EP3632600B1 - Installation de séparation de plaques - Google Patents

Installation de séparation de plaques Download PDF

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Publication number
EP3632600B1
EP3632600B1 EP18198836.1A EP18198836A EP3632600B1 EP 3632600 B1 EP3632600 B1 EP 3632600B1 EP 18198836 A EP18198836 A EP 18198836A EP 3632600 B1 EP3632600 B1 EP 3632600B1
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EP
European Patent Office
Prior art keywords
pressure beam
workpiece
electric motor
pressure
support table
Prior art date
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Application number
EP18198836.1A
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German (de)
English (en)
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EP3632600A1 (fr
EP3632600C0 (fr
Inventor
Stefan Zoier
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.)
IMA Schelling Austria GmbH
Original Assignee
IMA Schelling Austria GmbH
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Application filed by IMA Schelling Austria GmbH filed Critical IMA Schelling Austria GmbH
Priority to EP23184957.1A priority Critical patent/EP4245448A3/fr
Priority to EP18198836.1A priority patent/EP3632600B1/fr
Publication of EP3632600A1 publication Critical patent/EP3632600A1/fr
Application granted granted Critical
Publication of EP3632600C0 publication Critical patent/EP3632600C0/fr
Publication of EP3632600B1 publication Critical patent/EP3632600B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
    • B27B5/06—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels

