DE3337671C1

DE3337671C1 - Traction mechanism conveyor path

Info

Publication number: DE3337671C1
Application number: DE19833337671
Authority: DE
Inventors: Peter Dipl.-Ing. 1000 Berlin Stiemert
Original assignee: Bosch Siemens Hausgerate GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 1983-10-17
Filing date: 1983-10-17
Publication date: 1984-08-23

Abstract

In a traction mechanism conveyor path for rotatable hangers for transporting workpieces, the hangers suspended from a hanger shaft (9) are to enter a processing station in one particular alignment of n >/= 3 suspension alignments. This object is to be achieved with mechanical means which are virtually immune to disturbance and are cheap. The solution provides for each hanger to have a turning knob (4) with a line of shafts (5) which is at the end, points upwards, has n shafts and on which at least one trunnion (7) of the hanger shaft (9) slides or rolls. In addition, when n >/= 3, 5, 7 etc. one rotary lever and, when n >/= 4, 6, 8 etc. two rotary levers (10, 11) is/are to be mounted on the side of the hanger shaft (9) mutually offset in terms of angle and level. In addition, the traction mechanism conveyor path contains upstream of the processing station in the direction of travel (2) of the hanger one or two stations with stops which project into the travelling path (12, 13) of the laterally projecting rotary levers (10, 11) and are mounted in a stationary fashion at the level of the rotary lever(s) (10, 11) on both sides of the travelling path (1) of the hanger shaft (9). The device according to the invention can, for example, be used for automatic transport devices in coating lines. <IMAGE>

Description

Es zeigt F i g. 1 einen Ausschnitt einer schematisch dargestellten Förderbahn in Seitenansicht, F i g 2 wie F i g. 1 in einer Ansicht von oben, F i g. 3 vier verschiedene Möglichkeiten des Einlaufes eines Gehänges mit vier möglichen Winkelstellungen in die erste Drehstation, F i g. 4 vier mögliche Einlaufarten eines Gehänges mit drei Winkelstellungen in die einzige Drehstation, F i g. 5 und F i g. 6 Beispiele für die Ausgestaltung eines Drehkopfes bei einem Gehänge mit vier möglichen Winkelstellungen und bei einem Gehänge mit drei möglichen Winkelstellungen.It shows F i g. 1 shows a section of a schematically illustrated Conveyor track in side view, FIG. 2 as FIG. 1 in a view from above, F i G. 3 four different ways of feeding a hanger with four possible Angular positions in the first turning station, F i g. 4 four possible inlet types one Hanging with three angular positions in the single turning station, F i g. 5 and FIG. 6 examples of the design of a rotating head in a hanger with four possible angular positions and with a hanger with three possible angular positions.

1 kennzeichnct den Fahrweg der Gehänge in Höhe des Zugmittels, z. B. einer Kette. Die Pfeile 2 zeigen die Zugrichtung an. Die Gehänge - hier freischwebend unter dem Zugmittel dargestellt - sind auf nicht näher bezeichnete Weise mit dem Zugmittel verbunden. Sie enthalten einen nicht drehbaren Teil 3 des Drehkopfes 4, an dessen unterem Ende eine flanschartige Erweiterung mit einer Wellenbahn 5 angeordnet ist. Die flanschartige Erweiterung wird von einem gegen das Teil 3 drehbaren Topf 6 umgriffen, der auf seiner Innenseite Lagerzapfen 7 aufweist, die sich auf der Wellenbahn 5 abstützen. Außen trägt der Topf 6 noch ein Drehkreuz aus Armen 8, die zum Drehen des Gehänges von Hand ergriffen werden können. 1 identifies the travel path of the hangers at the level of the traction device, e.g. B. a chain. The arrows 2 indicate the direction of pull. The hangers - here floating freely Shown under the traction mechanism - are in an unspecified manner with the Traction means connected. They contain a non-rotatable part 3 of the rotary head 4, a flange-like extension with a corrugated track 5 is arranged at its lower end is. The flange-like extension is made up of a pot that can be rotated relative to part 3 6 encompassed, which has on its inside bearing pin 7, which is on the Support wave track 5. Outside the pot 6 still carries a turnstile made of arms 8, the can be gripped by hand to rotate the hanger.

In Fig.5 ist ein derartiger Drehkopf in Draufsicht näher dargestellt und zeigt nur zwei Lagerzapfen 7 auf der Wellenbahn 5. Zur sichereren seitlichen Abstützung kann es von Vorteil sein, wenn zu den übrigen Armen 8 ebenfalls fluchtende Lagerzapfen vorgesehen sind. In Figure 5, such a rotary head is shown in more detail in plan view and shows only two bearing journals 7 on the corrugated track 5. For more secure lateral Support, it can be advantageous if the remaining arms 8 are also aligned Trunnions are provided.

