EP4263158A1 - Procédé de séparation d'une section profilée à chambres multiples et dispositif de séparation de section profilée à chambres multiples - Google Patents

Procédé de séparation d'une section profilée à chambres multiples et dispositif de séparation de section profilée à chambres multiples

Info

Publication number
EP4263158A1
EP4263158A1 EP20838537.7A EP20838537A EP4263158A1 EP 4263158 A1 EP4263158 A1 EP 4263158A1 EP 20838537 A EP20838537 A EP 20838537A EP 4263158 A1 EP4263158 A1 EP 4263158A1
Authority
EP
European Patent Office
Prior art keywords
movement
cutting blade
cutting
phase
chamber profile
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.)
Withdrawn
Application number
EP20838537.7A
Other languages
German (de)
English (en)
Inventor
Lennart Olsson
Martin BÖKENKAMP
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.)
Schoeler GmbH
Original Assignee
Schoeler GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schoeler GmbH filed Critical Schoeler GmbH
Publication of EP4263158A1 publication Critical patent/EP4263158A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/02—Shearing machines or shearing devices cutting by blades which move parallel to themselves having both upper and lower moving blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/086—Electric, magnetic, piezoelectric, electro-magnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/18—Toggle-link means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/0006—Means for guiding the cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D23/00—Machines or devices for shearing or cutting profiled stock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00—Machines or methods used for cutting special materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0391—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits a single plate being bent to form one or more conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element

