EP1264792B1 - Dispositif et procédé de division d'une pile de feuilles en rames d'un nombre de feuilles prédéterminé - Google Patents

Dispositif et procédé de division d'une pile de feuilles en rames d'un nombre de feuilles prédéterminé Download PDF

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Publication number
EP1264792B1
EP1264792B1 EP20010710027 EP01710027A EP1264792B1 EP 1264792 B1 EP1264792 B1 EP 1264792B1 EP 20010710027 EP20010710027 EP 20010710027 EP 01710027 A EP01710027 A EP 01710027A EP 1264792 B1 EP1264792 B1 EP 1264792B1
Authority
EP
European Patent Office
Prior art keywords
stack
ream
blade
gripper
sheets
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.)
Expired - Lifetime
Application number
EP20010710027
Other languages
German (de)
English (en)
Other versions
EP1264792A1 (fr
Inventor
Fausto Pizzi
Nicola Corregiari
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.)
Bielomatik Leuze GmbH and Co KG
Original Assignee
Bielomatik Leuze GmbH and Co KG
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 Bielomatik Leuze GmbH and Co KG filed Critical Bielomatik Leuze GmbH and Co KG
Priority to EP04020937A priority Critical patent/EP1484270B1/fr
Priority to ES01710027T priority patent/ES2269336T3/es
Priority to DE50110700T priority patent/DE50110700D1/de
Priority to ES04020937T priority patent/ES2349734T3/es
Priority to DE50115596T priority patent/DE50115596D1/de
Priority to EP20010710027 priority patent/EP1264792B1/fr
Publication of EP1264792A1 publication Critical patent/EP1264792A1/fr
Application granted granted Critical
Publication of EP1264792B1 publication Critical patent/EP1264792B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H3/00—Separating articles from piles
    • B65H3/32—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile
    • B65H3/322—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile for separating a part of the pile, i.e. several articles at once
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H83/00—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such
    • B65H83/02—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such performed on the same pile or stack
    • B65H83/025—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such performed on the same pile or stack onto and from the same side of the pile or stack
    • 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
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4223—Pressing piles
    • 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
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4224—Gripping piles, sets or stacks of articles
    • B65H2301/42242—Gripping piles, sets or stacks of articles by acting on the outermost articles of the pile for clamping the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/50—Gripping means
    • B65H2405/52—Gripping means reciprocating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/30—Numbers, e.g. of windings or rotations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/51—Diminishing, minimizing or reducing entities relating to handled material
    • B65H2601/511—Waste of handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/182—Piled package
    • B65H2701/1826—Arrangement of sheets