Definitions

  • the present invention relates to a panel dividing system for sawing up at least one workpiece consisting of at least one individual panel or at least one stack of panels, according to the preamble of claim 1 and a method for operating such a panel dividing system according to claims 17-20.
  • a panel dividing plant is from the document IT BO20 090 169 A1 known.
  • adjustment drives for example in the form of pressurized cylinders, can be arranged on the pressure beam towers for the adjustment of the pressure beam.
  • spindle drives operated by an electric motor, linear motor drives, etc. for the adjustment of the pressure beam are also mentioned as alternatives.
  • panel dividing systems are safety-relevant systems in which the operating personnel must be adequately protected from possible sources of injury, including the pressure beam.
  • the object of the invention is to improve a panel dividing system of the type mentioned above in such a way that the movement when the pressure beam is moved along the pressure beam uprights and the pressing of the workpiece in the area of the saw line against the workpiece support table can be controlled and/or regulated as well and finely tuned as possible .
  • the panel dividing system has a parking brake for locking the pressure bar in its respective current position relative to the workpiece support table, with the parking brake at least between a locking state, in which the pressure bar is locked by the parking brake in its respective current position relative to the workpiece support table, and a release state , in which the pressure bar can be switched from the parking brake to the process along the pressure bar uprights relative to the workpiece support table and to pressing the workpiece in the area of the sawing line to the workpiece support table, preferably completely.
  • the panel dividing system has an additional safety feature, with which the pressure bar can be securely held in its current position whenever the electric motor is in the inactive state, so that the panel dividing system ensures that uncontrolled Movements of the pressure bar and, in particular, uncontrolled lowering of the pressure bar onto the workpiece support table are prevented.
  • the parking brake provided according to the invention can a self-locking design of the transmission mechanism arranged and/or acting between the electric motor and the pressure bar for moving and guiding along the pressure bar uprights and for pressing the pressure bar can be dispensed with.
  • the mechanical resistance to be overcome by means of the electric motor when moving and pressing the pressure beam is much lower than in the prior art, so that the movement of the pressure beam in the direction of the workpiece support table and in the direction away from the workpiece support table and also the pressing of the workpiece in the area of the sawing line on the workpiece support table by means of the pressure bar can be regulated and/or controlled much more finely and precisely than in the prior art.
  • the parking brake can be brought into the locked state in any instantaneous position of the pressure beam relative to the workpiece support table, so that the pressure beam can be locked in any instantaneous position by means of the parking brake.
  • the parking brake releases the pressure bar, preferably completely.
  • fully releasing means that the parking brake does not exert any braking effect on the pressure beam in the released state.
  • variants can of course also be provided in which a certain residual braking effect of the parking brake is present in the released state, but the pressure bar can be moved or moved along the pressure bar uprights relative to the workpiece support table despite this residual braking effect.
  • the instantaneous position is understood to mean the respective position of the pressure beam relative to the workpiece support table, which this currently occupies. When moving along the pressure bar uprights, the pressure bar changes its current position.
  • the electric motor or motors is or are the only motor drives for moving the pressure beam along the pressure beam uprights and for pressing the workpieces in the area of the sawing line are on the workpiece support table.
  • the pressure bar is purely electrically actuated, ie no additional pneumatic or other motor drives are present as in the prior art mentioned at the outset.
  • a motor drive or in other words motor is a component that generates a movement itself. This is to be distinguished from the transmission mechanism, which is used exclusively to transmit, translate and the like a movement already generated by the motor drive.
  • the parking brake is an automatically closing parking brake.
  • this is a parking brake which, in the inactive state of the electric motor, assumes the locking state by force and preferably by itself.
  • the non-active state of the electric motor could also be referred to as the passive state of the electric motor. This is to be understood as meaning all the states in which the electric motor does not exert any forces on the pressure beam, or exerts insufficient forces at the moment to hold the pressure beam in its current position or to move it in a controlled manner.
  • the inactive state can be the switched-off state of the electric motor, a defect in the electric motor, a currentless and/or voltage-free state of the electric motor or the like.
  • Suitable parking brakes and in particular automatically closing parking brakes are known per se in the prior art. They are also often referred to as safety brakes. Generally speaking, they have The task of braking moving masses or loads from the movement if necessary and then holding them securely at a standstill.
  • the parking brake preferably obtains the braking force from a prestressed element, such as a spring or another hydraulic or pneumatic pressure accumulator . In the de-energized state, they are conveniently always closed.
  • Corresponding automatically closing parking brakes are used in the prior art, for example, to implement emergency or power failure scenarios.
  • the parking brake and the electric motor can be separate components.
  • the parking brake can be present as an additional component, so to speak, in addition to the electric motor.
  • particularly preferred variants of the invention provide that the parking brake is integrated into the electric motor. Provision can be made for the parking brake to act on an output shaft of the electric motor at least in the locked state.
  • the output shaft is the moving component of the electric motor, preferably rotating about its longitudinal axis, to which the transmission mechanism is connected.
  • the output shaft is thus the component of the electric motor with which the movement generated by the electric motor, in particular rotary movement, is transmitted to the transmission mechanism.
  • Preferred variants of panel dividing systems according to the invention provide that the panel dividing system has a position determination device for determining the respective instantaneous position of the pressure beam relative to the workpiece support table.
  • the instantaneous position ie the instantaneous position of the pressure bar, can be advantageously determined at any time during the operation of the panel dividing system.
  • the position determination device is integrated into the electric motor.
  • it is particularly favorable if the movement of a drive shaft or the drive shaft of the electric motor is measured by the position determination device.
  • Electric motors in which such position determination devices are integrated are known in the prior art, as are electric motors in which both a parking brake and a position determination device are integrated.
  • Panel dividing systems according to the invention can be designed in such a way that they work fully automatically. In these cases, the workpieces are moved and positioned fully automatically by known feed devices, removal devices and the like, so that no operating personnel are required to manipulate the workpiece in the area of the panel dividing system. In panel dividing systems according to the invention, however, it can also be provided that the workpieces are at least partly manually fed to the saw line or fed back to it or removed from it by operating personnel. With such panel dividing systems, care must be taken to ensure that the operating personnel are not injured by the pressure beam and/or the saw.
  • preferred variants of the panel dividing system provide that the pressure bar can be moved into a safety position provided for the manipulation of the workpiece by operating personnel and at a distance from the workpiece support table, and the panel dividing system has a safety position sensor Determining whether the print bar is in the safety position. Provision can then be made for the operator to manipulate the workpiece only when the pressure beam is in its safety position, which can be monitored by the safety position sensor.
  • the panel dividing system has at least one intervention monitoring device for detecting manual intervention by operating personnel in an area between the pressure beam and the workpiece support table .
  • intervention monitoring devices are known per se in the prior art for panel dividing systems.
  • the intervention monitoring device can be, for example, a pressure sensor strip arranged on the pressure bar on a side of the pressure bar that faces the workpiece support table.
  • Other suitable intervention monitoring devices are, for example, slatted curtains known per se, which the operating personnel have to open in a targeted manner in order to get into the area of the pressure bar and the sawing line.
  • Another intervention monitoring device can also be a safety strip, for example.
  • the pressure sensor bar and the safety bar are advantageously designed in such a way that they recognize an arm or a hand of the operating personnel which is or are inadvertently arranged between the pressure bar and the workpiece or between the pressure bar and the workpiece support table. While the pressure sensor strip is conveniently integrated directly into the surface of the pressure beam, with which the pressure beam presses on the workpiece or the workpiece support table, the slatted curtain and/or the safety strip are advantageously arranged at a distance from the pressure beam on the side of the pressure beam and thus also on the sawing line. from which the operating personnel access when manipulating the workpieces.
  • This area is seen in a main transport direction, in which the workpieces are fed, for example by a known feed device of the panel dividing plant of the saw line, behind the saw line.
  • the safety bar can be attached directly to the pressure bar and from this in the specified direction accordingly stand out
  • the intervention monitoring devices mentioned can occur individually or in combination.
  • other intervention monitoring devices such as emergency switches and the like, can also be provided individually or in combination.
  • the parking brake provided according to the invention makes it possible for the transmission mechanism between the electric motor and the pressure bar to be designed with as little loss as possible and, above all, not to be self-locking, so that the pressure bar can move and press against the workpiece to be sawed and/or the workpiece support table as much as possible can be precisely controlled or regulated.
