DE10112333A1 - High speed mechanical handling selection unit for two types of different packet and includes sensor which distinguishes between two different types of product e.g. by size or color - Google Patents

Abstract

A mechanical handling system maintains a continual conveyer feed (10) of bulk goods e.g. packets to a holding area or dispatch point (6). The feed system incorporates a sensor (18) which distinguishes between two different types of product e.g. by size or color, and triggers the separation of this type of product from the other products. The separation is effected by a drop hatch (8) to a second conveyer (9).

Description

The invention relates to a continuous conveyor for conveying general cargo according to the Preamble of claim 1.

DE 197 55 204 A1 describes a generic conveyor system with two each as a belt Conveyor trained swivel conveyors known, the downstream front Swing conveyor feeds an immediately downstream discharge conveyor (optional), when he gets from the upstream swivel conveyor in his work aligned with him position is loaded with general cargo, and their upstream swivel conveyor alternatively, a horizontally arranged swivel conveyor below the downstream  and can feed the second unloader located downstream of this unloader, when the upstream swivel conveyor from its inclined conveying position in a horizontal conveying position is lowered, and to the discharge conveyor assigned to it flees.

EP 0 774 431 A1 describes a method and a (conveyor) device for loading with horizontal conveyors arranged vertically one above the other General cargo parts are known, which are also vertical (approximately in a middle between the arranged in both level conveyors lying level) feed conveyor, which with horizontal distance in front of the two stacked conveyors. There is one between the feed conveyor and the two discharge conveyors arranged one above the other Conveyor arranged, which consists of two pivoting conveyors and a non-pivotable Conveyor consists, namely of a directly adjacent downstream of the feed conveyor Swivel conveyor, and two inclined conveyors, one above the other, of which only the upper conveyor is pivotable while the lower conveyor is not pivotable, the pivotable upper intermediate conveyor feeding the upper discharge conveyor in egg ner aligned with the upstream swivel conveyor is aligned when the above re conveyor is to be loaded. The intermediate conveyor located below it is in an opposite inclination in the waiting position. Then the lower one Abförderer are fed, so the Zwi arranged two superimposed upstream swiveling conveyors from its swiveled-up first loading position (for the intermediate conveyor downstream of it) diagonally down into a second loading position, in which it is then in alignment with the lower intermediate conveyor runs, so that the lower discharge conveyor with piece goods supplied by the feed conveyor can be loaded.

WO 98/09894 describes a continuous conveying device for the transport of piece goods knows, which are fed by a feed conveyor, and optionally also with horizontal Distance to the feeder conveyed vertically one above the other (three) discharge conveyors  should be. For this purpose, the feeder is followed by a first intermediate conveyor assigns the optionally from a horizontal position aligned to the feed conveyor around his Rear axle swung up into a raised, inclined swivel position or into an abge lowered inclined swivel position can be swiveled down. The first intermediate Conveyors are arranged after three superimposed second intermediate conveyors, de NEN the upper intermediate conveyor to the first intermediate conveyor in the swung up Position is aligned, the second intermediate conveyor located below in the horizon tal middle position of the first intermediate conveyor is aligned with this, and the lower second intermediate conveyor to the first intermediate conveyor in its lowered pivot position is aligned.

Finally, the second intermediate conveyors are three third intermediate ones arranged one above the other Subordinate conveyor in the direction of funding, each of which is assigned to them Neten conveyor facing end up or down from a horizontal position are pivotable. The upper third intermediate conveyor is aligned in its swung down Position to the upper second intermediate conveyor, runs in its horizontal intermediate position in alignment with the discharge conveyor assigned to it, and in a swiveled up position Position at an angle to the horizontal conveyor. The middle third intermediate In its middle horizontal intermediate position, the conveyor is aligned with that of it orderly conveyor, as well as to the second intermediate immediately preceding it conveyor, and can be swiveled up from this position in the same way or be pivoted down. The third intermediate conveyor, the lower conveyor immediately upstream, in his swiveled position is aligned with him un indirectly upstream lower second intermediate conveyor, in its middle intermediate position tion to the downstream conveyor, and runs in its lowered swivel position at an angle (from the downstream end of the intermediate conveyor downstream of it seen obliquely downwards) to the assigned third conveyor.  