Definitions

  • the invention relates to a method for separating a multi-chamber profile, in particular a multi-chamber profile for use as a tube in a heat exchanger, and a multi-chamber profile separating device.
  • a tube in the form of a multi-chamber profile is severed with at least one movable cutting blade.
  • the cutting blade performs two superimposed movements, which run in different directions of movement. This means that the two superimposed movements together bring about a resulting movement in a resulting direction of movement.
  • the two movements do not run at a constant speed, but in different phases of movement.
  • the cutting blade is thus moved through the tube or profile in at least two movement phases.
  • a movement in a first direction of movement predominates, while in a second phase of movement, a predominantly movement in a second direction of movement takes place.
  • the first direction of movement runs along a cutting edge of the cutting blade, that is to say the cutting blade is moved or displaced in the first direction of movement parallel to the cutting edge.
  • the second direction of movement runs transversely, particularly preferably perpendicularly, to the cutting edge.
  • the profile is cut or separated with two opposite cutting blades, which are brought closer to each other during the cutting process.
  • the cutting blades can be designed or shaped identically or differently.
  • the cutting blades are moved relative to one another predominantly in the first direction of movement and in the second phase of movement relative to one another predominantly in the second direction of movement. This relative movement can take place by moving only one of the two cutting blades.
  • both cutting blades are preferably moved, particularly preferably moved simultaneously.
  • the two cutting blades are displaced predominantly parallel to one another along their cutting blades, in which case a slight movement towards one another can also take place. In this way, the cutting blades can be moved into the pipe from the outside in a cutting manner.
  • the cutting blades are then moved toward one another predominantly in the second direction of movement transversely to the cutting edges, so that they shear off or snap off the structure or lamellae inside the multi-chamber profile.
  • This sequence of movements has the advantage that inside the tube the movement of the cutting blades relative to one another essentially takes place in the direction in which the lamellae extend, so that these are only slightly deformed when they are cut through.
  • the second direction of movement preferably runs in the main direction of extension of the slats in the tube cross section of the multi-chamber profile.
  • the multi-chamber profile preferably has an outer tube wall and a lamellar structure formed on the inside and the outer tube wall is predominantly separated in the first phase of movement and the lamellae are separated in the second phase of movement. This ensures that the lamellae are preferably snapped off in the direction in which they extend and can deform as little as possible during the cutting process. At the same time, the pipe wall can be severed safely and quickly with little pipe deformation.
  • the at least one cutting blade is moved in the second direction of movement in the second phase of movement at a higher speed than in the first phase of movement. This means that in the first phase of movement the cutting blade or the cutting blades are not moved at all or are moved more slowly in the second direction of movement. In the subsequent second phase of movement, the movement of the cutting blade or cutting blades in the second direction of movement then takes place faster, so that the result in the second phase of movement is a predominant movement in the second direction of movement when the two movements are superimposed.
  • the at least one cutting blade or the two cutting blades are moved in the second phase of movement in the second direction of movement by a greater amount than in the first phase of movement. This means that in the second direction of movement the cutting blades or the cutting blade are not moved at all or only to a small extent in the first movement phase. away, while most of the movement in the second direction of movement then takes place in the subsequent second phase of movement.
  • the separation of the pipe or multi-chamber profile preferably takes place during a simultaneous movement of the pipe, ie a simultaneous feed of the pipe in its longitudinal direction.
  • the separation thus takes place on the fly.
  • the at least one cutting blade or the two cutting blades are moved during the cutting process simultaneously with the feed of the profile or tube, so that there is preferably essentially no relative movement between the tube and the cutting blades during the cutting process in the longitudinal direction of the tube.
  • the tube is advanced relative to the cutting blades after the cutting process has been completed.
  • the subject matter of the invention is a multi-chamber profile separating device with the features described below. It should be understood that the method features resulting from the following description simultaneously represent preferred configurations of the method described above, while aspects relating to the device which result from the preceding description of the method also represent preferred configurations of the cutting device described below.
  • the multi-chamber profile cutting device is preferably designed to carry out the method described above.
  • the multi-chamber profile cutting device has at least one cutting blade and a cutting blade drive, which moves the cutting blade relative to a pipe or pipe to carry out the cutting process. Moved multi-chamber profile to cut through it.
  • the cutting blade drive is designed in such a way that it carries out a special sequence of movements, as will be described below.
  • the cutting blade performs a first movement in a first direction of movement along its cutting edge, i.e. parallel to its cutting edge, and a second movement, which is superimposed on the first movement, in a second direction of movement, which runs transversely, particularly preferably normal, to the cutting edge.
  • the movement in the first direction of movement causes a predominantly cutting movement, while the movement in the second direction of movement causes a predominantly shearing or clipping movement.
