EP0939043A1 - Conveyor - Google Patents

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Publication number
EP0939043A1
EP0939043A1 EP98123136A EP98123136A EP0939043A1 EP 0939043 A1 EP0939043 A1 EP 0939043A1 EP 98123136 A EP98123136 A EP 98123136A EP 98123136 A EP98123136 A EP 98123136A EP 0939043 A1 EP0939043 A1 EP 0939043A1
Authority
EP
European Patent Office
Prior art keywords
locking
chain
transport device
disc
bolt
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.)
Granted
Application number
EP98123136A
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German (de)
French (fr)
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EP0939043B1 (en
Inventor
Klaus Lederer
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.)
Sigloch Maschinenbau GmbH and Co KG
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Sigloch Maschinenbau GmbH and Co KG
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Publication of EP0939043A1 publication Critical patent/EP0939043A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C19/00—Multi-step processes for making books
    • B42C19/08—Conveying between operating stations in machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/43—Gathering; Associating; Assembling
    • B65H2301/434—In channels, e.g. in which the articles are substantially vertical or inclined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/30—Chain drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/70—Other elements in edge contact with handled material, e.g. registering, orientating, guiding devices
    • B65H2404/73—Means for sliding the handled material on a surface, e.g. pushers
    • B65H2404/731—Means for sliding the handled material on a surface, e.g. pushers moved in a path enclosing an area
    • B65H2404/7312—Means for sliding the handled material on a surface, e.g. pushers moved in a path enclosing an area by means of chains