AT 268 144 B describes a device for loading processing devices with the to be processed products, esp. Brick presses or the like, known, which consist of several Belt conveyors arranged one behind the other in a horizontal arrangement, as well as (even if horizontal) there are belt conveyors aligned below each other. there two of the four conveyors forming the upper conveyor section are designed as swivel conveyors det, which can optionally be pivoted downwards or upwards. If a too derndes piece goods supplied by a feed conveyor, it can possibly over the two him downstream intermediate conveyors are fed to a discharge conveyor. Should be a subsidized General cargo, however, arranged on a below the upper conveyor (also horizontal) neten lower discharge conveyor, the one immediately downstream of the feed conveyor Swivel conveyor swiveled downwards, this swivel conveyor in the conveying direction subordinate, also designed as a swivel conveyor up, and the below the latter arranged conveyor also from its previously assumed horizontal position upwards so that it moves towards the swivel conveyor which is swiveled downwards around its rear end rer, who is immediately downstream of the feeder, is in alignment because his pivot axis in För which is arranged in the front. The swivel conveyor arranged above it can also if necessary, be swung up in order to create a larger passage gap in this way fen.

Finally, from DE 31 49 583 C2 a generic continuous conveyor is knows, which also has two directly adjacent swivel conveyors, the their two opposite ends are each pivotable about a pivot axis. This known continuous conveyor is used to identify defective bulk goods units, d. H. Containers such as sacks filled with bulk goods such as cement, granules or the like or the like, which, as soon as possible, are discharged from the conveyor after their introduction should be sluiced so as not to (further) contaminate the system, and therefore with a corresponding identification device are provided, which is one in the Conveyor track integrated identification conveyor deals with bulk material-permeable conveyor track. The actual discharge device is arranged downstream of the identification conveyor Discharge conveyor, with a measuring device under the identifying conveyor  is arranged, and wherein bulk material falling downward through the identification conveyor defective bulk material unit of the measuring device arranged under the identification conveyor is fed via a collecting funnel, the identification conveyor preferably as a Rol lenbahn is formed.

The object of the present invention is to provide the continuous conveying device (s) to improve the genus described above, in particular so that it can be used for various för the tasks can be used in which a general cargo flow due to predetermined Un distinction criteria - which may be different, for example different General cargo size (regarding general cargo length and / or general cargo height and / or general cargo width), under different colors, labeling or the like - such as this, for example, when promoting Bags filled with bulk and / or printed bags are not uncommon - at least to split two sub-streams.

This object is achieved according to the invention by the characterizing features of claim 1. Preferred embodiments of the present invention are in Un Described claims.

In known piece goods continuous conveyors, the conveying speed is already that half relatively limited because the swivel conveyor of the / a pair of consecutive single so far after activation of its swivel drive by the detection device must be pivoted down so that the distance of its conveying surface to the bottom of it downstream conveyor larger than that to be discharged at the second delivery point General cargo is part (which takes a certain amount of time) so that it does not become a Collision of a piece of cargo to be discharged at the second delivery point with that in ner i. w. horizontal normal conveying position, downstream in the conveying direction Sponsor is coming. The present invention enables considerable ver at least then Reduction of the required swiveling time between activation of the swivel drive / Swivel drives and reaching the swiveled out position of the two involved  (Swivel) conveyor, and thus a corresponding increase in the conveying speed the consequence of a correspondingly increased delivery capacity if the two are directly at each other downstream pivot conveyor, which preferably on their mutually facing end section ten are pivotable, so their pivot axes on the non-adjacent En sections of the two swivel conveyors are arranged after receiving a corresponding one Signals from the control device activated by the detection device immediately be pivoted. There are obviously several different possible solutions options, since each individual conveyor designed as a swivel conveyor is basically designed this way can be formed that he from his i. w, horizontal normal delivery position either after up, down or optionally up and down to move its swivel axis panning is.

