DE7931614U1 - CONVEYOR RAILWAY WITH INPUT AND DISCHARGE DEVICES - Google Patents

Description

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HÖLGER ÄRENTOFT aei KfiäBäöMJfilenBefe 23.

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PATENT Attorney GarfensIfäneiB

Part ₁ LIrIz 2612, VörWähl 02644

Applicant ί , GP ... 4§8,

Mäsöhinenf-abirik Reikä = work
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For derbahn._mit_E.inqabejr__ünd AbwerfVorriäh-Faungen

The invention relates to a ririnenformige conveyor track especially for the requirement of more sensitive rods Workpieces * It is based on the state of the art, as described in German patent specification 22 52 451 is.

The conveyor track shown in this patent consists of two endless conveyor belts that roll at the same speed and in the same direction around conveyor rollers ^ pairs, the axes of which form an angle of 90 ° with each other, and whose lower edges are close to the conveyor belt thicknesses. This creates a V-shaped conveyor trough. As a rule, one or more input ramps are arranged on one long side of the conveyor chute and one or more ζ) discharge ramps are arranged on the other long side; however, if the conveyor track is to be loaded or unloaded on both sides at a certain distance - e.g. in the course of a sorting process * · either only input ramps or only discharge ramps can be attached to both conveyor track sides.

For sensitive workpieces such as nuclear reactor rods, It is from electron tubes, explosive rods and the like It is crucial that the loading and unloading of the conveyor troughs takes place absolutely smoothly. Does it about the promotion of nuclear reactor rods, the must Conveying process run completely automatically; The bars

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may not be touched by hand, and any division of the work routine by an operator may only be carried out as a remote control * , _t

The earlier German patent 22 5 2 451 cited above took all of these criteria into account in full. However the conveyor track shown in this patent specification is quite complicated and cumbersome and over In addition, costly and labor-intensive * loading and unloading take place in that the entire conveyor track on both sides up to 50 ° - 60 ° around one The longitudinal axis is pivoted in such a way that the channel sides are in the same plane in each pivot position with either an input or loading ramp or an ejection ramp.

The swiveling out of the entire conveyor track with conveyor rollers, drive motor, etc. requires extensive and heavy equipment. Furthermore, the pivotable conveyor track cannot be made very long because a conveyor track housing that is too long would be deformed by torsion. One is therefore forced to line up several conveyor track housings one after the other in order to achieve a greater (Λ conveyor track length. Also, with a single swiveling of the conveyor track, only one input or one ejection point can be served; in practice this means that there is only one on each conveyor track A further shortcoming of the known conveyor troughs is that converting an input point to an ejection point and vice versa is quite laborious and requires considerable effort.

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The aim of the present invention iät to fix the be * · ¹ knew finnenföx--shaped conveyor tracks adhering defects tO and create a rirtnenföfmige conveyor track with Eingäbeünd Abwerfvorrichtungen * technically simple design and should be inexpensive to produce j in any desired length and with any desired number of input and ejection devices can be set up and is therefore able to operate any number of input and ejection ramps. Furthermore, λ the conversion of the input device in a Abweirfvor = '' direction and vice versa should be quick and easy and require only a few manipulations. The new input and ejection device should finally enable particularly short input and ejection paths, through which the necessary acceleration and subsequent deceleration of the moving workpiece are reduced to a minimum.

This invention aims are realized in that in the course of the conveying channel at least one of the conveyor trough is formed over a range of time interrupting opening the input device or the dropping device receiving, by the DAR the delivery channel - -s alternate ends of the inner parts of the conveyor belts of two per inner pulleys, whose circumferential surfaces on the channel side run in the channel plane, are deflected onto two outer deflecting rollers each, the conveyor belts resting on the respective inner surface of the inner deflecting rollers on the respective channel side and on the circumferential surface of the outer deflecting rollers remote from the channel, from where each conveyor belt is guided around a further inner deflection roller, on whose channel-side circumferential surface the conveyor trough is created again. The input resp.

