• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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  • 优先权
    • 专利摘要:
    A reproduction system for producing copies of a set of document sheets and a method of producing bound sets of copy sheets are disclosed. A very high speed, fully automated reproduction system is described having a document handling apparatus, copy sheet processor, and a finishing station. For very high reproduction rates, post-collation of copy sheets into copy sets is utilized. In this arrangement the document apparatus (12) is arranged to expose each document sheet of a document a predetermined number of times before a succeeding document sheet is brought into exposure position so that for each complete circulation of all the document sheets, the document would have been copied a number of times equal to said predetermined number. A sorter bin array (102) having a number of bins (104) equal to said predetermined number is arranged to collate the resultant copy sheets into corresponding copy sets. The copy sets are removed from the bin array for stapling and stacking or non-stapling and stacking (130).
    公开号:SU1366050A3
    申请号:SU813320777
    申请日:1981-08-20
    公开日:1988-01-07
    发明作者:Stefen A Rajnkhart；Dzhejms E Britt；Kennet V Laskovski；Dzhefri L Sisson
    申请人:Xerox Corp；
    IPC主号:
    专利说明:

    The invention relates to a multiplying technique and improves the performance of an electrostatic copying system. The copying system consists of a document processing unit, a copy processor and a post-processing unit. High copying speed is provided by the layout of copies in sets at the final stage of processing. The processor exposes each sheet of a document a certain number of times before the next sheet enters the exposure position. In each processing cycle of all sheets of a document, the document is copied as many times as each sheet is exposed. For the layout of the received copies in sets, a number of sorting trays are used, the number of which is equal to the number of exposures. Sets of copies are removed from a number of trays for fastening and stacking or for laying them loosely, 3 s. f-ly, 17 ill.
    Ιω
    | with
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    1 1366050 · 2
    The invention relates to the printing industry, in particular to the copying technique with devices for processing sheets.
    The purpose of the invention is to increase productivity.
    FIG. 1 is a schematic diagram of the system; in fig. 2 is a schematic diagram of the device for filing copies of documents, side view; in fig. 3 - sorting device for final processing of copies, isometric; in fig. 4 - sorting device with trays, side view; 15 in FIG. 5 shows the mechanism for transferring sets of copies, isometric, · in FIG. 6 set pusher, isometric; in fig. 7 is a schematic of the means of fastening sets; in fig. 8 - time dia. 20 grams of various synchronized stages of the post-processing cycle; in fig. 9-12 - sequence of stages of final processing of sets of documents with 25 odd number of sheets; in fig. 13-16 - the same, with an even number of sheets; in fig. 17 is a control block diagram of a copying system.
    The copying system contains a βθ processor 1 for reproducing the copied information on copy sheets, means for repeatedly exposing each copy sheet, including an exposition glass table 2, xerographic tape 3, an illumination system 4, a control 5. The copying system also contains a sorting device made in the form of a cassette 6 with trays 7 for dumping sheets produced by processor 1, and for arranging copies of different images in sets, means 8 for directing copies of sheets 1 produced by the processor to trays for collecting one sheet per a tray, a means 9 for fastening sets of copies, located below the point of receiving sheets in trays, a means 10 for receiving from the trays 7 unfolded sets of sheets of copies, while the means 5 controls are connected with the means of multiple expo by means of a means for fastening sets of copies and means 10 for receiving sets of sheets of copies. '
    In addition, the system includes means 11 for periodically feeding the cassette 6 with the trays 7, associated with the means 8 for guiding in the form of a pair of rollers issued by the processor 1 sheets of copies. Means 11 for 5 perio-periodic feed 11 cassette tray 7 comprises a vertical guide 12 to bias the cartridge in any direction vertically. The number of trays 7 of the cassette 6 of the sorting device is equal to the number of exposures.
    The device works as follows.
    As in all xerographic systems, the light image of the reproduced original is projected onto the sensitive surface of the xerographic photosensitive element, forming a latent electrostatic image on it. Then the latent image appears with the help of the material being painted, which forms a xerographic powder image corresponding to the latent image on the photosensitive surface. The powder image is electrostatically transferred to the recording material, for example, a sheet of paper, etc., on which it is fixed in a fixing device, after which the powder image remains attached to the surface of the recording material.
    The xerographic processor 1 is an autonomous unit, all nodes of which are located in a single package or chamber. The processor 1 contains a means for exposure in which the reproduced original is placed on the exposition glass table 2 for projection onto a photosensitive surface made in the form of a xerographic tape 3. The original, i.e. a set of individual sheets of the document, one sheet each is transferred by the device 13 for feeding documents to the table 2. After the specified number of exposures of each sheet of the document is completed, the sheet returns, superimposed on top of the stack of original sheets. This copies the entire set.
    Image-creating light reflected from each sheet of the document, 55 illuminated by a flash using a lighting system 4 with lamps 14, is projected onto a xerographic tape 3. The lamps are connected to a lighting chain (not shown), which
    3
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    controlled by the processor software device in a given time sequence in accordance with the program specified by the operator. Tape 3 is brought into constant motion by an engine (not shown) at the required speed. Hit on the tape 3 creating the image of the light from the document leads to the discharge of the photosensitive layer in the zone where the light falls. As a result, a hidden electrical image remains on the tape, corresponding to the light image projected from the document ·. As the tape 3 moves, the electrostatic latent image passes through the development unit, in which the developing device 15 is located to reveal the latent electrostatic image.
