DE102011085031A1 - Band feeder with hinged outlet arrangement - Google Patents

Abstract

Band applicator (1) for separating a plurality of stacked, substantially flat products with
A drive (3),
- a separation order (5) and
An outlet arrangement (7),
wherein the separating arrangement (5) has at least one separating belt (50) and at least one separating roller (51) which are arranged relative to each other and articulated by the drive (3) such that individual products are arranged between the separating belt (50) and the separating roller (51). through into the outlet arrangement (7),
wherein the outlet arrangement (7) has at least one upper outlet extension (70) with at least one upper outlet strip (72) and a lower outlet extension (71) with at least one lower outlet strip (73) arranged in such a way to one another and articulated by the drive (3) in that the separated product is transported further between the belts (72, 73), wherein the upper run-out extension (70) is made hinged.

Description

The present invention relates to a belt feeder according to the preamble of patent claim 1.

Band feeders are an important component in modern packaging systems. They make it possible to selectively remove a workpiece from a large number of workpieces, in particular essentially flat workpieces, and feed it to a subsequent processing or packaging process. In general, the workpieces are inserted as a stack in a magazine of Bandanlegers. During singulation, the lowermost workpiece in the stack comes into contact with at least one singulating belt and at least one singling roller corresponding to this singling belt and is removed from the stack. Thereafter, the separated workpiece is transferred in the transport direction in a discharge area, from where the further processing or packaging takes place. For example, the workpiece can be printed, glued, packaged or welded.

A belt feeder known from the prior art for separating a plurality of stacked, substantially flat products generally has a drive, a separating arrangement and an outlet arrangement, wherein the separating arrangement has at least one separating belt and at least one separating roller arranged in such a way and from are articulated to the drive that individual products are transferred between the separating belt and the separating roller through into the outlet arrangement, and wherein the outlet arrangement has at least one upper outlet extension with an upper outlet conveyor and a lower outlet extension with a lower outlet conveyor arranged in such a way and from the Drive are articulated that the isolated product between the belts is transported.

In the known from the prior art band investors, it is considered disadvantageous that a fault clearance is relatively complex and brings a change of Verscheißteilen usually disassembly of a large number of components of Bandanlegers with it.

It is the object of the present invention to provide a band feeder in which a fault elimination can be done in a simpler manner.

This object is achieved by a belt feeder with the features of claim 1.

An inventive strip feeder for separating a plurality of stacked, substantially flat products has a drive, a separating arrangement and an outlet arrangement, wherein the separating arrangement comprises at least one separating belt and at least one separating roller, which are arranged to one another and articulated by the drive that individual products between the singulating belt and the singling roller being transferred into the outlet arrangement, the outlet arrangement comprising at least one upper outlet extension with at least one upper outlet strip and one lower outlet extension with at least one lower outlet strip which are arranged relative to one another in such a way that separated products continue to be conveyed between the strips be, with the upper outlet extension is designed hinged.

A hinged design of the upper outlet extension allows for simplified troubleshooting in a transfer area between the separating arrangement and the outlet arrangement. The fact that the upper outlet extension can be folded down, d. H. The fact that a region of the upper outlet extension in the transporting direction can be separated from the lower outlet extension offers the possibility of being able to eliminate disturbances caused by, for example, jammed products particularly easily, since improved accessibility of the transfer area and of a rear area of the outlet arrangement is ensured.

Such a hinged design of the upper outlet extension is particularly easy to achieve in that the upper outlet extension is driven and stored via a pivotally mounted at both ends about parallel axes drive arm.

By such a mounted drive arm is made possible that the upper Auslaufverlängerung over the drive arm away, for example, folded forward in the transport direction or can be pivoted so that it rests on the lower Auslaufverlängerung after folding and at the same time lying in the transport direction of the area of the outlet arrangement for Troubleshooting is released. Such a configuration is particularly low, since an Abschwenkbarkeit and the resting of the upper Auslaufverlängerung after pivoting on the lower Auslaufverlängerung an operator has both hands free to eliminate any disturbance in the releasing area.

At the drive-side end of the drive arm, a stop may be provided which defines a minimum second distance is provided between the end of the upper outlet extension facing the separating arrangement and the lower outlet extension and / or the separating belt.

