EP0153344A4 - Transport de materiauxen feuilles. - Google Patents

Transport de materiauxen feuilles.

Info

Publication number
EP0153344A4
EP0153344A4 EP19840902964 EP84902964A EP0153344A4 EP 0153344 A4 EP0153344 A4 EP 0153344A4 EP 19840902964 EP19840902964 EP 19840902964 EP 84902964 A EP84902964 A EP 84902964A EP 0153344 A4 EP0153344 A4 EP 0153344A4
Authority
EP
European Patent Office
Prior art keywords
materials
stack
group
bundle
backstop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19840902964
Other languages
German (de)
English (en)
Other versions
EP0153344A1 (fr
Inventor
William C Hawthorne
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.)
Vanguard Machinery Corp
Original Assignee
Vanguard Machinery Corp
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 Vanguard Machinery Corp filed Critical Vanguard Machinery Corp
Publication of EP0153344A1 publication Critical patent/EP0153344A1/fr
Publication of EP0153344A4 publication Critical patent/EP0153344A4/fr
Withdrawn legal-status Critical Current

Links

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
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/30—Supports or magazines for piles from which articles are to be separated with means for replenishing the pile during continuous separation of articles therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • This invention relates to the transport of materials, and, more particuarly, to the automatic transport of sheet materials. It is often necessary to move materials from one position to another. For example, corrugated or cardboard sheets, often in stacks, are moved from a receiving position and loaded into a hopper and fed to a press where they are imprinted with a desired legend. Although the stacks can be transported manually from their receiving position and manually loaded into the hopper, it is desirable to automate the loading. For that purpose a number of arrangements have been proposed. Representative examples are U.S. patent 4,322,969 which issued to J.A. Miller et al in January 1969; U.S. patent 3,643,939 which issued to
  • Another object of the invention is to provide a comparatively compact transport system which will not prevent the through-flow of material when the system is temporarily shut down, for example, for repair.
  • Still another object of the invention is to speed the transport of materials.
  • a related object is to eliminate the need for shingling in the transport of sheet materials.
  • Another related object is to achieve batch feeding of materials with reduced chance of jamming.
  • Yet another object of the invention is to facilitate the upset of stacks of large and heavy sheets of material.
  • a related object is to permit the selective reorientation of batches of material.
  • a still further object of the invention is to control the throughput of a transport system to insure a continuous and adequate supply of material at the system output.
  • the invention provides for the transport of materials by elevating a stack of materials and then transporting a group of materials in the elevated stack to an upset position. From the upset position the materials of the group are simultaneously transported to an output, such as a hopper of a printing press.
  • the materials are upset at the upset position, either by being reoriented so that portions of the materials that formerly faced downwardly now face upwardly, or by changing the way in which the materials are supported.
  • a grouping forming a partial stack supported with a lower face upwardly can be upset in the sense of being thereafter supported not only with respect to the lower faces which are stacked upon one another, but also with respect to the edges of the stack of materials.
  • the materials are elevated against a movable backstop. This assures that the materials which are selected to form a group at the first transport location will not become disarranged and interfere with subsequent feeding of the materials .
  • the backstop can be positioned below the level at which the group is transported from the elevated position, or above the level at which the group is transported from the elevated position.
  • the group is separated from the stack prior to being transported to the upset position.
  • the separation is advantageously effected by the use of a peel-off finger.
  • the extent of the group is desirably determined by a pivotal separating plate which controls the height to which the stack can be elevated.
  • the position of the peel-off finger with respect to the stack is pivotally adjustable.
  • the upset position can include an inclined support surface which is also pivotal. The latter controls the noise and impact that are made by the group of materials at the upset position.
  • the materials of the group are aligned against an inclined support surface at an upset position.
  • the alignment is accomplished by plates which move along the inclined support surface.
  • the alignment plates are desirably coordinated in their motions to move towards one another in effecting the desired alignment of the materials, for example, sheets of paper in a stack.
  • the group of materials that is transported from the upset position is pushed along an outfeed platform.
  • the pusher is desirably pivotally mounted so that on its return stroke it can clear any obstacle in its path.
  • the elevating and transporting of the materials takes place on a roller mounted feed.
  • scrap materials are desirably feedable transversely from the elevational position.