Definitions

  • the invention relates to an apparatus and method for subdividing a stack of sheets into giants of predetermined number of sheets.
  • stacking and palletizing of these cut sheets often occurs after the production of cut sheets.
  • individual giant In the further processing of these single sheets then individual giant must be generated, containing the most possible number of sheets a predetermined number of sheets.
  • Typical giant sizes are, for example, in the range of 50 to 500 leaves.
  • paper of certain quality (usually in terms of weight per square meter of paper) has a uniform thickness. Paper stacks of the same quality differ in height from each other only if there are air gaps between individual sheets. Therefore, it is known for stacking of stacks of paper to compress the paper on one side with a certain surface pressure, which is reliably the same stack height with the same number of sheets and paper quality. To discard a Rieses predetermined number of sheets is then inserted in the predetermined number of sheets corresponding height of the upper edge of the paper stack in the paper stack and thus separated the Ries lying predetermined number of sheets from the remaining remaining stack.
  • this method has the disadvantage that it is necessary for the correct determination of the height of the paper stack on the one hand to bring a high surface pressure in the paper stack at the puncture, on the other hand with the increasing surface pressure but the risk of piercing at least one of the leaves in the puncture area to damage.
  • DE-A-26 39 676 describes a device for feeding a Rundstapelbogenanlegers, in which a partial stack is separated from a total stack, that a rotatable roller is pressed obliquely from below against a stack edge and thus separates the overlying stacking part. Thereafter, a gripper seizes the separated part of the stack and transports it.
  • DE-A-38 35 032 describes a method and an apparatus for unstacking blanks stacked in blocks on pallets. Each block consists of an already finished number of blanks lying on a base. In this respect, this method is similar to the previously described with marker strips.
  • a gripper has as pliers lower part a plate which moves above the base, and as a pliers upper part a holding punch and another, from the removal side forth remote plunger.
  • EP-B-0 743 919 a method and an apparatus for dividing a pile of sheets into giant become known, in which a stop on the gripper facing upper edge of a stack rests under the weight of a balance parallelogram. There is a knife that cuts into the stack so loaded and creates space for an L-shaped profile that belongs to a removal system.
  • the object of the invention is to provide a device for dividing a stack of sheets in single giant given size, by means of both an accurate determination of the number of sheets and a largely damage-free unstacking can be made.
  • a stack of sheets is divided into single giant predetermined number of sheets, including a gripper is provided.
  • the gripper has a first pressure pad for generating a predeterminable surface pressure in the stack to be split. He also has a sword for piercing the stack to be split at a predetermined height from the top of the stack.
  • a gripping tongs for handling the segregated ream is provided.
  • the gripper consists on the one hand of a fork as a lower, insertable into the stack part and on the other hand from a pliers shell for clamped holding the ream between the fork and pliers shell.
  • a second Anpresskissen provided in addition to the first Anpresskissen acting on the piercing side of the stack of sheets.
  • the second Anpresskissen used to generate a pressure in the pile must be increased by the attack side, so the piercing, side facing away from the stack.
  • the sword is the Anschnäbeln, so the piercing with less - for example, in the range of less than 3mm lying - penetration depth of the sword tip in the stack.
  • a pull bar On the gripper, a pull bar is provided, wherein the pull bar designed vertically movable and beyond is designed so that it at the latest with the gripper facing side of the stack of sheets comes into contact when the paper stack is marnäbelt the sword. Moreover, it is advantageous if the pull bar has a friction surface on its side facing the stack, the front side.
  • the Friction surface can be formed in particular in the form of a rubber coating or a rubberized layer.
  • the pull bar is used by a vertically upward moving away movement when the pull bar is in lateral contact with the paper stack to pull the ream secreted by the sword upwards.
  • the pull bar of the discharge of the weight of the paper of the sword of the overlying ream serves.
  • the corresponding pressure pad must be moved away from the paper stack - upwards.
  • a second Anpresskissen ensures that the unilaterally raised leaves from the stack can not slip backwards.
  • the pulling up of the ream to be discarded by the pull bar makes it possible to insert the sword over the entire length into the paper stack almost without load.
  • the sword can then serve to reliably push up the ream and serve the distance between the rejected ream and the now remaining upper edge of the rest of the pile.
  • a sufficient gap for the insertion of a fork of a gripping tongs is created.
  • the fork is used to segregate and gripping the ridge lying above the sword.
  • the sword is arranged vertically movable relative to the fork for this purpose.
  • Embodiments are preferred in which both the piercing or biting of the paper stack by the sword, as well as the insertion of the sword in the paper stack and the retraction of the fork in the space created by the sword in a horizontal movement takes place at right angles to the gripper facing side of the Stack is aligned.
  • the sword and fork are independently movable horizontally.
  • the sword consists of a forward projecting, the stack facing flat blade.
  • the fork is preferably designed so that projecting tines are provided on the stack.