Definitions

  • the present invention relates to a transport device, in particular for feeding objects slidingly guided in a guide channel, according to the preamble of claim 1.
  • Such transport devices are known and are used, for example, as a so-called transport chain system for the continuous conveyance of book blocks in a book block channel of a book spine gluing and folding machine, as described, for example, in the company brochure Buckeback gluing and felling machine SB-3000 "from Sigloch Maschinenbau GmbH, Kuenzelsau, April 1992. From this company brochure a transport chain system with a revolving driven chain is known which comprises feed pins which are displaceable transversely to the chain running direction.
  • the feed pins are such in the The chain is mounted so that when the chain is deflected, it does not protrude into the beginning of the book block channel
  • a shooting cylinder assigned to the circumferential transport chain is provided, by means of which the feed pins selectively project into a book block channel
  • a locking disk which rotates on the deflection shaft of the transport chain is provided, the locking recesses (or teeth) of which exactly match the arrangement of the feed pins in the oil correspond to the sports chain, that is to say each locking pin of the locking disc, which rotates at the same deflection speed, is radially assigned to each feed pin rotating around the deflection pitch circle of the transport chain.
  • the radius of the locking disc corresponds to approximately 3 ⁇ 4 of the deflection radius of the chain.
  • the insertion cylinder is arranged on an arm mounted on the deflection shaft, which can be brought into a rotationally fixed connection with the locking disc and whose length is somewhat larger than the deflection radius of the transport chain.
  • the distance of the insertion cylinder on the arm to the deflection shaft corresponds exactly to the deflection radius, so that when the arm is connected to the locking disc in a rotationally fixed connection, the insertion cylinder is set into a partial circular movement with the deflecting radius of the transport chain, the partial circle being a maximum of an eighth circle.
  • a locking device which is connected to the arm and comprises a pneumatic cylinder arranged radially to the locking disk, which acts on a bolt which is movable radially to the locking disk.
  • the pneumatic cylinder is actuated by means of a control signal triggered by a sensor that detects the rotating feed pins, and the bolt is inserted into the locking recess of the locking disk corresponding to the desired feed pin.
  • the rotationally fixed connection between the locking disc and the insertion cylinder is established, which at this moment is located coaxially with the desired feed pin and then runs along with it on its deflection path.
  • the object of the invention is a transport device to provide the type mentioned above, the higher Number of cycles allowed when the feed pins are shot.
  • a transport device with the Features of claim 1 proposed.
  • Design of the locking disc with a radius that is less than or equal to is 0.6 times the deflection radius of the chain, the mass to be moved the transport device is reduced and there is more space for the arrangement the shooting cylinder and the locking device are available, so that the angle of the maximum possible for the insertion cylinder Pitch circle movement can be increased to 90 ° or more.
  • high cycle rates i.e.
  • the radius of the locking disc is less than or equal to 0.4 times the deflection radius and in a particularly advantageous manner Design, the radius of the locking disc is 0.3 times the deflection radius of the chain.
  • a transport device with the features of claim 4 proposed. Accordingly, it is for locking of the shooting cylinder with the locking disc to engage in the Locking washer serving bolt provided, the non-radial to the locking washer is mobile.
  • This measure according to the invention is a Avoid applying normal force to the locking disc through the bolt, which leads to inaccuracies, especially at high cycle rates bar cannot be exactly balanced in the locking recess are.
  • the non-radial movement of the bolt according to the invention to the locking disc is carried out in particular by an arcuate movement of the bolt, causing an oblique position of the bolt with respect to the locking disc is achieved.
  • the arc-shaped movement advantageously takes place of the bolt in the opposite direction to the direction of rotation of the locking disc, whereby a particularly good engagement of the bolt in the locking recesses the locking disc is guaranteed.
  • the single figure shows a transport device according to the invention in schematic side view.
  • Figure 1 shows a transport device 10 according to the invention with a revolving driven chain 12 in the direction of the arrows is deflected around a deflection shaft 18 and thereby a deflection radius R described.
  • the chain 12 carries feed pins 14, of which for reasons of clarity in the section of the chain shown at the bottom left in the figure 12 eight pins are indicated schematically.
  • the feed pins 14 are with its longitudinal axis can be moved transversely to the umlaut direction of the chain 12 in this arranged.
  • the transport device 10 further comprises a locking disc 20, the is rotatably arranged on the deflection shaft 18 of the chain 12.
  • the locking disc 20 includes recesses 22, being in the deflection area the chain 12 of each recess 22 in the radial direction a feed pin 14 is assigned.
  • the radius r is the locking disk 20 less than or equal to 0.6 times the deflection radius R. In the in the figure shown preferred embodiment is the radius r of Locking disc 20 0.31 times the deflection radius R.
  • the deflection shaft 18 there is also a radial distance from the deflection shaft 18 extending arm 17 mounted, at the end remote from the shaft infeed cylinder aligned parallel to the deflection shaft 18 and the chain 12 16 is arranged, the distance of the insertion cylinder 16 on the arm 17 of the deflection shaft 18 exactly the deflection radius R corresponds.
  • the arm 17 and thus also the shooting cylinder attached to the arm 17 16 are in a by locking with the locking disc 20 Pitch circle movement can be offset with the turning radius R.
  • the Locking device comprises a bolt 24, which has its longitudinal axis is arranged non-radially to the locking disc 20 and by means of a about an axis of rotation 28 pivotable locking lever in an arc on the Locking disc 20 too movable and avoiding the application of normal forces with a locking recess 22 of the locking disc 20 in engagement is feasible.
  • the locking lever 26 is actuated by means of a pneumatic cylinder 30, 26 to adjust the rest position of the locking lever at the end of the locking lever 26 remote from the bolt 24, a stop element 34 cooperates with a stopper 32.
  • the locking lever 26 and the Pneumatic cylinders 30 are at an acute angle on a circular segment disc 36 arranged with its center of circle in such a way on the deflection shaft 18 is arranged that the locking disc 20 on the inside of the acute angle formed by locking lever 26 and pneumatic cylinder 30 comes to rest in a space-saving manner.
  • the circular segment disc 36 is formed by a circular disk cut off along a chord 38, wherein the chord 38 faces the insertion cylinder 16 and perpendicular to the longitudinal axis of the arm 17 extends.
  • the circular segment disc 36 is with the arm 17 and thus the shooting cylinder 16 connected in a rotationally fixed manner;
  • the circular segment disc 36 and the arm 17 are advantageously in one piece educated.
  • the transport device 10 further comprises a logging cylinder 40 for the insertion cylinder 16.
  • the log cylinder 40 actuates one Rack 42 extending perpendicular to the deflection shaft 18, which on a Support element 44 is supported and with a (not shown) connected to the circular segment disc 36 or the arm 17 Toothed disk combs.
  • the dimensions of objects in one of the chain 12 assigned guide channel are to be promoted by means of feed, feed pins 14 selectively brought into a position projecting into the guide channel.
  • the items to be led are in particular book blocks to be transported through a book block channel.
  • Corresponding the dimensions of the book blocks is controlled via a control panel Feed distance, for example as the number of pins, after which is to be fed again.
  • About one (not closer shown) sensor the feed pins 14 are detected and counted. This advantageously takes place in the area of the deflection.
  • a control signal is output by which the pneumatic cylinder 30 is actuated.
  • the locking lever 26 is pivoted about its axis of rotation 28 making the latch 24 arcuate into the desired one Feed pin associated with the recess 22 of the locking disc 20 is inserted becomes.
  • the arcuate movement of the bolt 24 takes place in opposite directions to the direction of rotation of the locking disk 20. This is the invention achieved that especially at high clock speeds and faster Speed of rotation of the locking disc 20 incorrect interventions of the bolt 24 avoided or reduced in the locking recess 22 of the locking disc 20 become.
  • Faulty interventions are, in particular, if the bolt in the area between two adjacent recesses 22 strikes the locking disc 20 and into the undesired locking recess slips, or for non-centric engagement in the Desired locking recess if the locking disc rotates quickly the side wall of the recess on the not yet in full Engages locking bar 24 and acts on it in such a way that it does not fully engage in the recess.
  • the first one The described incorrect intervention has the consequence that an undesired Feed pin 14 is shot through the shooting cylinder 16, a misalignment during the last described faulty intervention of the shooting cylinder 16 to the desired feed pin 14 has the consequence that it does not hit correctly and therefore not or only is shot incompletely.
  • the insertion cylinder 16 moves in a partial circle offset with the deflection radius R, in which it is coaxial runs along with the feed pin 14 to be fired. During this moving Partial circle movement takes place an actuation of the insertion cylinder 16, so that this with its extending piston on the assigned moving feed pin 14 hits and this in the desired shoots into the guide channel projecting position.
  • the pneumatic cylinder 30 After shooting in, the pneumatic cylinder 30 is released and retrieved, whereby the engagement of the bolt 24 in the locking disc 20th is ended.
  • the arrangement is removed by the log cylinder 40 Circular segment disk 36 and arm 17 forcibly by the rack 42 and quickly returned to the starting position.
  • the described transport device allows Execution of very high cycle numbers even with short pitch intervals (low number of pins) because of the use of a small locking disc less mass to move and more space for the arrangement of the locking device and the shooting cylinder is available, whereby also the maximum angle of the partial circular movement of the injection cylinder is significantly increased.
  • By arranging the locking device on the described circular segment disc further a more balanced mass distribution compared to the prior art achieved, whereby the focus is in forward and backward Parts of the transport device to be displaced (Locking device, shooting cylinder) on or near the Deflection shaft is located.