  • the pressure beam is lowered by gravity from a position at a distance from the workpiece support table in the direction of the workpiece support table when the electric motor is in the inactive state and the parking brake is in the released state.
  • Particularly preferred variants of panel dividing systems according to the invention provide, in the sense of the most precise control or regulation possible, that between the pressure beam and the electric motor, preferably between the pressure beam and one or the output shaft of the electric motor, a transmission mechanism of the panel dividing system for moving and guiding the pressure beam along the pressure bar stand and is arranged and/or acts to press the workpiece in the area of the saw line against the workpiece support table and the transmission mechanism has an overall efficiency of at least 80%, preferably at least 90%, when the parking brake is in the released state.
  • the transmission mechanism includes all the components that are used to transmit the movement generated by the electric motor and to convert this movement into the traversing movement of the pressure beam and the pressing of the workpiece in the area of the saw line against the workpiece support table.
  • the Transmission mechanism all the components, in particular moving ones, which are provided for converting the movement generated by the electric motor into a corresponding movement or pressing of the pressure bar.
  • the overall efficiency of the transmission mechanism results from all the efficiencies of the components that make up the transmission mechanism, referred to below as partial efficiencies.
  • these partial efficiencies for the individual components are already specified by the manufacturer or can be found in the specialist literature, so that the overall efficiency of the transmission mechanism, as is known, is calculated from the product of the partial efficiencies of all components of the transmission mechanism.
  • the overall efficiency of the transmission mechanism is always smaller than the individual partial efficiencies of the individual components of the transmission mechanism. Since the electric motor and its drive shaft, if present, are not part of the transmission mechanism, the efficiency of the electric motor and also of the engine controller associated with it are not taken into account when calculating the overall efficiency of the transmission mechanism.
  • the overall efficiency of the transmission mechanism can also be determined by measurement.
  • the pressure bar can be made to perform a lifting and lowering movement at a slow, constant speed of, for example, 10 mm/s (millimeters per second) and the effective torque transmitted by the electric motor, in particular its drive shaft, can be recorded in each case.
  • Commercially available regulating and control devices for electric motors make this effective torque of the electric motor or the drive shaft available as standard, so that the corresponding values of the effective torques can be easily read off or read out.
  • measuring devices known per se to determine this active moment during the named lifting and lowering movement.
  • the lifting movement is a movement of the pressure bar along the pressure bar uprights in the forward direction Workpiece support table gone.
  • This lowering movement is a movement of the pressure beam along the pressure beam uprights in the direction of the workpiece support table.
  • Said transmission mechanism can have different components in different numbers and positions relative to one another.
  • the transmission mechanism it is favorable for the transmission mechanism to have at least one drive gear for converting the movement generated by the electric motor into a movement of the pressure beam along the pressure beam uprights and/or to press the workpiece in the area of the saw line against the workpiece support table and at least one guide for guiding the pressure beam along the pressure bar stand includes.
  • the drive gear converts the movement generated by the electric motor into a corresponding movement of the pressure bar along the pressure stand and/or into a pressing of the workpiece in the area of the sawing line against the workpiece support table.
  • the drive gear can, for example, have or consist of a rack and pinion gear or a spindle gear or other suitable types of drive.
  • the transmission mechanism also includes at least one guide with which the pressure beam is guided on the pressure beam uprights during its movement along the pressure beam uprights and when the workpiece is pressed in the area of the saw line on the workpiece support table.
  • the guide could also be referred to as a guide device.
  • the transmission mechanism additionally has a step-up and/or step-down gear for stepping up and/or stepping down the movement generated by the electric motor.
  • This step-up and/or step-down gear can be used, for example, so that the electric motor can work in the optimum speed range on the one hand and the speeds and forces required to move or press the pressure bar can be achieved on the other.
  • the step-up and/or step-down gear is advantageously arranged, if necessary, between the electric motor and the drive gear.
  • preferred variants of the invention provide that the electric motor or each electric motor is arranged in the area of one of the pressure bar uprights, preferably in one of the pressure bar uprights.
  • the transmission mechanism can be designed very efficiently. Provision is particularly preferably made for the electric motor to be arranged in one of the pressure beam uprights or, in other words, in a cavity in one of the pressure beam uprights.
  • the electric motor can, for example, partially protrude from the pressure beam post when the pressure beam has been moved to the position furthest away from the workpiece support table.
  • the pressure bar or each pressure bar is driven by exactly one electric motor as the sole motor drive unit.
  • the electric motor is then only located in one of the pressure bar uprights assigned to the pressure bar for each pressure bar.
  • this embodiment appears to be disadvantageous, since the person skilled in the art initially fears an asymmetric pressure distribution when the pressure bar is pressed onto the workpiece. This apparent
  • the disadvantage can be compensated for by a corresponding rigidity of the pressure bar and the drive gear assigned to it.
  • a major advantage of this one-sided arrangement of the electric motor is that a particularly favorable pressure distribution results when the pressure beam is only intended to press narrow workpieces onto the workpiece support table on one side, namely on the side of the electric motor.
  • An angle stop of the panel dividing system for aligning the workpiece on the workpiece support table is advantageously arranged on this pressure beam upright, in its area or in which the electric motor is located, or at least between this pressure beam upright and the saw line.
  • the workpiece can then be placed against the angle stop during the sawing process, so that the above-mentioned advantage of the one-sided arrangement of the electric motor in the area or in only one of the pressure bar uprights can fully develop.
  • the electric motor or any electric motor is favorable arranged outside the pressure bar. This creates space for devices arranged and/or movable along the pressure beam, such as an alignment carriage and/or components of an extraction system for dust and chips.
  • the electric motor has a motor housing and the motor housing is fixed to the pressure beam in such a way that the electric motor is moved along with the pressure beam when the pressure beam is moved along the pressure beam uprights.
  • the motor housing of the electric motor can, for example, be fixed to the pressure bar via an attachment housing. Components of the transmission mechanism, for example, can then be accommodated in the add-on housing.
  • Preferred embodiments of the invention provide that the electric motor drives a transmission shaft of the panel dividing system running along the pressure beam from one of the pressure beam uprights to the other of the pressure beam uprights.
  • This transmission shaft can be seen as part of the transmission mechanism.
  • the transmission mechanism can then provide a drive gear, such as a rack and pinion gear and/or a spindle gear, on each of the two pressure beam uprights assigned to a single pressure beam.
  • These two drive gears can be mechanically coupled to one another via the transmission shaft.
  • the transmission shaft can be used, for example, to transmit the movement generated by a single electric motor, which is arranged in the area or in only one of the pressure beam uprights, via the transmission mechanism with the transmission shaft to both drive gears arranged on one of the pressure beam uprights.
  • a uniform movement of the pressure bar relative to both pressure bar uprights is also ensured via the transmission shaft.
  • a corresponding transmission shaft can also be used if two electric motors are assigned to the pressure bar, which are each arranged in the area or in one of the pressure bar uprights.
  • the transmission shaft can be used as a mechanical coupling to standardize the movement, i.e. for synchronism of the uprights on one of the pressure beams arranged drive gear are used.
  • a method for operating a panel dividing system preferably provides that the parking brake is forcibly brought into the locked state when the electric motor is not active. This reliably prevents uncontrolled movement of the pressure beam whenever the electric motor is in the inactive state, e.g. switched off, defective, de-energized, not energized or the like. This prevents the pressure beam from moving unintentionally, in particular from falling down, so that the panel dividing system itself is protected from damage and the operating personnel who may be present are protected from injury.
  • a method for operating a panel dividing system can also provide that the pressure beam is moved into a safety position provided for the manipulation of the workpiece by operating personnel and at a distance from the workpiece support table and is held there by means of the electric motor or the parking brake if at least one intervention monitoring device requires manual intervention by the operating personnel is detected in the area between the pressure beam and the workpiece support table.
  • the safety of the operating personnel is paramount here. In this procedure, it is provided that the operating personnel can or should only reach into the area between the pressure beam and the workpiece support table when the pressure beam has moved into the safety position at a distance from the workpiece support table.
  • the intervention monitoring devices already mentioned at the outset can be implemented individually or in combination as part of the panel dividing system.
  • a safety position sensor already mentioned above can be used to monitor that the print bar is in the safety position. In principle, this can also be monitored via the position determination device already mentioned at the outset. But the safety position sensor is conveniently as additional safety feature provided, which monitors independently of the position determination device that the pressure bar is in the safety position.
  • the two methods mentioned can also be combined with one another.
  • the pressure bar is first moved into the safety position in order to then continue operation of the panel dividing system from the safety position start again in a controlled manner.
  • the safety position can also be approached by the pressure beam if, for example, a fault causes a sawing process to be aborted.