In F i g. 6 ist ein gleichartiger Drehkopf in Draufsicht dargestellt, dessen Gehänge n 3 Hängerichtungen aufweist. Dazu hat die Wellenbahn 5 drei Wellen. Auf ihr stützen sich eine oder drei Lagerzapfen 7 ab. Die Lagerzapfen 7 können als Gleitstücke oder als Rollen ausgebildet sein; Rollen dürften zur Wellenbahn eine geringere Reibung verursachen. In Fig. 6 shows a similar rotary head in plan view, whose hanger has 3 hanging directions. For this purpose, the wave run 5 has three waves. One or three bearing journals 7 are supported on it. The journals 7 can be used as Sliders or be designed as rollers; Rollers are allowed to go to the wave run cause less friction.

Die Lagerzapfen 7 sind über den Topf 6, wie F i g. 1 zeigt, mit einem Gehängeschaft 9 verbunden, an den in hier nicht dargestellter Weise die Werkstücke angehängt werden können. Bei dem in Fig. 1 bis 3 und 5 dargestellten Beispiel haben die Gehänge n h 4 mögliche Hängerichtungen und ebenso viele Wellen auf der Wellenbahn 5. Am Gehängeschaft 9 sind zwei Blechfahnen 10 und 11 befestigt, die in unterschiedlichen Höhen auf ihnen zugeordneten Fahrwegen 12 und 13 bewegt werden. Entsprechend dem Winkel zwischen zwei benachbarten Winkelstellungen des Gehänges schließen die Blechfahnen von oben betrachtet einen rechten Winkel zwischen sich ein. The trunnions 7 are on the pot 6, as F i g. 1 shows with a Hanger shank 9 connected to the workpieces in a manner not shown here can be attached. In the example shown in Figs. 1 to 3 and 5 have the hangers n h 4 possible hanging directions and as many waves on the wave track 5. Two sheet metal flags 10 and 11 are attached to the hanger shaft 9, which are in different Heights are moved on their assigned routes 12 and 13. According to that The sheet metal flags close the angles between two adjacent angular positions of the hanger seen from above a right angle between them.

An beiden Seiten des Fahrwegs 1 sind in den Drehstationen 14 und 15 drehbare Rollen 16 und 17 als Anschläge für die Blechfahnen fest montiert. Dabei sind die weißen Rollen 16 in Höhe der weißen Fahne 10 und die schraffierten Rollen 17 in Höhe der schraffierten Fahne 11 angeordnet. Steht daher die Fahne 10 seitwärts zur Laufrichtung 2 der Gehänge, so stößt sie in der Drehstation 14 gegen eine der Rollen 16 und wird beim Weiterlaufen des Gehänges an der feststehenden Rolle vorbei entgegen der Laufrichtung 2 parallel zum Fahrweg 1 gedreht. Dabei müssen der oder die Lagerzapfen 7 auf der Wellenbahn 5 zunächst einen Wellenberg überwinden und fallen dann selbsttätig in das nächste Wellental hinab. Dann steht aber die andere Blechfahne 11 rechtwinklig zum Fahrweg 1 des Gehänges und stößt an eine der Rollen 17 der Drehstation 15 an, wodurch die Blechfahne 11 wiederum in Gegenrichtung zur Laufrichtung 2 parallel zum Fahrweg 1 bewegt wird. On both sides of the track 1 are in the turning stations 14 and 15 rotatable rollers 16 and 17 firmly mounted as stops for the metal flags. Included are the white rollers 16 at the level of the white flag 10 and the hatched rollers 17 arranged at the level of the hatched flag 11. Therefore, the flag 10 is sideways to the direction of travel 2 of the hangers, it strikes in the turning station 14 against one of the Rolls 16 and will pass the stationary roll when the hanger continues to run rotated against the running direction 2 parallel to the track 1. The or the journals 7 on the wave track 5 first overcome a wave crest and then fall automatically into the next wave trough. But then the other one stands Sheet metal flag 11 at right angles to the travel path 1 of the hanger and abuts one of the rollers 17 of the turning station 15, whereby the sheet metal flag 11 in turn in the opposite direction to Running direction 2 is moved parallel to route 1.