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  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Feeding And Guiding Record Carriers (AREA)

Abstract

The transporter has a driven chain (12) and a non-turnable locking plate (20) on the chain deflector shaft (18). The diameter of the locking plate is smaller than or corresponds to 0,6 times the deflector radius of the chain. To lock an interleaving cylinder (16) to the locking plate, a bolt (24) engaging into the plate moves non-radially relative to that plate. The bolt movement is opposite to the rotating direction of the locking plate. The bolt is located on a pivoted locking lever (26).

Description

Die vorliegende Erfindung betrifft eine Transportvorrichtung, insbesondere zum Vorschub von in einem Führungskanal gleitend geführten Gegenständen, gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a transport device, in particular for feeding objects slidingly guided in a guide channel, according to the preamble of claim 1.

Derartige Transportvorrichtungen sind bekannt und dienen beispielsweise als sogenanntes Transportkettensystem zur kontinuierlichen Förderung von Buchblocks in einem Buchblockkanal einer Buchrückenbeleim- und Fälzelmaschine, wie sie beispielsweise in dem Firmenprospekt

Figure 00010001
Buckrückenbeleim- und Fälzelmaschine SB-3000" der Sigloch Maschinenbau GmbH, Künzelsau, April 1992, beschrieben ist. Aus diesem Firmenprospekt ist ein Transportkettensystem mit einer umlaufend angetriebenen Kette bekannt, die quer zu der Kettenlaufrichtung verschiebbar angeordnete Vorschubstifte umfaßt. Die Vorschubstifte sind derart in der Kette gelagert, daß sie beim Umlenken der Kette am Beginn des Buchblockkanals nicht in diesen hineinragen. Zur Anpassung an unterschiedliche Abmessungen der durch den Buchblockkanal zu transportierenden Buchblocks ist ein der umlaufenden Transportkette zugeordneter Einschießzylinder vorgesehen, mittels welchem die Vorschubstifte selektiv in eine in den Buchblockkanal ragende Position bringbar sind. Zur Ansteuerung der selektiven Betätigung des Einschießzylinders ist eine auf der Umlenkwelle der Transportkette drehfest mitlaufende Rastscheibe vorgesehen, deren Rastausnehmungen (bzw. - zähne) exakt der Anordnung der Vorschubstifte in der Transportkette entsprechen, d.h. jedem am Umlenkteilkreis der Transportkette umlaufenden Vorschubstift ist ein mit der gleichen Umlenkgeschwindigkeit mitlaufendes Rastelement der Rastscheibe radial zugeordnet. Der Radius der Rastscheibe entspricht etwa ¾ des Umlenkradius der Kette. Der Einschießzylinder ist an einem auf der Umlenkwelle gelagerten Arm angeordnet, der mit der Rastscheibe in drehfeste Verbindung bringbar ist und dessen Länge etwas größer ist als der Umlenkradius der Transportkette. Die Entfernung des Einschießzylinders an dem Arm zu der Umlenkwelle entspricht genau dem Umlenkradius, so daß der Einschießzylinder bei drehfester Verbindung des Armes mit der Rastscheibe in eine Teilkreisbewegung mit dem Umlenkradius der Transportkette versetzt wird, wobei der Teilkreis maximal ein Achtelkreis ist. Zur Herstellung der drehfesten Verbindung zwischen dem Arm und der Rastscheibe ist eine mit dem Arm verbundene Verriegelungsvorrichtung vorgesehen, die einen radial zu der Rastscheibe angeordneten Pneumatikzylinder umfaßt, der auf einen radial zu der Rastscheibe beweglichen Riegel einwirkt. In Abhängigkeit von der über einen elektronischen Vorwahlzähler eingestellten Teilungsabstand für die Transportkette wird der Pneumatikzylinder mittels eines durch einen die umlaufenden Vorschubstifte erfassenden Sensor getriggerten Steuersignals betätigt und der Riegel in die dem gewünschten Vorschubstift entsprechende Rastausnehmung der Rastscheibe eingeführt. Dadurch wird die drehfeste Verbindung zwischen der Rastscheibe und dem Einschießzylinder hergestellt, der sich zu diesem Moment koaxial zu dem gewünschten Vorschubstift befindet und daraufhin mit diesem auf dessen Umlenkbahn mitläuft. Durch Betätigung des Einschießzylinders mittels eines im Anschluß an die Herstellung der drehfesten Verbindung zwischen Rastscheibe und Einschießzylinder erzeugten Steuersignals wird der Vorschubstift in eine in den Buchblockkanal hineinragende Mitnehmerstellung geschossen". Such transport devices are known and are used, for example, as a so-called transport chain system for the continuous conveyance of book blocks in a book block channel of a book spine gluing and folding machine, as described, for example, in the company brochure
Figure 00010001
Buckeback gluing and felling machine SB-3000 "from Sigloch Maschinenbau GmbH, Kuenzelsau, April 1992. From this company brochure a transport chain system with a revolving driven chain is known which comprises feed pins which are displaceable transversely to the chain running direction. The feed pins are such in the The chain is mounted so that when the chain is deflected, it does not protrude into the beginning of the book block channel In order to adapt to different dimensions of the book blocks to be transported through the book block channel, a shooting cylinder assigned to the circumferential transport chain is provided, by means of which the feed pins selectively project into a book block channel In order to control the selective actuation of the infeed cylinder, a locking disk which rotates on the deflection shaft of the transport chain is provided, the locking recesses (or teeth) of which exactly match the arrangement of the feed pins in the oil correspond to the sports chain, that is to say each locking pin of the locking disc, which rotates at the same deflection speed, is radially assigned to each feed pin rotating around the deflection pitch circle of the transport chain. The radius of the locking disc corresponds to approximately ¾ of the deflection radius of the chain. The insertion cylinder is arranged on an arm mounted on the deflection shaft, which can be brought into a rotationally fixed connection with the locking disc and whose length is somewhat larger than the deflection radius of the transport chain. The distance of the insertion cylinder on the arm to the deflection shaft corresponds exactly to the deflection radius, so that when the arm is connected to the locking disc in a rotationally fixed connection, the insertion cylinder is set into a partial circular movement with the deflecting radius of the transport chain, the partial circle being a maximum of an eighth circle. To produce the rotationally fixed connection between the arm and the locking disk, a locking device is provided which is connected to the arm and comprises a pneumatic cylinder arranged radially to the locking disk, which acts on a bolt which is movable radially to the locking disk. Depending on the division distance set for the transport chain by means of an electronic preselection counter, the pneumatic cylinder is actuated by means of a control signal triggered by a sensor that detects the rotating feed pins, and the bolt is inserted into the locking recess of the locking disk corresponding to the desired feed pin. As a result, the rotationally fixed connection between the locking disc and the insertion cylinder is established, which at this moment is located coaxially with the desired feed pin and then runs along with it on its deflection path. By actuating the insertion cylinder by means of a control signal generated following the establishment of the non-rotatable connection between the locking disk and the insertion cylinder, the feed pin moves into a driver position projecting into the book block channel shot ".