    After development, the powder image is placed in the image transfer unit 16, where the developed image is transferred to the surface of the base, usually on a sheet of copy paper taken from the main 17 or auxiliary 18 tray.
    Each sheet is fed to the transfer unit via a conveyor 19, which interacts with the sheet registration fingers 20 (only one is shown). The fingers 20 rotate counterclockwise, (FIG. 2), in contact with the leading edge of the sheet, and provide accurate synchronization and proper positioning of the sheet relative to the moving developed image on the tape 3, as well as synchrony with other processing steps.
    The sheet moves synchronously with the movement of the belt 3 and passes between the transfer roller 21 and the belt 3 in the transfer unit. After the transfer, the sheet of paper is separated from the belt 3 and transferred by the vacuum conveyor 22 in an inverted state to the fixing device 23, receiving the sheet of paper for fixing the powder on it. After fixing, the sheet is transferred to the finishing unit for bonding in sets of copies or for dividing into sets without binding.
    The system is controlled by the management software 5, which gives the operator the opportunity to select various modes: turn the whole system on or off, set up a copying system to get the required
    the number of copies of each sheet or set of sheets of the original, choose the type of copies received (one-sided or two-sided), select the desired distribution of copies at the output of the set or stack mode, with or without stapling, select one of a number of trays with paper, set the printing mode for the document (to one side of the paper, or both, the zoom scale), and select other desired characteristics. Software 5 has a controller that provides on-line timing and synchronization of processor 1 and all its xerographic processing functions with automatic system management functions. The controller may contain any microprocessor having a central processing unit, and a master oscillator.
    Sheets of paper for copies are fed from the main tray 17 or an auxiliary tray 18. The main paper tray 17 has a support 24 lifting, on which a sheet of paper rests and which is adapted for automatic lifting and lowering by means of appropriate means (not shown) intended for maintaining the paper feed tape 25 in operative contact with the top sheet on the elevator 24. The tape 25 runs periodically, in a certain time ratio with obtaining images on the photosensitive tape 3, and serves to feed the ver it from the stack of paper sheet stock to the primary conveyor 19, the transfer paper.
    Auxiliary tray 18, located above the tray 17, has a lifting support 26, which can be located supply sheets. As in the main tray 17, lifting means (not shown) are provided for the supports 26 of the auxiliary tray 18 as the paper supply is used, so that the paper feed tape 27 is in operative contact with the top sheet. The paper feed tape 27, like the tape 15 of the main tray 17, periodically starts to move, moving one sheet at a time to the auxiliary paper transfer conveyor 28. Conveyor 28 is driven by a drive system (not shown).
    five
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    and is located so as to feed sheets, removed from the auxiliary tray 18, to the working area of the main coyveier 19 of the paper transfer. After that, the sheets from the auxiliary tray enter the transfer unit.
    To maintain the contact of the sheets with the auxiliary conveyor 28 during their movement along it, guides 29 are provided.
    In the case of one-sided copying, the duplicate sheets leaving processor 1 after turning on the fixing device 30 are fed to the exit slit 31 using conveyors 32 and 33. If the system operates in duplex copy mode, the copy sheets are sent to the auxiliary tray 18. In case of This mode of operation copies carried by the conveyor 32, intercepted by a diverter 34, adapted to move the sheet. When the diverter 34 performs the interrupt operation, the copies circle the roller 35 and enter the gap between this roller and the interacting roller 36. The rollers 35 and 36 push the sheet between the upper guide plate 37 and the lower guide plate 38 to the second pair of rollers 39 and 40, which moves the sheet further on the transfer mechanism 41 carrying the sheet to the auxiliary tray 18.
    After the required number of one-sided copies has been received and sent to tray 18, the paper feed mechanism from tray 17 can be turned off, and the paper feed mechanism from tray 18 is turned on. After rounding the roller 35 and passing between the rollers 39 and 40, the copies are turned over, i.e. in tray 18, the printed material is located on the top side of the sheets. After switching the system, sheets from tray 18 are passed through a copying machine using conveyor 27 and mechanism 28 to print on
    the clean side of the sheet in the same way. Ί
    If the system is set to double-sided copying, then after receiving a correspondingly programmed number of single-sided copies, switching the system leads to raising the stopper 42 sheets to the sheet path between the upper guide plate 37 and the lower guide plate 38. Feed roller 39
    mounted on top plate 37 and rises with it during the duplex copying phase. As a result, the feed roller 39 is retracted from the lower feed roller 40, so that sheets of paper passing between them are not pushed forward.
    The sheet stopper 42 is made of an annular elastic material that is sufficiently pliable to regain its round shape, which ensures that the sheet is inserted into the gap between the roller 36 and the interacting roller 35, and the trailing edge of the sheet is introduced by the roller 36 into the gap. The rollers 36 and 43 are made of high-friction material, for example foam polyurethane, which ensures reliable feeding of the sheet moving to the stopper 42 and reliable feeding of the sheet moving from the stopper against the adhesion force arising between two sheets that may be in the area of the inverter during their movement in opposite directions. The purpose of the stopper 42 and rollers 36 and 43 is to turn each sheet of the copy in duplex copy mode, so that the odd pages on the copy sheet fall into the output slit 31 face down,
    The device 13 (FIG. 2) feeds the sheets of the document through one of the spare device 44 sheets of the document to the copying position on the table 2, where one exposure is performed if one set of a copy is made, or several exposures. After one or several exposures, each sheet of the document is automatically returned.
    to the backup device 44, and the next sheet, if any, is fed to the exposure position on table 2. The sheets of the document returned to the stock stack can be re-submitted to the feeder 13 or can be removed by the user upon completion of the copy program. .
