Classifications

• • 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
  • B26D1/12—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 cutting member moving about an axis
  • B26D1/25—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 cutting member moving about an axis with a non-circular cutting member
  • B26D1/34—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
  • B26D1/36—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and rotating continuously in one direction during cutting, e.g. mounted on a rotary cylinder
  • B26D1/365—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and rotating continuously in one direction during cutting, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
• • 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
  • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
  • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
  • B26D5/34—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier scanning being effected by a photosensitive device
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27D—WORKING VENEER OR PLYWOOD
  • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
  • B27D5/006—Trimming, chamfering or bevelling edgings, e.g. lists

Definitions

• the invention relates to a device on a machine or a machine station for applying a strip or band-shaped edge material and for cutting this edge material, the type specified in the preamble of claim 1.
• Known devices of the aforementioned type are used for capping the edge material applied to the narrow side surfaces of the workpieces.
• the patent specification DE 42 17 291 Cl shows an edge banding machine with which the edge material can be approached to the narrow side surfaces of the workpieces in one pass.
• the applied edge material is usually applied not only on its long sides but also in the direction of passage of the workpieces, both at the front end of the narrow side of the workpiece in question and at the rear end thereof, and these protrusions as a rule also have to be flush with those at the front in the direction of passage - and the back of the narrow sides of the workpiece.
• cross-cut saws are used for this purpose, which are not only fed transversely to the direction of the workpieces, but also synchronously with the workpieces during the cutting process along a workpiece in the direction of travel. not be moved.
• a continuous machine with such trimming units is known from the published patent application EP 0 578 199 AI.
• the invention has for its object to provide a device of the type mentioned that requires a build-up space of short length in the workpiece passage direction at the edge earliest machine or machine station and can also be used for universal incisions or cuts on the edge material.
• the new rotary knife is arranged in a fixed position and therefore a travel path in the direction of workpiece passage does not have to be provided for this.
• the length of the installation space for the stationary rotary knife is reduced to 0.15 to 0.1 times.
• the cutting of the edge material with a plunge or penetrating knife edge can be done much faster than cutting through the edge material than with a cutting saw blade.
• the cutting edge can be carried along with the respective interface of the edge material applied to the narrow side surfaces of the workpiece by appropriate rotation of the knife body, and furthermore at the interface the stroke of the cutting edge transversely to the direction of the workpiece passage in accordance with the projection of the circular arc on the the knife edge moves when cutting, can be used in the radial direction perpendicular to the workpiece pass direction for the depth of cut.
• FIG. 1 shows a schematic plan view of an edge banding machine
• FIG. 2 shows a schematic top view of the edge of the edge banding machine according to FIG. 1 with edge banding material on one narrow side alone. surface-provided workpieces,
• FIG. 3 is an enlarged schematic plan view of the rotary knife for cutting the edge material applied to the narrow sides of the workpiece in the machine according to FIG. 1,
• FIG. 4 shows a schematic plan view of a workpiece to illustrate the engagement position of the cutting edges of the rotary knife when cutting the edge material at the front and rear end of the workpiece narrow side surface in question
• FIG. 5 shows a plan view corresponding to FIG. 4 of a workpiece in the engagement position of the rotary knife, which is provided for the processing of another edge material
• FIG. 5a shows a section through the workpiece of FIG. 5 along the line X-X
• FIG. 6 shows a plan view of a workpiece sequence conveyed in a continuous manner with narrow distances between the workpieces