A corresponding stop can ensure that a minimum distance is not undershot between the end of the upper outlet extension and the lower outlet extension and / or the separating belt in the transport direction, so that it is possible to prevent the outlet tapes of the upper outlet extension in this area from being deflected on the lower outlet extension and / or the separating belt rest and thus subjected to increased wear.

The stop is preferably designed to be adjustable. By an adjustable design of the stop, the second distance can be additionally adjusted to a product-dependent minimum distance. Depending on the type of products to be processed, it is thus not only possible to avoid resting the upper run-out extension on the lower run-on extension and / or the singling belt, but also to determine which distance between the components for the respective product category may not be undershot.

In order to ensure the best possible functionality of the outlet arrangement may additionally be provided a variable stop for adjusting a parallelism between the upper outlet extension and the lower outlet extension.

By an additional variable stop for adjusting the parallelism can be achieved, for example, that the upper outlet extension does not begin to oscillate when passing through products. In the prior art, it is sometimes necessary that the upper spout extension is tensioned by laterally arranged tension springs in the direction of the lower spout extension, as this is the only way to avoid lifting of the upper spout extension due to the rotation direction of the spout belts and due to the changed distance during the passage of products can. By providing the second variable stop, abrupt changes in the distance between the upper spout extension and the lower spout extension are avoided so that vibrations due to these changes in distance can be reduced.

In order to be able to adapt an angle at which the products emerge from the outlet arrangement to a subsequent processing machine, it makes sense to make the outlet device pivotable perpendicularly to the transport direction.

In a preferred embodiment, the upper outlet extension is formed longer than the lower outlet extension.

By extending the upper outlet extension, it can be achieved that the upper outlet extension with its end facing the separating arrangement is brought closer to the separating arrangement, so that a region without guidance of the separated products can be minimized in the transfer region between the separating arrangement and the outlet arrangement. Due to the longer design of the upper outlet extension, both outlet extensions can nevertheless end in parallel in the transport direction.

An additional stabilization of the separated products at the transport direction in the end of the outlet arrangement can be achieved if the upper outlet extension projects beyond the lower outlet extension in the transport direction. Such a configuration makes it possible, in particular, to dispense with a stabilizing air flow, which counteracts lifting off of the products, since the upper outlet extension can be designed to overlap a downstream further processing device.

Advantageously, the separating arrangement facing the end of the upper outlet extension overlaps seen in the transport direction with the separating belt.

By such overlapping of the separating belt and the upper outlet extension meshing of separating arrangement and outlet arrangement is achieved, so that a region in which the separated products are transported without a guide, can be further minimized.

A particularly favorable arrangement is achieved if a deflection roller located in the rear direction of the upper outlet extension and a front lying in the transport direction deflection roller of the separating belt are arranged overlapping in the transport direction. In this case, the second distance, which can be fixed by way of the adjustable stop, lies between the separating belt in the region of the deflecting roller lying in front in the transport direction and the outlet belt in the region of the deflecting roller located in the rear in the transport direction. In this case, the two deflection rollers are preferably arranged such that their axes of rotation are arranged parallel to one another in a plane perpendicular to the transport direction. It will be on this Way achieved that the second distance can be set very precisely.

An improvement of the handling of the tape feeder can be achieved by providing a coupling which also causes a change of the second distance in the case of a change of a first distance between the separating roller and the separating belt.

In this way it is achieved that when changing over to a product other thickness only the first distance must be set precisely and an adjustment of the second distance is carried out automatically via the coupling.

A particularly simple embodiment of such a coupling can be achieved if it is designed as a push rod, which acts on the drive arm such that the second distance is changed corresponding to the first distance.

All provided as a separation or outlet conveyor belts can be designed as so-called. Friction belts, friction suction belts or tunnel belts.

The present invention will be explained below with reference to an embodiment with reference to the accompanying figures.

Show it:

1 a perspective view of a band feeder according to the invention from an angled front,

2 a perspective view of the band feeder off 1 from the direction of the base plate,

3 a section through the belt feeder from the 1 and 2 parallel to the base plate,

4 a perspective view of the band feeder of the 1 to 3 from diagonally behind and

5 the upper outlet extension of the band feeder from the 1 to 4 ,

1 shows a perspective view of a Bandanlegers invention 1 from diagonally forward.