  • a paper stack can be divided into single giant by a method according to the invention.
  • a method according to the invention comprises the method steps according to the independent claim.
  • a defined pressure is generated by means of a first pressure pad on the front upper side of the stack, which faces the gripper.
  • a second Anpresskissens is also on the rear upper side of the stack, which faces away from the gripper, a defined pressure in the stack produced.
  • the gripper is moved to its working position with respect to the stack. It is located in close proximity to the front of the stack facing it.
  • the sword of the gripper At a distance from the top of the stack is the sword of the gripper. The distance is determined so that it corresponds to the stack height of the predetermined number of sheets of the sheet type contained in the stack at the pressure generated by the first Anpresskissen. The sword then performs a horizontal feed motion at this distance from the top of the stack.
  • the length of the vertical feed motion is determined so that the Sword stabs the stack, ie that the sword penetrates only slightly into the stack. After this first slight prick of the paper stack at the point where the stack is divided into the remainder stack and the ream to be discarded, the first pressure pad is lifted off the stack. On the front side of the stack, there is no more pressure in the stack, which goes beyond the burden of the own weight of the leaves of the rejected Rieses. Only after this relief, the sword is completely inserted into the stack. Subsequently, by a vertical lifting movement of the sword, the rejected ream of predetermined number of sheets lying above the sword is raised.
  • a Ziehelf is brought into contact with the gripper facing the front of the paper stack after the beaking of the paper stack by the sword.
  • the pull bar is to be regarded as part of the gripper.
  • the pull bar is then on the side of the paper stack, with a defined contact force can be specified.
  • the contact force is chosen so that damage to the leaves does not occur by pressing in at the contact point.
  • This measure is used for further weight relief before the complete insertion of the sword in the paper stack at the specified location. It is sufficient if at least the majority of the leaves above the sword is raised. A certain residual part of the ream to be discarded can continue to rest on the sword with its weight. For this reason, it is advantageous if the pull bar is moved so that it only comes into contact with the stack above the sword.
  • the sword remains in abutment with the remaining stack until the scrap to be discarded is removed from the stack.
  • the reaming-out ream is moved away from the stack to the rear, as seen from the attack side of the gripper.
  • the lifting device is preferably designed so that after each removal of a ream, a lifting of the paper stack takes place, wherein the lifting takes place just to the extent that corresponds to the height of the rejected Rieses. This ensures that the top edge of the paper stack is at the same height before the beginning of each throwing out a ream from the paper stack.
  • a lifting device and the gripper (40) may be formed so that it is adapted to compensate for the decreasing height of the paper stack in the course of successively separating giants from the stack. This can be done in particular by appropriate traversing devices.
  • FIGS. 1 to 6 show an apparatus according to the invention for dividing a stack of sheets into a ream having a predetermined number of sheets and a remainder stack.
  • a side view and a plan view of the device according to the invention are shown in FIGS. 1 to 6.
  • Figs. 7 to 17 also show a Device according to the invention, but has been supplemented with respect to the device according to FIGS. 1 to 6 to corresponding device components, which are required for a first embodiment for the treatment of residual giants.
  • Figs. 18 to 25 a modification showing a second embodiment for treating the residual giant in different phases is set forth.
  • FIGS. 7 to 25 only show either the side view or the top view in each case.
  • the device consists essentially of the same components as the device according to FIGS. 1 to 6.
  • FIGS. 1 to 6 a device according to FIGS. 1 to 6 will first be described. Subsequently, with reference to FIGS. 1 to 6, the process flow of a method for rejecting a ream from a stack of sheets according to the invention will be explained. Thereafter, the respective method for treating a residual giant will be explained with reference to FIGS. 7 to 17 and 18 to 25. In this context, then the representational changes and additions to the device according to FIGS. 1 to 6 are set forth.
  • the embodiments shown in FIGS. 7 to 25 are each only preferred examples of correspondingly suitable devices. In particular, other devices may also be suitable for carrying out the process according to the invention for treating residual giants.
  • FIGS. 1 to 6 show a device according to the invention for separating out a ream of predeterminable number of sheets from a stack of sheets.
  • the device consists of a multiple-part gripper 30.
  • the gripper 30 is actually more of a gripping device and has many partially independently movable in at least one traversing subunits.
  • the common base of the subunits of the gripper 30 forms the carrier 31, to which all subunits of the gripper 30 are attached and opposite to this these are partially movable in at least one direction.
  • the stack 83 of sheets is provided.
  • the gripper 30 is formed from a carrier 31, protrude from the various parts.
  • the first Anpreßkissen 32 is provided that is arranged vertically movable with the top of the stack of sheets on the front attack side of the gripper 30 for this purpose.