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, eine Transportvorrichtung der eingangs genannten Art bereitzustellen, die eine höhere Taktzahl beim Einschießen der Vorschubstifte gestattet.Proceeding from this, the object of the invention is a transport device to provide the type mentioned above, the higher Number of cycles allowed when the feed pins are shot.

Zur Lösung dieser Aufgabe wird eine Transportvorrichtung mit den Merkmalen des Anspruches 1 vorgeschlagen. Durch die erfindungsgemäße Ausgestaltung der Rastscheibe mit einem Radius, der kleiner oder gleich dem 0,6-fachen Umlenkradius der Kette ist, wird die zu bewegende Masse der Transportvorrichtung verringert und es steht mehr Platz für die Anordnung des Einschießzylinders und der Verriegelungsvorrichtung zur Verfügung, so daß der Winkel der für den Einschießzylinder maximal möglichen Teilkreisbewegung auf 90° oder mehr erhöht werden kann. Insbesondere bei hohen Taktzahlen, d.h. bei schnellem Kettenumlauf und kurzen Buchblockabmessungen, kann bei einer Teilkreisbewegung des Einschießzylinders von maximal 45° aufgrund der zu kurzen Mitlaufzeit mit dem einzuschießenden Vorschubstift kein Einschießen mehr erfolgen bzw. der Einschießzylinder nicht rechtzeitig wieder in seine Ausgangsstellung zurückkehren, um in koaxialer Ausrichtung mit dem nächsten einzuschießenden Vorschubstift in Verriegelung gebracht zu werden.To solve this problem, a transport device with the Features of claim 1 proposed. By the invention Design of the locking disc with a radius that is less than or equal to is 0.6 times the deflection radius of the chain, the mass to be moved the transport device is reduced and there is more space for the arrangement the shooting cylinder and the locking device are available, so that the angle of the maximum possible for the insertion cylinder Pitch circle movement can be increased to 90 ° or more. Especially at high cycle rates, i.e. with fast chain circulation and short book block dimensions, can with a partial circular movement of the injection cylinder of maximum 45 ° due to the too short tracking time with the one to be shot Feed pin no longer shoot in or the shooting cylinder do not return to its starting position in time, to co-align with the next one Feed pin to be locked.

In vorteilhafter Ausgestaltung der Erfindung ist der Radius der Rastscheibe kleiner oder gleich dem 0,4-fachen Umlenkradius und in besonders vorteilhafter Ausgestaltung beträgt der Radius der Rastscheibe das 0,3-fache des Umlenkradius der Kette. Bei diesen Größenverhältnissen können besonders hohe Taktzahlen erreicht werden, ohne daß der Umfang für die Rastscheibe für das Anbringen der den Vorschubstiften zugeordneten Rastausnehmungen zu klein ist. In an advantageous embodiment of the invention, the radius of the locking disc is less than or equal to 0.4 times the deflection radius and in a particularly advantageous manner Design, the radius of the locking disc is 0.3 times the deflection radius of the chain. With these proportions can be special high cycle rates can be achieved without the scope for the Locking disc for attaching the locking recesses assigned to the feed pins is too small.

Zur weiteren Lösung der Erfindung wird eine Transportvorrichtung mit den Merkmalen des Anspruches 4 vorgeschlagen. Demnach ist zur Verriegelung des Einschießzylinders mit der Rastscheibe ein zum Eingriff in die Rastscheibe dienender Riegel vorgesehen, der nicht-radial zu der Rastscheibe beweglich ist. Durch diese erfindungsgemäße Maßnahme wird eine Normalkraftbeaufschlagung der Rastscheibe durch den Riegel vermieden, wodurch insbesondere bei hohen Taktzahlen Ungenauigkeiten bei nicht exakt zentrisch in die Rastausnehmung eingreifendem Riegel ausgleichbar sind. Die erfindungsgemäße nicht-radiale Bewegung des Riegels zu der Rastscheibe erfolgt insbesondere durch ein bogenförmiges Bewegen des Riegels, wodurch eine Schrägstellung des Riegels bezuglich der Rastscheibe erzielt wird. Vorteilhafterweise erfolgt die bogenförmige Bewegung des Riegels gegensinnig zu der Drehrichtung der Rastscheibe, wodurch ein besonders guter Eingriff des Riegels in die Rastausnehmungen der Rastscheibe gewährleistet ist.To further solve the invention, a transport device with the features of claim 4 proposed. Accordingly, it is for locking of the shooting cylinder with the locking disc to engage in the Locking washer serving bolt provided, the non-radial to the locking washer is mobile. This measure according to the invention is a Avoid applying normal force to the locking disc through the bolt, which leads to inaccuracies, especially at high cycle rates bar cannot be exactly balanced in the locking recess are. The non-radial movement of the bolt according to the invention to the locking disc is carried out in particular by an arcuate movement of the bolt, causing an oblique position of the bolt with respect to the locking disc is achieved. The arc-shaped movement advantageously takes place of the bolt in the opposite direction to the direction of rotation of the locking disc, whereby a particularly good engagement of the bolt in the locking recesses the locking disc is guaranteed.

