameter becomes larger than in its "cold" initial state. A distance difference value can thus be formed from the first distance value minus one of the further distance values. Based on these values, an actual value of a gap width between the friction wheel 4 and the scraper device 40 and/or the scraper element 41 can be calculated. The distance difference value is subtracted from the value of the base gap width, which value corresponds to that of the first adjustment path, and the actual value of a gap width between the friction wheel 4 and the scraper device 40, in particular its scraper element 41, is calculated.
  • a value range with a lower target value for the gap width and an upper target value for the gap width can be or is stored in the control and/or regulating device 36 . Based on the calculated actual value of the gap width, it is now checked whether the calculated actual value is within the limits of the lower setpoint and the upper setpoint of the value range. If the gap width falls below the lower target value, the tool unit 12 must be moved away by a correction value stored in the open-loop and/or closed-loop control device 36 to the side or direction facing away from the friction wheel 4 . If the upper target value of the gap width is exceeded, the scraper device 40 and/or the scraper element 41 must be adjusted in or out in the direction of the friction wheel 4 . These adjustment movements can also be referred to as tracking steps.
  • the determination of the first distance value should be carried out in the so-called "cold state" of the friction wheel 4, in particular at an initial temperature of the same in a temperature range between 10.degree. C. and 40.degree.
  • the extrusion press machine 1 with its base frame 5 and the drive unit 45 for the friction wheel 4 is shown in a greatly simplified front view.
  • the presentation of the tool holding device 6, the locking device 11 and the tool unit 12 has been omitted for the sake of clarity, the extrusion machine 1 can be designed in the same way as previously in FIGS Figures 1 to 5 has been described. Individual or even all of the machine components described above can also be used in this extrusion press machine 1 .
  • the drive unit 45 comprises at least the drive device 9, the drive shaft 44, which defines the drive axle 8, and optionally a clutch 46.
  • the at least one friction wheel 4 is drive-connected to the drive device 9.
  • a driver ring 47 can be provided on both sides of the friction wheel 4 , by means of which the drive torque can be transmitted from the drive device 9 to the friction wheel 4 .
  • the drive shaft 44 is rotatably mounted on the base frame 5 by means of a bearing unit 48 comprising a first bearing device 49 and a second bearing device 50 .
  • the bearing devices 49, 50 can include not only their bearing arrangements, but also housings, guide means, fasteners or the like and each represents a separate structural component.
  • the at least one friction wheel 4 can optionally be held on the first bearing device 49 with a driver ring 47 interposed be.
  • a coupling device 51 is provided between the first bearing device 49 and the base frame 5 .
  • the coupling device 51 could also be referred to as a coupling device and serves to detachably couple or couple the entire first bearing device 49 to the base frame 5 .
  • the coupling device 51 can be adjusted from its coupling position into a decoupling position.
  • actuating means for actuating the coupling device 51 such as cylinders, actuators or the like, has also been omitted for the sake of clarity.
  • the first bearing device 49 is shown in two different positions.
  • the coupling position is shown on the base frame 5, in which the drive shaft 44 is mounted on the base frame 5 by means of the first bearing device 49 .
  • the position that is decoupled and moved away from the base frame 5 is shown in dot-dash lines.
  • One option for guided adjustment is described below.
  • the extrusion press machine 1 also includes at least one cantilever arm 52 which is arranged or configured to extend in a direction parallel to the drive axis 8 .
  • the at least one cantilever arm 52 is arranged in the vertical direction above the drive shaft 44 and at a distance from it.
  • the cantilever arm 52 could also be arranged on the bottom side and thus below the drive shaft 44 .
  • the cantilever arm 52 can also be connected to the base frame 5 or attached thereto.
  • the cantilever arm 52 can also be arranged or designed to extend from the base frame 5 to the side facing away from the drive device 9 .
  • the first bearing device 49 can be held guided in a hanging arrangement on at least one cantilever arm 52.
  • a guide arrangement 53 can be provided, which is arranged or formed on at least one cantilever arm 52 .