  • the materials are desirably sheets of paper, for example, corrugated cardboard, which are elevated vertically and are then transported horizontally from their elevated position to the upset position.
  • FIGURE 1 is a side view of a mechanism for transporting materials in accordance with the invention
  • FIGURE 2 is a perspective view illustrating various functional components of the mechanism of FIGURE 1;
  • FIGURE 3 is a skelatal side view illustrating other functional aspects of the mechanism of FIGURE 1;
  • FIGURE 4A is a schematic diagram of a portion of the control circuitry for automatic operation of the in-feed conveyor and for automatic operation of the movable backstop used in the invention
  • FIGURE 4B is a schematic diagram of a portion of the circuitry employed for automatic lifting and positioning of the peel-off mechanism in accordance with the invention
  • FIGURE 4C is a schematic diagram of illustrative circuitry for operating a front stop and a separator
  • FIGURE 4D is a schematic diagram of representative drop conveyor control and bundle squaring circuitry
  • FIGURE 4E is a schematic diagram of outfeed and upset circuitry for the practice of the invention.
  • FIGURE 5A is a schematic diagram of power supply circuitry and associated stack feed and bundle conveyor circuitry
  • FIGURE 5B is a circuit diagram of additional circuitry for stack detection, lift operation and accessory operation
  • FIGURE 5C is a schematic diagram of separator plate, peeler and other accessory operation
  • FIGURE 5D is a circuit diagram for bundle conveyor, squarer and pusher circuitry
  • FIGURE 5E is a schematic diagram of lift reset, initialization and related circuitry
  • FIGURE 5F is a circuit diagram of guide separator, scrap conveyor and walk circuitry; and FIGURE 6 is a block and schematic diagram of an alternative system for the practice of the invention .
  • FIGURE 1 a transport system 10 in accordance with the invention is shown in FIGURE 1.
  • the system 10 is formed by a stack infeed conveyor 100, a stack lift 200, a main frame 300, a separator mechanism 400, an upset support mechanism 500, and an outfeed platform 600.
  • the operation of the transport system 10 is controlled by a separate panel 700. Additional control functions are exercised from a set of switches 310 on the main frame 300.
  • the transport system 10 is operated with respect to a stack of materials such as the stack of sheets S shown positioned on the infeed conveyor 100.
  • the stack S is transported to the infeed conveyor 100 in any convenient way, for example from a loading dock over an auxiliary roller conveyor such as the unit 90 which is partially illustrated in FIGURE 1.
  • the stack S is elevated vertically along the backstop 301 by lift arms 201-1 and 201-2 of the lift 200.
  • the stack S is raised to a position where the separator 400 can remove a predetermined batch of sheets from the stack S and advance the batch, as a group along the dashed line path P which is within the main frame 300.
  • the mechanism for separating the batch from the stack S and conveying it forwardly along the path P is explained in greater detail below.
  • the batch which is moved along the interior path P within the main frame 300 also includes a partial stack in which the sheets are face to face upon one another with the lowermost face in contact with the path P.
  • the batch passes the knee point of the path P and moves along the slide it is separated not only along the lower face of the lowermost member, but along the edges of the individual sheets constituting the batch as will be seen more clearly below. At this point the edges lie along the output platform 600, and pusher arms, shown below, move the batch forwardly along the platform 600.
  • the end of the platform 600 desirably includes a hopper (not shown) in which the batch sheets are positioned for continued processing, such as feed to a printer which provides a suitable legend on the faces of the individual sheets constituting the batch.
  • a printer which provides a suitable legend on the faces of the individual sheets constituting the batch.
  • the entire system 10 is mounted on wheels 11 which can be supported in suitable tracks 12. In FIGURE 1 only one of the wheels 11-1 is visible shown positioned in the central groove of a track 12-1. Because of the roller mounting of the entire mechanism 10, it can be pushed out of position to allow manual loading of the hopper or other receptacle located at the end of the platform 600 in the event that a breakdown takes place in the mechanism 10 which requires repair.
  • the various functions of the transport mechanism 10 are under the control of the panel 700 which includes various control knobs 701 through 713 for operating the lift 200 either manually or automatically; controlling the pusher (between the guide plates 502-1 and 502-2); controlling the guide plates either collectively or individually, and so forth.
  • control switches 311 through 315 are located on the side panel of the main frame 300 near the backstop 301. The latter switches control the conveyor 100 and allow it to be operated either manually or automatically, as well as the components of the backstop 301 which are explained further below.
  • the system 10 includes a scrap removal con veyor 80 which propels individual sheets from the stack S that has been positioned on the infeed conveyor 100, in those situations where sheets of the stack, which are out of alignment, have been able to pass through the opening between the lower edge of the backstop and the upper level of the scrap removal conveyor 80.