  • the cutting blade drive is designed in such a way that the two movements dominate the resulting movement to different extents, ie the movements in the two directions of movement are not constant.
  • the cutting blade drive is designed in such a way that in a second movement phase of the cutting process, the second movement takes place at a higher speed than in a first movement phase of the cutting process. It is thus achieved that in the first phase of movement the movement in the first direction of movement dominates the cutting process, while in the second phase of movement the movement of the cutting blade in the second direction of movement dominates the cutting process.
  • the pipe is severed essentially in a cutting manner and in the second phase of movement, it is severed essentially in a shearing manner.
  • the multi-chamber profile cutting device is preferably designed in such a way that it has two cutting blades lying opposite one another and a cutting blade drive which moves the cutting blades relative to one another, in particular moves them towards one another.
  • the relative movement can be a movement of only one of the
  • cutting blades are preferably achieved by moving both cutting blades, particularly preferably by moving both cutting blades simultaneously.
  • the cutting blades can be designed identically, but they can also be shaped differently.
  • the cutting blade drive is designed in the manner described above, so that it moves the cutting blades relative to each other in two superimposed movements, with a first movement in a first direction of movement along the cutting edges of the cutting blades and a second superimposed movement in a second direction of movement across, particularly preferred normal to the cutting edges.
  • the first and second movement are superimposed on one another in such a way that in a second phase of movement the second movement takes place at a higher speed than in the first phase of movement.
  • the cutting blade drive is designed such that in the first movement phase essentially only a movement of the at least one cutting blade or the two cutting blades takes place in the first direction of movement.
  • the cutting blade drive is designed in such a way that in the first phase of movement the movement in the second direction of movement is only very small, preferably by an amount which is less than the wall thickness of the profile or pipe to be severed. In this way it is achieved that the pipe wall is essentially severed in the manner of a knife blade.
  • the cutting blade drive can be designed such that in the first movement phase the first movement is carried out at a higher speed than the second movement and preferably in the second movement phase the second movement is carried out at a higher speed than the first movement. This also leads to a course of movement in which the first movement phase and the second movement dominates the second movement phase, so that overall a two-dimensional movement curve of the cutting blades is achieved.
  • the cutting blade drive is coupled to the two cutting blades in such a way that in the first and/or the second movement phase both cutting blades are moved by the cutting blade drive.
  • the configuration is preferably such that both cutting blades are moved synchronously in both movement phases, so that both cutting blades are moved towards one another in the first movement phase mainly in the first movement direction and in the second movement phase mainly in the second movement direction.
  • the cutting blade drive is also preferably designed in such a way that the at least one cutting blade or the two cutting blades move relative to one another in the second movement phase in the second movement direction by a greater distance, preferably more than twice as long as in the first movement phase , to be moved.
  • the distance in the first direction of movement is preferably shorter than the wall thickness of the tube wall, while the distance in the second direction of movement in the second phase of movement corresponds to the remaining part of the profile or tube diameter.
  • each of the blades is thus preferably moved in the first movement phase in the second movement direction by a distance which at most essentially corresponds to the wall thickness of the pipe, and in the second movement phase in the same movement direction by an amount which corresponds to half the profile or pipe diameter minus the wall thickness of the outer wall.
  • the second extends Direction of movement relative to the pipe preferably in the direction of the smallest pipe diameter.
  • the cutting blades are preferably arranged in such a way and the cutting blade drive is designed in such a way that the cutting blades have a minimum distance from one another at the end of the second phase of movement, which is preferably less than a tenth of a millimeter. It would also be possible for the cutting blades to touch one another or slide along one another to some extent in the manner of scissors.
  • the at least one cutting blade is preferably movably guided on a guide device. If two cutting blades are provided, both cutting blades are preferably movably guided on a guide device or on a guide device in each case.
  • the guide device can define at least one of the directions of movement.
  • the first and the second direction of movement are preferably linear in themselves, the resulting two-dimensional course of movement results from the superimposition, in particular at different speeds, as described above.
  • the guide device for the cutting blade preferably has a first linear guide in the first direction of movement and/or a second linear guide in the second direction of movement. Both directions of movement are preferably defined by a respective linear guide.
  • a cutter holder, which carries the cutting blade, can in turn be movably guided in this first linear guide.
  • the cutting blade can be moved in the direction of both linear guides in a superimposed manner in order to achieve the resultant movement described above.
  • the first and the second direction of movement are preferably directed normal or at right angles to one another.
  • the cutting blade drive expediently has at least one electric drive motor which causes the movement of the cutting blade or cutting blades in the manner described.