  • the cantilever arm 52 can also be arranged below the drive shaft 44, viewed in the vertical direction, and extends in parallel alignment with respect to the drive axis 8 defined by the drive shaft 44.
  • the cantilever arm 52 is preferably on an unspecified Supporting area, such as a hall floor or a foundation area specially provided for this purpose, it is supported or supported on this.
  • the cantilever arm 52 can also be connected to the base frame 5 or attached thereto.
  • the cantilever arm 52 can also be arranged or designed to extend from the base frame 5 to the side facing away from the drive device 9 .
  • the first storage device 49 of the storage unit 48 is then not guided in a hanging position but in a standing position or in a position projecting from the bottom side by means of the guide arrangement 53 on the at least one cantilever arm 52 .
  • the entire first bearing device 49 together with the friction wheel 4 can be moved away from the drive shaft 44 to such an extent that easy access to the friction wheel 4 is made possible.
  • the drive shaft 44 In order to transmit the drive torque from the drive shaft 44 to the at least one friction wheel 4, the drive shaft 44 is axially braced against bearing components of the two bearing devices 49 and 50 and the friction wheel 4 located between them.
  • a tensioning device 54 generates a tensile force acting in the axial direction applied to the drive shaft 44 and thus those components mounted or arranged on the drive shaft 44 are biased against one another.
  • the at least one friction wheel 4 can be held in a preferably clamped position on the drive shaft 44 in a rotationally fixed manner.
  • the previously described carrier ring(s) 47 can also be provided and arranged on one side of the friction wheel 4 or on both sides of the friction wheel 4 .
  • a support arrangement 55 is provided here to support at least one of the bearing devices 49, 50 on the drive shaft 44 in the axial direction.
  • the support arrangement 55 comprises a first support device 56 and a second support device on the opposite sides of the two bearing devices 49, 50 57.
  • the support devices 56, 57 can be of the same design.
  • Each of the support devices 56, 57 includes at least two support elements 58.
  • the support elements 58 are segmented and include or surround the drive shaft 44 on the outside.
  • the support elements 58 are supported in the axial direction on the drive shaft 44 in a form-fitting manner. If two pieces of support elements 58 are provided, they can be designed or referred to as half-shells.
  • the clamping device 54 which can be designed as a hydraulic motor, for example, an axial compressive force is built up by this. Due to the arrangement of the supporting devices 56, 57 on both sides and the clamping device 54 located in the axial direction within the supporting devices 56, 57, an axial tensile force is introduced into the drive shaft 44 during the clamping or clamping process. In this arrangement, the tensioning device 54 is pushed onto the drive shaft 44 and is mounted on it in a longitudinally displaceable manner. In the 9 An enlarged detail of the support assembly 55 on a portion of the driveshaft 44 is shown.
  • the compressive force acting from the tensioning device 54 between the two support devices 56, 57 must be removed. Once this has taken place, the support elements 58 of the first support device 56 are to be disengaged from the drive shaft 44 . Subsequently, the entire first bearing device 49 together with the friction wheel 4, optionally the driver ring or rings 47, the tensioning device 54 and the disengaged support elements 58 of the first support device 56 can be moved away from the drive shaft 44. This takes place along the cantilever arm 52 and the previously described guide arrangement 53. The operating position or the coupling position of the first bearing device 49 is shown in dashed lines in order to be able to show the clamping device 54 and the first supporting device 56 on the drive shaft 44 located within it more clearly.
  • the position of the first bearing device 49 that is decoupled and moved away from the base frame 5 is shown in dot-dash lines, but the friction wheel 4, the driver rings 47, the clamping device 54 and the first support device 56 are shown in solid lines.
  • the support members 58 of the first support device 56 are shown in a spaced apart position. The displacement away from the drive axle 8 can take place, for example, by means of a pivoting process or a sliding movement taking place in the radial direction.
  • the two-sided arrangement of both the first support device 56 and the second support device 57 can also be used in the case of FIG 6 described extrusion machine 1 are used with the suspended arrangement of the first bearing device 49 on the cantilever arm 52.