  • a method for operating a panel dividing system according to the invention can provide that when a sawing process is aborted, the saw is brought into a safety position and then the pressure beam is moved into the safety position or a safety position provided for the manipulation of the workpiece by operating personnel and at a distance from the workpiece support table and there by means of of the electric motor or the parking brake.
  • a secure position of the saw can be achieved, for example, by lowering the saw to an area below the workpiece support table.
  • Another safety position can be achieved by moving the saw sideways along the sawing line out of the area of the pressure beam.
  • the workpiece When positioning the workpiece, it is preferably provided that the workpiece is placed against or against the angle stop.
  • the positioning can be done mechanically, e.g. by means of known feed devices and/or aligning carriages of the panel dividing system. However, the positioning of the workpiece can also be carried out by manual manipulation by the operating personnel.
  • both a constant setpoint contact pressure and a setpoint contact pressure profile can be provided.
  • the target contact pressure varies in a predetermined manner during the cutting of the workpiece.
  • different target contact pressures can be provided.
  • a control of the actual contact pressure, ie the actual contact pressure, to the desired contact pressure or the course of the desired contact pressure is advantageously provided.
  • the instantaneous power consumption and/or the instantaneous active torque of the electric motor driving the pressure bar or of the electric motors driving the pressure bar can be used as a controlled variable.
  • the respective actual contact pressure can also be measured as a controlled variable by means of a corresponding pressure sensor.
  • the pressure sensor can be, for example, the pressure sensor bar already explained at the outset, which is arranged on the pressure bar on a side of the pressure bar that faces the workpiece support table. It is preferably provided that in method step d) the predefinable setpoint contact pressure or setpoint contact pressure profile is predefined as a function of the workpiece and/or of a position of the saw along the sawing line. It is thus possible, for example, to take into account the material and/or the geometric dimensions of the workpiece and the position of the workpiece along the sawing line when determining the desired contact pressure or the desired contact pressure profile.
  • the target contact pressure can also provide different target contact pressures for different positions of the saw along the sawing line in the sense of a target contact pressure profile.
  • target contact pressure when the saw enters and/or exits the workpiece to be provided as if the saw is already in the workpiece and saws the workpiece further.
  • the target contact pressure or target contact pressure profile can also be carried out as a function of the cutting sequence and/or the required cutting quality.
  • the contact pressure is advantageously regulated during the entire cutting process by means of corresponding presettings of target contact pressures and target contact pressure profiles.
  • a speed at which the pressure beam is lowered in the direction of the workpiece is specified as a function of the workpiece and/or as a function of an operating state or at least one parameter of the panel dividing system and is preferably also monitored.
  • the speed can therefore be regulated.
  • the actual speed can be determined, for example, via the position determination device already mentioned at the outset and a corresponding time measurement.
  • the target speeds can be determined, for example, as a function of parameters of the workpiece such as its material and size or from operating states and/or parameters of the panel dividing system such as the required cutting quality, the cutting sequence, etc.
  • the impact of the pressure bar on the workpiece can be detected by measuring an operating parameter of the electric motor or by means of a separate impact sensor.
  • the operating parameters of the electric motor are, for example, its power consumption, its effective torque or the like.
  • the pressure sensor strip already mentioned above can be used on the side of the pressure beam facing the workpiece support table.
  • a position of the pressure bar that is known from a previous sawing process can be used as the predefinable position before the pressure bar hits the workpiece.
  • the position at which the pressure bar stops can be specified so that the pressure bar is stopped accordingly shortly or immediately before the pressure bar hits the workpiece.
  • the predeterminable position before the pressure bar hits the workpiece is advantageously at most 5 mm away from the side of the workpiece facing away from the workpiece support table.
  • the impact on the workpiece preferably takes place with as little force impulse as possible or little force acting on the workpiece.
  • the size of the force impulse or force action can be controlled as a function of parameters of the workpiece such as its material and/or size and/or from operating states and/or parameters of the panel dividing system, such as the required cutting quality, the cutting sequence, etc.
  • the first exemplary embodiment of a panel dividing system 1 shows a workpiece support table 3 with a workpiece 2 arranged thereon by way of example 1
  • Workpiece 2 shown as an example is a plurality of adjacent stacks of plate strips. Of course, stacks of plates, individual plates, etc. can also be involved.
  • the respective workpiece 2 is positioned in the area of the saw line 9 on the support plane 25 of the workpiece support table 3 such that the workpiece 2 can be moved in a sawing process using the saw 4, which can be moved along the saw line 9 with the saw carriage 33 and is designed here as a circular saw blade is, can be sawn in the desired manner.
  • a resting of the workpiece 2 on the workpiece support table 3 means that the workpiece 2 rests on the support plane 25 of the workpiece support table 3.
  • the saw carriage 33 an additional scoring saw 34, also designed here as a circular saw blade, is provided. This is known per se, but does not necessarily have to be implemented in this way.
  • the saw 4 like the scoring saw 34, can be lowered into the saw carriage 33 to below the support plane 25 in a manner known per se. In this position, the saw 4 and the scoring saw 34 are lowered to such an extent that they do not project beyond the workpiece support table 3 or its support plane 25 .
  • Another securing position would consist in moving the saw carriage 33 with the saw 4 and the possibly existing scorer saw 34 so far along the sawing line 9 that it comes outside the area between the pressure beam uprights 6 and 7 .
  • the positioning of the respective workpiece 2, which is a stack of plates in the example shown here, can be carried out mechanically, for example with the 2 indicated feed device 35 known per se.
  • the feed device 35 grips the workpiece 2 to be sawn with its clamps 36 and transports and positions the workpiece 2 on the workpiece support table 3 relative to the sawing line 9 in the desired manner, so that the cut by means of the saw 4 in the desired position can be done through the workpiece 2.
  • further transport and rotating devices known per se can be provided in order to transport and position the workpiece 2 in a manner known per se to the sawing line 9 and away from it.
  • the main transport direction 64 is generally that feed direction 37 with which the workpiece 2 to be sawn is transported from the feed device 35 to the sawing line 9, in particular before the first sawing process is carried out.
  • the operating personnel 61 Seen in the main transport direction 64, the operating personnel 61 is usually on the side behind the sawing line 9, i.e. in 2 on the opposite side of the feed device 35 of the saw line 9. From there, the operating personnel 61 rotate workpieces 2 in a manner known per se, align them, feed them back to the sawing line 9 or manually manipulate them in some other way.
  • panel dividing systems 1 according to the invention can also be designed as fully automatic systems in which the operating personnel 61 is no longer required to manually manipulate the workpieces 2 and, for safety reasons, generally no longer has access to the sawing line 9.
  • the angle stop 22, which is known per se, is located on one of the pressure beam uprights, here on the pressure beam upright 6.
  • the workpiece 2 to be sawn up can be placed on this and thus aligned.
  • the two pressure bar uprights 6 and 7 are connected to one another by means of a guide beam 28 .
  • an alignment carriage 29 is arranged on this so that it can be displaced along the pressure beam 5 .
  • Such alignment carriages 29 and their drives are known per se. With their aligning cams 30, they can move the workpiece 2 to be sawn in a direction parallel to the sawing line 9 and in particular towards the angle stop 22 and align it with it.
  • the pressure beam 5 is mounted in a manner known per se on the pressure beam uprights 6 and 7 so that it can be moved in the direction 10 towards the workpiece support table 3 and thus towards the workpiece 2 and in the direction 11 away from the workpiece support table 3 and can thus, in the correspondingly lowered state, lift the workpiece 2 press onto or against the workpiece support table 3 during the sawing process.
  • the pressure bar 5 is guided by means of a guide 20 on the pressure bar uprights 6 and 7 in order to be able to carry out the movement in directions 10 and 11.
  • the electric motor 8 is provided as a motor drive for executing the movement of the pressure beam 5 along the pressure beam uprights 6 and 7 and for pressing the workpiece 2 in the area of the saw line 9 against the workpiece support table 3 by means of the pressure beam 5 .
  • this is the only motor drive with which the pressure beam 5 is moved accordingly in the directions 10 and 11 and pressed against the workpiece 2 or the workpiece support table 3 .
  • no other motor drives are provided to move or press the pressure bar 5.
  • the reference number 31 designates the motor controller, which is known per se and controls the electric motor 8 .
  • the area B off 1 will now be used in the following based on the Figures 3 to 5 explained in more detail, with in the Figures 3 to 5 the workpiece 2 is not shown.
  • the electric motor 8 in this exemplary embodiment is arranged in the area of the pressure beam upright 6 , here even in the pressure beam upright 6 or in a cavity of the pressure beam upright 6 . He can, as in the Figures 3 to 5 to see, certainly, especially in the further raised position of the pressure bar 5, protrude a bit far up from the pressure bar post 6.
  • the motor housing 23 of the electric motor 8 is fixed to the pressure beam 5 in such a way that the electric motor 8 is moved along with the pressure beam 5 when the pressure beam 5 is moved along the pressure beam uprights 6 and 7, i.e. in directions 10 and 11.
  • the motor housing 23 is fixed to the pressure bar 5 by means of the add-on housing 43 tied together.
  • the attachment housing 43 is led through an opening 50 of the pressure beam upright 6 in order to be able to connect the pressure beam 5 arranged outside of the pressure beam upright 6 to the electric motor 8 arranged inside the pressure beam upright 6 .