  • the entry of the individual scrap sheets onto the scrap removal conveyor will be clearer from the further description below.
  • FIGURE 2 A skeletal outline of the various constituents of the transport system 10 is illustrated in FIGURE 2.
  • the main frame 300 includes girders that support the entire structure on rollers 11-1 through 11-4. The latter ride in tracks of rails 12-1 and 12-2.
  • the lift 200 includes arms 201-1 and 201-2 which straddle the end belts of the infeed conveyor 100.
  • the arms 201-1 and 201-2 are affixed to a transverse member 202 which is vertically elevatable, upon command, between the side girders 311-1 and 311-2 of the main frame 300.
  • the positioning of the support 202 within mounting members 311-1 and 311-2 is conventional.
  • the lift 200 indues additional arms 201-3 and 201-4 which are interspersed between individual belts of the infeed conveyor 100.
  • This arrangement permits the elevation and processing of stacks having various longitudinal dimensions.
  • the infeed conveyor 100 includes three belts 101-1 to 101-3. One end of the belts is wrapped around a set of pulleys joined to a common axle 102. The other end of the belts is wrapped around individual pulleys which are supported to allow the interspersion of the fork arms 201-3 and 201-4.
  • the backstop 301 is elevated above the level of the support arm 202 to allow access to the scrap removal conveyor 80.
  • the latter is operational when individual sheets from the stack, which are out of alignment, enter the scrap removal conveyor as the stack is positioned on the conveyor 100. Once the stack is suitably located on the conveyor 100 and below the lift 200, it is raised against the backstop 301.
  • a movable section 302. The stack is elevated above the edge of the fixed backstop 301 to a position controlled by a sensor (not shown), which is described below. When the stack is in position, that portion is above the upper edge of the fixed backstop 301 and in contact with a front stop 303. The latter is used to assure alignment and non-jamming by that batch portion that will be fed along a bundle conveyor 304 so that the bundle rests against the inclined support 501.
  • the movement of the bundle onto the conveyor 304 is accomplished by the separator 400 using a peel-off finger 402.
  • the separator 400 is suspended from the frame 300 by side plates, of which only the side plate 403-2 is visible in FIGURE 2.
  • Support girders for the peel-off finger 402 and the separator plate 401 extend between the side plates, including the side plate 403-2.
  • the support girders 404 and 405 mount hydraulic cylinders 404h and 405h for operating the respective separator plate 401 and the peel-off finger 402.
  • the bundle moves forwardly until it passes over the frontal pulleys of the conveyor 304 and rests against the inclined support 501 of the upset support mechanism 500.
  • Side panels of which only the side panel 502-1 is visible in FIGURE 2, are operated by respective hydraulic cylinders, including cylinder 503-1, to square the batch or bundle that then rests against the inclined support 501.
  • the bundle is next upset onto the outfeed platform 600, either in the same orientation that exists at the infeed conveyor, or the reverse.
  • upset arms are included which are not visible in FIGURE 2, but are shown in the embodiment of FIGURE 3 below.
  • the bundles are used to move the bundle forwardly along the platform 600 until it reaches output rollers 602-1 and 602-2. At that point the bundle moves into a further unit such as the hopper of a press feeder (not shown). It will be appreciated that for the embodiment of FIGURE 2 in which the outfeed platform 600 is two separate parts 603-1 and 603-2, the bundles have a width laterally that exceeds the distance of separation between the two sections 603-1 and 603-2. In some cases, for narrower bundels, a third section can be included between the two sections 603-1 and 603-2 shown in FIGURE 2. In addition, the pusher arms 601-1 and 601-2 are depressable below the bundle during retraction, as illustrated in detail below.
  • the stack lift 200 is adapted to roll upwardly along side girders, of which only the side girder 311-1 is visible in FIGURE 3.
  • the lift 200 includes a roller mounted carriage 204 formed by members 204-1 and 204-2 with respective rollers 205 and 206 that contact opposite sides of the side girder 311-1.
  • the stack When the incoming stack is applied to the infeed conveyor 100, over the input belts including the belt 101-1 which straddles rollers 103-1 and 103-2, the stack is propelled forwardly until it contacts the fixed backstop 301. As the stack is elevated, it comes into contact with the movable backstop 302 which is operated by a cylinder (not shown) to achieve prepositioning of the stack before operation of the separator 400. Final positioning of the stack with respect to the bundle conveyor 304 is accomplished by the operation of the front stop 303 using a hydraulic cylinder 303h.
  • the separator, shown mounted on the right side plate 403-2 is operated with the separating plate 401 fully elevated by the hydraulic cylinder 401h, and the peel-off finger 402 is operated by a hydraulic cylinder 402h.