    The feeding device 13 has a supporting part 45, the lower end of which is hingedly mounted on the axis 46, and the same left and right trays 47. The trays 47 are ϋ-shaped in cross section and each has a base 48 and a notch in the upper part where the roller 49 is inserted filing. Width
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    trays can be adjusted on the axis 46 so as to fit documents of various sizes.
    The roller 49 is mounted for rotation on the shaft 50 under the support 45, so that part of the surface of the roller protrudes into the tray area with the document, for this purpose, a corresponding hole is provided in the support 45. The shaft 50 is driven by a permanently turned on motor 51 via a belt drive (not shown) in the direction indicated by the solid arrow. Solenoid clutch 52 synchronized in accordance with the program connects the engine 51 with the roller 49 according to a signal from the means 5 controls.
    Two restrictive rollers 53 and 54 are located behind the roller 49. and prevent the passage of more than one sheet of document at a time. The upper limit roller 53 is driven by the lower limit roller 54 as long as the friction between them exceeds a predetermined amount. In the case of reducing friction, what happens when two overlapping sheets are trying to pass through the rollers, the upper roller 53 is rotated in the direction of the sheet return, as shown by the dotted arrow, by means of driving means (not shown). The sheets of the document passing through the limiting rollers 53 and 54 are carried forward with the help of intermediate rollers under the curved guides.55 for the document onto the table conveyor 56, which, in turn, transfers the documents to the table 0 I
    On the inlet side of the table 2 is the stop 57, designed to align or install the fox. Coming document to the desired position on the table 2 for their exposure. The direction of movement of the conveyor belt 56 of the table is reversed after the sheet of the document passes by the stop 57. Changing the direction of the conveyor 56 serves to move the sheet back to the stop 57. After the exposure is completed, the conveyor 56 again reverses, removing the document from the table 2 in the opposite direction , the stop 57 for this is retracted using a tool (not shown). Guides
    Document fingers 58 deflect or layers control returns documents up into the nip of the first pair g GOVERNMENTAL return rollers 59 which carry the returning document sheet 60 between the return guide into the nip of the second pair of rollers 61 and return back to the trays 47,
    You want the return sheets 62 of the document to be separated from the sheets 63 waiting for submission, and to prevent the unwanted re-submission of the return sheets 62 by the primary 1g feed roller 49 after the last sheet of the original is fed, a movable separator rod 64 opposite the feed roller 49 is used. by him. Eraser 64 is suspended on a swinging transverse axis 65 pivotally mounted on the base frame of the device 13 for feeding document 62, the supporting part 45 of which has corresponding · 25 holes through which the levers 66 of the suspension of the separator pass. Provides a means for selective rotation (not shown) of the axis 65 and lifting the rod 64 from under the sheets 62 of the document resting on it, with the subsequent return of the rod 64 to the top sheet of the document. All the rollers described are driven by the engine 51 with the help of appropriate belt drives (not by 35
    cauldrons).
    The document feeder 13 comprises a document tray carrying a stack of sheets consisting of the sheets of the document in a specific sequence, with the first page at the bottom of the stack. Due to the fact that the device for processing a document has a feed at the bottom, the first page is the first copy sheet, etc.
    I
    In single-sided or double-sided mode of operation, the duplicate sheets leaving the fixing device are transferred 50 by conveyors 32 and 33 directly to the exit slit 31 located at one of the ends of the xerographic processor 1 housing. After the hz sheets of the slit 31 exit the sheets
    processing, which contains a sorting mechanism, fastening apparatus
    and output conveyor system.
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    After exiting the processor 1 (FIG. 1), each sheet is located on the conveyor 67 for further transfer along the horizontal plane to a fixed receiving point or node 68. The conveyor has a movable endless carrier belt 69 on which each sheet is placed and the row is free lying, but held - balls 70, with the possibility of rotation and pressed to the tape 69 by gravity. Their contact with the tape facilitates the movement of sheets between them. Tape 69 is driven by the engine with the appropriate gear and pulleys (not shown) with a speed slightly higher than the processing speed in processor 1, which provides an increase in the working space between the sheets. In this case, the final processing of sheets of copies does not reduce the throughput of the entire system, which is determined by the processing speed in the processor.
    The axis of the tape 69 is located at a small angle to the direction of movement of the sheets of copies. In this case, each sheet of the copy moves slightly towards the side stop, parallel and offset from the center line of the sheet insertion path. The sheet 71 (FIG. 3) is visible through the hole 72, made in the upper plate 73 of the transport device in the form of a conveyor 67. In this position, the sheets are arranged image down (one-way mode) or an odd page down (two-way mode), with the upper part of each sheet rests on the board.
    At the exit slit 31 is located, the switch 74 of contact with the sheet, located so that it is turned on when each sheet enters the conveyor 67 of the finishing device. The circuit closed by this switch is connected to the logic unit of the program block and serves for the initial installation of the generator, which synchronizes the processing, so that the time zero comes at the moment the sheet hits the reading point 68.