Taking this into account, the present invention most preferably provides that the in Direction of conveyance upstream arranged first swivel conveyor of a swivel conveyor couple from its (generally horizontal) normal delivery position around its upstream gels gene pivot axis is pivotable downward, and when initiating the pivoting movement is actually swung down, and that the downstream in the conveying direction arranged second swivel conveyor of a pair of swivel conveyors from its (generally also i. w. horizontal) normal conveying position about its downstream pivot axis is pivotable upwards. A combined realization of the immediately above be the two most preferred configurations described is at least then highest useful if to achieve the highest possible output with a chend high conveying speed to be worked, and therefore intended at one e discharge of a piece of general cargo at the / a second delivery point (between the two Swiveling conveyors of a swiveling conveyor pair) accordingly quickly (by opposing relative pivoting of the two swivel conveyors) a sufficiently high discharge gap between the conveyor track level of the upstream swivel conveyor and the underside of the subordinate sponsor should / must be created (although generally in the normal Conveying position only a very narrow gap in the manner of an unavoidable joint is available). Because in the normal funding position, the funding levels of the two are aligned  Swing conveyor usually (at least i. W.) To each other, and the facing each other End sections of the two conveyors are i. a. immediately adjacent to one possible very quiet and bumpless transport of the material to be discharged at the first delivery point To ensure general cargo, which otherwise i. In particular with relatively short general cargo parts i. a. Not is guaranteed.

The swivel drives of the two swivel conveyors of a swivel conveyor pair are preferably controllable by the same control device in such a way that the downstream second swivel conveyor is simultaneously pivoted upwards from its normal conveying position into its swivel end position when the upstream first swivel conveyor is activated from its normal conveying position in the swivel direction (= swung up). This has the consequence that the second swivel conveyor downstream of the first swivel conveyor can easily reach its swivel end position, while the piece goods part to be discharged overhead between the two swivel conveyors on the first swivel conveyor which is pre-arranged to him from the generally horizontal main conveying direction Förderein direction is redirected obliquely downwards, as is also shown below in an embodiment (sd esp. Fig. 3).

The pivoting of the swivel conveyor can be seen in a variety of ways or done with different means. As particularly useful and therefore preferable training has proven itself in which each swivel Conveyor by means of one of (s) a swivel drive motor via a chain drive or the like. actuatable eccentric crank drive is pivotable, the one on an eccentric disc or Eccentric arms articulated crank rod (s) at their other end section (each) on one lateral approach of the swivel conveyor is (are) at a distance from the swing Kachse is arranged, already from the point of strength and to avoid of vibrations, a two-crank rod arrangement per swing conveyor is particularly useful is moderate, of which each crank rod is assigned to a swivel conveyor  Crank rod pair is articulated on one side of the swivel conveyor, and preferably parallel to the crank rod runs on the opposite side.

It's I. a. expedient, both swivel conveyors of a / each swivel conveyor pair with one Equip eccentric crank drive, the two eccentric disks each preferred Eccentric crank drive supporting axles from a common drive (e.g. via a Chain or belt drive) are to be driven.

Preferred embodiments of the present invention are in the subclaims wrote.

The invention is described below using an exemplary embodiment with reference to a Drawing explained further. In this shows:

Figure 1 is a somewhat simplified side view of a piece goods continuous conveyor device according to the invention.

Fig. 2 is a partial plan view of the representation acc. Fig. 1 seen in the direction of arrow II in Fig. 1;

Fig. 3 is a partial view of the representation acc. Fig. 1 with a pair of oscillating conveyor in the normal conveying position (a) and different stages of panning operation (bf);

Fig. 4 is a partial plan view of the representation acc. Fig. 3 acc. arrow IV seen in Figure 3 (f);

Fig. 5 is a (for clarification) compared to Figures 1-4 enlarged Teildar position of the swivel drives for the swivel conveyor pair seen in side view in the direction of arrow V in Fig. 6;

Fig. 6 is a plan view of the representation acc. Fig. 5 seen in the direction of arrow VI in Fig. 5; and

Fig. 7 shows a section through the representation acc. 5 seen in the direction of section line VII-VII in Fig. 5.

Fig. 1 shows a generally designated 1 piece goods conveyor for conveying piece parts 2 , the conveyor track 3 is to be sent to a loading point 4 with piece goods 2 , which either (over head) at a first delivery point 5 to be returned from the conveyor track , ie to be discharged from the continuous conveyor 1 and to be handed over to a downstream conveyor, or - depending on the type of the good part 2 in each case - is transferred to a second delivery point 7 (also overhead) via a chute 8 to a second conveyor 9 .