  • the second Anpreßkissen 33 is provided in the region of the opposite, rear end of the stack 83. This is also held at least vertically movable on the support 31, so that regardless of the position of the upper edge of the stack 83 of sheets, the Anpreßkissen can be brought into contact with the top of the leaves.
  • a conveyor belt is arranged on the rear, the attack side of the gripper 30 side facing away, which serves to receive the rejected giant.
  • the sword 35 punctures the predetermined height into the stack of leaves by the number of leaves which a ream is to contain.
  • Fig. 1 it is shown how the sword 35 is located with its corresponding actuator in a position immediately in front of the front edge of the stack 83.
  • the pull bar 39 extends upward.
  • the pull bar 39 has a friction surface 38, which faces the stack 83.
  • the friction surface 38 can be both a serrated profile have, as well as be made by correspondingly soft material, such as rubber, so as to allow a strong rubbing conditioning of the pull bar on the front edge of the stack 83 above the sword 35.
  • the pull bar 39 is vertically movable relative to the stack 83.
  • the gripping tongs 40 are arranged on the carrier 31.
  • the gripper 40 consists of two relatively vertically movable parts.
  • the fork 41 which can retract into a gap between the Constellden ream 90 and the remaining remainder stack 92 and the pliers shell 42.
  • the fork 41 two prongs 43, one prong 43 can on each side of the sword 35 in the Stack to be retracted.
  • a hold-down 45 is also formed.
  • the hold-down 45 is likewise arranged on the carrier 31 and can be retracted by a horizontal feed movement with its two contact surfaces 46 into the intermediate space between the ream 90 to be discarded and the remaining remainder stack 92.
  • the contact surfaces 46 engage in each case between the sword and a prong 43 of the fork 41 in the intermediate space, as can be seen from the lower, drawn as a top half of the picture.
  • Fig. 1 the situation is shown as it is given at the beginning of a screening process.
  • the first and second nip pads 32 and 33 are brought downwardly in vertical abutment with the top edge 84 of the stack 83.
  • the sword 35 is located with its sword tip immediately in front of the facing front of the stack 83. The sword is at such a vertical distance from the top edge 84 of the stack that in height above the sword is the appropriate number of leaves, which forms a ream to be discarded.
  • the pull bar 39 In the immediate vicinity of the front of the stack 83 is also the pull bar 39 with its stack facing friction surface 38. In this case, the lower edge of the pull bar 39 is slightly above the sword 35. In a corresponding vertical position, but horizontally further away from the front of the stack is the hold-down 45 with its contact surfaces 46 and the fork 41 of the grasping forceps 40 with the tines 43 in engagement level ready.
  • the sword 35 stings the stack 83.
  • the sword with its sword tip penetrates only slightly, i. usually only a few millimeters, preferably for example, about 2 to 3mm in the stack. This situation is shown in FIG. 2.
  • the pull bar 39 is located with its friction surface 38 in contact with the front edge of the ridge 90.
  • the first Anpresskissen 32 is moved away vertically upwards. Thereby, the pressure generated by the first Anpresskissen 32 at the front of the stack is released. Furthermore, the pull bar 39 located in abutment with the front of the stack is moved vertically upwards. By frictionally given at the pull bar attachment at least one Part of the leaves of the ream 90, these are raised at the front of the stack by the movement of the pull bar 39 and are no longer in contact with the remaining remaining part of the ream and the remainder of stack 92. This is true only for the front of the leaves, as at the rear side of the stack continues to produce the surface pressure.
  • the second Anpresskissen 33 is still in proper contact with the stack 83, consisting of the remaining stack 92 and the Vogelenburgden ream 90.
  • the leaves of the ream 90 by the one-sided lifting against each other and thereby move the alignment of the Leaves on top of each other, as originally given in the stack, is dissolved.
  • air outlet nozzles 37 are provided on the sword, in particular at the tip of the blade of the sword, is blown through the air between the bottom sheet of Medicare Congressden ream and the top sheet of the remaining rest stack 92. In this way, a slight air cushion can be generated, so that the sword 35 can penetrate into the stack 83 with almost no friction and thus further defines the separation between the ream 90 to be discarded and the remaining stack 92 remaining. Following this, the ream 90 is separated from the remaining stack 92 by horizontal movement of the sword upwards at the insertion side and a gap 86 is created. The situation reached after these processes is shown in FIG.
  • the grasping forceps 40 are initially moved horizontally into the engagement position on the stack 83.
  • the fork 41 with its prongs 43 penetrates into the intermediate space 86 between the residual stack 92 and the ream 90 to be discarded.
  • the pliers upper part 42 is located in a position above the upper edge of the ream 90.
  • the hold-down 45 is retracted with its contact surfaces in the intermediate space 86.
  • the hold-down device is first lowered by a vertical method so that it rests on the upper edge of the remaining rest stack 92 with a predeterminable contact force. Thereafter, the sword 35 is first moved by vertical lowering so far that the leaves of the ream 90 rest on the fork 41 of the grasping forceps 40. Subsequently, the sword 35 is pulled by horizontal process from the stack. It is now in a horizontal position in front of the front edge of the stack 83.
  • the fork 41 is located immediately above the upper edge of the remaining stack 92 and the lower edge of the ridge 90 is only slightly removed from the upper edge of the remaining stack 92.
  • the second pressure pad 33 is still resting on the stack 83, which is formed from the remaining stack 92 and the ream 90.