  • the guide 20 is clearly visible, with which the pressure beam 5 is mounted on the pressure beam upright 6 so that it can be moved in the directions 10 and 11 .
  • the guide 20 is composed of the guide carriage 39 fixed to the pressure beam 5 and the guide rail 40 fixed to the pressure beam upright 6 .
  • the guide carriages 39 are displaceably guided on the guide rail 40 so that the pressure beam 5 can be guided in the directions 10 and 11 relative to the pressure beam post 6 .
  • Corresponding guides 20 could of course also be designed differently than shown here. Numerous possibilities for this are known in the prior art.
  • the guide 20, as shown here is favorably a linear guide.
  • the angular stop 22 Located on the pressure bar stander 6, as in the Figures 3 and 4
  • the angular stop 22 Located on the pressure bar stander 6, as in the Figures 3 and 4
  • the angular stop 22 Located on the pressure bar stander 6, as in the Figures 3 and 4
  • the angular stop 22 Located on the pressure bar stander 6, as in the Figures 3 and 4
  • a trained in the form of a bevel gear transmission and / or reduction gear 21 is provided, which is arranged in the attachment housing 43 and in addition to Angular translation of the rotational movement of the output shaft 13 converts the optimum rotational speed of the output shaft 13 for the electric motor 8 into the speed required for the movement and the pressing process by means of the pressure bar 5 .
  • On the output side of the step-up and/or step-down gear 21 follows the drive gear, which is designed here as a rack and pinion gear 18 .
  • This rack and pinion gear 18 converts the rotary movement generated by the electric motor 8 into a movement of the pressure bar 5 in the respective directions 10 and 11 .
  • the rack and pinion gear 18 in the exemplary embodiment shown has the gear wheel 42 which is driven by the electric motor 8 via the step-up and/or reduction gear 21 and which engages in the toothed rack 41 of the rack and pinion gear 18 .
  • the toothed rack 41 is fastened in a fixed or stationary manner to the pressure beam upright 6 so that the pressure beam 5 together with the attachment housing and the electric motor 8 can be moved in the directions 10 and 11 when the gear wheel 42 is turned accordingly. In this way, a corresponding pressing of the workpiece 2 onto the workpiece support table 3 by means of the pressure bar 5 can also be realized.
  • the electric motor 8 also drives a transmission shaft 24 of the panel dividing system 1 running along the pressure beam 5 from one of the pressure beam uprights 6 to the other of the pressure beam uprights 7 .
  • a transmission shaft 24 of the panel dividing system 1 running along the pressure beam 5 from one of the pressure beam uprights 6 to the other of the pressure beam uprights 7 .
  • the transmission shaft 24 can be supported by means of a bearing 27 on the pressure beam 5 .
  • a guide 20 for the pressure bar 5 along the pressure bar post 7 and also a drive gear in the form of a rack and pinion gear 18 are also provided on the pressure bar post 7 .
  • the rack and pinion gear 18 and the guide 20 on the pressure beam upright 7 are designed like the rack and pinion gear 18 and the guide 20 on the pressure beam upright 6 in the same way as in other preferred embodiments.
  • the gear 42 of the rack and pinion gear 18 on the pressure bar upright 7 is by means of Transmission shaft 24 rotated in the same way as the gear 42 of the rack and pinion gear 18 on the pressure beam upright 6. As a result, the movement generated by the electric motor 8 is transmitted to both pressure beam uprights 6 and 7.
  • the pressure bar 5 can be both guided and driven particularly well on both pressure bar uprights 6 and 7 by means of a single electric motor 8 .
  • the between the pressure bar 5 and the electric motor 8, here in particular between the pressure bar 5 and the output shaft 13 of the electric motor 8 arranged and acting transmission mechanism includes in this embodiment, as particularly well in the 1 and 5 can be seen, i.e. the step-up and/or step-down gear 21, the rack and pinion gears 18 and guides 20 arranged on the respective pressure beam uprights 6 and 7 and the transmission shaft 24.
  • this transmission mechanism is not self-locking in preferred embodiments of the invention , so that the pressure bar 5 is lowered by gravity from a position at a distance from the workpiece support table 3 in direction 10 towards the workpiece support table 3 when the electric motor 8 is in the inactive state and the parking brake 12 explained below is in the released state.
  • the overall efficiency of the transmission mechanism explained at the outset which is preferably at least 80%, preferably at least 90%, when the parking brake 12 is in the released state, results in this exemplary embodiment according to FIG 1 and 5 thus from the product of the partial efficiencies of the components of the transmission mechanism, i.e.
  • step-up and/or step-down gear 21 the two rack and pinion gears 18, the two guides 20 and the transmission shaft 24, in particular also their bearing in the bearing 27.
  • a parking brake 12 for locking the pressure bar 5 in its current position relative to the workpiece support table 3 is provided.
  • This parking brake 12 is at least between a locking state, in which the pressure bar 5 is locked by the parking brake 12 in its current position relative to the workpiece, and a release state, in which the pressure bar 5 can be moved by the parking brake 12 along the pressure bar uprights 6 and 7 relative to the workpiece support table 3 and to the Pressing the workpiece 2 in the area of the saw line 9 on the workpiece support table is released, switchable.
  • this involves an automatically closing parking brake 12 which is intended to assume the locked state when the electric motor 8 is in the inactive state. In this first embodiment, as in 1 and 5 to see this parking brake 12 integrated into the electric motor 8.
  • the parking brake 12 acts on the drive shaft 13 of the electric motor 8 with brake shoes or the like that are known per se but are not shown in detail here.
  • the position determination device 14 is also integrated into the electric motor 8 in this exemplary embodiment. In the variant shown here, this determines the current position of the pressure bar 5 relative to the workpiece support table 3 by measuring the movement of the drive shaft 13 of the electric motor 8, from which the current position of the pressure bar 5 can be derived.
  • Electric motors 8 with corresponding parking brakes 12 and position determination devices 14 and a corresponding output shaft 13 can be purchased commercially and are therefore state of the art in and of themselves.
  • an elastic support 26 is advantageously arranged on the pressure beam 5 on the side of the pressure beam 5 facing in the workpiece support table 3 , as is also realized here.
  • This can be designed as a pressure sensor strip 17 in a manner known per se. It can serve as an intervention monitoring device 16 in order to detect whether operating personnel 61 accidentally still have their hand or arm in the area between the pressure beam 5 and the workpiece 2 or the workpiece support table 3 . This will be explained later with the help of 22 explained in more detail.
  • the pressure sensor bar 17 can, as already explained, but also be used as an impact sensor with which it is recognized that the pressure bar 5 hit the workpiece 2 when it was lowered.
  • the one-sided provision of the single electric motor 8 in the area of only one of the pressure bar uprights 6 and in particular in or in the area of the pressure bar upright 6 with the angle stop 22 may initially appear to the person skilled in the art as statically unfavorable.
  • statically unfavorable in particular in situations such as those in 1 are shown, the advantage that a relatively narrow workpiece 2, which extends only over a portion of the sawing line 9 and rests against the angle stop 22, can be optimally clamped.
  • the pressure bar 5 and the corresponding parts of the transmission mechanism can be made correspondingly stiff.
  • the electric motor 8 is designed as a so-called torque motor.
  • This exemplary embodiment shows that, in principle, a step-up and/or step-down gear 21 can also be dispensed with, so that the output shaft 13 of the electric motor 8, here the electric torque motor 8, directly to the drive gear, here in the form of a rack and pinion gear 18 on the pressure beam upright 6 and can act via the transmission shaft 24 on the rack and pinion gear 18 arranged opposite on the pressure beam upright 7 .
  • the parking brake 12 and/or also the position determining device 14 can be integrated into the electric motor 8 .
  • the electric motor 8 is in the form of an electric linear motor with a primary part 44 and a secondary part 45 is executed.
  • the secondary part 45 is in the in 7 shown example fixed to the pressure bar post 6.
  • the primary part 44 of the electric motor 8 designed as a linear motor, which can be moved relative thereto, is fixed in this example on the pressure bar 5 via the attachment housing 43, so that a movement of the primary part 44 along the secondary part 45 forces the gear wheel 42 in the attachment housing 43 to roll along the toothed rack 41 of this Rack and pinion gear 18 causes, whereby this rotational movement via the transmission shaft 24 to a corresponding, as in 1 shown, trained rack and pinion gear 18 is transmitted to the other pressure bar post 7.
  • the parking brake 12 does not necessarily have to be integrated directly into the electric motor 8 .
  • This brake rail 46 is fixed here on the pressure bar post 6 .
  • the parking brake 12 acts on the brake rail 46 in such a way that the pressure bar 5 is locked in its respective instantaneous position relative to the workpiece support table 3 .
  • corresponding parking brakes 12 do not necessarily have to be connected directly to the electric motor 8 either. It could also be provided, for example, to integrate corresponding parking brakes 12 into the guide 20 or to design them as completely separate components.
  • the parking brake 12 is preferably an automatically closing parking brake, which has already been explained at the outset.
  • the position determining device 14 is integrated into the electric motor 8 as a linear measuring device. It is clear that even without integration into the electric motor 8, numerous possibilities are known in the prior art for how corresponding position determination devices 14 can be designed independently of the electric motor 8 in order to measure or to measure the current position of the pressure beam 5 relative to the workpiece support table 3 determine.
  • the parking brake 12 and the position determination device 14 are in turn integrated into the electric motor 8 .
  • the transmission mechanism provides in addition to the rack and pinion gears 18 a spindle gear 19, which in this embodiment according to 8 is formed from a stationary, ie non-rotating, spindle 48 and a spindle nut 47 rotatably mounted thereon.
  • the spindle 48 is non-rotatable and fixed in its position by means of the spindle bearing 49 on the pressure beam post 6 .
  • the spindle nut 47 is connected in a torque-proof manner to a corresponding output shaft 13 of the electric motor 8 that is not explicitly shown here.
  • the spindle 48 is in accordance with the embodiment 8 passed through a central opening in the electric motor 8.
  • the motor housing 23 of the electric motor 8 is in 8 in turn fixed to the pressure beam 5 via an attachment housing 43 .