  • the separator 400 is also pivotally adjustable by the operation of a hydraulic cylinder 400h. As shown in FIGURE 3, the latter operation causes the side plate 403-2 (and the companion opposite side plate which is not shown) to move along an arc with respect to a pivot point 400p. The action of the separator causes a bundle or batch of prescribed height to be removed from the stack and moved forwardly onto the bundle conveyor 304. In FIGURE 3 the bundle Bl, which is separated from the stack S, is shown after having moved onto the bundle conveyor to a position P2 before tumbling at the knee K onto the inclined support 501. In the particular embodiment of FIGURE 3, the inclined support 501 includes a drop conveyor 5Old that is operated by a hydraulic cylinder 501h.
  • the purpose of the drop conveyor 501d is to lessen the noise impact that can occur when the bundle B passes over the knee K of the bundle conveyor.
  • the bundle conveyor can be elevated into alignment and even above the top surface of the bundle conveyor to receive the bundle B at a position P3.
  • the conveyor 501d is lowered into alignment with the inclined support 501 in preparation for bundle upset which occurs next.
  • the upset takes place using arms 505 which are reciprocated in alignment with the surface of the output platform 600 by the hydraulic cylinder (not shown).
  • the upset achieved by the embodiment of FIGURE 3 follows the operation of the squaring side panels 502-1 and its opposite member (not visible in FIGURE 3).
  • the side panel 502-1 is laterally movable against the face of the inclined support 501 by the hydraulic cylinder 503-1.
  • the bundle B is then in position P4 and it becomes upset when the arms 505 are moved forwardly. As a result the bundle B occupies the position P5 and is then ready for transport over the output platform to a receiving hopper.
  • FIGURE 3 the forward movement of the bundle B from the position P5 takes place by a pusher 601.
  • the pusher 601 of FIGURE 3 is not depressable below the surface of the outfeed platform 600 and consequently requires retraction through the inclined support 501 before outfeed takes place.
  • the foregoing operation of the embodiment of FIGURE 3 takes place in response to the operation of various sensing devices such as microswitchas, strip switches and photoelectric sensors.
  • the farious sensors used in FIGURE 3 are set forth in the various numbered rectangular boxes as follows: SENSOR ID SENSOR TYPE SENSOR FUNCTION
  • Rect.Blk. 2 Microswitch Detect fully lowered position of lift 200 Rect. Blk.3 Microswitch Detect fully extension of movable backstop 302 Rect.Blk. 4 Hicroswitch Detect proximity of stack to the face of the movable backstop 302 Rect.Blk. 5 Microswitch Detect full retraction of the movable backstop 302 Rect. Blk.6 Magnetic Proximity Detect fully elevated posi ⁇
  • Rect.Blk. 13 Photocell Detects position of trailing edge of bundle B in position P2 preparatory to tumbling to the position P3
  • the system 10 may be operated manually or automatically. In manual operation appropriate controls are activated as the various sensors, in the numbered rectangular blocks of FIGURE 3 become energized. In automatic operation the sensor signals initiate and produce a continuing set of operations.
  • FIGURE 4A The control circuitry for automatic operation of the infeed conveyor 100 and the movable backstop 302 is shown in FIGURE 4A.
  • the system 10 is illustratively operated from a standard alternating current power source which is, in turn, used in the manual operation of various drive motors, including the drive motor (not shown) for the infeed conveyor 100 and a similar motor (not shown) for the movable backstop 302.
  • the system is operated by various relays which are desirably energized by direct current signals, derived from the alternating current input by standard rectification.
  • the system includes two bus bars, one for alternating currents and the second one for direct currents. These are supplemented by two additional bus bars for respective alternating current and direct current control when the system is under automatic operation.
  • FIGURE 4A and the control circuirtyr for the infeed conveyor 100 and the movable backstop 302 in automatic operation from the alternating current memory bus, through a machine stop switch corresponding, for example, to the switch 702 of FIGURE 1, operation of the stop switch allows the automatic sequencing of the system 10 to be interrupted as desired by the operator.
  • an alternating current signal for example at standard power line voltage, is applied to the motor coil 102m-1 for forward operation of the conveyor through a set of contacts.
  • Each of the contacts is associated with the relay and is indicated by two parallel lines for contacts which are normally open but are closed when the associated relay is energized.
  • the next set of contacts in the control path indicates that there is an open circuit in the branch until the separator 400 (FIGURE 3) has been pivoted to its fully upward position.
  • the next set of contacts, designated KBO indicates there is an open circuit until the movable backstop 302 has been fully extended to the position shown in FIGURE 3.
  • the designation "KBO” can be read as contacts "backstop out”.
  • the final set of contacts in the control branch for the infeed conveyor is designated KLD-A. This designation refers to the "A" relay that is energized when the "lift” 200 is “down” as a result of a signal from the detector at rectangular block 2 of FIGURE 3.