• FIG. 7 shows a schematic front view of the arrangement of a rotary knife according to FIG. 3 in interaction with a device scanning the narrow sides of the workpiece
• Fig. 8 shows a section through the arrangement along the line YY in Fig. 7 and
• FIG. 9 shows a schematic plan view of an arrangement of two rotary knives according to FIG. 3 with a modified device which scans the narrow sides of the workpiece.
• the edge banding unit has a supply roll 5, from which the edge material 4 is drawn off and brought to the narrow side surfaces 3 of the workpieces 1 by means of pressure rollers 6 while adhering.
• a cutting knife 7 can be provided on the edge banding unit in order to cut a strip of predetermined length from the edge material 4, which is provided for coating a narrow side surface 3 of the workpieces 1.
• the workpieces 1 After running past the edge banding unit, the workpieces 1 pass flush trimming units 8 which trim the edge material 4 on the coated narrow side surface 3 of the workpieces 1 flush with the top and bottom of the plate-shaped workpieces 1.
• the workpieces 1 on the transport chain 2 are passed in the further pass past a rotary knife 9, which is arranged stationary on the pass eg and which will be described in more detail below.
• the front and rear protrusions of the edge material 4 applied to the narrow side surfaces 3 of the workpieces 1 are cut in the direction of passage.
• 2 shows the amount C and D by which the edge material 4 protrudes beyond the narrow sides 26 of the workpiece in the conveying direction of the workpieces 1 and the narrow sides 27 of the workpiece located at the rear.
• the trimming knife 9 shown in detail in FIG. 3 serves to separate these protrusions.
• the cutting knife 9 has a disk-shaped knife body 10, the outline or envelope of which is circular or cylindrical.
• a drive axis or shaft 12 coincides with the circular or cylindrical axis of the knife body 10, via which the entire rotary knife 9 can be driven in rotation.
• the knife body 10 has sector-like recesses 23, each of which has a flank 25 lying radially or radius-parallel to the drive axis 12. This flank 25 serves for the abutment of knife blades 11, which project radially outward beyond the knife body 10 with a free end, a knife edge 13 being located at this end.
• the knife body 10 is driven in the direction of arrow B.
• the knife Body 10 quasi from the narrow side surface 3 of the workpieces 1 running past it and coated with the edge material 4 and is controlled in such a way that the relevant knife edge 13 comes into engagement with the edge material 4 at the intended interface.
• the knife edge 13 is carried along with the passage of the edge strip 4 to be cut by rotating the knife body 10 and is immersed in the material of the edge strip 4 or through this material in order to then be turned out of the engagement position with the interface. It goes without saying that the length of the knife edges 13, viewed in the vertical direction, must be the same size or greater than the width of the edge material 4.
• the radial projection of the knife edges 13 beyond the knife body 10 is sufficiently large to rule out a collision between the workpieces 1 or the edge material 4 applied thereon and the knife body 10.
• the knife body 10 along which the coated narrow sides of the workpiece run tangentially or tangentially parallel, can have a small distance from these narrow sides of the workpiece.
• FIG. 4 a different arrangement of the knife edge 13 on the rotary knife 9 must be provided for the cutting of the edge material 4 flush with the narrow side 26 of the workpiece in the direction of flow than for the cut flush with the narrow side of the workpiece 1 lying back in the direction of flow of the workpieces 1 27.
• the cutting edges 13 on the two blades 11 are ground obliquely across the blade thickness. there is the cutting edge 13 in the plane of a flat flank or outside 24 of each blade 11.
• One blade 11 is placed with this flat flank 24 on the flank 25 of the recess 23 of the knife body 10, the second blade 11 correspondingly with its flat one Flank 24 opposite side.
• the rotation of the knife body 10 is now controlled in such a way that the flat sides 24 of the blades 11, which run out into the cutting edges 13, on the one hand to the upstream narrow workpiece side 26, which is in the direction of flow of the workpieces 1, and on the other hand, in the direction of the workpieces 1 rear, running workpiece narrow side 27 are arranged.