  • the spindle nut 47 By rotating the spindle nut 47 by means of the electric motor 8, the movements in the directions 10 and 11 of the pressure bar 5 are generated.
  • the rack and pinion gears 18 arranged on the two pressure beam uprights 6 and 7 and the transmission shaft 24 arranged between them serve exclusively to transmit these movements generated by the spindle gear 19 in directions 10 and 11 or to press the pressure beam 5 onto a corresponding workpiece 2 on the Workpiece support table 3.
  • FIG. 9 shows another variant of a transmission mechanism with a spindle gear 19.
  • the motor housing 23 of the electric motor 8 is fixed on or on the pressure beam upright 6.
  • the output shaft 13 drives the spindle 48 , which is rotatably mounted in the spindle bearings 49 , so that it is rotated in the spindle nut 47 fixed in the attachment housing 43 in this variant.
  • the rotary movement of the electric motor 8 thus means that the spindle nut 47 and the attachment housing 43 fixed to the pressure bar 5 and thus the pressure bar 5 can be moved in directions 10 and 11, or the workpiece 2 can be moved by means of the pressure bar 5 onto the Workpiece support table 3 can be pressed.
  • FIG. 10 different cutting situations are shown with the pressure bar 5 according to the first exemplary embodiment.
  • 10 it is a trimming cut in which the pressure beam 5 is only partially supported on the workpiece 2 on one side of the sawing line 9 or the saw 4 .
  • 11 shows the situation in which the pressure bar 5 with its bearing surface facing the workpiece 2, here the elastic bearing 26, rests completely on the workpiece 2 during the sawing process.
  • an exemplary embodiment is shown in a section orthogonal to the sawing line 9, in which, viewed in the main transport direction 64, two individual pressure beams 5 arranged one behind the other are provided. These jointly delimit a suction channel 38, which, as in 1 can be sucked off via the suction connection piece 32 . There is thus a pressure bar 5 in front of and a pressure bar 5 behind the sawing line 9 .
  • Each pressure beam 5 is driven by its own electric motor 8 and its own transmission mechanism.
  • the electric motors 8 and the transmission mechanisms driven by them, ie the drive gears, such as the rack and pinion gears 19 shown here, and the guides 20 can otherwise be designed in an analogous manner to the exemplary embodiments shown up to now.
  • 13 shows a so-called dust cut, in which only very little material is removed on one side of the workpiece 2.
  • one of the pressure bars 5 is pressed onto the workpiece 2, while the second pressure bar 5 is lifted upwards.
  • 14 shows a position of the two pressure beams 5 in which the dust cut is carried out in such a way that no dust and no chips are released to the outside.
  • the second pressure bar 5 not resting on the workpiece 2 is lowered all the way down to the workpiece support table 3, so that all the dust and chips get into the suction channel 38 arranged between the two pressure bars 5 and not to the outside.
  • 15 shows the situation in which both pressure beams 5 rest completely on the workpiece 2.
  • 16 and 17 show the situations with a dust cut on the other side of the workpiece 2.
  • an electric motor 8 is provided in the area or directly in each of the pressure bar uprights 6 and 7 .
  • the pressure beam 5 is therefore driven by two electric motors 8 here.
  • Both electric motors 8 are fixedly connected to the pressure beam 5 via their motor housing 23 and a corresponding attachment housing 43, so that when the pressure beam 5 moves in directions 10 and 11, they move with it.
  • the attachment and the transmission mechanisms of the respective electric motors 8 can each, as based on the Figures 1 to 9 explained, be executed in different variants. In this regard, reference can therefore be made to the above statements.
  • the two electric motors 8 and their transmission mechanisms are positively coupled mechanically via the transmission shaft 24, which leads to a mechanical unification of the movements of the pressure beam 5 relative to the two pressure beam uprights 6 and 7. Otherwise, reference can be made to the description of the design variants mentioned.
  • 19 shows a modification of the variant according to 18 , in which the mechanical coupling by means of the transmission shaft 24 is dispensed with.
  • the standardization of the movement of the electric motors 8 is realized here via a corresponding control or activation of both electric motors 8 via a single motor controller 31 . Otherwise, you can turn to the example using the Figures 1 to 9 explained variants are referred to, which are in 19 can also be applied accordingly.
  • a motor controller 31 is provided for each electric motor 8, with these motor controllers 31 being coupled to one another in terms of signals.
  • an inventive variant of a panel dividing system 1 in which two pressure beams 5 arranged one behind the other in the longitudinal direction of the sawing line 9 are realized over a single sawing line 9 .
  • an additional pressure bar post 51 is fastened or suspended on the guide support 28 .
  • one of the two pressure beams 5 is guided via corresponding guides 20 on the one hand on the pressure beam upright 6 and on the other hand on the pressure beam upright 51 .
  • the other of the pressure beams 5 is guided via corresponding guides 20 on the pressure beam uprights 7 and on the pressure beam uprights 51 .
  • Each of the two pressure beams 5 is driven in each case by its own electric motor 8 and by a single electric motor 8 for moving in the directions 10 and 11 and for pressing the workpiece 2 onto the workpiece support table 3 .
  • the components of the transmission mechanisms arranged on the one hand on the pressure beam upright 6 and on the pressure beam upright 51 and on the other hand on the pressure beam upright 7 and on the pressure beam upright 51, as well as the transmission shafts 24 provided in each case, can, seen in isolation, again as shown in FIG Figures 1 to 9 explained in different variants, executed, so this does not have to be explained again.
  • 21 shows an example of the course of the effective torque M of the electric motor 8 driving the pressure beam 5 as a function of the time t when the pressure beam 5 is lowered onto the workpiece 2 and when the workpiece 2 is then pressed against the workpiece support table 3.
  • the pressure bar 5 is raised at a distance above the workpiece support table 3 by means of the electric motor 8 .
  • the electric motor 8 must hold the weight of the pressure bar 5 with its effective torque in this phase.
  • phase 2 identified by reference number 53, the lowering process begins, in which the pressure bar 5 is lowered in direction 10 towards the workpiece support table 3 or towards the workpiece 2 resting there.
  • phase 3 marked with 54 the lowering acceleration at the beginning of the lowering process can be seen.
  • phase 4 marked 55, the pressure bar 5 is lowered at a constant speed in direction 10 towards the workpiece 2.
  • phase 5 marked 56, the pressure bar 5 hits the workpiece 2, which can be clearly seen in the active torque curve of the electric motor 8 is.
  • phase 6, marked 57 the pressure build-up on the workpiece 2 begins up to the dead weight of the pressure beam 5.
  • phase 7, marked 58 a load reversal takes place by eliminating the mechanical play in the transmission mechanism.
  • phase 8 marked with 59 a further build-up of pressure takes place by means of the pressure bar 5 on the workpiece 2, in which the contact pressure is further increased by the electric motor 8 in addition to the dead weight of the pressure bar 5.
  • phase 9 identified by reference numeral 60 workpiece 2 is then pressed against workpiece support table 3 by means of constant pressure.
  • This in 21 The course shown is one of many examples of how movements and the pressing of the pressure bar 5 can be specifically controlled and regulated by means of the electric motor 8 and the transmission mechanism, which is equipped with a correspondingly high degree of efficiency, using the invention. Almost any contact pressure curves can be implemented.
  • the power consumption of the electric motor 8 could also be used, for example, which would result in a corresponding curve.
  • the operating personnel 61 positioned behind the sawing line 9 as seen in the main transport direction 64 is shown as an example. Further shows 22 also known variants of intervention monitoring devices 16, as they can be used to monitor the intervention of the operating personnel 61 in the area between the pressure beam 5 and the workpiece 2 or workpiece support table 3, in order to be able to carry out the methods mentioned at the outset on this basis.
  • intervention monitoring devices 16 can be implemented in all of the exemplary embodiments described above and also in other variants of panel dividing systems 1 according to the invention, without this being drawn in the figures discussed so far. This also applies to the cover 65 which, as is known per se in the prior art, shields the side of the pressure beam 5 which faces the operating personnel 61 . These intervention monitoring devices 16 are always relevant when it comes to a panel dividing system 1 in which the workpieces in the area of the saw line 9 or the pressure beam 5 are manipulated exclusively or at least also manually by the operating personnel 61 . In the case of fully automatic panel dividing systems 1, these safety devices can also be omitted.
  • the first intervention monitoring device 16 is in 22 a per se known slatted curtain 62 is shown, the slats of which preferably open automatically, as is known per se, when the saw 4 and any scoring saw 34 that may be present have reached their safety position, before the operating personnel 61 reaches into the area of the pressure beam 5 with their hand or their entire arm and the sawing line 9 can intervene.
  • An intervention monitoring device 16 can be created by monitoring the position of the slats of the slat curtain 62 .
  • a second variant of an intervention monitoring device 16 is formed by the safety strip 63, which in this exemplary embodiment faces upwards is pivoted when a hand or arm or other object is in the area immediately in front of the pressure bar 5.
  • this safety strip 63 is arranged behind the sawing line 9 and thus behind the pressure beam 5 and thus on the side on which the operating personnel 61 is located, as viewed in the main transport direction 64 .
  • preferred embodiment variants of the safety strip 63 can recognize the essentially wedge-shaped shape of the hand and the arm of the operator. This is known per se.
  • the formation of the elastic support 26 as a pressure sensor strip 17 is also shown. This can also be used to detect when the hand or arm of the operator 61 is still in the area of the sawing line 9 when the pressure beam 5 is being lowered.
  • intervention monitoring devices 16 known per se in the prior art can of course also be used in the panel dividing systems 1 explained at the outset and the methods for their operation in order to detect manual intervention by the operating personnel 61 in the area between the pressure beam 5 and the workpiece support table 3.
  • the safety position sensor 15 is also shown schematically, with which it can be determined independently of the position determination device 14 whether the pressure bar 5 is in a predetermined safety position at a distance above the workpiece support table 3 and/or the workpiece 2.
  • Such safety position sensors 15 are known per se, so that they 22 are only shown schematically.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)