  • the cutting blade drive preferably also has gearing means which are designed to convert a rotary movement of the drive motor into the desired linear movements in the two directions of movement described.
  • the cutting blade drive preferably has at least one swivel joint, which is provided with at least one lever arm that can be swiveled about an axis of rotation, this lever arm being coupled via a connecting rod to the at least one cutting blade or to at least one of the two cutting blades for the first movement thereof.
  • a gear arrangement can thus be used to convert the pivoting movement of the lever arm about the axis of rotation into a linear movement of the cutting blade in the first direction of movement.
  • a rotary drive can be arranged on the swivel joint itself, or the lever arm can be swiveled or rotated via a further lever connected to the swivel joint.
  • the cutting blade drive preferably has a swivel joint and two non-rotatable handles that can be swiveled about a common axis of rotation. brace up.
  • the lever arms can preferably be designed in one piece or in one piece.
  • the lever arms are each coupled via a connecting rod to one of the cutting blades for their first movement along the first direction of movement. A synchronous linear movement of the cutting blades in the first direction of movement can thus be realized by a single pivoting movement, which pivots both lever arms together.
  • the cutting blade drive has at least one link guide which causes the second movement of the at least one cutting blade or at least one of the two cutting blades.
  • a slotted guide or two slotted guides are particularly preferred, which bring about the second movement of the cutting blades relative to one another.
  • the link guide enables a linear movement in a first displacement direction to be converted into a linear movement in the second direction of movement, with the course of the second movement in the second direction of movement being defined by the shape of the link guide.
  • the slower movement in the second direction of movement during the first phase of movement and the faster movement in the second direction of movement in the second phase of movement can be defined by the design of the link guide.
  • the link guide is formed in a pivotable lever which is coupled for movement with the at least one cutting blade or one of the two cutting blades.
  • two pivotable levers are preferably provided, each with a slotted guide in a corresponding configuration.
  • a guide body can be displaced in the link guide, preferably in a linear displacement direction.
  • two levers are provided with two slotted guides, preferably a single guide body in both link guides, so that a synchronous movement of the lever and thus the cutting blades in the second direction of movement is realized by displacement of the guide body.
  • the guide body is preferably displaced by a coupled drive motor, the guide body preferably being coupled to a rotating drive motor by a lever or gear arrangement such that the rotary movement of the drive motor is converted into a linear movement of the guide body.
  • the guide body is movably coupled via at least one lever to the lever arm or arms of the pivot joint described above.
  • the linear movement of the guide body can simultaneously rotate the lever of the swivel joint about its axis of rotation and the cutting drive can cause all the above-described movements of the at least one cutting blade or preferably the two cutting blades synchronously with one another via a single drive motor.
  • FIG. 1 is a perspective view of a multi-chamber profile separating device according to the invention
  • FIG. 2 shows a rear view of the separating device according to FIG. 1,
  • FIG. 3 shows a front view of the separating device according to FIGS. 1 and 2 at the beginning of the separating process
  • 4 shows a front view according to FIG. 3 in the middle of the separation process
  • FIGS. 3 and 4 shows a view according to FIGS. 3 and 4 at the end of the separation process
  • FIGS. 1 to 5 shows a perspective view of a partially dismantled cutting blade guide according to FIGS. 1 to 5,
  • Fig. 7 in a diagram the movement of the cutting blades
  • FIG. 8 shows a cross section of the multi-chamber profile to be separated.
  • FIGS. 1 and 2 show perspective overall views of a multi-chamber profile separating device for separating a profile or tube 2 in the form of a multi-chamber profile, as shown in FIG.
  • a multi-chamber profile can be used, for example, as a heat exchanger tube, e.g. in a motor vehicle heat exchanger.
  • the tube 2 is advanced in a cutting system and separated or divided into sections by the separating device.
  • the pipe 2 is guided through a pipe guide 4 into the separating device.
  • the separating device With the continuous feed of the pipe, the separating device, which is shown in Fig. 1 and 2, is moved as a whole with the pipe 2 during the separating process, so that during the separating process there is no relative movement between pipe 2 and the separating device in the direction of advance of the pipe 2 .
  • the severing device has two cutting blades 6 as essential components, which are moved toward one another in order to sever the multi-chamber profile 2 .
  • the cutting blades 6 are respectively interchangeably attached to a blade holder 8.
  • the cutter holders 8 are each guided in a linearly movable manner on a linear guide 10 (see FIG. 6), the linear guides 10 defining a first direction of movement parallel to the cutting edges 12 of the cutting blades.
  • the linear guides 10, on which the cutter holders 8 are guided in a linearly movable manner form a first linear guide, which in turn is attached or fastened to a carriage 14.
  • the direction of the second linear guide 16 extends perpendicularly to the guide directions of the first linear guides 10.
  • the first linear guides 10 and the second linear guides 16 enable the two cutting blades 6 to have two superimposed movements in two mutually normal directions of movement, resulting in a two-dimensional movement along a movement curve for each of the cutting blades 6 results.
  • the linear guides 10 and 16 described form a cutting blade drive with the drive mechanism described below, which implements a special movement sequence for the two cutting blades 6 .