  • FIGURE 4A provision is made to bypass the contacts KBO (For the backstop fully out) by a manually operatable shunt switch 615 which is illustratively mounted in the cluster 610 of control switches on the outfeed platform 600. This allows infeed of the stack whether or not the backstop 302 is fully extended to the position shown in FIGURE 3 at the option of the operator.
  • the stack S in FIGURE 1 then moves forwardly until it operates the detector of rectangular block 24 in FIGURE 3 and opens contacts KSD-A.
  • the stack is then positioned for the next step in the automatic sequencing.
  • the automatic operating of the movable backstop 302 will be discussed in connection with the control branches which include the contactor coils 302c-1 and 302c-2 for the respective forward and reverse operations of the backstop motor (not shown).
  • the branch for reverse operation which includes the contactor coil 302c-2 has relay contacts KCB (normally open) and KBR (normally closed).
  • the companion path for forward automatic motion of the backstop 302 includes the forwarding contactor coil 302c-1 includes four normally closed contacts KBO, KCB, KCBL and KSD-A.
  • a first set of contacts KLD-A are normally open.
  • the contacts KCB, KCBL and KSD-A are closed unless there is a stack "close to backstop” or there is a “stack detected” so that when the lift is fully down, and KLD-A is operated, the backstop will be moved fully forward to the position shown in FIGURE 3 until the detector at rectangular block 3 operates and energizes the relay associated with the contacts KBO to open the forward control branch.
  • the backstop 302 With the lift down and no stack on the lift the backstop 302 will be fully extended and remain so until there is a stack on the lift which activates the detector at rectangular block 4.
  • the movable backstop therefore assures that a tall incoming stack will be appropriately displaced from the fixed backstop and simultaneously is programmed to avoid interference with the subsequent lifting of a comparatively short stack which is initially below the level of the movable backstop.
  • the control branches associated with the automatic raising of the lift and the peel-off of the top portion of the stack to form the bundle B1 is shown in FIGURE 4B.
  • the first control branch in FIGURE 4B which includes the relay R-KRL, i.e. the relay for the contacts that will "raise the lift” include four normally open contacts KSD-A, KSFU, KPOR and KBR; and six normally closed contacts K8, K13, KSA4, KPCP, KSKP, and KLU.
  • the lift will raise automatically as long as there is a stack on the lift so that the detector at rectangular block 24 is operated, closing the contacts KSD-A (leading edge of the stack detected), the front stop 303 of FIGURE 3 is fully up and has operated the detector at rectangular block 8 which in turn closes the contacts KSFU (stop fully up).
  • the peel-off finger 402 must be fully retracted and the detector at rectangular block 7 activated to close contacts KPOR (peel-off retracted).
  • the backstop 302 must also be fully retracted, as discussed above to prevent interference with the rising stack.
  • the normally closed contacts will remain in that condition as long as the system 10 is not cycling, which would operate and open contacts K8, there is no bundle on the conveyor 304 at the position of the detector 13 which would operate contacts K13 and KSA4.
  • the stack continues to rise until it reaches the peeloff position at rectangular detection block 9 operating and opening contacts KPCP (peel control position) and KSKP (stack position).
  • the other control on raising the stack is that the lift has not reached its maximum elevation position at rectangular block 21 causing opening of the contacts KLU (lift up).
  • the relay R-KRL operates contacts KRL in the second control branch containing the contactor coil KRLC for the hydraulic lift motor (not shown).
  • Other contacts in the control branch for the hydraulic lift motor include normally closed contacts KPU and normally open contacts KSS2.
  • the lift will operate only as long as the separator 400 is in contact with a strip switch and the separator piviot is not fully up.
  • the contacts KPU pivot up
  • the relay R-KRL also acts in the control branch that 'lowers the separator assembly.
  • This branch controls cylinder 40Oh in FIGURE 3 by three parallel contacts of which two are normally closed and one is normally open.
  • the normally open contact KRL thus acts on the cylinder 402h while the lift is being raised.
  • the parallel contacts KLD-A also provide a signal path when the lift is not fully, down and the further shunt contacts KPOR provide a further signal path when the peel- off finger 402 is not fully retracted, i.e. there is no operation as a result of "peel-off retraction".
  • the next automatic operation involves the front stop 303, the separator plate 401 and the peel-off finger 402.
  • the front stop be fully up in order to close the contacts KSFU as a result of the detector at rectangular block 8.
  • the front stop In order to exercise proper peel-off operation the front stop must be down to the position shown in FIGURE 2. This action is accomplished by the hydraulic cylinder 303h in the first control branch of FIGURE 4C.
  • This branch contains normally open contacts KSKP (stack in peeloff position) and KBCT (bundle conveyor timing). Also included are normally closed contacts KPU (pivot up) and K13 (bundle at detector 13).
  • the front stop will be lowered if the stack is in peel-off position (through the operation of contacts KSKP, resulting from the signal detected in rectangular block 9).