    , At the receiving point 68 there are two contacting transport rollers of the means 8 for direction, receiving each sheet of copy and directing this sheet to one of the trays 7
    sorting device. In the depicted version, this device contains twelve horizontal trays 7, vertically one above the other, this number corresponds to the number of exposures of each sheet of the document on the table 2. The number of baskets must be equal to the total number of sheets in the sheet path during the first cycle in two-sided mode, so that device steps did not result in passes. The number of exposures of each sheet of a document located on the table must also correspond to this total number of sheets, equal in this variant to twelve.
    The sorting device has the ability to move vertically in any direction within the fixed support frame 75. The sorting device in the initial position (Fig. 3) is located so that the lower tray 7 is opposite the gap between the rollers 88 at a fixed point 68.
    In the following, trays 7 are renumbered sequentially A, -A from bottom to top. The device has the ability to step shift up and down past the receiving end 76, which corresponds to the position of the sheet in the tray. When working in the copy set mode, the row of trays moves down one step and when each tray 7 is installed against point 68, the copy sheet is moved by the transport device 67 and rollers 8 introducing the sheet into tray 7. At the front edge of the tray, a sensor 77 can be installed, sending in the logic unit of the control means 5 a signal that this action has been performed and the next step can be carried out,
    Ί When the row reaches the lowest position and a copy is entered in the tray, the document supply device 13 has already removed a sheet of the document from which the copies were made from the table and placed the next sheet on the table. Since the processor 1 processes a series of images and copies are transferred by various transporting means, the change of the sheets of the document could have occurred much earlier than the moment when new copies began to be received in the sorting device.
    A number of trays 7 remains in the bottom polo1366050
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    until the first sheet of the copy of the next document in order is accepted in basket A, after which the row starts moving up and the copies are laid out as before. Such a step-by-step movement up and down, i.e. the sorting continues until each basket contains an ordered set of sheets of copies of the set of sheets of the document in the device 13 for feeding the document.
    Directly under the point 68 receiving sheets in trays 7 is a device for fastening sets, which is a double-bonding device. This machine has a means for removing complete ordered sets of copies from each subsequent tray so that, by making a single or double binding around the edge of the set, if provided for by the program, or leaving the sets loose, put the fixed or loose pieces on the lifting mechanism. To ensure complete removal of sets from all trays 7 of the sorting device, the row must be shifted twice relative to the discharge point of the sets. In the normal set processing mode, the sorting and post-processing device processes 12 sets at a time (a block of 12 sets of copies) in cooperation with the document feeder 13, which performs 12 consecutive exposures of each sheet of a document before proceeding to the next sheet, until the entire set has been copied. If it is planned to receive more than twelve sets of copies, then the products of the system document processing sorting - the final processing is grouped into blocks of 12 sets each. The system continues the sorting and automatic unloading in blocks of 12 sets, until the specified number of sets of copies is received. !
    G Sorting device. It has a side wall 78 and a rear wall 79, to which trays 7 are attached and which cover two adjacent sides!
    each tray. Front side of trays 7, i.e. the side facing the conveyor 67 is open for receiving sheets with copies, the side facing the operator is also open to allow the removal of .or sheets of the kit.
    The bottom of each tray has a cut 80,
    ® facilitating operator removal of sheets) The sorting device is driven in any direction vertically by a running ball screw 12 connected to the shaft of the servomotor 81 mounted on the base of the frame 75. These movements of the trays are caused by a ball slider 11 attached to the rear wall of the set
    1G trays 7, through the thread in which the screw 12 is passed. Rotation of the screw 12 (not having axial displacement) in any direction leads to a corresponding movement
    2 0 up and down the slider 11, and with it the row of trays 7.
    Each Tray 7 is provided with a presser mechanism that pulls the sheets into tray 7 and presses them against the inner sides of the rear wall 79 and the left wall 78 of tray 7 while the sheets are being sorted. The pressure nodes are the same. Each hold-down assembly 62 (FIG. 4) is installed close to
    30 of the angle formed by the rear and left walls, and contains a pressure roller 83, the axis of rotation of which is located at a certain angle to the rear wall, which provides a double-sided or angular stop. A clamp with a possibility of rotation is mounted on a stud 84, reinforced between the two ends of the brackets 85, located at close distances from each other, the other ends of which with the possibility of rotation are mounted on the stud 85, attached by a bracket 86 to the rear wall 82 of the sorting device, In such The device presses the gravity wheel to the bottom 87 of the tray 7 and rises slightly when introduced into the tray 7 of each sheet. When the stack of copy sheets 71 is assembled (FIG. 4), the roller 83 rises approximately to its highest position.
    about
    Each pressure roller 83 is provided with a pulley 88 coaxial with it, the same pulley 89 is attached to the friction drive wheel 90. On the pulleys 88
    and 89 wearing sync tape
    .91, reporting rotational motion
    the presser wheel 83, when the drive wheel 90 comes into rotation.
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    The flat plate 92 is also rotatably mounted on the stud 84, it is part of the bracket 93 and is directed towards the inner sides of the rear wall 79 and the side wall 78. This plate contributes to the appearance of a force perpendicular to the pressure wheel, and serves to prevent sheets from rolling. hit in tray 7.