The band investor 1 has as essential components a separating arrangement 5 and a discharge arrangement arranged in the transport direction after the singling arrangement 7 on. Products to be separated become the separation arrangement 5 via a so-called round rod magazine 23 consisting of a stacking plate 25 , two lateral guide plates 24 and arranged on the front side round rods for retaining the products supplied. A product lying at the bottom in a stack of products to be separated comes with the parallel separating bands 50 as well as the corresponding to the singulation bands 50 arranged separating rollers 51 in contact and is extracted by this from the product stack and the outlet arrangement 7 fed.

The outlet arrangement 7 consists essentially of a lower spout extension 71 and an upper spout extension 70 , The respective parallel running, aligned in the direction of transport and counter-driven discharge belts 72 . 73 exhibit. In the present embodiment, two upper outlet tapes are on the upper outlet extension 72 and at the lower outlet extension 71 four lower discharge belts 73 intended. The outlet tapes 72 . 73 be at the spout extensions 70 . 71 over in the transport direction rear drive rollers which are connected via respective associated drive shafts with the drive, driven and are supported in the transport direction on the front side over deflection rollers.

Advantageously, the drive rollers for the discharge belts 72 . 73 for the upper outlet extension 70 and the lower outlet extension 71 an identical scope and are over a toothed belt 32 of the drive at the same speed and driven in opposite directions. This will ensure that one between the spout extensions 70 . 71 product located evenly in the direction of transport T between the outlet extensions 70 . 71 is transported.

All components of the tape feeder 1 are on a laterally arranged base plate 9 arranged. This base plate 9 is pivotable about a pivot axis A on a fastening device 11 , which is formed in the present embodiment as a mounting foot stored. By a pivoting of the band feeder 1 can, for example, a tendency of the separation arrangement 5 be adjusted relative to the horizontal, so that depending on the properties of the products to be separated an additional force in the direction of transport direction T can be achieved.

To a reliable separation of the round rod magazine 23 It is necessary to achieve a first distance d1 between the separating rollers 51 and the singulation tapes 50 as exactly as possible and adjusted to the products to be separated. A particularly good adjustability of this first Distance d1 is achieved by the singulation bands 50 , which are aligned in the transport direction T front and back on guide rollers, in the area between these guide rollers on a separating plate 52 to run. This separating plate 52 on which the singulation tapes 50 especially in the area where the separating rolls 51 are arranged, rest, is a defined first distance d1 between the underside of the separating rollers 51 and the singulation tapes 50 achieved, which is largely independent of a tension and independent of one on the separating belts 50 Lasting weight can be adjusted.

An adjustment of this first distance d1 via so-called millimeter screws 41 that via ball and socket shafts 42 on an adjustment arrangement 4 Act. The millimeter screws 41 are to ensure correct alignment on an orthogonal to the base plate 9 arranged traverse 40 attached.

One turn of the millimeter screws 41 acts via the ball joint shafts 42 on the adjustment arrangement 4 , which is designed to be pivotable in the present embodiment. The separating rollers 51 or one the separating rollers 51 driving shaft is on the adjustment assembly 4 via a pivoting arrangement 6 arranged pivotally. The swivel arrangement 6 is on the adjustment assembly 4 via a fixing arrangement 8th , in the present embodiment as an index pin 8th is formed, can be fixed in a defined position. The index bolts 8th are designed as conically tapered index pin and thus ensure an exact alignment of the pivot assembly 6 to the adjustment arrangement 4 ,

Through this two-part design, it is possible that on the one hand on the millimeter screws 41 an exact adjustment of a distance of the separating rollers 51 to the singulation bands 50 is made and on the other hand by loosening the index pin 8th the swivel assembly 6 from the adjustment arrangement 4 swung and thus the distance between the separating rollers 51 and the singulation tapes 50 can be increased. In this way, it is particularly easy, disturbances, for example, obliquely or multiply retracted products, in the area of the separation arrangement 5 to remove.

To pivot the pivot assembly 6 from the adjustment arrangement 4 simplify is at the swivel assembly 6 laterally a handle 61 for lifting the swivel assembly 6 together with the separation rollers 51 intended.