  • the associated contacts KBCT will also be closed after a suitable delay interval to assure that, there is no bundle on the conveyor 304 which would interfere with the lowering of the stop 303.
  • the remaining contacts KPU and K13 will remain closed as long as the separator 400 is not fully up and there is no detected bundle at the detector position 13.
  • the hydraulic cylinder causes the peel-off finger 402 to engage the bundle B1 of FIGURE 3 at position P1 and move it forwardly onto the bundle conveyor 304 against the backstop 303.
  • the separator plate 401 had been extended upwardly by virtue of its prior contact with detector in rectangular block 23 as indicated in the fourth control branch of FIGURE 4C.
  • Momentary contact is sufficient to continue the signal by the relay R-KSC because the shunt branch which contains, in addition to contacts KSG, normally closed contacts KPOE that are opened only when the peel-off cylinder 402h becomes fully extended.
  • the separator plate When the separator plate is fully up, it energizes the relay R-KSPU as shown in the fith control branch of FIGURE 4C .
  • the peel-off cylinder When the peel-off cylinder is fully extended it opens the circuit for the relay R-KSFD as well as the circuit for the relay R-KSC. When power is removed from the peel-off cylinder it begins to retract and the separator plate 401 is released. This prevents the retraction of the peel-off finger from inadvertently causing a reward displacement of the bundle B1.
  • the control branch for the drop conveyor is the first of the branches shown in FIGURE 4D. This branch acts upon the drop conveyor cylinder 501h. It is to be noted that the drop conveyor 501d may be omitted from the system 10 but when it is included it is desirably maintained at its receiving position shown in FIGURE 3 above the level of the inclined support 501.
  • the first two branches in FIGURE 4D are active with the result that the relay R-KDC (drop conveyor) is energized from the photocell D26.
  • the control circuitry for these operations is set forth in the control branches of FIGURE 4E.
  • the first branch includes a relay R-KAR (arms retracted which is energized when the detector in rectangular block 15 is operated by switch closure.
  • the relay R-KAR acts upon the transfer contacts KAR in the second branch, the capacitor having previously been charged and its charge applied by the transfer action of the contacts KAR to the relay R-KARM.
  • the latter than serves to permit operation of the pusher 601-1, the upset arms having been operated following the action of the squaring cylinder in producing a delay signal on the timing branch and the extend branch shown in FIGURE 4E.
  • the push cylinders are actuated in accordance with their control branch and their operation is monitored at detectors 18 and 19.
  • a detector in rectangular block 20 indicates when the bundle B1 has been pushed from position F6 beyond the end of the outfeed conveyor 600.
  • KSKP and KPCP Operate when the stack is in position for the peel-off of bundle B1 as monitored by the detector in rectangular block 9
  • KBR Operates when the movable backstop 302 is fully rectracted as detected by the switch in rectangular block 5
  • KBO Operates when the movable backstop is fully out or extended as detected by the switch in rectangular block 3
  • KSD-A & KSD-B Designates A and B relay contacts which operate when the stack is detected near the fixed backstop 301 at the position of rectangular block 24
  • KLD-A & KLD-B Refers to A and B relays which operate when the lift 200 is fully down as detected by a switch at rectangular block 2
  • KRL Provides a signal for raising of the lift 200
  • KPOR Indicates that the peel-off cylinder 402h is fully retracted
  • KSFU Indicates the front stop 303 is fully elevated as detected by the magnetic proximity switch in rectangular block 8 CONTACT DESIGNATION FUNCTION
  • KSFD Indicates that the front stop 303 is fully down as indicated by the magnetic proximity switch in rectangular block 10
  • KPOE Indicates that the peel-off cylinder 402h is fully extended as detected by the magnetic proximity switch in rectangular block 12
  • KSPU Indicates that the separator plate 401 is fully elevated as indicated by closure of the switch in rectangular block 11
  • KNOP Indicates when the peel-off finger 402 is partially retracted by operation of the magnetic proximity switch at rectangular block 7A
  • KINI Provides an initializing operation that allows direct current energy to be applied to the system before alternating current energy.
  • KPCP Indicates when the stack is in position for having the bundle B1 separated by the separator 400 as a result of photocell operation at rectangular block 5
  • KSS2 Indicates when the strip switch associated with the separator 400 has been operated CONTACT
  • KRLC Contactor for the hydraulic motor associa ated with the separator 400 has been operated KBC Contactor for the motor associated with the bundle conveyor 304
  • KUAC Designates upset arms cylinder
  • KUAT Designates upset arms pluse interval timer
  • KSST Designates delayed signal produced by operation of the squaring cylinder 503-1
  • K13 and KSA4 Responds to trailing edge of bundle at the photocell detector in rectangular block 13. These contacts and relays operate in conjunction with intermediate contacts K13P
  • KSA3-A & KSA3-B Respond to the presence of the bundle B1 against the inclined backstop as detected by the closure of switch D16
