Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H11/00—Feed tables
  • B65H11/002—Feed tables incorporating transport belts
  • B65H11/005—Suction belts
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
  • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
  • B65H5/10—Reciprocating or oscillating grippers, e.g. suction or gripper tables
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
  • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
  • B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/40—Type of handling process
  • B65H2301/44—Moving, forwarding, guiding material
  • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
  • B65H2301/4471—Grippers, e.g. moved in paths enclosing an area
  • B65H2301/44714—Grippers, e.g. moved in paths enclosing an area carried by rotating members
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/40—Type of handling process
  • B65H2301/44—Moving, forwarding, guiding material
  • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
  • B65H2301/4471—Grippers, e.g. moved in paths enclosing an area
  • B65H2301/44716—Grippers, e.g. moved in paths enclosing an area oscillated in arcuate paths
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/40—Type of handling process
  • B65H2301/44—Moving, forwarding, guiding material
  • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
  • B65H2301/4472—Suction grippers, e.g. moved in paths enclosing an area
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/40—Type of handling process
  • B65H2301/44—Moving, forwarding, guiding material
  • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
  • B65H2301/4473—Belts, endless moving elements on which the material is in surface contact
  • B65H2301/44735—Belts, endless moving elements on which the material is in surface contact suction belt
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2801/00—Application field
  • B65H2801/42—Die-cutting
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S271/00—Sheet feeding or delivering
  • Y10S271/90—Stripper