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Discharge device can consist of at least one gripper arm provided with a holding piece on the channel side, the is arranged around a pivot shaft running parallel to the trough direction (conveying direction), in its basic position rests directly or indirectly on the conveyor track housing and in the basic position the conveyor grips around the bottom of the channel from below, while the upper edge of the gripper arm is in its respective end position (as an input device or ejector) swung out, in each of these positions an acute angle with the Forms a horizontal plane and represents a roll-off track for the workpiece to be brought in or to be thrown off.

The swiveling out of the gripper arm can be done by a pneumatic cylinder be caused, on which an adjusting screw is arranged, which on the total displacement length of the Acts piston rod and thus influences the inclination of the upper edge of the gripping arm in its pivoted position.

In a preferred embodiment of the invention, the input or ejection device consists of a relative short gripping arm and a longer unwinding arm attached to a vertically displaceable piston rod of a Pneumatic cylinder are attached in such a way that the inside of the short gripping arm is parallel to the one channel plane (Conveyor belt level) and is not adjustable, while the longer unwind arm has a clamping screw is hinged to the piston rod adjustable in the vertical plane.

Be on each side of the conveying path one of the outer can at least Umlenkrollon (not shown) (12 to 15) on a spring-loaded lever arm on FörderbahngehäUäe (I) stored. ¹

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An exemplary embodiment of the invention is illustrated and explained below with reference to the drawing.

Show it

Figure 1

Figure 2

Figure 3

a trough-shaped conveyor track with two interruptions in the trough guide and with input and ejection devices arranged in the resulting openings, in a plan view,

the section X-X of Figure 1, enlarged

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another embodiment of the input and ejection device.

The reference numbers given on the figures mean

1
2

3.4

5.6
7.8
9

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12.13
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the casing of the conveyor track

Support pillars

driving conveyor rollers

idle conveyor rollers

Conveyor belts

the conveyor trough formed by the conveyor belts

inner pulleys, first outer pulleys, next outer pulleys

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16,17 downstream inner pulleys

18 workpiece

19.20 pivot shafts

21,22 struts for mounting the pivot shafts

23,24 pneumatic cylinders

2-, 26 piston rods of the pneumatic cylinders

27,28 swivel arms of the swivel shafts 19,20

29- Joint for the pneumatic cylinders

30 gripper arm

301 Upper edge of the gripper arm ("roller path")

302 Holding piece of the runway

303 Rolling nose of the taxiway

31 loading ramp

311 Level of the input ramp

312 locking device

32 Discharge ramp

33 Adjusting screw on pneumatic cylinder 23, 24

34 short gripper arm

35 longer unwind arm

351 roll-off nose

36 Piston rod of the pneumatic cylinder

37 Clamping screw on the device, Figures 38, 39 Bearing bush of the piston rod 36 40 pneumatic cylinders

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The conveyor track is built on an elongated tubular housing 1 with a square cross-section, the a diagonal is arranged vertically. "The housing 1 rests on support columns 2 (see Fig. 2 and 3). At each end of the housing 1, a conveyor roller 3 to 6 are mounted on each side surface. The conveyor rollers are all same size. An endless conveyor belt runs around the conveyor rollers 3, 5 and 4, 6. Both conveyor belts ·, 7.8 together form a conveyor trough 9, which is always from the conveyor roller pair 3, 4 after the conveyor roller pair 5.6 moved out. It is driven by the pair of conveyor rollers 3, 4, which are driven by a gear (not shown) is driven by a drive motor (also not shown).

The conveyor trough 9 initially runs up to two pulleys 10, 11, the diameter of which is slightly smaller than the diameter of the conveyor rollers 3 to 6, and their trough-side Perimeter is located in the channel level. The trough sides of the conveyor belts are made by the pulleys 10, 11 7, 8 via outer deflecting rollers 12, 13 to further outer deflecting rollers arranged at a distance from these 14.15 led; on all outer pulleys 12 to 15 are the conveyor belts 7,8 on the the side of the respective deflection pulleys away from the channel. The conveyor belts return from the outer deflecting rollers 14,15 7,8 return to the gutter shape by passing around two more pulleys 16,17, which are in the same Level (channel level) as the previously described inner pulleys 10, 11 are arranged.