  • the drive shaft 44 is pulled out of the second bearing device 50 in the axial direction on the side facing away from the drive device 9 such that the friction wheel 4 and the or the driver rings 47 are no longer on the drive shaft 44.
  • a support device 56 is provided here only in the area of second bearing device 50 on the side of second bearing device 50 facing away from friction wheel 4 .
  • the clamping device 54 is arranged on the side of the first bearing device 49 facing away from the second bearing device 50 on the drive shaft 44 and is held fixed directly on this in the axial direction. This can be done e.g. by means of a positive-locking thread arrangement.
  • the clamping force built up by the clamping device 54 must be removed.
  • the coupling connection of the drive shaft 44 in the area of the coupling 46 is then to be released.
  • the coupling connection can be made, for example, by means of multiple splines or the like.
  • the decoupled drive shaft 44 can then be moved out of the second bearing device 50 in the axial direction, in particular pulled out, if necessary together with the tensioning device 54 , and the friction wheel 4 can be released from its bearing seat on the drive shaft 44 .
  • the friction wheel 4 and the driver ring or rings 47 remain between the two bearing devices 49, 50 until the drive shaft 44 releases them and can be removed from the extrusion press machine 1 to change the friction wheel.
  • For longitudinal adjustment of the drive shaft 44 and possible support can in turn previously in the 7 described cantilever arm 52 together with the guide arrangement 53 are used, which can be arranged on the ground side or else in the vertical direction above the drive axle 8 .
  • the drive shaft 44 is held on an auxiliary carriage 59 during its axial longitudinal adjustment along the guide arrangement 53 of the cantilever arm 52 .
  • the auxiliary carriage 59 is guided on the guide arrangement 53, the drive shaft 44 together with the auxiliary carriage 59 being able to be displaced relative to the stationary first bearing device 49 or the base frame 5.
  • one of the support elements 58 of the support devices 56, 57 is shown in axial section and on an enlarged scale.
  • the one support element 58 is also spaced apart from the drive shaft 44 in the radial direction and is therefore shown disengaged from it.
  • the position of engagement between the support element 58 and the drive shaft 44 is indicated in dashed lines.
  • the mutual support between the support elements 58 and the drive shaft 44 in the axial direction takes place by means of a form-fitting holding connection.
  • a plurality of groove-shaped first depressions 60 are provided in the drive shaft 44 one behind the other and spaced apart from one another in the axial direction, between which first support flanges 61 are formed in each case.
  • the number of load-transmitting first support flanges 61 is to be selected depending on the axial force to be supported.
  • the groove-shaped depressions 60 can be formed in the drive shaft 44 by means of so-called recesses, for example.
  • the support elements 58 are each provided on their inner surfaces facing the drive shaft 44 with oppositely formed groove-shaped second depressions 62 and each between these formed second support flanges 63 .
  • the second support flanges 63 engage with almost no play in the first groove-shaped depressions 60 and vice versa.
  • the support elements 58 viewed in axial section starting from the force application side—according to arrow “F”—have a conically or conically tapering cross section. It is thus achieved that between the first and second support flanges 61, 63 which are in engagement in each case, a uniformly distributed introduction of force or force transmission can be achieved over the entire number of these. In a thread arrangement, usually only the first thread turns are load-transmitting, which leads to overloading and damage to the thread turns.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Extrusion Of Metal (AREA)
  • Automatic Assembly (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Press Drives And Press Lines (AREA)
EP22204757.3A 2017-06-02 2018-06-01 Presse d'extrusion avec une unité de détection Active EP4151327B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ATA50469/2017A AT520033B1 (de) 2017-06-02 2017-06-02 Strangpressmaschine
EP18740084.1A EP3630383B1 (fr) 2017-06-02 2018-06-01 Procédé de régulation d'espacement dans une presse à extruder
EP21178505.0A EP3912742B1 (fr) 2017-06-02 2018-06-01 Machine à extruder, ainsi que procédé de changement d'une roue de friction dans une machine à extruder
PCT/AT2018/060114 WO2018218270A2 (fr) 2017-06-02 2018-06-01 Presse à extruder, procédé de commande d'espacement et procédé de remplacement d'une roue à friction dans une presse à extruder