Claims (23)

  1. Installation de découpe de plaques (1) pour scier au moins une pièce à usiner (2) constituée d'au moins une plaque individuelle ou d'au moins une pile de plaques, l'installation de découpe de plaques (1) présentant au moins une table de support de pièces à usiner (3) et au moins une scie (4) et au moins une barre de pression (5) et au moins deux montants de barre de pression (6, 7) et au moins un moteur électrique (8), la scie (4) pouvant être déplacée le long d'une ligne de sciage (9) de la table de support de pièces à usiner (3) pour scier la pièce à usiner (2) reposant sur la table de support de pièces à usiner (3), et la barre de pression (5) étant logée sur les montants de barre de pression (6, 7) en pouvant être déplacée dans la direction (10) vers la table de support de pièces à usiner (3) et dans la direction (11) en s'éloignant de la table de support de pièces à usiner (3), et étant entraînée par le moteur électrique (8) pour effectuer les mouvements de déplacement le long des montants de pression (6, 7) et pour presser la pièce à usiner (2) dans la zone de la ligne de sciage (9) contre la table de support de pièces à usiner (3), caractérisée en ce que l'installation de découpe de plaques (1) est munie d'un frein de blocage (12) pour bloquer la barre de pression (5) dans sa position actuelle respective par rapport à la table de support de pièces à usiner (3), le frein de blocage (12) pouvant être commuté au moins entre un état de blocage, dans lequel la barre de pression (5) est bloquée par le frein de blocage (12) dans sa position actuelle respective par rapport à la table de support de pièces à usiner (3), et un état de libération, dans lequel la barre de pression (5) est libérée par le frein de blocage (12), de préférence entièrement) pour se déplacer le long des montants de barre de pression (6, 7) par rapport à la table de support de pièces à usiner (3) et pour presser la pièce à usiner (2) dans la zone de la ligne de sciage (9) contre la table de support de pièces à usiner (3).
  2. Installation de découpe de plaques (1) selon la revendication 1, caractérisée en ce que le frein de blocage (12) est un frein de blocage à fermeture automatique, pour lequel il est de préférence prévu qu'il prenne obligatoirement l'état de blocage lorsque le moteur électrique (8) n'est pas actif.
  3. Installation de découpe de plaques (1) selon la revendication 1 ou 2, caractérisée en ce que le frein de blocage (12) est intégré dans le moteur électrique (8) et/ou en ce qu'au moins à l'état de blocage, le frein de blocage (12) agit sur un arbre d'entraînement (13) du moteur électrique (8).
  4. Installation de découpe de plaques (1) selon l'une des revendications 1 à 3, caractérisée en ce que l'installation de découpe de plaques (1) est munie d'un dispositif de détermination de position (14) pour déterminer la position actuelle respective de la barre de pression (5) par rapport à la table de support de pièces à usiner (3).
  5. Installation de découpe de plaques (1) selon la revendication 4, caractérisée en ce que le dispositif de détermination de position (14) est intégré dans le moteur électrique (8), et de préférence mesure le mouvement d'un ou de l'arbre d'entraînement (13) du moteur électrique (8).
  6. Installation de découpe de plaques (1) selon l'une des revendications 1 à 5, caractérisée en ce que la barre de pression (5) peut être déplacée dans une position de sécurité prévue pour la manipulation de la pièce à usiner (2) par un opérateur (61) et située à distance de la table de support de pièces à usiner (3), et l'installation de découpe de plaques (1) est munie d'un capteur de position de sécurité (15) pour déterminer si la barre de pression (5) se trouve dans la position de sécurité.
  7. Installation de découpe de plaques (1) selon l'une des revendications 1 à 6, caractérisée en ce que l'installation de découpe de plaques (1) est munie d'au moins un dispositif de surveillance d'intervention (16) pour détecter une intervention manuelle d'un opérateur (61) dans une zone située entre la barre de pression (5) et la table de support de pièces à usiner (3), étant de préférence prévu que le dispositif de surveillance d'intervention (16) soit une barre de capteurs de pression (17) disposée sur la barre de pression (5) d'un côté de la barre de pression (5) tourné vers la table de support de pièces à usiner (3).
  8. Installation de découpe de plaques (1) selon l'une des revendications 1 à 7, caractérisée en ce que la barre de pression (5) s'abaisse sous l'effet de la gravité d'une position distante de la table de support de pièces à usiner (3) en direction (10) vers la table de support de pièces à usiner (3) lorsque le moteur électrique (8) est à l'état inactif et que le frein de blocage (12) est à l'état de libération.
  9. Installation de découpe de plaques (1) selon l'une des revendications 1 à 8, caractérisée en ce qu'un mécanisme de transmission de l'installation de découpe de plaques (1) est disposé et/ou agit entre la barre de pression (5) et le moteur électrique (8), de préférence entre la barre de pression (5) et un ou l'arbre d'entraînement (13) du moteur électrique (8), pour déplacer et guider la barre de pression (5) le long des montants de la barre de pression (6, 7) et pour presser la pièce à usiner (2) dans la zone de la ligne de sciage (9) contre la table de support de pièces à usiner (3), et le mécanisme de transmission présente un rendement global d'au moins 80 %, de préférence d'au moins 90 %, lorsque le frein d'arrêt (12) se trouve dans l'état de libération.
  10. Installation de découpe de plaques (1) selon la revendication 9, caractérisée en ce que le mécanisme de transmission est muni d'au moins un engrenage de transmission, de préférence un engrenage à crémaillère (18) ou un engrenage à vis (19), pour convertir le mouvement généré par le moteur électrique (8) en un mouvement de la barre de pression (5) le long des montants de barre de pression (6, 7) et/ou en une pression de la pièce à usiner (2) dans la zone de la ligne de sciage (9) contre la table de support de pièces à usiner (3), et d'au moins un guidage (20) pour guider la barre de pression (5) le long des montants de barre de pression (6, 7).
  11. Installation de découpe de plaques (1) selon la revendication 10, caractérisée en ce que le mécanisme de transmission comprend en outre un engrenage multiplicateur et/ou réducteur (21) pour la multiplication et/ou la réduction du mouvement généré par le moteur électrique (8).
  12. Installation de découpe de plaques (1) selon l'une des revendications 1 à 11, caractérisée en ce que pour effectuer les mouvements de déplacement de la barre de pression (5) le long des montants de barre de pression (6, 7) et pour presser la pièce à usiner (2) dans la zone de la ligne de sciage (9) contre la table de support de pièces à usiner (3) au moyen de la barre de pression (5), la barre de pression (5) de l'installation de découpe de plaques (1), ou chaque barre de pression (5) de l'installation de découpe de plaques (1), peut être entraînée par exactement un moteur électrique (8) en tant qu'unique unité d'entraînement motorisée.
  13. Installation de découpe de plaques (1) selon l'une des revendications 1 à 12, caractérisée en ce que le moteur électrique (8) ou chaque moteur électrique (8) est disposé dans la zone de l'un des montants de barre de pression (6, 7), de préférence dans l'un des montants de barre de pression (6, 7).
  14. Installation de découpe de plaques (1) selon la revendication 13, caractérisée en ce qu'une butée angulaire (22) de l'installation de découpe de plaques (1) est disposée sur ce montant de barre de pression (6, 7), ou au moins entre ce montant de barre de pression (6, 7) et la ligne de sciage (9), pour aligner la pièce à usiner (2) sur la table de support de pièces à usiner (3).
  15. Installation de découpe de plaques (1) selon l'une des revendications 1 à 14, caractérisée en ce que le moteur électrique (8) est muni d'un boîtier de moteur (23), et le boîtier de moteur (23) est fixé sur la barre de pression (5) de telle sorte que le moteur électrique (8) est déplacé avec la barre de pression (5) lors du déplacement de la barre de pression (5) le long des montants de la barre de pression (6, 7).
  16. Installation de découpe de plaques (1) selon l'une des revendications 1 à 15, caractérisée en ce que le moteur électrique (8) entraîne un arbre de transmission (24) de l'installation de découpe de plaques (1) s'étendant le long de la barre de pression (5) de l'un des montants de barre de pression (6, 7) à l'autre des montants de barre de pression (6, 7).
  17. Procédé de fonctionnement d'une installation de découpe de plaques (1) selon l'une des revendications 1 à 16, caractérisé en ce que, lorsque le moteur électrique (8) n'est pas actif, le frein de blocage (12) est amené de force à l'état de blocage.
  18. Procédé de fonctionnement d'une installation de découpe de plaques (1) selon l'une des revendications 1 à 16, caractérisé en ce que la barre de pression (5) est déplacée dans une position de sécurité prévue pour la manipulation de la pièce à usiner (2) par un opérateur et située à distance de la table de support de pièces à usiner (3), et y est maintenue au moyen du moteur électrique (8) ou du frein de blocage (12) lorsqu'au moins un ou le dispositif de surveillance d'intervention détecte une intervention manuelle d'un opérateur (61) dans la zone située entre la barre de pression (5) et la table de support de pièces à usiner (3).
  19. Procédé de fonctionnement d'une installation de découpe de plaques (1) selon l'une des revendications 1 à 16, caractérisé en ce que, lors de l'interruption d'une opération de sciage, la scie (4) est amenée dans une position de sécurité, puis la barre de pression (5) est déplacée dans une position de sécurité prévue pour la manipulation de la pièce à usiner (2) par un opérateur (61) et située à distance de la table de support de pièces à usiner (3), et y est maintenue au moyen du moteur électrique (8) ou du frein de blocage (12).
  20. Procédé de fonctionnement d'une installation de découpe de plaques (1) selon l'une des revendications 1 à 16, caractérisé en ce que la séquence suivante d'étapes de procédé est exécutée :
    a) positionnement de la pièce à usiner (2) sur la table de support de pièces à usiner (3) et sur la ligne de sciage (9), la barre de pression (5) étant disposée à distance de la table support de pièces usiner (3) pendant ce positionnement ;
    b) descente de la barre de pression (5) dans la direction (10) vers la pièce à usiner (2) ;
    c) Arrêt de la barre de pression (5) lors de l'entrée en contact avec la pièce à usiner (2) ou dans une position pouvant être prédéfinie avant l'entrée en contact de la barre de pression (5) sur la pièce à usiner (2) ;
    d) application d'une pression de consigne ou d'une évolution de pression de consigne pouvant être prédéterminée au moyen de la barre de pression (5) sur la pièce à usiner (2), et sciage de la pièce à usiner (2) au moyen de la scie (4) le long de la ligne de sciage (9) ;
    e) soulèvement de la barre de pression (5) de la pièce à usiner (2).
  21. Procédé selon la revendication 20, caractérisé en ce qu'à l'étape b) du procédé, une vitesse à laquelle la barre de pression (5) est abaissée en direction (10) de la pièce à usiner (2) est prédéterminée en fonction de la pièce à usiner (2) et/ou d'un état de fonctionnement ou d'au moins un paramètre de l'installation de découpe de plaques (1).
  22. Procédé selon la revendication 20 ou 21, caractérisé en ce qu'à l'étape c) du procédé, l'entrée en contact de la barre de pression (5) sur la pièce à usiner (2) est détectée par la mesure d'un paramètre de fonctionnement du moteur électrique (8) ou au moyen d'un capteur d'entrée en contact séparé, ou en ce qu'une position de la barre de pression (5), qui est utilisée comme la position pouvant être prédéterminée avant l'entrée en contact de la barre de pression (5) sur la pièce à usiner (2), est connue d'une opération de sciage précédente.
  23. Procédé selon l'une des revendications 20 à 22, caractérisé en ce qu'à l'étape d) du procédé, la pression de consigne ou l'évolution de la pression de consigne pouvant être prédéterminée est prédéterminée en fonction de la pièce à usiner (2) et/ou d'une position de la scie (4) le long de la ligne de sciage (9).
EP18198836.1A 2018-10-05 2018-10-05 Installation de séparation de plaques Active EP3632600B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23184957.1A EP4245448A3 (fr) 2018-10-05 2018-10-05 Installation de division de plaques
EP18198836.1A EP3632600B1 (fr) 2018-10-05 2018-10-05 Installation de séparation de plaques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18198836.1A EP3632600B1 (fr) 2018-10-05 2018-10-05 Installation de séparation de plaques