  • the forceps upper part 42 is lowered so far by a vertical feed movement until it rests with defined contact force on the top of the ridge 90.
  • the remaining stack 92 is fixed by the hold-down 45 in its position, while 40 passes through a horizontal method of gripping tongs the Subscriberde ream back from the stack on the conveyor belt 85. This situation is shown in FIG. 6.
  • the grasping forceps 40 opens and these can now be moved back to their starting position shown in FIG. 1 backwards. Also, the hold-down 45 can now be lifted from the front end of now the stack 83 forming residual stack 92 and then back to the position shown in FIG. 1 - in the picture to the right, so seen in the stacking direction forward - are moved away.
  • the initial position shown in FIG. 1 is then achieved again by bringing the first and second pressure pads 32 and 33 into contact with the upper edge of the stack 83. In this way, the exact position of the upper edge with respect to the stationary carrier 31 can be determined.
  • the sword 35, the hold-down 45 and the grasping forceps 40 must be aligned vertically with respect to the upper edge of the stack 83.
  • the detection of the position of the upper edge can be carried out so that the position of the first Anpreßkissens 32 is detected and the other parts of the gripper are aligned vertically with respect to this position.
  • the place of delivery 80 of the stack 83 is on a lifting table. By lifting the lift table to the extent of the height of a ream to be eliminated ensuring that the vertical position of the top of the stack remains constant.
  • FIGS. 7 to 17 show various snapshots from a process for treating residual giants 91, particularly in connection with an apparatus and a method for splitting a stack of sheets into giants of predetermined number of sheets as shown in FIGS. 1 to 6 Can be used.
  • the implementation of a method according to FIGS. 7 to 17 with the procedure described below is not necessarily a method as has been described with reference to FIGS. 1 to 6, or a Entstaplervoriques, as shown in Figs to 6 has been bound.
  • a de-stacking device according to FIGS. 1 to 6 is present.
  • the situation shown in FIG. 7 corresponds approximately to the situation, as shown in FIG. 5.
  • One essential difference is that the ream held in gripping tongs 40 is a residue 91.
  • a residue 91 differs from the other giants to be discarded in that it no longer contains the desired, predetermined number of leaves to contain a ream 90 to be discarded.
  • the situation of FIG. 7 differs from FIG. 5 in that the sword 35 has been inserted below the last sheet of the stack 83, which at the beginning of the puncturing process consisted only of the remaining ream. Otherwise, the process of grasping the residual giant 92 need not be different from grasping another ream 90.
  • the residue has been grasped as well as a complete ream by means of the gripping tongs and is therefore manipulated.
  • the conveyor belt moves at its conveying speed - this corresponds to the feed speed of the gripping tongs 40 - on. It takes up the Restries 92 at least partially.
  • FIG. 8 If this position of the gripping tongs 40 shown in FIG. 8 is reached, the conveyor belt 85 is stopped.
  • the Restries 92 is still held by the grasping forceps 40, but is largely predominantly on the stationary conveyor belt 85.
  • the Restries 92 is no longer in contact with the pallet 79, on which the stack 83 was originally stacked and was brought to the place of delivery.
  • the pallet 79 stands on a not shown in the drawing lift table. By moving the lift table down, the pallet 79 is taken away. Below the hold-down 45 and the sword 35 now creates the free space to provide a new stack 93 at the point of deployment 80. This situation is shown in FIG. 9. In order to achieve the situation illustrated in FIG. 10, the new stack 93 has been brought to the delivery site 80 on a new pallet 79.
  • the lift table which is not shown explicitly in the drawing, is then moved again so that the upper edge of the new stack 93 lies at least approximately in the plane of the conveyor belt 85.
  • the hold-down 45 comes with its contact surfaces 46 in abutment with the top sheet of the new stack 93.
  • the system is such that a certain surface pressure in the stack on the side of the blank holder is generated and therefore the leaves of the stack 93 against horizontal Move are kept secured.
  • the sword 35 is in a position outside of the new stack 93. Now restrained in the gripping tongs 40 Restries 91 is stacked on the new stack 93. This Aufstapelvorgang is partially completed in the snapshot shown in Fig. 11. The gripper 40 is moved horizontally forward in the direction of the new stack 93. For this purpose, in order to support the Umstapelvorgangs and to avoid damage to the paper on the surface, a simultaneous process of the conveyor belt 85 in the appropriate direction.
  • the movement of the conveyor belt 85 preferably takes place synchronously with the method of the gripping tongs 40 so that there is no relative movement of the surface of the conveyor belt 85 to the bottommost sheet of the ream 90 or residual ridge 91 to be discarded.
  • Fig. 12 is located after completion of the movement of the grasping forceps 40 Restries 91 on top of the new stack 93 resting, with a possible alignment of the leaves of the rest giant 92 is given to the leaves of the new stack 92.
  • the Restries 91 is still held in the grasping forceps 40 at the front of the stack or the Restrieses 91.
  • the sword 35 is retracted into the gap 86 between the Restries 91 and the new stack 93. As far as air outlet nozzles are present in the sword 35, now air can be blown into the gap.
  • the gripper 40 is opened. This is done in particular by the fact that the fork 41 of the gripper 40 is moved vertically downwards and thus the upper fork edge passes below the level of the sword 35. Subsequently, the gripper 40 is in a Move position outside the range of the new stack 93.