In den Zeilen A bis D der Fig. 3 sind vier mögliche Fälle dargestellt, unter denen das Gehänge gegen die erste Drehstation 40 anlaufen kann. Die unterhalb der ersten Drehstation 14 angeordneten Pfeile deuten an, in welcher Richtung die vorauslaufenden Fahnen durch die Drehstation bewegt werden. Zwischen den Drehstationen haben die Fahnen 10 und 11 des Gehänges die jeweils angedeutete Stellung, in der sich die Fahne 11 immer in einer möglichen Stellung seitlich zur Fahrrichtung befindet. In dieser Stellung läuft das Gehänge durch die Drehstation 15 und wird jeweils nochmals um eine Vierteldrehung entsprechend den unterhalb der Drehstation 15 dargestellten Pfeilen gedreht. Nach dem Durchlaufen der Drehstation 15 befindet sich das Gehänge immer in einer bestimmten, nämlich der dargestellten Winkelstellung. In lines A to D of Fig. 3, four possible cases are shown, under which the hanger can run against the first turning station 40. The one below the first turning station 14 arranged arrows indicate in which direction the leading flags are moved through the rotating station. Between the turning stations the flags 10 and 11 of the hanger have the position indicated in each case in which the flag 11 is always in a possible position to the side of the direction of travel. In this position, the hanger runs through the rotating station 15 and is repeated each time a quarter turn corresponding to those shown below the turning station 15 Arrows rotated. After passing through the turning station 15, the hanger is located always in a specific, namely the angular position shown.

Stellvertretend für alle Gehänge mit ungerader Anzahl von Winkelstellungen sind in Fig. 4 zusammen mit dem dargestellten Beispiel in F i g. 6 die drei möglichen Einlauf-Winkelstellungen eines Gehänges mit drei möglichen Winkelstellungen in den Zeilen A bis C dargestellt. Bei solchen Gehängen genügt eine einzige am Schaft in Höhe der ortsfest angebrachten Anschläge in der Drehstation 17 angebrachte Blechfahne 18. In Zeile A läuft das Gehänge bereits in der Winkelstellung durch die Drehstation 14, die es auch vor Einlauf in die nicht dargestellte Bearbeitungsstation haben soll. Der Pfeil deutet an, daß das Gehänge ohne Drehung durch die Drehstation 14 läuft. In den Zeilen B und C läuft das Gehänge in einer anderen als der gewünschten Winkelstellung die Drehstation 14 an, so daß die nun schräg seitwärts abstehende Blechfahne gegen eine der Rollen 16 der Drehstation 14 läuft und entsprechend der Pfeilrichtung parallel zum Fahrweg 1 gedreht wird. Sodann sind die Gehänge in der gewünschten Hängerichtung. Representative for all hangers with an uneven number of angular positions are shown in FIG. 4 together with the example shown in FIG. 6 the three possible Inlet angular positions of a hanger with three possible angular positions in the Lines A through C shown. With such hangers, a single one on the shaft in Height of the stationary attached stops in the turning station 17 attached sheet metal flag 18. In line A, the hanger is already running through the turning station in the angular position 14, which also have it before entering the processing station, not shown target. The arrow indicates that the hanger can be rotated by the rotating station 14 runs. In lines B and C the hanger runs in a different direction than the one desired Angular position of the turning station 14, so that the now obliquely protruding sideways Sheet metal flag runs against one of the rollers 16 of the rotating station 14 and according to the Direction of the arrow is rotated parallel to route 1. Then the pendants are in the desired hanging direction.

Dieselbe Anordnung wäre möglich bei Gehängen mit fünf oder sieben möglichen Hängerichtungen, bei denen die Fahne mehrere seitlich abstehende Winkelstellungen einnehmen könnte. Welche dieser Winkelstellungen auch immer eingenommen wird, spielt keine Rolle; denn die Anordnung der Anschläge in der Drehstation 14 und die Länge der Blechfahne 18 müssen so bemessen sein, daß die Blechfahne auch in der zu der gewünschten Hängerichtung benachbarten Winkelstellung erfaßt und in die gewünschte Richtung gedreht wird. The same arrangement would be possible with hangers with five or seven possible hanging directions in which the flag has several laterally protruding angular positions could take. Whichever of these angular positions is adopted plays a role not matter; because the arrangement of the stops in the turning station 14 and the length the sheet metal flag 18 must be dimensioned so that the sheet metal flag is also in the to the Desired hanging direction detected adjacent angular position and in the desired Direction is rotated.