  • the two blade holders 8 are each connected via a push rod or a connecting rod 18 to a lever 20 in the form of a double lever.
  • the lever 20 defines two lever arms between the pivot points of the connecting rods 18 and an axis of rotation 22 about which the lever 20 is pivotable.
  • the lever 20 is attached to a pivot shaft 24 which can be rotated or pivoted about the axis of rotation 22 in a pivot joint.
  • the pivot axis 24 is rotationally connected to a drive lever 26, via which the lever 20 is pivoted.
  • the two cutter holders 8 are displaced linearly in the first linear guides 10 parallel to their cutting edges 12 via the connecting rods 18, whereby one of the cutting blades 6 moves towards the axis of rotation 12 and at the same time the other cutting blade 6 moves away from the axis of rotation 22 .
  • This means that the two cutting blades 6 are synchronously displaced parallel to their cutting edges 12 in opposite directions along the first linear guides 10 .
  • the connecting rod 28 is pivotably connected to a further lever 30 at its end opposite the drive lever 26 .
  • the lever 30 can be pivoted about a pivot axis 32 which extends parallel to the axis of rotation 22 .
  • a recess 34 is formed, in which a pin 36 engages.
  • the width of the recess 34 is defined such that the pin 36 is guided in the recess 34 essentially without play, but can move to a certain extent in a direction normal to the pivot axis 32 .
  • the pin 36 is fastened to a slide 38, which in turn is linearly movably guided in a linear guide 40.
  • the linear guide 40 defines a direction of movement which essentially runs parallel to the direction of movement defined by the first linear guide 10 .
  • the slider 38 has a joint mount 42 which can be engaged by a push rod or a connecting rod for moving the slider 38 linearly in the linear guide 40 .
  • This connecting rod not shown here, can in turn be moved by a drive motor, for example by an eccentric.
  • the spigot 36 extends from the rear of the slider 38. At the position of the spigot 36 extends from the front of the Slider 38 in the opposite direction, a second pin or guide body 44, which engages in a link guide for moving cutting blades 6 in the direction of the second linear guides 16.
  • two pivotable levers 46, 48 are provided, one of which moves one of the cutting blades in the second direction of movement.
  • the levers 46, 48 are angled and pivotable about a common pivot axis 50. Starting from the pivot axis 50, a lever arm extends from the levers 46, 48 to the carriages 14, which are guided in the second linear guides 16. At their ends, the levers 46, 48 each have a pin 52 which engages in a recess in the carriage 14. When the levers 46, 48 are pivoted about the pivot axis 50, the pins 52 are displaced in the longitudinal direction of the second linear guides 16 and move the carriages 14 in the linear guides 16.
  • the levers 46, 48 each have a link guide 54 , in which the pin 44 or the guide body 44, which is attached to the slide 38, is linearly displaceable.
  • the link guides 54, 56 run essentially linearly, but have a deflection in their middle area.
  • the link guide 54 in the lever arm 46 has an elevation 58 on its underside in the middle area
  • the link guide 56 in the lever 48 in its middle area has an elevation 60 pointing downwards in the figures.
  • the guide body 44 moves in the slotted guides 54 and 56 to the left.
  • the link guides 54 and 56 are largely linear in a first section, which defines the first phase of movement, so that the levers 46 and 48 move only very slightly about their pivot axis 50, so that the cutting blades 6 via the carriage 14 in the second Movement direction B are moved only by a small amount. This means that in this first phase of movement, the movement of the cutting blades 6 parallel to their cutting edges in the first direction of movement A, which is defined by the first linear guides 10, dominates.
  • the slider 38 is then moved further, so that the guide body 44 moves further to the left in the slotted guides 54, 56, as shown in FIG.
  • This movement pivots the lever 20 further, so that the cutting blades 6 move further in the first movement direction A parallel to one another.
  • the levers 46 and 48 pivot back so that the carriages 14 and thus the cutting blades 6 are moved apart again and, as shown in FIG represents a renewed separation process.
  • the slide 38 is moved in the opposite direction, i.e. to the right in FIGS. 3 to 5, as a result of which the cutting blades 6 are displaced parallel to the first cutting process by pivoting the lever 20 in the opposite direction in the first direction of movement A .
  • the elevations 58, 60 are passed through the guide body 44, the cutting blades 6 are in turn moved towards one another, as described.
  • the movements along the first direction of movement A and the second direction of movement B do not take place continuously at a constant speed, resulting in a movement sequence as shown schematically in FIG.
  • the curve 62 shows the movement or speed in the first direction of movement A over time t
  • the curve 64 shows the movement in the second direction of movement B or the speed in the second direction of movement B over time t. It can be seen that during the separation process the movement in the second direction of movement B begins later than in the first direction of movement A, so there is a first phase of movement in which the movement in the first direction of movement A dominates and a second phase of movement in which the movement in the second movement direction B briefly prevails, so that the multi-chamber profile 2 is snapped off in this second phase of movement.
  • the tube 2 in the form of a multi-chamber profile has a peripheral wall 66 and a lamellar structure 68 arranged on the inside Circumferential wall 66 are separated by a movement of the cutting blades 6 in the first direction of movement A substantially in the first phase of movement.
  • the lamellar structure 68 is then separated in the second phase of movement, in which the cutting blade 6 is essentially moved towards one another in the second direction of movement B.
  • the second direction of movement B essentially corresponds to the direction in which the lamellae 68 extend transversely to the peripheral wall 66, so that deformations of the lamellar structure 68 during cutting are minimized.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Shearing Machines (AREA)