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP23184957.1A Division EP4245448A3 (fr) 2018-10-05 2018-10-05 Installation de division de plaques
EP23184957.1A Division-Into EP4245448A3 (fr) 2018-10-05 2018-10-05 Installation de division de plaques

Publications (3)

Publication Number Publication Date
EP3632600A1 EP3632600A1 (fr) 2020-04-08
EP3632600C0 EP3632600C0 (fr) 2023-08-23
EP3632600B1 true EP3632600B1 (fr) 2023-08-23

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EP18198836.1A Active EP3632600B1 (fr) 2018-10-05 2018-10-05 Installation de séparation de plaques
EP23184957.1A Pending EP4245448A3 (fr) 2018-10-05 2018-10-05 Installation de division de plaques

Family Applications After (1)

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EP23184957.1A Pending EP4245448A3 (fr) 2018-10-05 2018-10-05 Installation de division de plaques

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793230A (en) * 1986-06-11 1988-12-27 Giben Impianti S.P.A. Pressure beam for sawing machines
ITBO20090169A1 (it) * 2009-03-23 2010-09-24 Biesse Spa Metodo e macchina per il taglio di pannelli di legno o simili
EP2801430A1 (fr) * 2013-05-08 2014-11-12 BIESSE S.p.A. Machine à découper des panneaux de bois ou analogue
EP3081325A1 (fr) * 2015-04-14 2016-10-19 HOLZMA Plattenaufteiltechnik GmbH Installation de coupe de panneaux

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8807094U1 (de) * 1988-05-31 1988-07-14 Schmidler, Hans Kombinierte Kapp- und Tisch-Kreissäge
AT402704B (de) * 1995-04-04 1997-08-25 Ant Panhans Werkzeug Masch Bearbeitungsvorrichtung für plattenförmige werkstücke, insbesondere plattenaufteilsäge
DE202008002323U1 (de) 2008-02-20 2008-06-26 Holzma Plattenaufteiltechnik Gmbh Vorrichtung zum Aufteilen großformatiger plattenförmiger Werkstücke
DE102008015765B4 (de) * 2008-03-26 2016-02-11 Holzma Plattenaufteiltechnik Gmbh Plattenaufteilanlage
IT1395702B1 (it) * 2009-03-23 2012-10-19 Biesse Spa Metodo e macchina per il taglio di pannelli di legno o simili
DE102014210612A1 (de) * 2014-06-04 2015-12-17 Holzma Plattenaufteiltechnik Gmbh Verfahren zum Betreiben einerPlattenbearbeitungsanlage, sowiePlattenbearbeitungsanlage
DE102016104663A1 (de) * 2016-03-14 2017-09-14 Holzma Plattenaufteiltechnik Gmbh Plattenbearbeitungsanlage sowie Verfahren zum Aufteilen von mindestens einem Werkstück mit einer Plattenbearbeitungsanlage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793230A (en) * 1986-06-11 1988-12-27 Giben Impianti S.P.A. Pressure beam for sawing machines
ITBO20090169A1 (it) * 2009-03-23 2010-09-24 Biesse Spa Metodo e macchina per il taglio di pannelli di legno o simili
EP2801430A1 (fr) * 2013-05-08 2014-11-12 BIESSE S.p.A. Machine à découper des panneaux de bois ou analogue
EP3081325A1 (fr) * 2015-04-14 2016-10-19 HOLZMA Plattenaufteiltechnik GmbH Installation de coupe de panneaux

Also Published As

Publication number Publication date
EP4245448A2 (fr) 2023-09-20
EP3632600A1 (fr) 2020-04-08
EP3632600C0 (fr) 2023-08-23
EP4245448A3 (fr) 2023-11-22

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