  • KGR Indicates that the squaring side guides 502-1 and 502-2 are fully retracted, i.e. spread apart KUAR Indicates when the upset arms 505 are fully retracted by closure of the switch at rectangular block 15 CONTACT DESIGNATION FUNCTION
  • KPE Operates when the pusher 601 is fully extended.
  • signals are generated at positions 18 and 19 designated K18 and K19 for rectangular blocks 18 and 19 respectively. These produce a further signal at a 38" interim point designated KP38.
  • KAR-N Indicates a position of the upset arm 505
  • KLU Indicates that the lift 200 is fully elevated
  • KPC Indicates completion of a cycle of operation
  • KMll Indicates that the hopper at the output end of the outfeed conveyor 600 has received material.
  • KDC Indicates operation of the photohead at position 26 for the drop conveyor 501d
  • KNIP Indicates activation of a strip switch on the inclined support 501
  • KJFT Provides a forward timing interval for the frame 300
  • Representative circuitry for providing alternating current and direct current energization of the system 10 is illustrated in FIGURE 5A.
  • additional circuitry for accomplishing the other functions not previously discussed, making use of the various contacts enumerated above is set forth in FIGURE 58.
  • the upset arms 505 for the sy ⁇ tem 10 of FIGURE 3 provide stack upset retaining the same orientation of the upset sheets as existed for the sheets originally conveyed to the lift 200.
  • upset arms are pvodied which reverse the orientation of the bundle B1'.
  • the arms 505 of FIGURE 3 are replaced by flip-over arms 506' which are operated by a flip-over cylinder 506h'. It can be seen that the arms 506' have a pivot 506p' slightly above the pusher carriage 600'.
  • the cylinder 506h' is connected to the arms 506' at an intermediate position 506m' in order to accomplish the desired flip ⁇ over of the bundle B1' along the trajectory T1' from the position P4' to the new outfeed position P5'.
  • the trajectory taken by the acme 506' is indicated by the dahsed lines T2' at the tip end of the arms 506'.
  • the pusher carriage 600' includes spring-loaded pusher arms 601'. By virtue of their spring loading, the arms 601' can pivot below the bundle B1' on their return motion. Illus tratively, the pusher 601' is operated by a cable cylinder 602' which is connected to the pusher 601' by a cable 602c'.
  • FIGURE 6 an outline is shown of the hopper 800' which receives the bundle B1' and successive ones.
  • the hopper is illustrated as having received approximately two bundles.
  • the output of the hopper includes paper feed rolls 801' which receive individual sheets at the base of the hopper and feed them successively to a utilization device such as a printing press.
  • the hopper is mounted on a feed table 802' which is, in turn, supported by a press kicker frame 803'. The latter is adjustably movable along press tracks 804'.
  • the feed table 802' includes a back ledge support 805' for the pusher carriage 600'.
  • the separator 400' is not pivoted like its counterpart 400 in FIUGRE 3 but instead is horizontally displacable with respect to a peel-off pusher carriage 401' that is operated by a cable cylinder 401c' in a fashion similar to that described for the pusher 601' on the carriage 600'.
  • the separator 400' also includes a counterbalance and pivot cylinder 403' for adjusting the level of the separator with respeect to a pivot point 403p'.
  • the pusher carriage 401' includes a spring-loaded, pusher plate 402' which acts against the stack S and picks off the desired bundle B1'. In the case of the embodimeht. of FIGURE 6, there is no bundle conveyor and the pusher plate 402' pushes the bundle Bl' over the knee K' formed by a roller 304'.
  • the stack is positioned on a lift 200' which is fed by a telescoping infeed conveyor 100'.
  • a stack enters the elevator area and is positioned on the lift.
  • the rollers included in the lift can be depressed below the level of the telescoping conveyor 100'.
  • the lift 200' then raises the load to the peel off position.
  • the height of the load in the embodiment of FIGURE 6 is established by a level control microswitch 404' which interrupts the lifting action.
  • the pusher plate 402' separates and lifts a bundle B1' from the stack S as shown and moves it over the roller 304' along a trajectory T3'.
  • the bundle drops until its leading edges contact the surface of the carriage 600' and its faces are in contact with one another upon the inclined support 501'.
  • Side plates for squaring including the plate 502-2' are used to align the side edges of the sheets in position P4'. With the side plates in squaring position, the sheets are upset by the flip-over arms 506' as previously described.
  • the pusher 601' is started up the ramp 600' to load the press feeder 800'. Because of the shape of the pushing front edge of the pusher 601', there is a cam effect at the end of the pushing stroke.
  • the pusher With the prior batch in the hopper 800', the pusher returns to the position shown in FIGURE 6. If there is a subsequent bundle B1' at the position P4', the pusher 601', by virtue of its spring-loading is depressed below the level of the bundle B1'.
  • the peel-off plate 402' is also returned to its original position. Any necessary clearance for the return of the plate 402' during retranction is achieved by the upward pivoting of the separator frame 400' about the pivot point 403' by operating the pivot cylinder 403'.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