    The drive wheels 90 of the pressing mechanism are mounted vertically, and their axes lie in a common plane, so that they can be driven by one drive wheel. Each drive wheel (FIG. 3) interacts with a notched drive wheel 94, 'when the corresponding tray is in the filling or receiving position of the sheet. The wheel '94 is driven by the engine 95, mounted on the frame 75 approximately in the center of the overall trajectory of displacement of a number of trays. This wheel is mounted in such a way that contact is made with each friction wheel 90 when the row is moved to the upper or lower position. In a device in which the pinch roller starts only when the corresponding tray is in the filling state, the wear on the roller is reduced and the quality problems of copies are eliminated. In addition, such a device is more economical and reliable than the mechanism in which separate pushers are used, and at the same time provides a more accurate stacking of copies. The side of the left wall 78, to which each sheet of the copy is pressed, is displaced, but parallel to the stop board in conveyor 67. When moving along the conveyor 67, each sheet is pressed to the board, and angular, i.e. two-sided, the pressing ensures the accuracy of laying required for high-quality bond sets. In the case of high-speed copying and processing, it is advisable to use a two-step one — coarse and precise — ·
    stacking copies to improve the alignment of the stack of sheets.
    After one-sided or double-sided copies obtained in processor 1 are transferred by conveyor 67 and laid out in a sorting device in sets or in piles, they are ready for further processing
    in the apparatus 96 final processing. Making copies for this stage of processing can occur simultaneously with the layout of the sets, during the execution of the last shifts of a number of baskets from top to bottom, if this is the last direction in assembling the sets.
    ι. '
    The final processing apparatus 96 comprises five nodes, each of which is programmed to work in coordination with others, as well as with the control means 5, taking into account the number of sets and the number of copies in the set previously specified, and synchronized with the switch of the document sheet sensor in the device 13 for filing documents. The apparatus 96 final processing (Fig. 1 and 3) is equipped with a lift 97 and a conveyor 98 sets of piles.
    The receiving tool 10 is used for automatically unloading sets or stacks of copy sheets from trays at the unloading point located two steps, t, e „into two trays below the point 68 of loading trays. The set carrier (Fig. 5) includes an elongated channel element 99 attached to the frame of the post-processing apparatus, and a clamping carriage 100 sliding back and forth along the rod 101 attached at the ends to the bottom surface of the element 99. The clamping carriage holds the upper and lower movable holders 102 and 103, respectively, adapted for gripping the edge of a set or stack and for transferring them from a number of trays 7 to the means 9 for fastening, if provided for by the program, or directly onto the elevator 97, if skr warming is not provided. The cycle period is equal to the time of receipt of two sheets of a copy, i.e. collection time sheets in two consecutive tray. During this period, the clamping carriage 100 is triggered by passing trays 7 through one during each pass of a row of trays, so that as it moves up the filled row, six of the twelve trays are unloaded and the remaining trays are unloaded during the row descent.
    Kit carrier also has re
    versioned servomotor 104 attached to one of the 'ends of the element
    ta 99 and equipped with a drive system 15 1366050
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    mine, which is connected by a synchronization belt 105 with a pulley 106 mounted rotatably at the other end of the element 99. The carriage 5 is attached to the lower part of the belt 105, and the excitation of the servomotor 104 causes a reciprocating movement of the clamping carriage 100 and the introduction of the holders 102 and 103 in the grader in the pick-up position of the kit. Further movement in this direction leads to retraction of the holders in the same movement cycle. Offset holder | A gage 102 and a-103 is sensed by a sensor 107 mounted on a sorter frame and generating a zero count signal corresponding to this position of a set carrier 20 used for subsequent synchronization of post-processing operations. The gripping and releasing movements of the holders 102 and 103 are caused by the solenoid valve 25 in the pneumatic device 108 operatively connected to the holders (not shown) by the hose.
    I.
    To push the stapled sets out of the stapler, a pushing mechanism 109 is used, pushing the sets onto the lift 97.
    In the mode of stacks or loose sets, the pusher serves as a stopper for holders 102 and 103, from which stacks of sheets are removed. The pusher mechanism is installed under the clamping carriage 100 and contains two upwardly protruding pusher elements 110, one on each side of the holders 102 and 103, whereby the pushing forces are balanced. The elements 110 are slidable by means of a crank consisting of two interconnected 45 links 111 and 112, set in motion when the driving pulley 113 rotates. This pulley comes to rotate under the action of the repair 114 and the driving pulley 115, the movement of which is caused engine 116, which drives the head of the fastening device. In the preferred embodiment, this engine is permanently turned on and drives the other elements of the apparatus 11 ^ of final processing, and the pulley 115 is connected to it at the required moments by means of an electromagnetic
    couplings (not shown) in accordance with a given program.
    The kit stapler 118. (FIG. 7) holds one or two clips that can be located in different positions along the left edge of a set or a stack of copy sheets. Stapling is done by two identical mechanisms, each of which performs the operations of clamping the set, inserting a clip and bending the clip .