The continuous conveying device 1 has a plurality of individual conveyors 11-15 , each of which is aligned and directly adjacent to one another in the (main) conveying direction 10 , of which the conveyors 11 and 12 are designed as swivel conveyors to create a second delivery point 7 at the free end of the conveyor 11 , and are limited to a horizontal and transverse to the conveying direction 10 pivot axis 16 and 17 ver pivotable. The swivel axis 16 of the swivel conveyor 11 is arranged on the end section of the swivel conveyor 11 which is not adjacent to the immediately following swivel conveyor 12 , while the swivel axis 17 of the second swivel conveyor 12 arranged downstream is arranged on its end section lying forward in the conveying direction.

Between the feed point 4 and the second discharge point 7 a detecting device 18 is arranged, which the detection device 18 passing in the direction of conveyance 10, a stream feeder thus with the individual conveyors 15 and of the individual conveyors 14 at the downstream of the latter single conveyor 13 is further conveyed piece goods related to. The predetermined distinctive features of the General cargo parts 2 are checked, which can be, for example, the general cargo height, color or other distinguishing features which can be detected by the detection device 18 . The detection device 18 is connected via a signal line 20 to a control device 19 (electrically) which, after receiving a corresponding signal from the detection device 18, transmits a swivel signal to the swivel drive 21 for the two swivel conveyors 11 , 12 , and after the relevant general cargo part 2 'has been discharged. a swing back signal, which causes the two swing conveyors 11 , 12 to be pivoted back into their horizontal normal conveying position.

As can already be seen from FIG. 1, the first pivoting conveyor 11 arranged upstream in the (main) conveying direction 10 is pivoted downward from its horizontal normal conveying position about its upstream pivot axis 16 when a piece goods part 2 'at the second delivery point 7 should be discharged from the continuous conveyor 1 , and the second swivel conveyor 12 arranged downstream in the conveying direction 10 upward about its swivel axis 17 , as can be seen even more clearly in FIG. 3.

From Fig. 3 (and in particular FIGS. 5-7) it can also be seen that the two swivel conveyors 11 , 12 have a common swivel drive 21 , which is controlled by the control device 19 so that the downstream second swivel conveyor 12 simultaneously ( and synchronously) is pivoted up from its normal conveying position into its swivel end position when the upstream first swivel conveyor 11 is swung down from its normal conveying position.

As esp. In FIGS. 5-7 (in conjunction with Fig. 3 and Fig. 1) can be seen, each of the two swivel conveyor 11, 12 by means of an actuatable from the swing drive motor 21 via a chain drive 22 eccentric crank mechanism is 23 or 23 'pivoted, each having two crank rods 24 , 24 ' or 25 , 25 ', each of which is arranged at one end on an eccentric disk 26 or 26 ' or 27 or 27 ', and on the other end section in each case on a lateral extension 28 or 28 'or 29 or 29 ' of the pivot conveyor 11 or 12 , the total length 1 of the two pivot conveyors 11 , 12 in the illustrated embodiment (see FIG. 3a) approximately 2 m, and the width b (see FIG. 4) is approximately 80 cm.

The relative swiveling speed of the two swiveling conveyors 11 , 12 is chosen so large that the distance h between the conveying surface 30 of the swiveling conveyor 11 and the underside of the swiveling conveyor 12 arranged downstream in the conveying direction is greater than the height of a material to be discharged or discharged at the second delivery point 7 General cargo part 2 'when it rests on the conveying surface 30 of the first swivel conveyor 11 , which is bent downward in the swiveled state, as will be explained briefly with reference to FIG. 3:
When the first swing conveyor to the immediately upstream feed conveyor a parcel 2 conveyed 11 him 13 ', which at the second delivery point 7 (s. Also FIG. 1) is to be discharged from the conveyor 1, so has the pivot drive 21 for the two pivot conveyor 11 , 12 - triggered by a corresponding signal from the recognition device 18 - already received a corresponding pivot signal from the control device 19 via the signal or control line 20 'and begins (at the latest) in the state according to Fig. 3a with the pivoting of the two swivel conveyors 11 , 12 from their (in Fig. 3a before existing) horizontal normal conveying position (t = 0). The eccentric discs or arms 26, 26 'and 27, 27' carrying pivot axes 31 and 31 'are limited to pivot the chain drive 22 so that the first pivoting conveyor 11 down about its pivot axis 16 and the second pivoting conveyor 12 is successively pivoted upward about its pivot axis 17 .