Weitere Ausgestaltungen der Erfindung sind in den Unteransprüchen beschrieben.Further refinements of the invention are described in the subclaims.

Die Erfindung ist anhand eines Ausführungsbeispieles in der Zeichnung schematisch dargestellt und wird im folgenden unter Bezugnahme auf die Zeichnung ausführlich beschrieben.The invention is based on an embodiment in the drawing schematically illustrated and is described below with reference to the Drawing described in detail.

Die einzige Figur zeigt eine erfindungsgemäße Transportvorrichtung in schematischer seitlicher Ansicht. The single figure shows a transport device according to the invention in schematic side view.

Figur 1 zeigt eine erfindungsgemäße Transportvorrichtung 10 mit einer umlaufend angetriebenen Kette 12, die im Sinne der eingezeichneten Pfeile um eine Umlenkwelle 18 umgelenkt wird und dabei einen Umlenkradius R beschriebt.Figure 1 shows a transport device 10 according to the invention with a revolving driven chain 12 in the direction of the arrows is deflected around a deflection shaft 18 and thereby a deflection radius R described.

Die Kette 12 trägt Vorschubstifte 14, von denen aus Gründen der Übersichtlichkeit im in der Figur links unten dargestellten Abschnitt der Kette 12 acht Stifte schematisch angedeutet sind. Die Vorschubstifte 14 sind mit ihrer Längsachse quer zu der Umlautrichtung der Kette 12 in dieser verschiebbar angeordnet.The chain 12 carries feed pins 14, of which for reasons of clarity in the section of the chain shown at the bottom left in the figure 12 eight pins are indicated schematically. The feed pins 14 are with its longitudinal axis can be moved transversely to the umlaut direction of the chain 12 in this arranged.

Die Transportvorrichtung 10 umfaßt des weiteren eine Rastscheibe 20, die drehfest auf der Umlenkwelle 18 der Kette 12 angeordnet ist. Die Rastscheibe 20 umfaßt Rastausnehmungen 22, wobei in dem Umlenkbereich der Kette 12 jeder Rastausnehmung 22 in radialer Richtung ein Vorschubstift 14 zugeordnet ist. Erfindungsgemäß ist der Radius r der Rastscheibe 20 kleiner oder gleich dem 0,6-fachen Umlenkradius R. In dem in der Figur dargestellten bevorzugten Ausführungsbeispiel beträgt der Radius r der Rastscheibe 20 das 0,31-fache des Umlenkradius R.The transport device 10 further comprises a locking disc 20, the is rotatably arranged on the deflection shaft 18 of the chain 12. The locking disc 20 includes recesses 22, being in the deflection area the chain 12 of each recess 22 in the radial direction a feed pin 14 is assigned. According to the invention, the radius r is the locking disk 20 less than or equal to 0.6 times the deflection radius R. In the in the figure shown preferred embodiment is the radius r of Locking disc 20 0.31 times the deflection radius R.

Auf der Umlenkwelle 18 ist des weiteren ein sich radial von der Umlenkwelle 18 erstreckender Arm 17 gelagert, an dessen wellenfernen Ende ein parallel zu der Umlenkwelle 18 und der Kette 12 ausgerichteter Einschießzylinder 16 angeordnet ist, wobei die Entfernung des Einschießzylinders 16 auf dem Arm 17 von der Umlenkwelle 18 genau dem Umlenkradius R entspricht. Der Arm 17 und somit auch der an dem Arm 17 befestigte Einschießzylinder 16 sind durch Verriegelung mit der Rastscheibe 20 in eine Teilkreisbewegung mit dem Umlenkradius R versetzbar. On the deflection shaft 18 there is also a radial distance from the deflection shaft 18 extending arm 17 mounted, at the end remote from the shaft infeed cylinder aligned parallel to the deflection shaft 18 and the chain 12 16 is arranged, the distance of the insertion cylinder 16 on the arm 17 of the deflection shaft 18 exactly the deflection radius R corresponds. The arm 17 and thus also the shooting cylinder attached to the arm 17 16 are in a by locking with the locking disc 20 Pitch circle movement can be offset with the turning radius R.