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP21178505.0A Division-Into EP3912742B1 (fr) 2017-06-02 2018-06-01 Machine à extruder, ainsi que procédé de changement d'une roue de friction dans une machine à extruder
EP21178505.0A Division EP3912742B1 (fr) 2017-06-02 2018-06-01 Machine à extruder, ainsi que procédé de changement d'une roue de friction dans une machine à extruder
EP18740084.1A Division EP3630383B1 (fr) 2017-06-02 2018-06-01 Procédé de régulation d'espacement dans une presse à extruder

Publications (2)

Publication Number Publication Date
EP4151327A1 true EP4151327A1 (fr) 2023-03-22
EP4151327B1 EP4151327B1 (fr) 2024-09-04

Family

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Family Applications (4)

Application Number Title Priority Date Filing Date
EP18740084.1A Active EP3630383B1 (fr) 2017-06-02 2018-06-01 Procédé de régulation d'espacement dans une presse à extruder
EP22204757.3A Active EP4151327B1 (fr) 2017-06-02 2018-06-01 Presse d'extrusion avec une unité de détection
EP21178505.0A Active EP3912742B1 (fr) 2017-06-02 2018-06-01 Machine à extruder, ainsi que procédé de changement d'une roue de friction dans une machine à extruder
EP22204756.5A Active EP4169635B1 (fr) 2017-06-02 2018-06-01 Presse d'extrusion avec une unité écran

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EP18740084.1A Active EP3630383B1 (fr) 2017-06-02 2018-06-01 Procédé de régulation d'espacement dans une presse à extruder

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Application Number Title Priority Date Filing Date
EP21178505.0A Active EP3912742B1 (fr) 2017-06-02 2018-06-01 Machine à extruder, ainsi que procédé de changement d'une roue de friction dans une machine à extruder
EP22204756.5A Active EP4169635B1 (fr) 2017-06-02 2018-06-01 Presse d'extrusion avec une unité écran

Country Status (5)

Country Link
US (4) US11446721B2 (fr)
EP (4) EP3630383B1 (fr)
AT (1) AT520033B1 (fr)
PL (2) PL3630383T3 (fr)
WO (1) WO2018218270A2 (fr)

Citations (9)

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GB2241660A (en) * 1990-03-24 1991-09-11 Atomic Energy Authority Uk Improvements in extrusion
WO1996002335A1 (fr) * 1994-07-15 1996-02-01 Bwe Limited Dispositif d'extrusion continue
GB2310627A (en) * 1996-03-01 1997-09-03 Outokumpu Copper Oy Method for the continuous extrusion of metals
JPH10166035A (ja) * 1996-12-11 1998-06-23 Hitachi Cable Ltd 金属材の製造方法及び装置
US5782120A (en) * 1993-12-21 1998-07-21 Holton Machinery Ltd. Continuous extrusion
WO2000029141A1 (fr) * 1998-11-16 2000-05-25 Holton Machinery Extrusion en continue a positionnement dynamique du sabot
GB2386334A (en) * 2002-02-14 2003-09-17 Holton Machinery Ltd Continuous extrusion using dynamic shoe positioning
WO2015070274A2 (fr) 2013-11-18 2015-05-21 Asmag-Holding Gmbh Unité d'outil, extrudeuse et procédé de remplacement d'une roue à friction
US20150151343A1 (en) * 2012-07-30 2015-06-04 Meltech Cre Limited Continuous extrusion apparatus