In this way, the course of the conveyor trough is interrupted by an opening formed between the deflection rollers 12 to 17, ϊη this opening are the input

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And ÄfeWeiffvöifßieh-fcUngen entered * The Vor "r" iäh-bUhcfeft work iii as a rule in pairs | the Läftge the opening "ftiUß therefore be either extended such that two devices can find enough space barren one must j As shown in Figure 1 successively _t ^ he provide two openings. The second opening is connected to the just sawn ^ signed first opening is equal to *

The length of the individual input · "or * dropping device pair" depends on the length of the rod-shaped material to be conveyed Workpieces 18 (see. Fig. 2 and 3) from * Is that Workpiece short j you can enter the individual bäw. Discard Vorriähtung with one adapted to the workpiece length Tragschaie (not fenced) provided and then only needs a single device to solve the task ^ to bring the workpiece into the conveyor trough or to eject it from the conveyor trough.

The outer pulleys 12 to 15 can be used for Aufrecl maintenance a constant tension of the conveyor belts 7,8 serve by placing at least one of these pulleys arranged on a spring-loaded lever arm (not shown).

Figure 2 shows an input and ejection device according to the invention. A pivot shaft 19, 20 is arranged on each side of the housing 1 and is parallel to the conveyor trough 9 runs and is rotatably mounted on struts 21,22, which in turn ah support pillars 2 (as shown in the figure) or are anchored to the housing. The rotation the heavy equipment 19 ^ 20 are pneumatically operated by pneumatic cylinders 23 ^ 24 causes ^ their piston rods 25 ^ 26 to Swivel arms 27,28 attack ^ those with the respective

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äöhWefikWelle iS ^ gÖ firmly connected äind. Dig Pneumatikgyiindej? 23,24 aind over an oil joint 29 arn Öehäüäe 1 hinged.

With the Sdhwenk wave 19 is firmly connected to about S-shaped gripping arm 30, the upper edge 3Ö1 runs straight and forms a roller path for the workpiece 18 to be brought in or thrown away Haltestüek 302. In its basic position (starting position) is the gripping arm 30 on the Porderbahngehause up and under with the upper edge (runway) 301 and the holding piece 302, the conveyor trough 9, but without touching the conveyor belts 7,8. The inside of the runway 301 and the holding piece 302 run parallel to the respective assigned channel side.

When the gripping arm 30 is pivoted out, it can be brought into two pivoting positions 30 'and 30 " Pivot position 30 'is the input position in which the runway 301 with the rolling surface one next to the Conveyor track arranged input ramp 31 corresponds, and in the pivoting position 30 "(the ejection position) the runway 301 lies against a corresponding drop ramp 32.

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From this illustration it can be seen that the same gripping arm 30 can be used as an input device or as an ejection device, as required can be used.

First of all, it should be explained how the inventive Device works as an input device. Via the Eirigaberämpe 31, the rod-shaped workpieces 18 roll up. A step 311 is formed on the front edge of the input ramp 31. When the gripper arm 30 in the

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Inputting "30 'swiveled in, the ab« röllnäse 3Ö3 of the öifeifärmä on the "level 311 of the input ramp 31 on. The impact of the rolling nose 303, on the step 311 is used to switch the stroke direction of the Pheumätikzylinders 23 and so the pivoting back of the gripper arm. The workpiece · 18 to be entered can now be used on the downward sloping And as a runway acting upper edge 301 of the gripper arm 30 to the holding piece 302 roll in, »The rolling speed of the workpiece 18 as well as the impetus of the impact on the shark "test piece is determined by the downward inclination of the upper edge (" RoIl-! track ") 301; this downward inclination can be determined by means of ! an adjusting screw 33 arranged at the lower end of the pneumatic cylinder 23 can be adjusted.

j Before rolling onto the runway, the workpiece is

held back by a locking device 312, which is only indicated in Figure 2; the block is at The impact of the roll-off nose 303 on the step 311 of the input ramp 31 is canceled. Such locking devices are generally known and should not be described in more detail here.