    Each head 119 is mounted in an inverted position and driven by the engine 116 by means of a crank mechanism. This mechanism includes an elongated drive shaft 120 with splines, which is rotated by the engine 117 using a pulley 121 and a belt. This shaft causes the sets or stacks of sheets to be clamped and drives the heads to insert the paper clips. The drive between shaft 120 and heads 119 contains gear 122 coupled to the splines on the shaft so that the heads can move or move apart and also move in one direction, allowing you to choose the desired location of the clips at the edge of the set or stack. Gear 129, in turn, sets in motion the crank mechanism 123, which informs the reciprocating movement of the pusher of the clips in the corresponding direction. 119, causing the clip to detach from the clip, and inserting the clip's legs into the edge of a set or stack of sheets. To produce bonding at certain moments of the cycle, with the crank mechanism uses an electromagnetic coupling 124 ..
    I.
    The clamping of the edges of the sets or stacks before inserting the clips is also performed under the action of the engine 116 by means of the crank mechanism 125, similar to the actuator. The clamping mechanism comprises an anvil 126 mounted on a long row of motion transmitting levers 127 pivotally mounted on an axis 128 fixed to the frame of the fastening means. The crank mechanism 125, driven by the shaft 120 by means of an electromagnetic clutch, compresses the relatively rigid clamping spring 130 during connection with the shaft. At the right time drive coupling 17
    The engagement with the levers 127 disengages the spring 130, releasing it by displacing the anvil 126 relative to the corresponding head 119, which leads to compression of the edge of the fixed set or stack (Fig. 7). The operation of the folding of the clip is carried out by means of a coupling 131 mounted on the end of a row of levers 127. When turned on, the solenoid causes the clip legs to bend and finally fix a set of sheets of copies. Above the heads 119 is the holder 132 containing a set of staples for each head. For the automatic feeding of the posts to the receiving ends of the heads, if necessary, a feeding device can be used.
    (not shown).
    A sensor 133 (FIG. 1) is disposed between the heads 119 and is used in conjunction with the sensor 107 to control operations between zero counting occurring during the movement of the holders and the moment when the edge of the set of copy sheets falls into the binding heads. Synchronization signals from these sensors are transmitted to the microprocessor of the software device.
    Lift 97 assembles stapled or uncoupled sets or stacks of copies of sheets in packs, transmitted to the operator by conveyor 98 "Lift (Fig. 1 and 3) has a table 134 mounted on the upper end of a vertical drive screw 135, connected by a thread with a threaded element 136, vertically attached to the base of the frame. When the element 136 is rotated, the table 134 is displaced vertically upwards or downwards. With the element 136, a reversible motor 137 is coupled, which gives this element rotation in any direction. The table is provided with a series of belt conveyors 138, on which working surfaces collide, stapled or uncoupled stacks of sheets or sets of copies. The engine 139 is installed below the table 134 and serves to drive the belt conveyors.
    The height of the packs of sets or copies is regulated by an optical sensor 140, which "looks"
    ten
    stack in the transverse direction and turns on the engine, lowering the tray until the pack is below 1366050 18
    same sensor. The second sensor 141 determines the lowest position of the table 134 of the lift 97, in which the table is considered to be filled to the end. The sensor 141 causes a movement of the second type, belt conveyors 138, in which the bundle is transferred to the conveyor 98 for removal. After this transfer, the elevator returns to its highest position to receive the next sets or stacks of copies and is controlled by the sensor 140.
    The conveyor 98 is used to receive packs of stitched or unstitched sets or stacks coming from the elevator, for the removal of packs from the post-processing apparatus and for storing them for removal by the operator. The conveyor 98 (FIG. 3) has a supporting frame 142 with a number of belt conveyors 143 installed on it and an engine 144 that drives these tapes in motion, the direction of which allows you to remove bundles of sets or stacks from the elevator 97 and carry them into the zones between the fastening mechanisms. At the outer end of the frame 142 is located a switch 145, which contains a drive element 118 protruding between the belts 143 and serving as a sensor for the presence of a pack on tapes.
    In case the pack is transferred to the end of the tape, it interacts with the element 118 disconnecting the motor circuit 144 and disconnecting it. The switch 145 is also connected to the system logic device and the controller. When it is triggered, the lift and displacement engine 139 does not turn on. To transfer the next set of bundles or stacks to the conveyor, it contributes to the beginning of the reverse of the machine to its original position, in which the sensor 141 determines the lowest position of the elevator table 134 state informing the operator about the state of the machine and the reason for the stop.
    The machine continues to receive copies of the sheets, and performs operations with a set of trays 7 to complete the already begun third cycle-exposed 55 tion set of document sheets.
    After the completion of the third exposure of the document device 13 returns to its original position. After
    how the processor finishes processing
    25
    thirty
    35
    40
    45
    50
    19 1366050
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    copying the third set, it also moves to its original position, and the set of trays 7 continues to work on arranging the copy sheets. At the end of the layout, the ordered sets of copies remain in the trays without unloading and the whole system moves to its original position.
    The transition to the initial position begins when the apparatus for post-processing has finished receiving two full packs of sets or stacks, one of which is on the conveyor, the other is still on the lift, and in 1g set of trays all sheets of copies collected in one work cycle are collected
    devices 13. Thus, in those cases when the storage capacity of the system is exhausted and copies are not 20, until the system returns to its original position, all processing devices and conveyors are freed from document sheets and copies. In the above description, it was assumed that 25
    the conveyor is adapted for applying only one pack of sets or stacks. If the conveyor can contain more packs, the number of copy cycles increases accordingly.