  • the Restries is now on the one hand on the new stack 93 and on the other hand slightly on the sword 35 on.
  • the bearing force is optionally reduced by the injected air at the outlet nozzles of the sword blown air.
  • the sword is moved away to the front, ie his sword leading edge passes outside the engagement area with the new stack 93 and the Restries 91. Now so is the Restries, which can distinguish it from the rest of the new stack 93 in FIGS. 12 and 13 hatched is completely on the new stack 93 provided at the point of delivery 80.
  • a method for gripping a ream to be discarded proceeds, as has been described, for example, in connection with FIGS. 1 to 5.
  • a ream 90 to be discarded which consists of a residue 91 and leaves of the new stack 93, is grasped by the grasping forceps 40.
  • the ream 90 to be discarded consists of two subareas, to a region 91 shown hatched and, on the other hand, a region not shown hatched, which consists of leaves of the new stack 93.
  • the ream to be discarded is gripped by the grasping forceps and ready to be driven away from the stack.
  • the new stack 93 has been raised so far that the lower edge of the reamingianaconomden is approximately equal to the conveyor belt 85.
  • the hold-down 45 has been retracted into the intermediate space 86 between the ream to be discarded and the remaining remainder stack 92, it is not yet located on the surface of the remainder stack 92.
  • the blank holder 45 is brought into abutment with the upper edge of the remaining stack 92 so that the sheets are held immovable in the vertical direction.
  • FIG. 15 shows a situation in which the scrap 90 to be discarded partially rests on the conveyor belt 85.
  • FIG. 16 The situation shown in FIG. 16 as a side view is shown in FIG. 17 as a plan view.
  • the Ries to be discarded was placed on the conveyor belt 85.
  • the now open grasping forceps 40 is moved back toward its starting position to the front end of the stack 83 back. This movement takes place by a method along the carrier 31.
  • the leading edge of the ream 90 comes into abutment with the stop bar 60, which was retracted into the travel path of the ream 90.
  • this stop bar 60 may be part of a further gripping device 62, which grips the ream 90 and further manipulated.
  • a cleanly aligned trained Ries 90 is ensured.
  • This ream 90 can now, for example, as shown in FIGS. 16 and 17, be gripped by means of a gripping device 62 and then further conveyed.
  • the alignment of a ream 90 is only required if this ream consists of two sub-giants, which originally come from different stacks of paper.
  • FIG. 18 to 25 show an alternative embodiment of a method for the treatment of residual giants 91.
  • the situation of FIG. 18 corresponds to the situation according to FIG. 7. It is in the embodiment according to FIG. 18 as a difference from the embodiment according to FIG Fig. 7 only given no conveyor belt 85.
  • the tasks of the conveyor belt, in particular the interim holding the Restrieses 91 is taken over by a gripping device 62, as will be explained below.
  • the Restries 91 is moved by means of grasping forceps 40 so that the first running away from the pallet 79 end of Restrieses 91 a stop bar 60, which is part of the gripping device 62 reaches. Once this stop bar 60 has been reached, the conveying movement of the Restrieses 91 is interrupted. By means of a corresponding punch 63 of a gripping device 62, the remote from the gripping jaw 40 end of Restrieses 91 is also held as clamping, as the other end in the gripper 40 clamped between the fork 41 and upper tongs 42 is clamped. This situation is shown in FIG. 19. Now, as shown in Fig.
  • Fig. 21 shows the situation in which a new stack 93 has been provided on a new pallet 79 at the place of delivery and has been moved so far upwards by means of the lifting table that the upper edge of the new stack 93 is at the desired position, directly below the residual ridge 91 comes to rest.
  • Fig. 21 thus corresponds to the situation as given in Fig. 10 of the previous method.
  • the residue giant 91 is brought into a position above the new stack 93.
  • the clamping position of the gripping tongs 40 facing away from the end of the residual giant 91 in the gripping device 62 is first released and then pulled over by the gripping device 40, the Restries on the new stack 93.
  • a pressure in the new stack 93 is generated, which prevents vertical displacement of the leaves during this Umsetzdoch.
  • the transition from the situation illustrated in FIG. 22 to the situation illustrated in FIG. 23 corresponds to the sequences in FIG Transition between the situation in Fig. 12 and Fig. 13.
  • the Restries 91 is first stored on the sword 35, then the fork 41 of the grasping forceps 40 is moved out and then the sword 35 pulled out. Then the Restries 91 is as flush as possible on the new stack 93.
  • FIG. 24 illustrates the situation that presents itself when a ream 90 has been separated and grasped by the new stack and the residual ridge 91 deposited thereon. This can be done, for example, according to the procedure shown in FIGS. 1 to 6, wherein in FIG. 24, the situation, as it corresponds to FIG. 5, is shown in the drawing.
  • the proportion of the residual giant 91 is shown by hatched representation of the residual giant.
  • the non-hatched portion of the ream corresponds to the leaves of the new stack 93.
  • the ream 90 was grasped by the grasping forceps 40 and is held between the fork 41 and the forceps top 42.
  • the gripping tongs 40 by moving the gripping tongs 40 over the remaining stack 92, the scrap to be discarded is pushed away from the remaining stack 92.
  • the transport movement is initially interrupted and the end of the ream 90 facing away from the grasping forceps 40 in the gripping device 62 is clamped by lowering a corresponding ram.
  • the gripping device 62 is an alternative manipulation unit to the conveyor belt 85, as was drawn in Figs. 1-17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (16)