• FIG. 5 like FIG. 4, makes it clear that two or more rotary knives 9 can also be arranged one behind the other, as seen in the direction of travel of the workpieces 1. 5 that cut or cuts can be made by means of the rotary knife 9 also in the course of the narrow surface side 3 to which the edge material 4 is applied. This is the case, for example, if the edging material 4 is one that is provided with a sealing bead 4a, as shown in FIG. 5a. It may be necessary here to allow the sealing bead 4a to extend only over a length G and to leave gaps F and H to or between the further sections of the sealing bead 4a.
• FIG. 6 shows another possible use of the rotary knife 6, which is provided when a plurality of workpieces 1 have been coated in a dense sequence by means of the edge banding unit of the edge banding machine on the aligned narrow side surfaces of the workpiece together with a strip of edge material 4.
• the workpieces 1, which are then still contiguous, can be separated from one another at the gaps J existing between them by severing the strip of the edge material 4 by means of the rotary knife 9.
• FIGS. 7 and 8 show a special arrangement for the rotary knife 9. This design is provided in particular when the edge material 4 applied to the workpieces 1 is not to be cut but only to be cut or somewhat cut off from it. This involves pressing the rotary knife 9 resiliently against the edge material 4 on the narrow side surfaces of the workpieces 1 in question.
• FIGS. 7 and 8 illustrate basic features for the drive of the rotary knife 9.
• the rotary knife 9 is connected via a shaft 12, which represents the axis of rotation, to a positioning drive 15, which is controlled in such a way that the relevant knife edge of the intended interface on Tape material 4 follows.
• a sensor 14 which scans reference points or marks on the workpieces 1 passing through. This can be the cross-feed direction device of the workpiece 1 lying workpiece narrow sides 26 or 27 (Fig. 2) act.
• a control command is given to the positioning drive 15 over a distance K, which then rotates the rotary knife 9 so that the knife edge in question comes into suitable engagement with the edge material 4 or with the sealing bead 4a attached to it. If two knife edges 13 are present on the rotary knife 9, as illustrated in FIG. 3, the rotary knife 9 rotates 180 ° for one cutting operation on one of the two narrow sides 26, 27 of the plate.
• FIGS. 7 and 8 also show those features which cause the rotary knife 9 to act resiliently towards the workpieces 1 passing through.
• the rotary knife with its positioning drive 15 is arranged on a carriage 18, which can be moved on guide rods 17 transversely to the direction of travel of the workpieces 1.
• the guide rods 17 are fastened by means of a holder 16 to the machine frame 29, which is indicated in FIGS. 7 and 8.
• the carriage 18 is acted upon by a pneumatic cylinder 19, and the carriage 18 including the rotary knife 9 is supported on the continuous narrow side surface of the respective workpieces 1 or on the edge material 4 attached thereon by means of a feeler wheel 20 which is arranged on a carriage 18 Support arm 28 is mounted.
• an upper pressure 30 is shown in FIG. 8, which moves with the workpieces 1 and presses them against the transport chain 2.
• FIG. 9 shows an arrangement of two rotary knives 9, as is preferably provided when the workpieces 1 have a tight sequence with a narrow distance J in the direction of passage A.
• the two rotary knives 9 are each arranged on a carriage 18, which, however, has two holding arms 31 which protrude in the direction of the workpieces 1 passing through and each carry a feeler wheel 22 or a feeler roller , These holding arms 31 encompass the respective rotary knife laterally, so that the rotary knives 9 and the feeler wheels 22 have a center distance when viewed in the direction of travel of the workpieces 1.
• the rotary knives 9 protrude through the feel, so to speak.

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7672914

Family Applications (1)

Country Status (6)

Cited By (2)

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Citations (2)

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• 2001
  • 2001-02-06 DE DE10105161A patent/DE10105161C1/de not_active Expired - Fee Related
• 2002
  • 2002-02-05 DE DE50207572T patent/DE50207572D1/de not_active Expired - Lifetime
  • 2002-02-05 WO PCT/EP2002/001141 patent/WO2002062542A1/de active IP Right Grant
  • 2002-02-05 EP EP02710838A patent/EP1409211B1/de not_active Expired - Lifetime
  • 2002-02-05 ES ES02710838T patent/ES2266461T3/es not_active Expired - Lifetime
  • 2002-02-05 AT AT02710838T patent/ATE333349T1/de not_active IP Right Cessation
  • 2002-02-05 JP JP2002562532A patent/JP3842737B2/ja not_active Expired - Fee Related

Patent Citations (2)

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