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Claims

Claims: 1. Traction means conveyor track for rotatable hangers for Transporting workpieces that are hanging on a hanger shaft in a certain should run into a processing station from n ~ 3 hanging directions, thereby characterized in that each hanger (4, 9) with a rotating head (4) with an upward directed end-face wave track (5) is provided with n waves on which Wave track (5) at least one bearing pin (7) of the hanger shaft (9) slides or unrolls that at n '3.5, 7. . . a rotary lever (18) and at n B 4, 6, 8 ... two Rotary lever (10, 11) offset in angle and height to each other sideways on the hanger shaft (9) are attached and in the direction of travel (2) of the hanger in front of the processing station one or two turning stations (14, 15) with in the travel path (12, 13) of the laterally protruding Rotary lever (10, 11, 18) protruding on both sides of the travel path (1) of the hanger shaft (9) stationary at the level of the rotary lever (s) (10, 11, 18) attached stops (16,17) are provided.

2. traction means conveyor track according to claim 1, characterized in that that the wave track (5) has four waves evenly distributed around the circumference and the rotary levers (10, 11), viewed from above, enclose a right angle between them.

3. traction means conveyor track according to claim 1 or 2, characterized in that that the rotary levers (10, 11, 18) on the hanger shaft (9) in the plane of its mid-vertical assembled sheet metal flags (10, 11, 18) exist and the stops on their the rotary lever contacting ends are provided with rotatable rollers (16, 17).

The invention relates to a traction means conveyor track for rotatable hangers for transporting workpieces that are hanging on a hanger in a certain of n h 3 hanging directions should enter a processing station.

Such workpieces can be sheet metal housings, for example, which are in have to enter a painting station in a certain direction. Manual intervention to align the hangers should be dispensed with here because the human Use either for reasons of an unsuitable environment or at least because of the danger of an automatic movement of larger workpieces on the conveyor track is unreasonable. An automatic alignment of the workpieces also contributes to humanization the world of work.

In our older German patent application P 32 47 327.3 is already described an introductory traction means conveyor track, on their hangers-blinds with two translucent zones attached in a certain arrangement. Are the translucent ones according to the correct position of the hangers? Zones in an arrangement that corresponds to the position of light barriers then runs the hanger continues unaffected. In all other positions of the hanger a controllable turning station is activated to turn the hanger a quarter turn to cause.

The invention is based on the problem of the older proposal to improve that absent Only simple, fixed mechanical ones are removed from the hanger Turning stations must be provided in order to avoid any susceptibility to malfunctions to avoid controllable turning stations. Hence, this set up is supposed to be easiest Means be built up and work trouble-free without human intervention.

According to the invention this object is achieved in that each hanger with a rotary head with an upwardly directed wave path on the end face n shafts are provided, on which shaft track at least one bearing pin of the hanger shaft slides or rolls, that with n 5 3, 5, 7 ... a rotary lever and with n> 4,6, 8 two rotary levers, offset in angle and height, attached to the side of the hanger shaft are and in the direction of travel of the hanger in front of the processing station one or two Turning stations with protruding into the path of the laterally protruding turning levers on both sides of the travel path of the hanger shaft in a fixed position at the height of the rotary lever (s) Attacks are provided. This arrangement has the advantage that only one or two Flag-like rotary levers on the hanger shaft must be provided and accordingly one or two turning stations are arranged on the travel path of the hanger, which only Fixed stops included. Without doing anything, the hanger will then move through rotated in the correct hanging direction at the last turning station. Hazards from This practically eliminates people or tools.

In a particularly advantageous embodiment of the invention Traction means conveyor track for workpieces that have to be processed from four sides, consists in the fact that the wave path has four waves evenly distributed around the circumference and the rotary levers, viewed from above, enclose a right angle between them. Such an arrangement should correspond to the normal case for workpieces to be machined and would move every hanger in the right direction without any exception.

The invention could furthermore be designed particularly advantageously as a result be that the rotary lever on the hanger shaft in the plane of the perpendicular assembled sheet metal flags exist and the stops on their touching the rotary lever Ends are provided with rotatable rollers. Sheet metal flags would be installed during their assembly as well sufficiently large tolerances when attaching the stops in the course of the conveyor track without having to fear that in special operating situations the stops the assigned metal flags while the hanger is passing by could not meet.

The invention is also advantageously applicable to hangers whose Wave tracks have an odd number of waves and the hangers one accordingly have an odd number of angular positions. As with an exemplary embodiment will be shown, all that is needed is a rotary lever on the hanger shaft and a turning station with stops on both sides of the track is required.

Based on the exemplary embodiments shown in the drawing the invention explained below.