Transport de piles de matériaux en feuilles jusqu'à une position d'alimentation. Une pile de feuilles est soulevée par un élévateur de piles (200) contre une butée (301). Des groupes de feuilles sont retirés par un séparateur (400) jusqu'à une position de refoulement, puis, les groupes sont amenés sur une plate-forme d'alimentation (600).
EP19840902964 1983-07-08 1984-07-07 Transport de materiauxen feuilles. Withdrawn EP0153344A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51195883A 1983-07-08 1983-07-08
US511958 1983-07-08

Publications (2)

Publication Number Publication Date
EP0153344A1 EP0153344A1 (fr) 1985-09-04
EP0153344A4 true EP0153344A4 (fr) 1985-11-07

Family

ID=24037119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840902964 Withdrawn EP0153344A4 (fr) 1983-07-08 1984-07-07 Transport de materiauxen feuilles.

Country Status (4)

Country Link
EP (1) EP0153344A4 (fr)
JP (1) JPS60501808A (fr)
AU (1) AU3157284A (fr)
WO (1) WO1985000346A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616230A1 (de) * 1986-05-14 1987-11-19 Stellram Gmbh Bohrwerkzeug

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870167A (en) * 1973-10-03 1975-03-11 Kimberly Clark Co Sheet pulp separator and feeder for baled pulp

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013156B (de) * 1954-06-26 1957-08-01 Willi Berberich Verfahren und Vorrichtung zum Foerdern von Blaettern in Papier od. dgl. verarbeitenden Maschinen
US3176859A (en) * 1961-06-27 1965-04-06 Beloit Eastern Corp Stack divider
US3206042A (en) * 1963-04-17 1965-09-14 Peterson Eric Ronald Multiple sheet handling device
US3447696A (en) * 1967-09-11 1969-06-03 Koppers Co Inc Stacking system for paperboard blanks
US3908836A (en) * 1974-05-01 1975-09-30 Takashi Ikeda Apparatus for supplying sheets to a sheet processing machine in successive stacks
FR2313294A1 (fr) * 1975-06-03 1976-12-31 Martin Sa Procede et dispositif d'alimentation automatique d'une machine de traitement de produits en plaques
CH639045A5 (fr) * 1981-02-03 1983-10-31 Bobst Sa Dispositif pour introduire des paquets de feuilles dans une machine les travaillant.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870167A (en) * 1973-10-03 1975-03-11 Kimberly Clark Co Sheet pulp separator and feeder for baled pulp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8500346A1 *

Also Published As

Publication number Publication date
EP0153344A1 (fr) 1985-09-04
JPS60501808A (ja) 1985-10-24
AU3157284A (en) 1985-02-07
WO1985000346A1 (fr) 1985-01-31

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