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DE1452372C3 (de) * 1965-09-14 1974-04-11 Lindemann Maschinenfabrik Gmbh, 4000 Duesseldorf Matrizenwechse!vorrichtung für zwei Matrizen an einer Metallstrangpresse
US4523444A (en) * 1982-12-13 1985-06-18 Fuchs Jr Francis J Methods of and apparatus for controlling the gap between a mandrel and die during extrusion
JPH02235515A (ja) * 1989-03-06 1990-09-18 Sumitomo Electric Ind Ltd 回転ホイール型押出機における線材の供給法
GB8915769D0 (en) 1989-07-10 1989-08-31 Bwe Ltd Continuous extrusion apparatus
IT1290932B1 (it) 1997-02-14 1998-12-14 Voest Alpine Ind Anlagen Procedimento e dispositivo per impedire il contatto di ossigeno con una massa metallica fusa.
US6011376A (en) * 1998-03-13 2000-01-04 Cincinnati Milacron Inc. Method and apparatus for injection molding machine control
KR100862792B1 (ko) 2002-08-30 2008-10-13 주식회사 포스코 쌍롤형 박판주조기의 고온산화 방지장치 및 방법
GB0304114D0 (en) 2003-02-22 2003-03-26 Bwe Ltd Continuous extrusion apparatus
DE102007033205A1 (de) 2006-08-03 2008-02-07 Sieber Forming Solutions Gmbh Verfahren und Formwerkzeug zur Herstellung von metallischen Werkstücken durch Kalt- oder Halbwarmumformen
CA2829391A1 (fr) 2011-03-10 2012-09-13 Robert Simon Wilson Extrusion de metaux non ferreux formables a temperature elevee
ITMI20121688A1 (it) 2012-10-09 2014-04-10 Bruno Presezzi Spa Dispositivo di iniezione, particolarmente per procedimenti di estrusione di alluminio.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241660A (en) * 1990-03-24 1991-09-11 Atomic Energy Authority Uk Improvements in extrusion
US5782120A (en) * 1993-12-21 1998-07-21 Holton Machinery Ltd. Continuous extrusion
WO1996002335A1 (fr) * 1994-07-15 1996-02-01 Bwe Limited Dispositif d'extrusion continue
GB2310627A (en) * 1996-03-01 1997-09-03 Outokumpu Copper Oy Method for the continuous extrusion of metals
JPH10166035A (ja) * 1996-12-11 1998-06-23 Hitachi Cable Ltd 金属材の製造方法及び装置
WO2000029141A1 (fr) * 1998-11-16 2000-05-25 Holton Machinery Extrusion en continue a positionnement dynamique du sabot
GB2386334A (en) * 2002-02-14 2003-09-17 Holton Machinery Ltd Continuous extrusion using dynamic shoe positioning
US20150151343A1 (en) * 2012-07-30 2015-06-04 Meltech Cre Limited Continuous extrusion apparatus
WO2015070274A2 (fr) 2013-11-18 2015-05-21 Asmag-Holding Gmbh Unité d'outil, extrudeuse et procédé de remplacement d'une roue à friction

Also Published As

Publication number Publication date
US20220324004A1 (en) 2022-10-13
EP3912742A2 (fr) 2021-11-24
EP4169635B1 (fr) 2024-09-04
PL3912742T3 (pl) 2024-01-29
AT520033A1 (de) 2018-12-15
EP3912742B1 (fr) 2023-07-26
WO2018218270A3 (fr) 2019-03-07
EP4169635A1 (fr) 2023-04-26
EP3912742A3 (fr) 2022-03-02
US20200130036A1 (en) 2020-04-30
EP4151327B1 (fr) 2024-09-04
AT520033B1 (de) 2022-01-15
US11446721B2 (en) 2022-09-20
WO2018218270A2 (fr) 2018-12-06
US20220324005A1 (en) 2022-10-13
EP3630383A2 (fr) 2020-04-08
US20220324006A1 (en) 2022-10-13
PL3630383T3 (pl) 2022-03-07
US11794229B2 (en) 2023-10-24
US11679427B2 (en) 2023-06-20
EP3630383B1 (fr) 2021-07-21

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