As can be seen, for example, from FIG. 3b, which shows a pivoting position which, at the provided conveyor speed of 1.55 m / sec. has already been reached after 0.1 sec., the piece goods part 2 'to be discharged, which in the meantime has moved further on the feed conveyor 13 in the (main) conveying direction 10 , could not yet be discharged (overhead) at the second delivery point 7 , since the distance between the conveying surface 30 of the first swivel conveyor 11 and the immediately downstream second swivel conveyor is still considerably smaller than the height a of the piece goods part 2 '.

As, Fig. 3c sec the conveying situation of 0.2. After the start of panning operation reproduces the distance h _c between the conveying surface of the first pivoting conveyor 11 and the second swivel conveyor 12 is then slightly smaller than the cargo height a. This is not critical, however, because the piece goods part 2 'to be discharged is still on the feed conveyor 13 at this time, and on the other hand has not yet been conveyed so far to the further pivoted, immediately downstream pivoting conveyor 12 that there is a collision between the front Front side of the general cargo part 2 'and the rear end of the swivel conveyor 12 comes.

This would indeed occur if the general cargo part 2 'to be discharged constantly with the relatively high conveying speed of 1.55 m / sec. in the (main) conveying direction 10 would be conveyed, as FIG. 3d clearly shows, which shows the conveying state, which is present at the parameters mentioned 0.3 seconds after the start of the pivoting movement.

The arrangement is now such that the general cargo part 2 'to be discharged tilts down shortly after the state shown in FIG. 3d, because it is no longer supported at its front end section on the feed conveyor 13 , and therefore inevitably tip over must if his center of gravity S has left the feed conveyor 13 in the (main) conveying direction 10 .

As FIG. 3e shows, the piece goods part 2 'to be discharged at the second delivery point 7 takes immediately after the state according to FIG. Fig. 3 abruptly the tilted down position acc. Fig. 3e one, that is, immediately before a further collision with the second swivel conveyor 12 would have occurred in the direction of the (main) conveying direction 10 , and now slips on the swiveled or obliquely bent down conveying surface 30 of the swivel conveyor 11 in Direction of arrow 10 'further down, which indicates the new conveying direction of the piece goods part 2 ', and - as already stated above - on the chute 8 on the conveyor 9th

With reference to FIG. 1, it should also be added that a piece goods part 2 , which should not be removed from the conveyor device 1 at the second delivery point 7 but at the first delivery point S, after passing through the swivel conveyor 11 located in its horizontal normal conveying position, 12 also reaches the first discharge conveyor 6 via a chute 8 '.

Reference list

1

General cargo continuous conveyor

2nd

General cargo

3rd

Conveyor track (from

1

)

4

Drop off point

5

first delivery point

6

downstream first conveyor

7

second delivery point

8th

,

8th

' Slide

9

second conveyor

10th

(Main) conveyor (from

1

)

10th

'Direction of conveyance

11

Single conveyor (= swing conveyor)

12th

Single conveyor (= swing conveyor)

13

Individual sponsor

14

Individual sponsor

15

Individual sponsor

16

Swivel axis (from

11

)

17th

Swivel axis (from

12th

)

18th

Recognition device

19th

Control device

20th

,

20th

'Signal line

21

Swivel drive

22

Chain drive

23

,

23

'' Eccentric crank mechanism

24th

,

24th

'' Crank rods

25th

,

25th

'' Crank rods

26

,

26

'Eccentric disc

27

,

27

'Eccentric disc

28

,

28

'lateral approach

29

,

29

'lateral approach

30th

Funding area (from

11

)

31

,

31

'' Swivel axes

Claims (7)