    Return to the initial position may occur before the end of the cycle of production. In this case, the preliminary count and the current state until the moment of stopping are recorded. After removing the finished packs, the machine automatically turns on, continuing the unfinished cycle.
    Timing diagram (Fig. 8) or 40
    Displays a typical temporal sequence of operations performed by the post-processing device.
    It is assumed that the machine is installed in the mode of receiving sets, which, after the layout, are held together. 45 Only three sheets of a copy are shown, which is indicated in the upper graph of the diagram. Time periods plotted along the abscissa axis are measured in milliseconds and are in accordance with the speed of obtaining sheets of copies in processor 1, which is 120 copies per minute or one copy every 0.5 s.
    ‘55
    In accordance with this diagram, the first sheet in the upper graph falls by the leading edge to the reference point 68, located at the entrance to the trays 7, at a time interval of more than 300 ms after the zero count. Immediately before this moment the following operations are performed. The engine 95 is turned on and remains on during the sorting and post-processing process, the engine is turned on to shift the boxes from the reference point 68 to the receiving position of the first printed sheet; the motor 105 is turned on by launching the carrier of the sets and shifting the carriage 100 with the holders 102 and 103 to the second basket located under the first basket waiting for the sheet to be received (it is assumed that the binding should be performed). Before the rear edge of the first sheet crosses the reference point 68, the engine 81 is turned off, and the holders 102 and 103 continue to move in tray 7. The solenoid valve device 108 of the set carrier is turned on, causing the clamp to be clamped near the set holders immediately after turning off the engine 104 and before turning on the engine 104 to return the carriage 100 to the binding position. As the device 108 continues to operate, the clamping set, the carriage moves to the insertion position of one or two clips into the clamping edge of the set.
    In the stapling position, the edge of the set of copy sheets is subjected to three stapling operations: clamping, inserting a paper clip and bending the paper clip. Three graphs (Fig. 8) related to the bond are shown in the corresponding time relation. The time parameters are given here as an example; other values of the time parameters can be used to obtain optimal working conditions in various designs.
    The bending coupling 131 engages before the clamping coupling is engaged, although the clamping action must precede the bending. This discrepancy is explained by the fact that in some bending devices mechanical elements with high inertia are used. Therefore, although clutch 131 is turned on earlier (FIG. 7), its action is performed later. After the bonding is completed and the holders 102 and 103 are decompressed, a push mechanism triggers, removing the clamped chrome21 1366050
    22
    Ku of the holders and allowing the fall bonded set on the lift 97. Transactions relating to (bonding, ie movement of the carrier set, set clamp and bonding steps of the push operation mechanism to occur one pa · ^ zu during the passage of every two sheets to point 68.
    FIG. 9-12 and 13-16 show the sequence of sorting and post-processing for a document with an odd number of sheets and for a document with an even number of sheets, respectively, where the vertical columns A, -A and n in the left part of each sequence indicate the basket number, and the right ones vertical columns of numbers - the number of collected copies of the sheet of the document. It is assumed that the document processing device is programmed to set the document sheet on table 2 and perform twelve sheet exposures before removing it and replacing it with the next sheet, etc.
    This assumption also corresponds to the number of trays 7, since each sheet of the copy obtained during the twelve exposures of a sheet of document is accepted into the next tray of the sorting device.
    In FIG. 9, each of the trays numbered A, -A 42 contains eight sheets of a copy, and the trays A and A g all nine. Trays sheets 7 are shifted from the top position to the bottom, and wherein the received ninth sheet document copy sheet trays A, -A {2 -. It is assumed that the document processed in the device has 9 sheets. Since the ninth sheet is the last in the resulting set, then as the trays move down (Fig. 10) and the last leaf is inserted into each of them, the complete sets in the odd-numbered trays begin to undergo final processing with the participation of the set carrier, fastening device and pusher mechanism. Final processing is carried out when moving a row down through one tray, and the ninth sheet of copies is embedded in all trays in a row. Since in this example it is assumed that the frequency of receiving sheets of a copy is two sheets per second, the aligned and clamped sets of sheets
    served in a fastening device at second intervals.
    During the reverse movement of the row upwards (fig. 11 ^), the remaining sets are collected and removed from even-numbered trays. When it is necessary to obtain more than twelve copies, the ascending row of trays, moving from the position in FIG. 11 to the position in fig. 12, begin Receive the first sheets of copies of the first sheet of the document in the device 13, which starts the cycle repetition.
    FIG. 13-16 these sequences are repeated for the case when the document has an even number of sheets. In this example (the tenth copy sheet is the last one in the nabb), trays 7 are moved upwards from the lower 25 position to obtain the last sheet in each set (Fig. 13). When the row moves down (Fig. 14), the trays are unloaded through one (odd) and the sets are held together, and the even baskets 30 (Fig. 15) are unloaded when they are moved up. The next series of sheets of the copy begins to be taken to the baskets during their last upward shift during the previous processing cycle (Fig. 16).
    35 In the presented block diagram (Fig. 17) of the control device of the copying system (Fig. 1), the software 5 is operatively connected. Neno with four external devices40,
    mi: with processor 1 for controlling xerographic processing, moving sheets of a copy, and for synchronizing and regulating other processor parameters — with an input unit,
    45
    containing a lighting system and flash chains, as well as a means for resizing an image, with a .13 device and with a post-processing apparatus.