  1. Dispositif de division d'une pile (83) de feuilles en rames individuelles (90) d'un nombre de feuilles prédéterminé, avec un organe de préhension (30) avec une griffe (40) présentant une partie inférieure (41) et une partie supérieure (42), et avec un moyen pour séparer de la pile (83) une rame (90) d'une hauteur prédéterminée,
    caractérisé en ce que
    l'organe de préhension (30) présente un premier coussinet de pression (32) séparé de la partie supérieure de griffe (42) et destiné à générer une pression définie sur la pile à diviser (83) du côté de l'organe de préhension,
    et que sont prévus comme moyen de séparation une lame (35) destinée à pénétrer dans la pile à diviser (83) à une hauteur prédéterminée par rapport au bord supérieur de la pile,
    et un second coussinet de pression (33) destiné à générer une pression sur la pile à diviser (83) en agissant du côté de la pile (83) opposé à la zone d'action de l'organe de préhension (30), sachant qu'est prévue une barre de traction (39) mobile dans le sens vertical qui vient s'appuyer sur la pile de feuilles (83) au-dessus de la lame après la pénétration de la lame (35) dans la pile de feuilles (83).
  2. Dispositif selon la revendication 1, caractérisé en ce que la lame (35) est destinée à pénétrer dans la pile (83) en générant une pression prédéterminée.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la barre de traction (39) présente sur son côté orienté vers la pile (83) une surface de friction (38), en particulier caoutchouté.
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la partie inférieure de griffe (41) est une fourche (41).
  5. Dispositif selon la revendication 4, caractérisé en ce que la lame (35) est disposée de façon mobile dans le sens vertical par rapport à la fourche (41).
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que la lame (35) et la fourche (41) peuvent être déplacées dans le sens horizontal perpendiculairement au flanc de la pile (83) orienté vers elles.
  7. Dispositif selon la revendication 6, caractérisé en ce que la lame (35) et la fourche (41) peuvent être déplacées dans le sens horizontal indépendamment l'une de l'autre.
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la lame (35) est une lame plate orientée vers l'avant, vers la pile (83), sachant que de préférence la lame présente dans son intérieur des conduits d'air qui débouchent dans des sorties d'air prévues latéralement sur la lame et en particulier dans la zone de la pointe de la lame, et que de l'air peut être insufflé à travers les conduits et les sorties d'air dans la zone de pénétration de la lame (35) dans la pile de feuilles (83).
  9. Dispositif selon l'une des revendications 4 à 8, caractérisé en ce que la fourche (41) présente au moins deux pointes s'étendant en direction de la pile (83), sachant en particulier qu'au moins une pointe est prévue de chaque côté de la lame (35).
  10. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'est prévu un presseur (45), sachant que le presseur (45) peut être introduit dans l'espace intermédiaire entre la rame (90) maintenue dans la griffe (40) et le bord supérieur du reste de la pile (83), et qu'au moyen duquel peut être générée une pression superficielle prédéfinissable sur le reste de la pile (83) du côté de l'organe de préhension.
  11. Procédé de division d'une pile de feuilles (83) en rames individuelles (90) d'un nombre de feuilles prédetérminé, sachant qu'une rame est séparée sur un bord de la pile (83) et est ensuite saisie par un organe de préhension (30) présentant une partie supérieure de griffe (42) et une partie inférieure de griffe (41), et que l'organe de préhension est amené contre la pile puis retire de la pile la rame (90) maintenue dans sa griffe (40),
    caractérisé en ce
    qu'une pression définie est générée sur la pile (83) du côté de l'organe de préhension (40) par un premier coussinet de pression (32),
    qu'une pression définie est générée sur le côté de la pile (83) opposé à l'organe de préhension (30) par un second coussinet de pression (33),
    que pour séparer la rame (90), une lame (35) de l'organe de préhension (30) située à une distance d'un bord supérieur de la pile correspondant au nombre de feuilles prédéterminé d'une rame, pénètre par un mouvement d'avance avec sa pointe dans la pile à la distance correspondante,
    que le premier coussinet de pression (32) est relevé de la pile,
    que la lame (35) pénètre entièrement dans la pile, puis, par un mouvement ascendant vertical, soulève du côté de pénétration de la lame la rame (90) d'un nombre de feuilles prédéterminé formée au-dessus de la lame (35),
    que la partie inférieure de griffe (41) s'introduit dans l'espace intermédiaire créé par le soulèvement unilatéral de la rame (90), et que la rame (90) est maintenue par serrage entre les parties supérieure et inférieure de griffe (42, 41),
    que le second coussinet de pression (33) est dégagé de la pile avant que l'organe de préhension (30) retire la rame maintenue dans la griffe,
    sachant qu'au plus tard après la pénétration de la lame (35) dans la pile (83), une barre de traction (39) entre en contact avec le flanc de la pile de feuilles (83) au-dessus de la lame, et que les feuilles de la rame (90) à séparer sont soulevées du côté de pénétration de la lame (35) par un mouvement vertical ascendant de la barre de traction (39).
  12. Procédé selon la revendication 11, caractérisé en ce qu'après l'introduction dans l'espace intermédiaire ainsi créé de la fourche formant la partie inférieure de griffe (41), la lame (35) est abaissée par un mouvement vertical dans une position dans laquelle le bord supérieur de la lame est situé au-dessous des pointes de la fourche (41).
  13. Procédé selon l'une des revendications 11 ou 12, caractérisé en ce que dans l'espace intermédiaire entre le reste de la pile (92) et la rame (90) maintenue dans la griffe (40) peut être introduit un presseur (45) qui peut être amené à prendre appui avec une force définie sur le bord supérieur du reste de la pile (92).
  14. Procédé selon la revendication 13, caractérisé en ce que la lame (35) et/ou le presseur s'appuie(nt) sur le reste de la pile (92) avec une force définie jusqu'à ce que la rame à séparer soit retirée du reste de la pile (92).
  15. Procédé selon l'une des revendications 11 à 14, caractérisé en ce que, vu du côté de la zone d'action de l'organe de préhension (30), la rame à séparer (90) est retirée de la pile (83) vers l'arrière.
  16. Procédé selon l'une des revendications 11 à 15, caractérisé en ce que la pile de feuilles (83) est disposée sur un dispositif de levage, sachant qu'après chaque retrait d'une rame (90) séparée, a lieu un ajustement en hauteur du bord supérieur de la pile (83) mise à disposition, de manière telle que le bord supérieur de la pile (83) se trouve à une hauteur prédéterminée.
EP20010710027 2001-06-08 2001-06-08 Dispositif et procédé de division d'une pile de feuilles en rames d'un nombre de feuilles prédéterminé Expired - Lifetime EP1264792B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP04020937A EP1484270B1 (fr) 2001-06-08 2001-06-08 Dispositif et procédé de traitement ultérieur d'une rame résiduelle avec ménagement et sans déchets
ES01710027T ES2269336T3 (es) 2001-06-08 2001-06-08 Dispositivo y procedimiento para la subdivision de una pila de hojas en resmas de un numero de hojas predeterminado.
DE50110700T DE50110700D1 (de) 2001-06-08 2001-06-08 Vorrichtung and Verfahren zur Unterteilung eines Stapels von Blättern in Riese vorgegebener Blattzahl
ES04020937T ES2349734T3 (es) 2001-06-08 2001-06-08 Procedimiento y dispositivo para descomponer una pila en resmas.
DE50115596T DE50115596D1 (de) 2001-06-08 2001-06-08 Vorrichtung und Verfahren zur schonenden und abfallosen Weiterverarbeitung eines Restrieses
EP20010710027 EP1264792B1 (fr) 2001-06-08 2001-06-08 Dispositif et procédé de division d'une pile de feuilles en rames d'un nombre de feuilles prédéterminé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20010710027 EP1264792B1 (fr) 2001-06-08 2001-06-08 Dispositif et procédé de division d'une pile de feuilles en rames d'un nombre de feuilles prédéterminé