Definitions

• the present invention relates to an apparatus and a method for drawing flat pieces of material and register-accurate transporting the flat pieces of material in a work station of a rotary machine for processing the flat pieces of material.
• the flat material pieces are in particular flat sheets of cardboard or paperboard, and the rotary machine is in particular a rotary die, which produces folding box blanks from the aforementioned flat material sheets for later production of folding boxes, for example pharmaceutical folding boxes.
• the pieces of flat material may also be different types of sheets or envelopes for envelopes or the like.
• the opening of the roller gripper and thus the release of the leading edge of the flat piece of material to be transferred and the Saug Kunststoffbeaufschlagung provided in the sheet transfer roller suction holes are controllable such that the flat piece of material can be passed substantially slip-free of the sheet transfer roller to the suction belt.
• the arranged in addition to the roller gripper in the sheet transfer roller suction holes ensure advantageously even with fluctuations in the thickness of the flat pieces their safe transport. This results from the fact that grippers must always be set to a certain thickness of the flat material pieces. A relatively thin flat piece of material that falls below the predetermined thickness, therefore, can not be held by the gripper sufficiently strong and thus not slip-proof. In this case, the suction air sucked through the suction holes ensures that even the relatively thin flat pieces of material are held firmly and non-slip on the sheet transfer roller despite the reduced efficiency of the gripper. In the context of the present invention, larger tolerances with regard to the thickness of the flat material pieces can thus be tolerated.
• the suction belt is constantly supplied with suction air
• the suction holes are switched simultaneously with or immediately after the opening of the roller gripper, beginning with the suction gripper closest to the roller gripper in the circumferential direction opposite to the rotation direction of the Bogenübemahmewalze successively at least without suction air.
• the flat piece of material is held in a largely increasing in area or area substantially slip-free on the suction belt and transported in a large or reduced in area, still held on the sheet transfer roller area tracking.
• the Saugluftlos the suction holes in a conventional manner by means of a control valve which is arranged on one of the end faces of the Bogenübemahmewalze.
• a control valve which is arranged on one of the end faces of the Bogenübemahmewalze.
• This optional measure should be covered by the formulation "at least suctionless" used in the present application.
• the suction holes are formed in a conventional manner in the form of arranged parallel to the axis of Bogenübemahmewalze Saugloch #2n each comprising a plurality of suction holes.
• the successive interruption of Saugluftbeaufschlagung against the rotation direction of the Bogenübemahmewalze can be done according to the invention in rows, so that a Saugloch #2 is switched to the next without suction air.
• the axis of the sheet transfer roller is preferably arranged substantially vertically above the axis of a deflection roller for deflecting the endless circulating suction belt. In such an arrangement, it may not be avoidable that in the region of the suction belt, in which it is to take over the flat piece of material, a suctionless zone is formed. If this is the case, the roller gripper can only be opened, if required, when the front edge of the flat piece of material to be transferred has been transported by the sheet transfer roller over the suction-free zone.
• the suction belt has a number of dip recesses corresponding to the number of roller grippers into which the respective roller gripper transfers the flat material piece can dip into the suction belt.
• the immersion recesses can either be through-holes or possibly only depressions in the suction belt.
• FIG. 1 shows a schematic side view of an embodiment of the device according to the invention, in which the transfer of a flat material sheet from the gripper device to the sheet transfer roller is shown;
• Fig. 2 a detail view of FIG. 1, in which a first rotational position of
• Fig. 3 a detail view of FIG. 1, in which a second rotational position of
• Fig. 4 a detail view of FIG. 1, in which a third rotational position of
• FIG. 5 shows a plan view of an embodiment of the suction belt of the suction belt transport device
• FIG. 6 shows a plan view of several suction belts as an alternative to the single suction belt according to FIG. 5.
• a device 1 which serves as a collection of a rotary die for the production of Faltschachtelzuitesen from flat pieces of material in the form of flat material sheets of Kartona- ge or cardboard. From each of the flat sheets B several, not shown Faltschachtelzuitese be prepared.
• Fig. 1 is a right-to-left inclined, endless circulating Schuppenstrom treatband 14 of a remainder not shown and known per se Schuppenstromlegers shown.
• a gripping device 2 designed here as an oscillating gripper is mounted so as to be movable back and forth according to a double arrow in a certain swiveling range.
• the gripper device 2 can pivot in a conventional manner to the left in Fig. 1 end of the shingled conveyor belt 14 and take the leading edge of the lowermost Flachmaterialbo- gene B on the scale conveyor belt 14 in the associated dead center of their swinging motion.
• the gripper device 2 oscillates in the counterclockwise direction and thereby accelerates the flat material sheets B to the cycle speed of the rotary die.
• the on clock Speed accelerated flat material sheet B is transferred in the swing position of the gripper device 2 shown in Fig. 1 to a sheet transfer roller 3, which rotates at clock speed in the direction of rotation R - clockwise here - and is designed in particular as a clock roller.
• the sheet transfer roller 3 has at its periphery two in Fig. 1 successive roller gripper 4, which can be closed and opened. In their closed position they hold the leading edge of the flat material sheet B and in their open position they release it again.