    50 ,
    The final processing device 96 has two starters, one of which is operatively connected by means of a relay to the engine 137 of the elevator,
    55 engine 144 conveyor, clamping
    engine 95 and engine 139 offset. Other starter promptly
    associated with a servo controller, which,
    in turn connected to two
    23
    1366050
    24
    power amplifiers and related circuits. One of these amplifiers switches on and energizes the sorter movement motor 81, and the other of the set carrier motor 104. These engines cause complex movements of various mechanisms, so it is necessary to precisely adjust the speed.
    One of the power amplifiers is also connected to the coupling of the actuator 124 of the fastening device, the coupling 131, the clamping coupling and the electromagnetic valve device 108.
    A copying system with a post-processing apparatus allows for the production of stapled ordered heads and non-stacked sets or. lossless stacks of copies, i.e. at a speed determined by the speed of receiving copies in a copying machine. Since the capacity of copy machines with post-processing machines, in which 25 separate recycling of document sheets is provided, is limited by the mechanical properties of the document processing apparatus, the invention reduces these limitations and makes it possible to further improve system performance.
    权利要求:
    Claims (3)
    [1]
    Claim
    1. A copying system containing a processor for reproducing the copied information on copy sheets, a means for repeatedly exposing each copy sheet, and a control tool that is different in that, in order to increase productivity, it contains a sorting device made in the form of a cassette with trays for collecting sheets produced by the Ίθ litter process and for folding into sets of copies with different images, a means for sending copies of sheets to the sheets delivered to the trays for collecting one sheet per lotto , Sredstvo'dlya fastening collated sets, located below the receiving trays, and means for receiving from the trays located sets of copies, the control means being associated with means of multiple exposure, and fastening sets for receiving sets of trays decomposed sets of copies,
    [2]
    2. The system of claim. 1, characterized in that it comprises means for periodically feeding the cassette with trays, associated with means for sending copies of the sheets issued by the processor.
    2. The system of PP. 1 and 2, characterized in that the means for. Periodically feeding the cassette with trays contains a vertical guide for moving the cassette in any direction vertically.
    [3]
    4. The system of PP. 1-3, characterized in that the number of trays cassette sorting device is equal to the number of exposures.
    1
    1366050
    FIG. 2
    FIG. 3
    1366050
    1366050
    6
    FIG. 7
    1366050
    12
    1366050
    Fig 13
    FIG. P
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP0046675A2|1982-03-03|
    JPH023503B2|1990-01-23|
    EP0046675A3|1982-10-06|
    EP0046675B1|1985-06-12|
    CA1163229A|1984-03-06|
    DE3170935D1|1985-07-18|
    JPS5764262A|1982-04-19|
    BR8105271A|1982-04-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3561754A|1969-08-11|1971-02-09|Minnesota Mining & Mfg|Sheet collation distributor|
    US3944794A|1972-12-05|1976-03-16|Xerox Corporation|Copying system control|
    US4054380A|1974-02-22|1977-10-18|Xerox Corporation|Control system for high speed copier/duplicators|
    US4134672A|1976-03-30|1979-01-16|Eastman Kodak Company|Copier finisher for an electrographic reproducing device|
    US4083550A|1976-08-03|1978-04-11|Rajendra Pal|Multiple copy sorting apparatus|
    US4145037A|1977-04-25|1979-03-20|Pitney Bowes, Inc.|Vertical collator-sorter|US4378085A|1980-11-03|1983-03-29|Xerox Corporation|Stapler apparatus having a mechanism for bending and cutting staple legs in accordance with the thickness of the work piece|
    US4368972A|1981-04-15|1983-01-18|Xerox Corporation|Very high speed duplicator with finishing function|
    US4462527A|1982-09-09|1984-07-31|Xerox Corporation|Device for lateral registration of computer form documents for copying|
    US4526309A|1982-09-13|1985-07-02|Xerox Corporation|Compatible copying of computer form documents|
    JPH0581508B2|1982-11-08|1993-11-15|Ricoh Kk|
    US4516714A|1983-12-21|1985-05-14|Xerox Corporation|High speed duplicator with sorter/stapling apparatus and stapler positioning control|
    US4537650A|1984-05-01|1985-08-27|Xerox Corporation|Sheet binding apparatus|
    JPH0242221B2|1984-08-31|1990-09-21|
    JPS62289860A|1986-06-09|1987-12-16|Canon Inc|Image forming device|
    JP2702504B2|1988-05-06|1998-01-21|株式会社リコー|Sorter stapling equipment|
    JP3020970B2|1989-01-18|2000-03-15|株式会社リコー|Paper processing equipment|
    JP2947839B2|1989-01-19|1999-09-13|株式会社リコー|Sheet processor|
    US5031890A|1989-01-19|1991-07-16|Ricoh Company, Ltd.|Paper handling apparatus|
    JPH0399891A|1989-09-14|1991-04-25|Ricoh Co Ltd|Paper after treatment apparatus|
    JPH0813582B2|1990-10-29|1996-02-14|三田工業株式会社|Paper post-processing device|
    JP2634107B2|1991-07-24|1997-07-23|三田工業株式会社|Image forming apparatus and paper discharge device therefor|
    JP2574959B2|1991-11-08|1997-01-22|株式会社リコー|Sheet processing equipment|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US18018480A| true| 1980-08-21|1980-08-21|
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