Zum Herstellen der Verriegelung des Armes 17 mit der Rastscheibe 20 ist eine Verriegelungsvorrichtung 24, 26, 28, 30, 32, 34, 36 vorgesehen. Die Verriegelungsvorrichtung umfaßt einen Riegel 24, der mit seiner Längsachse nicht-radial zu der Rastscheibe 20 angeordnet ist und mittels eines um eine Drehachse 28 schwenkbaren Rasthebels bogenförmig auf die Rastscheibe 20 zu bewegbar und unter Vermeidung einer Normalkraftbeaufschlagung mit einer Rastausnehmung 22 der Rastscheibe 20 in Eingriff bringbar ist. Die Betätigung des Rasthebels 26 erfolgt mittels eines Pneumatikzylinders 30, wobei zur Einstellung der Ruhelage des Rasthebels 26 an dem dem Riegel 24 fernen Ende des Rasthebels 26 ein Anschlagelement 34 mit einem Stopper 32 zusammenwirkt. Der Rasthebel 26 und der Pneumatikzylinder 30 sind in spitzem Winkel auf einer Kreissegmentscheibe 36 angeordnet, die mit ihrem Kreismittelpunkt derart auf der Umlenkwelle 18 angeordnet ist, daß die Rastscheibe 20 an der Innenseite des durch Rasthebel 26 und Pneumatikzylinder 30 gebildeten spitzen Winkels in platzsparender Weise zu liegen kommt. Die Kreissegmentscheibe 36 ist durch eine entlang einer Sehne 38 abgeschnittenen Kreisscheibe gebildet, wobei die Sehne 38 zu dem Einschießzylinder 16 weist und senkrecht zu der Längsachse des Armes 17 verläuft. Die Kreissegmentscheibe 36 ist mit dem Arm 17 und somit dem Einschießzylinder 16 drehfest verbunden; vorteilhafterweise sind die Kreissegmentscheibe 36 und der Arm 17 einteilig ausgebildet.To lock the arm 17 with the locking disc 20 is a locking device 24, 26, 28, 30, 32, 34, 36 is provided. The Locking device comprises a bolt 24, which has its longitudinal axis is arranged non-radially to the locking disc 20 and by means of a about an axis of rotation 28 pivotable locking lever in an arc on the Locking disc 20 too movable and avoiding the application of normal forces with a locking recess 22 of the locking disc 20 in engagement is feasible. The locking lever 26 is actuated by means of a pneumatic cylinder 30, 26 to adjust the rest position of the locking lever at the end of the locking lever 26 remote from the bolt 24, a stop element 34 cooperates with a stopper 32. The locking lever 26 and the Pneumatic cylinders 30 are at an acute angle on a circular segment disc 36 arranged with its center of circle in such a way on the deflection shaft 18 is arranged that the locking disc 20 on the inside of the acute angle formed by locking lever 26 and pneumatic cylinder 30 comes to rest in a space-saving manner. The circular segment disc 36 is formed by a circular disk cut off along a chord 38, wherein the chord 38 faces the insertion cylinder 16 and perpendicular to the longitudinal axis of the arm 17 extends. The circular segment disc 36 is with the arm 17 and thus the shooting cylinder 16 connected in a rotationally fixed manner; The circular segment disc 36 and the arm 17 are advantageously in one piece educated.

Die Transportvorrichtung 10 umfaßt des weiteren einen Rückholzylinder 40 für den Einschießzylinder 16. Der Rückholzylinder 40 betätigt eine senkrecht zu der Umlenkwelle 18 verlaufende Zahnstange 42, die auf einem Stützelement 44 abgestützt ist und mit einer (nicht näher dargestellten) mit der Kreissegmentscheibe 36 bzw. dem Arm 17 verbundenen Zahnscheibe kämmt.The transport device 10 further comprises a logging cylinder 40 for the insertion cylinder 16. The log cylinder 40 actuates one Rack 42 extending perpendicular to the deflection shaft 18, which on a Support element 44 is supported and with a (not shown) connected to the circular segment disc 36 or the arm 17 Toothed disk combs.

Im Betrieb der erfindungsgemäßen Transportvorrichtung 10 werden entsprechend den Abmessungen von Gegenständen, die in einem der Kette 12 zugeordneten Führungskanal mittels Vorschub zu fördern sind, Vorschubstifte 14 selektiv in eine in den Führungskanal ragende Position gebracht. Bei den zu führenden Gegenständen handelt es sich insbesondere um durch einen Buchblockkanal zu transportierende Buchblocks. Entsprechend den Abmessungen der Buchblocks wird über ein Bedienpult der Vorschubabstand, beispielsweise als diejenige Anzahl von Stiften, nach der wieder ein Vorschub erfolgen soll, eingegeben. Über einen (nicht näher dargestellten) Sensor werden die Vorschubstifte 14 erfaßt und gezählt. Dies erfolgt vorteilhafterweise im Bereich der Umlenkung.In operation of the transport device 10 according to the invention the dimensions of objects in one of the chain 12 assigned guide channel are to be promoted by means of feed, feed pins 14 selectively brought into a position projecting into the guide channel. The items to be led are in particular book blocks to be transported through a book block channel. Corresponding the dimensions of the book blocks is controlled via a control panel Feed distance, for example as the number of pins, after which is to be fed again. About one (not closer shown) sensor, the feed pins 14 are detected and counted. This advantageously takes place in the area of the deflection.