(■ ^ As soon as the workpiece 18 is rolled onto the runway 301 is, the gripper arm 30 pivots into its starting position

j back, the workpiece 18, which in its Tiänge the

The opening in the conveyor trough overlaps, from the conveyor trough 9 formed again on the deflection rollers 16, 17. - grabbed. And is promoted

This representation shows that one for the Input and ejection of longer workpieces 18 are two consecutively arranged input or ejection devices 30 is required, the upper edge of which is only 301

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When Vörhähdenäein two VöifriahtUngen one real one Form "runway". Only shortened in the rare case? Workpieces 18 can be found on the upper edge 3Ö1 of a gripping arm 30 a kind of elongated tragedy (not drawn) alifhabenj which then carries the workpiece.

Using the gripping arm 30 as the dropping device is i as the procedure followed when pivoting the Ck'eifarms 30 from its home position (see FIG. 2, right side) reaches the gripping arm 30 (more correctly ί the two mutually downstream gripping arms 30, see FIG. 1 ) under the workpiece 18 and lifts it into the Schwerikstellüng (ejection position) 30 '. In this position, the runway formed by the gripping arms is oriented obliquely downwards; the workpiece 18 rolls over the runway and onto the discharge ramp 32. The pivoting movement is limited by the fact that the roll-off nose 303 of the gripping arm 30 hits a step 321 formed on the edge of the discharge ramp 32. As previously described in the entry process, causes the charge required for the return swing of the gripper arm switching of the pneumatic cylinder "Such scarf t devices are commercially available and will not be described here. The workpiece 18, which has already come into the Rolleji during the pivoting movement of the gripping arm 30, now rolls over the roll-off nose 303 onto the discharge ramp 32. If, for safety reasons, it is to be prevented that the workpiece 18 cannot roll down from the gripper arm 3Q before it reaches the drop ramp 32, for example in the event of a sudden failure of the pneumatic system, there are locking devices that are only activated when the roll-off nose 303 hits the step 321 of the Abwer'iframpe 32 errfesperreri; such roll barriers are general

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known and therefore not further described here.

As shown in Figure 2, the gripping arm 30 acts in in the same way on both sides of the conveyor track. It is therefore possible to set input and ejection ramps at will set up sometimes on one side and sometimes on the other. The only difference in principle between the input ramp and the ejection ramp is that the input ramp is higher, further into the work area protrudes and has a downward incline, while the dropping ramp is attached lower, is further withdrawn and sloping upwards. Therefore, you need an input ramp when retrofitting to the ejection ramp and vice versa only to change the position of the ramp.

The version of the input and dropping device shown in Figure 3 has the advantage _r that the conveyor track can be built in total considerably narrower than following the example of Figure 2. In conveying paths that are not accessible in hermetically sealed and by the operator and possibly special with a climate work in the rooms provided, this advantage is often of decisive importance. In such circumstances, the disadvantage of the elongated piston rod guide is likely to be of less weight. ?

As with the device in FIG. 2, the input and ejection device shown in FIG. 3 is as a rule attached in pairs. It consists of a shorter gripping arm 34 and a longer unwinding arm 35, which at a vertically displaceable piston rod 36 are attached. This forms the inside of the küraeifen 6ueifa3? Fns 34 an angle van 4Sö mi-b dej? LMngs-

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axis of the vertically displaceable piston rod 36, while the inclination of the longer Abrollarms 35 about a clamping screw 37 is adjustable so that the Unroll arm 35 any angle between about 50 ° and 130 ° with the longitudinal axis of the Piston rod 36 includes.