• suction holes 5 are arranged, which extend over an angular range of about 80 ° of the circumference of the sheet transfer roller 3. They are arranged in parallel to the axis 11 of the sheet transfer roller 3 extending Saugloch-2n.
• the sheet transfer roller 3 passes the flat material sheet B to the Saugbandtransport worn 6 shown in Fig. 1. It comprises a cycle speed of the rotary punch endlessly circulating in the direction of arrow driven suction belt 7, for example, the type shown in Fig. 5 5, the suction belt 7 has perforation holes 15, through which ambient air can be sucked in with the aid of the suction box 16 in FIG.
• the deflection of the suction belt 7 is effected by means of the guide rollers 9, 17 and 18, wherein the guide roller 18 acts as a drive roller.
• the sheet transfer roller 3 is formed in a conventional manner is not circular but elliptical, to allow the gripper device 2, past her back to the top dead center to pick up the next Swing sheet B flat.
• the axis 11 of the sheet transfer roller 3 is substantially vertically above the axis 10 of the guide roller 9. The resulting sequence of transfer of the flat sheet B from the sheet transfer roller 3 at the suction belt 7 will be explained in more detail below.
• Fig. 2 is the sheet transfer roller 3 with its roller grippers 4 in the 6 o'clock position.
• the roller grippers 4 are in their closed position and hold the leading edge of the flat material sheet B positively.
• At least the suction holes 5 covered in FIG. 2 by the flat material sheet B were successively supplied with suction air in the course of the previous takeover of the flat material sheet B by the gripper device 2 counter to the direction of rotation R of the sheet transfer roller 3 and at least a substantial part of the suction holes 5 is in contact with the flat material sheet B.
• the flexural rigidity of the sheet material sheet B made of cardboard may cause the rear portion of the sheet sheet B, which is right in FIG. 2, to not abut on the sheet take-up roll 3.
• Fig. 2 it can also be seen that the suction box 16 is brought as close as possible to the right to the guide roller 9. Nevertheless, a suction-effect-free zone SZ results on the surface of the suction belt 7 forming the transport plane TE.
• the slip-free and register-accurate transfer of the flat material sheet B to the suction belt 7 can be carried out in various ways with respect to the suction-free zone SZ.
• Position of the sheet transfer roller 3 is not yet open and at least the covered by the flat sheet B suction holes 5 are still with Suction applied until the rotational position of the Bogenübernah- mewalze 3 shown in Fig. 3 is reached.
• a second method of transferring the flat material sheet B to the suction belt 7 differs from the first method in that the roller grippers 4 are already opened. When they are in the 6 o'clock position shown in FIG. The roller grippers 4 thus move into their open positions when the direction of movement of the leading edge of the flat material sheet B is in the transport plane TE. Accordingly, the leading edge of the flat material sheet B reaches the suction belt 7 without being pinned upwards beyond the transport plane TE and is transported in the suction-effect-free zone SZ exclusively by means of the suction holes 5 in the sheet transfer roller 3. The successive interruption of Saugluftbeetzstoffschung the Saugloch Herbertn also takes place here in each case in the 6 o'clock position.
• the gradually increasing region ZB of the flat material sheet B arises, in which the latter by means of the suction box 16 sucked suction air is held on the surface of the suction belt 7.
• the increasing region ZB starts at the leading edge of the flat material sheet B and extends to the right end of the suction box 16 in FIG. 4.
• the region in which the flat material B increases - B gene is still held at the sheet transfer roller 3, from.
• roller grippers 4 can be opened in the 6 o'clock position as in the above-described second mode.
• the roller grippers 4 project radially beyond the lateral surface of the sheet transfer roller 3.
• the suction belt 7 according to FIG. 5 has two immersion recesses 8 in the form of through holes whose spacing corresponds to the spacing of the roller grippers 4 in the axial direction of the sheet transfer roller 3.
• the roller claw 4 dive into the immersion recesses 8, so that in an advantageous manner the transport plane TE of the suction belt 7 is tangent to the traversed by the suction holes 5 circular path.
• the perforated suction belt 7 shown in Fig. 5 can be divided in the longitudinal direction, so that two parallel juxtaposed, perforated suction belts are formed, in each of which one of the immersion recesses 8 is.
• the suction belts 12 can be arranged at a distance from one another with intermediate spaces 13, so that suction air for holding the flat material sheet B can be sucked through the intermediate spaces 13.
• the suction of the suction air is carried out by suction openings 19, which are arranged in a below the visible in Fig. 6 suction belts 12 suction box.
• the roller grippers 4 can at the beginning of the transfer of the flat material sheet B to the suction belts 12 dip into the respective outer intermediate spaces 13, whose distance corresponds to the distance between the two roller gripper 4. This has over the suction belt 7 has the advantage that the suction belts 12 may indeed be driven at clock speed, but not exact time a certain orbital position relative to the Bogenübemahmewalze 3 must comply.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
• Delivering By Means Of Belts And Rollers (AREA)
• Sheets, Magazines, And Separation Thereof (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39942975

Family Applications (1)

Country Status (5)

Families Citing this family (2)

Family Cites Families (20)

• 2007
  • 2007-07-28 DE DE102007035435A patent/DE102007035435B4/de not_active Expired - Fee Related
• 2008
  • 2008-07-15 EP EP08773990A patent/EP2170749A1/de not_active Withdrawn
  • 2008-07-15 JP JP2010518524A patent/JP4944992B2/ja not_active Expired - Fee Related
  • 2008-07-15 US US12/671,160 patent/US8123221B2/en not_active Expired - Fee Related
  • 2008-07-15 WO PCT/EP2008/005740 patent/WO2009015761A1/de active Application Filing

Non-Patent Citations (1)

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