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP04020937A Division EP1484270B1 (fr) 2001-06-08 2001-06-08 Dispositif et procédé de traitement ultérieur d'une rame résiduelle avec ménagement et sans déchets

Publications (2)

Publication Number Publication Date
EP1264792A1 EP1264792A1 (fr) 2002-12-11
EP1264792B1 true EP1264792B1 (fr) 2006-08-09

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Family Applications (2)

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EP04020937A Expired - Lifetime EP1484270B1 (fr) 2001-06-08 2001-06-08 Dispositif et procédé de traitement ultérieur d'une rame résiduelle avec ménagement et sans déchets
EP20010710027 Expired - Lifetime EP1264792B1 (fr) 2001-06-08 2001-06-08 Dispositif et procédé de division d'une pile de feuilles en rames d'un nombre de feuilles prédéterminé

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EP04020937A Expired - Lifetime EP1484270B1 (fr) 2001-06-08 2001-06-08 Dispositif et procédé de traitement ultérieur d'une rame résiduelle avec ménagement et sans déchets

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Country Link
EP (2) EP1484270B1 (fr)
DE (2) DE50115596D1 (fr)
ES (2) ES2349734T3 (fr)

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Also Published As

Publication number Publication date
ES2269336T3 (es) 2007-04-01
EP1484270A3 (fr) 2005-01-05
EP1484270A2 (fr) 2004-12-08
DE50110700D1 (de) 2006-09-21
DE50115596D1 (de) 2010-09-23
EP1264792A1 (fr) 2002-12-11
EP1484270B1 (fr) 2010-08-11
ES2349734T3 (es) 2011-01-11

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