1. Continuous conveyor ( 1 ) for conveying piece goods ( 2 , 2 '), the conveyor track ( 3 ) of which has to be loaded with piece goods ( 2 , 2 ') at least one feed point ( 4 ), which is in each case at a discharge point ( 5 or . 7 ) can be discharged again from the conveyor ( 1 ), with at least two in the (main) conveying direction ( 10 ) iw aligned, immediately adjacent, swiveling conveyors ( 11 , 12 ), each at their opposite ends A swiveling axis ( 16 or 17 ) extending generally horizontally and transversely to the conveying direction ( 10 ) can be pivoted to a limited extent, characterized in that the conveying device ( 1 ) between the (possibly last) feed point ( 4 ) and the second discharge point ( 7 ) In a manner known per se, a detection device ( 18 ) is assigned, by means of which those piece goods parts ( 2 ') can be detected which are already located at the second delivery point ( 7 ) upstream of the first delivery point ( 5 ). from the conveyor ( 1 ) are to be sluiced, a control device ( 19 ) connected to the detection device ( 18 ) being provided, which is the swivel drive ( 21 ) of the second swivel conveyor ( 12 ) upstream of the first swivel conveyor ( 10 ) ( 11 ) after receiving a corresponding signal from the detection device ( 18 ) a swivel signal, and after returning the relevant piece goods part ( 2 ') a return swivel signal; and also that the pivoting drive (21) of the second swing conveyor (12) with a hand, with the ih / to a further detection device (18) functionally connected Steuerein direction is provided (19) or connected. 2. Conveying device according to claim 1, characterized in that in the (main) conveying direction ( 10 ) upstream arranged first swivel conveyor ( 11 ). the pair of swiveling conveyors ( 11 , 12 ) can be swiveled downward in a manner known per se from its generally horizontal normal conveying position (see FIG. 3a) about its upstream swiveling axis ( 16 ). 3. Conveying device according to claim 2, characterized in that the (main) conveying direction ( 10 ) arranged downstream second pivoting conveyor ( 12 ) of the pair of pivoting conveyors ( 11 , 12 ) in a manner known per se from its generally horizontal horizontal conveying position (iw s. Fig. 3a) is pivotable upwards about its downstream pivot axis (17). 4. Conveyor device according to claim 2, and / or 3, characterized in that the swivel drives ( 21 ) of the two swivel conveyors ( 11 , 12 ) can be controlled by the same control device ( 19 ) so that the second swivel conveyor arranged downstream in the conveying direction ( 10 ) ( 12 ) can be swung up from its normal conveying position into its swivel end position at the same time when the upstream first swivel conveyor ( 11 ) is swiveled down from its normal conveying position. 5. Conveyor device according to claim 4, characterized in that the relative pivoting speed of the two pivoting conveyors ( 11 , 12 ) of a pair of pivoting conveyors ( 11 , 12 ) is at least so large that the distance (h) between the conveying surface ( 30 ) in the conveying direction ( 10 ) upstream first swivel conveyor ( 11 ) and the underside of the downstream second swivel conveyor ( 12 ) is greater than the height (a) of a piece goods part ( 2 ') to be delivered or discharged at the two delivery point ( 7 ), if this is on the in Swinging state of the conveying surface ( 30 ) of the first swiveling conveyor ( 11 ) bent down (see FIG. 3c). 6. Conveying device according to one or more of the preceding claims, characterized in that a swivel conveyor ( 11 ; 12 ) by means of one of its swivel drive motor ( 21 ) via a chain drive ( 22 ) or the like. Eccentric crank drive ( 23 or 23 ') is pivotable, the crank rod (s) ( 24 , 24 ' or 25 , 25 ') articulated on an eccentric disc ( 26 , 26 ' or 27 , 27 ') at its other end section (in each case) on a lateral extension ( 28 , 28 'or 29 , 29 ') of the swivel conveyor ( 11 or 12 ) is (are) articulated, which is arranged at a distance from the swivel axis ( 16 or 17 ). 7. Conveyor device according to claim 6, characterized in that both swivel conveyors ( 11 , 12 ) of each / each swivel conveyor pair ( 11 , 12 ) are provided with their own eccentric crank mechanism ( 23 or 23 '), the two eccentric disks or arms ( 26 , 26 'or 27 , 27 ') of each eccentric crank drive ( 23 or 23 ') carrying axles ( 31 or 31 ') are driven by a common drive ( 21 ).