Abstract

L'invention concerne un procédé de séparation d'une section profilée à chambres multiples (2). La section profilée à chambres multiples (2) est séparée à l'aide d'au moins une lame de coupe (6) qui est déplacée en deux mouvements qui se chevauchent dans deux directions de mouvement (A, B). La lame de coupe (6) est déplacée dans la section profilée à chambres multiples (2) en au moins deux phases de mouvement. Lors d'une première phase de mouvement, la section profilée à chambres multiples (2) est séparée par un mouvement prédominant dans une première direction de mouvement (A) le long d'un bord de coupe (12) de la lame de coupe (6), et lors d'une seconde phase de mouvement, la section profilée à chambres multiples est séparée par un mouvement prédominant dans une seconde direction de mouvement (B) transversalement au bord de coupe (12). L'invention concerne également un dispositif de séparation de section profilée à chambres multiples permettant de mettre en œuvre ledit procédé.
EP20838537.7A 2020-12-21 2020-12-21 Procédé de séparation d'une section profilée à chambres multiples et dispositif de séparation de section profilée à chambres multiples Withdrawn EP4263158A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2020/087535 WO2022135681A1 (fr) 2020-12-21 2020-12-21 Procédé de séparation d'une section profilée à chambres multiples et dispositif de séparation de section profilée à chambres multiples

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EP4263158A1 true EP4263158A1 (fr) 2023-10-25

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EP20838537.7A Withdrawn EP4263158A1 (fr) 2020-12-21 2020-12-21 Procédé de séparation d'une section profilée à chambres multiples et dispositif de séparation de section profilée à chambres multiples

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EP (1) EP4263158A1 (fr)
WO (1) WO2022135681A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450668A (en) * 1992-12-30 1995-09-19 Crown Unlimited Machine, Inc. Method and apparatus for separating tubing
DE102005043093A1 (de) * 2005-09-10 2007-03-15 Modine Manufacturing Co., Racine Wärmetauscherrohr

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