Sobald von dem Sensor eine der Vorgabe entsprechende Anzahl an Vorschubstiften erfaßt wurde, wird ein Steuersignal ausgegeben, durch welches der Pneumatikzylinder 30 betätigt wird. Durch Betätigung des Pneumatikzylinders 30 wird der Rasthebel 26 um seine Drehachse 28 geschwenkt` wodurch der Riegel 24 bogenförmig in die dem gewünschten Vorschubstift zugeordnete Rastausnehmung 22 der Rastscheibe 20 eingeführt wird. Die bogenförmige Bewegung des Riegels 24 erfolgt dabei gegensinnig zu der Umlaufrichtung der Rastscheibe 20. Dadurch wird erfindungsgemäß erreicht, daß insbesondere bei hohen Taktzahlen und schneller Drehgeschwindigkeit der Rastscheibe 20 fehlerhafte Eingriffe des Riegels 24 in die Rastausnehmung 22 der Rastscheibe 20 vermieden bzw. verringert werden. Um fehlerhafte Eingriffe handelt es sich insbesondere, wenn der Riegel im Bereich zwischen zwei benachbarten Rastausnehmungen 22 auf die Rastscheibe 20 auftrifft und in die nicht gewünschte Rastausnehmung abrutscht, oder auch um nicht-zentrischen Eingriff in die gewünschte Rastausnehmung, wenn bei schnell umlaufender Rastscheibe die Seitenwand der Rastausnehmung auf den sich noch nicht im vollständigen Eingriff befindenden Riegel 24 auftrifft und diesen derart beaufschlägt, daß er nicht vollständig in die Rastausnehmung eingreift. Der zuerst geschilderte Fehleingriff hat zur Folge, daß ein nicht gewünschter Vorschubstift 14 durch den Einschießzylinder 16 eingeschossen wird, während der zuletzt geschilderte Fehleingriff eine nicht-zentrische Ausrichtung des Einschießzylinders 16 zu dem gewünschten Vorschubstift 14 zur Folge hat, so daß dieser nicht richtig getroffen und somit nicht oder nur unvollständig eingeschossen wird.As soon as a number of feed pins corresponds to the specification from the sensor a control signal is output by which the pneumatic cylinder 30 is actuated. By actuating the pneumatic cylinder 30, the locking lever 26 is pivoted about its axis of rotation 28 making the latch 24 arcuate into the desired one Feed pin associated with the recess 22 of the locking disc 20 is inserted becomes. The arcuate movement of the bolt 24 takes place in opposite directions to the direction of rotation of the locking disk 20. This is the invention achieved that especially at high clock speeds and faster Speed of rotation of the locking disc 20 incorrect interventions of the bolt 24 avoided or reduced in the locking recess 22 of the locking disc 20 become. Faulty interventions are, in particular, if the bolt in the area between two adjacent recesses 22 strikes the locking disc 20 and into the undesired locking recess slips, or for non-centric engagement in the Desired locking recess if the locking disc rotates quickly the side wall of the recess on the not yet in full Engages locking bar 24 and acts on it in such a way that it does not fully engage in the recess. The first one The described incorrect intervention has the consequence that an undesired Feed pin 14 is shot through the shooting cylinder 16, a misalignment during the last described faulty intervention of the shooting cylinder 16 to the desired feed pin 14 has the consequence that it does not hit correctly and therefore not or only is shot incompletely.

Nach erfolgtem Herstellen der Verriegelung zwischen der Rastscheibe 20 und die damit erzeugte drehfeste Verbindung zwischen der Rastscheibe 20 und dem Einschießzylinder 16 wird der Einschießzylinder 16 in eine Teilkreisbewegung mit dem Umlenkradius R versetzt, in welcher er koaxial mit dem einzuschießenden Vorschubstift 14 mitläuft. Während dieser mitlaufenden Teilkreisbewegung erfolgt eine Betätigung des Einschießzylinders 16, so daß dieser mit seinem ausfahrenden Kolben auf den zugeordneten mitlaufenden Vorschubstift 14 auftrifft und diesen in die gewünschte in den Führungskanal ragende Position schießt.After the locking between the locking disk 20 has been established and the rotationally fixed connection thus generated between the locking disk 20 and the insertion cylinder 16, the insertion cylinder 16 moves in a partial circle offset with the deflection radius R, in which it is coaxial runs along with the feed pin 14 to be fired. During this moving Partial circle movement takes place an actuation of the insertion cylinder 16, so that this with its extending piston on the assigned moving feed pin 14 hits and this in the desired shoots into the guide channel projecting position.

Nach erfolgtem Einschießen wird der Pneumatikzylinder 30 gelöst und zurückgeholt, wodurch der Eingriff des Riegels 24 in die Rastscheibe 20 beendet wird. Durch den Rückholzylinder 40 wird die Anordnung aus Kreissegmentscheibe 36 und Arm 17 durch die Zahnstange 42 zwangsweise und schnell in die Ausgangsstellung zurückgeholt. After shooting in, the pneumatic cylinder 30 is released and retrieved, whereby the engagement of the bolt 24 in the locking disc 20th is ended. The arrangement is removed by the log cylinder 40 Circular segment disk 36 and arm 17 forcibly by the rack 42 and quickly returned to the starting position.

Die beschriebene erfindungsgemäße Transportvorrichtung gestattet die Durchführung sehr hoher Taktzahlen auch bei kurzen Teilungsabständen (niedrige Stiftzahlen), da durch die Verwendung einer kleinen Rastscheibe weniger Masse zu bewegen ist und mehr Platz für die Anordnung der Verriegelungsvorrichtung und des Einschießzylinders zur Verfügung steht, wodurch auch der maximale Winkel der Teilkreisbewegung des Einschießzylinders deutlich erhöht wird. Durch die Anordnung der Verriegelungsvorrichtung auf der beschriebenen Kreissegmentscheibe wird des weiteren eine im Vergleich zum Stand der Technik ausgewogenere Massenverteilung erreicht, wodurch sich der Schwerpunkt der in vor- und zurücklaufende Drehung zu versetzenden Teile der Transportvorrichtung (Verriegelungsvorrichtung, Einschießzylinder) auf oder in der Nähe der Umlenkwelle befindet.The described transport device according to the invention allows Execution of very high cycle numbers even with short pitch intervals (low number of pins) because of the use of a small locking disc less mass to move and more space for the arrangement of the locking device and the shooting cylinder is available, whereby also the maximum angle of the partial circular movement of the injection cylinder is significantly increased. By arranging the locking device on the described circular segment disc further a more balanced mass distribution compared to the prior art achieved, whereby the focus is in forward and backward Parts of the transport device to be displaced (Locking device, shooting cylinder) on or near the Deflection shaft is located.