If the device is to be used as a dropping device, as shown on the right-hand side of FIG. 3, one sets with the clamping screw 37 the unwinding arm 35 (_) in such a way that its upward facing edge ("roller path") forms an obtuse angle with the elongated longitudinal axis of the piston rod (around 97 ° on the figure). In In the direction of the roll-off nose 351, the upper edge of the roll-off arm 35 is therefore inclined obliquely downward. The piston rod 36 runs through two bearing bushings 38, 39 arranged in the housing wall of the housing 1 and is of a pneumatic cylinder attached to a support column 2 or via a bracket (not shown) to the housing 1 40 moves,

In the starting position, the gripping arm 34 and the unrolling arm 35 are arranged directly below the level of the channel. (The inside of the gripping arm 34 runs parallel to the plane of the inner conveyor belt 8, while the unwinding arm 35 extends under the conveyor belt 7 ^? (Mirror image of the illustration in FIG. 3). If the workpiece 18 is to be dropped, the dropping device 34, 35, 36 lifts the workpiece 18 up until the roll-off arm 35 with its roll-off nose 351 hits the step 321 of the discharge ramp 32, after which the workpiece 18 rolls over the roll-off nose onto the discharge ramp

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Roll-off nose on step 321 as a signal to change the direction of movement of the one located in the pneumatic cylinder Working piston; the ejection device 34,35,36 then returns to its starting position.

The device 34, 35, 36 acts in an analogous manner as an input device, see the left-hand side of FIG. As part of the input device, the unwinding arm 35 is set in such a way that it forms an acute angle (on FIG gur 3 approx. 83 °) with the extension of the longitudinal axis of the Q piston rod 36, i.e. the upper edge of the unwinding arm 35 inclines obliquely upwards in the direction of the roll-off nose 351.

In order to bring a workpiece 18 into the conveyor trough 9, the input device 34,35,36 is raised to the stop the roll-off nose 351 is lifted onto the step 321 of the input ramp 31. The workpiece 18 rolls up to the impact down onto the gripper arm 34. At the same time, the input device quickly returns to the starting position brought back, the protruding over the opening in the conveyor trough 9 also workpiece 18 from the immediately after the opening re-formed conveyor trough \ is carried on.

By carefully coordinating the rolling speed (setting the one that matches the workpiece in question optimal roll-off angle) with the speed of the downward movement of the input device is at smooth transport of the workpiece an optimal high working speed can be achieved by the short Taxiway and the equally short working path of the vertical displacement of the input device even at slower speeds Lowering movement 'a far more aesthetic transport and especially a gentler serve of the

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Ensure workpiece on the conveyor trough 9.

The input and throwing device according to the exemplary embodiment Figure 3 is also particularly favorable Stig when it comes to very short workpieces, each with a single input or Get by throwing device. When the device is only moved vertically, in in many cases a carrying tray attached to the device and extending in the conveying direction ) (not shown) are sufficient.

5 claims

Claims (1)

- 16 - GP Protection claims 1. Conveyor track with input and ejection devices, consisting of two endless, at the same speed and in the same direction around corresponding Pairs of conveyor rollers unrolling and forming a V-shaped conveyor trough together the long sides of which have at least one input and / j- * or ejection ramp, the input ramp towards the conveyor chute and the discharge ramp are inclined away after the conveyor chute, in particular for the conveyance of sensitive rod conveyors Work pieces, characterized in that in the course of the conveyor trough (y) at least one of the input devices (30; 34,35) or the ejection device (30; 34,35) receiving, the conveyor trough (9) formed over a distance interrupting opening is by the conveyor trough (9) representing inner parts of the conveyor belts (7,8) of two inner guide pulleys (10, 11), each of which has trough- ^ sextige circumferential surfaces in the trough plane, on two outer pulleys (12,13) are reversed, steered, the conveyor belts (7,8) on the each channel-side circumferential surface of the inner pulleys (10,11) and rest on the circumferential surface of the outer deflecting rollers (12,13) remote from the channel, from where each conveyor belt (7, 8) around a further outer deflection roller (14, 15) around to one each further inner pulley (16,17) is performed r ■
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