Claims (9)

Transportvorrichtung, insbesondere zum Vorschub von in einem Führungskanal gleitend geführten Gegenständen, mit in einer umlaufend angetriebenen Kette (12) quer zu der Kette (12) verschiebbar angeordneten Vorschubstiften (14), die mittels eines Einschießzylinders (16) selektiv in eine in den Führungskanal ragende Position bringbar sind, wobei der Einschießzylinder (16) einer auf einer Umlenkwelle (18) der Kette (12) drehfest angeordneten Rastscheibe (20) zugeordnet und durch Verriegelung mit der Rastscheibe (20) in eine Teilkreisbewegung mit dem Umlenkradius (R) der Kette (12) versetzbar ist,
dadurch gekennzeichnet,
daß der Radius (r) der Rastscheibe (20) kleiner oder gleich dem 0,6-fachen Umlenkradius (R) der Kette (12) ist.Transport device, in particular for feeding objects slidably guided in a guide channel, with feed pins (14) which are displaceably arranged in a revolving chain (12) transversely to the chain (12) and which are selectively inserted into one projecting into the guide channel by means of a shooting cylinder (16) Position can be brought, the insertion cylinder (16) being assigned to a detent disk (20) arranged on the deflection shaft (18) of the chain (12) in a rotationally fixed manner and by locking with the detent disk (20) in a partial circular movement with the deflection radius (R) of the chain ( 12) can be moved,
characterized by
that the radius (r) of the locking disc (20) is less than or equal to 0.6 times the deflection radius (R) of the chain (12). Transportvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Radius (r) der Rastscheibe (20) kleiner oder gleich dem 0,4-fachen Umlenkradius (R) der Kette (12) ist.Transport device according to claim 1, characterized in that the radius (r) of the locking disc (20) is less than or equal to 0.4 times Deflection radius (R) of the chain (12). Transportvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Radius (r) der Rastscheibe (20) kleiner oder gleich dem 0,3-fachen Umlenkradius (R) der Kette (12) ist. Transport device according to claim 1 or 2, characterized in that that the radius (r) of the locking disc (20) is less than or equal to that 0.3 times the deflection radius (R) of the chain (12). Transportvorrichtung nach dem Oberbegriff des Anspruchs 1, dadurch gekennzeichnet, daß zur Verriegelung des Einschießzylinders (16) mit der Rastscheibe (20) ein zum Eingriff in die Rastscheibe (20) dienender Riegel (24) nicht-radial zu der Rastscheibe (20) beweglich ist.Transport device according to the preamble of claim 1, characterized characterized in that for locking the infeed cylinder (16) with the locking disc (20) serving to engage in the locking disc (20) Bolt (24) is not radially movable to the locking disc (20). Transportvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der Riegel (24) in eine bogenförmige Bewegung versetzbar ist.Transport device according to claim 4, characterized in that the bolt (24) can be set into an arcuate movement. Transportvorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die bogenförmige Bewegung des Riegels (24) gegensinnig zu der Drehrichtung der Rastscheibe (20) ist.Transport device according to claim 5, characterized in that the arcuate movement of the bolt (24) in the opposite direction to that Direction of rotation of the locking disc (20). Transportvorrichtung nach Anspruch 5 oder 6, gekennzeichnet durch einen um eine Drehachse (28) schwenkbaren Rasthebel (26), an dem der Riegel (24) in zu der Rastscheibe (20) nicht-radialer Stellung angeordnet ist.Transport device according to claim 5 or 6, characterized by a locking lever (26) which can be pivoted about an axis of rotation (28) and on which the bolt (24) is arranged in the non-radial position relative to the locking disc (20) is. Transportvorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß der Riegel (24) und dem Riegel (24) zugeordnete Betätigungselemente (26, 30) auf einer um die Umlenkwelle (18) in drehfester Verbindung mit dem Einschießzylinder (16) stehenden Scheibe angeordnet sind.Transport device according to one of claims 4 to 7, characterized characterized in that the bolt (24) and the bolt (24) assigned Actuators (26, 30) on one around the deflection shaft (18) in a rotationally fixed Connection with the shooting cylinder (16) standing disc are. Transportvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Scheibe eine Kreissegmentscheibe (36) ist.Transport device according to claim 8, characterized in that the disc is a circular segment disc (36).
EP98123136A 1998-02-26 1998-12-04 Conveyor Expired - Lifetime EP0939043B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19807815 1998-02-26
DE19807815A DE19807815A1 (en) 1998-02-26 1998-02-26 Transport device

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5343998A (en) * 1993-08-31 1994-09-06 R. R. Donnelley & Sons Company Method and apparatus for turning a block of signatures

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD284202A5 (en) * 1989-03-21 1990-11-07 Veb Inst. F. Getreideverarbeitung,Dd DEVICE FOR ASSEMBLING SMALL, MATERIAL ROUNDED OBJECTS

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5343998A (en) * 1993-08-31 1994-09-06 R. R. Donnelley & Sons Company Method and apparatus for turning a block of signatures

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Buchrückenbeleim- und Fälzelmaschine SB-3000 (Firmenprospekt)", 1 April 1992, SIGLOCH MASCHINENBAU GMBH, KÜNZELSAU (DE), XP002103949 *

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