In 2 is the band investor off 1 shown in a slightly rotated perspective view.

In the illustration in 2 is particularly well recognizable that the base plate 9 is used for storage of all driven shafts and all attachments. The drive 3 is about a motor 30 , which is arranged below the separating plate in the present embodiment, driven. A drive axle of the engine 30 is arranged in extension of the pivot axis A and acts on one of the various waves of Bandanlegers 1 driving timing belt 32 ,

How out 2 it can be seen, is the base plate 9 over a flange 12 on the mounting arrangement 11 arranged and via a clamping device 13 fixed in position relative to the mounting arrangement. A change in the angle of inclination of the tape feeder 1 relative to the mounting arrangement 11 can by loosening a screw of the clamping arrangement 13 and by pivoting the Bandanlegers 1 take place about the pivot axis A.

In 2 It can also be seen that a distance between the upper outlet extension 70 and the lower outlet extension 71 through an adjustable stop 78 that is between the spout extensions 70 . 71 is arranged, can be fixed. By the stop 78 can be avoided so that the upper discharge belts 72 on the lower outlet extension 71 rest, resulting in a higher wear of the outlet tapes.

3 shows a longitudinal section through the belt feeder 1 from the 1 and 2 parallel to the base plate 9 ,

In the sectional view from 3 is particularly well the function of the invention Bandanlegers 1 to recognize. Products to be separated are stacked in the round bar magazine 23 ie in the present illustration between the stacking plate 25 and the separation roles 51 , inserted. A product lying low in the stack is separated from the singulation belts 50 and the separation rollers 51 recorded and due to the opposite course of the separation bands 50 and the separation roles 51 between them in the direction of the outlet arrangement 7 transported. In the outlet arrangement 7 The product extracted from the stack is between the outlet belts 72 . 73 moved further in the transport direction T and at the end of the outlet extensions 70 . 71 For example, issued in a downstream processing process.

Because of that, just below the singulation rollers 51 the separating plate 52 is arranged, the first distance d1 between the underside of the separating rollers 51 and the singulation tapes 50 that over the singulation plate 52 run, be particularly accurate. An actuation of the millimeter screws 41 causes an extension or shortening of the distance between the on the crossbar 40 arranged millimeter screw 41 and the over the ball joint shaft 42 with the millimeter screw 41 connected adjustment arrangement 4 , The adjustment arrangement 4 is arranged so pivotable that a change in the distance between the millimeter screw 41 and the adjustment assembly 4 a change of the first distance d1 between the separating rollers 51 and the singulation tapes 50 causes. The separating rollers 51 are, as already described, on the pivot assembly 6 using the index pins 8th on the adjustment assembly 4 is fixable, with this releasably connected. By loosening the index pins 8th is it possible to do the singulation roles 51 from the singulation bands 50 fold down and thus eliminate disturbances in this area comfortably.

3 also shows that the upper spout extension 70 via a double pivotally mounted drive arm 20 is driven. One in the swivel arm 20 arranged drive belt acts at one end on the rear in the transport direction role 75 the upper outlet extension 70 and so drives the upper outlet tapes 72 at the other end is articulated via the drive, so that a synchronization of the upper and lower discharge belts 72 . 73 is guaranteed. Due to the double pivoting linkage of the upper outlet extension 70 it is possible to lift these in the rear area and over the swivel arm 20 fold out to the front, so disturbances in a transfer area between the separation arrangement 5 and the spout assembly 7 so can be easily eliminated.

About a push rod 15 as well as an adjustable stop 21 is the drive arm 20 also with the adjustment arrangement 4 connected, so that an adjustment of the first distance d1 between the separating rollers 51 and the singulation tapes 50 at the same time setting a second distance between the upper outlet extension 70 and the singulation tapes 50 or the lower outlet extension 71 causes.

In 3 is also particularly well the pivotal mounting of the band feeder 1 over the base plate 9 on the mounting arrangement 11 to recognize. In the present illustration, the motor sitting on the pivot axis A or main drive shaft is omitted for reasons of clarity, so that the pivot axis A is due to the circular configuration of the flange 12 with which the base plate 9 and the mounting arrangement 11 are particularly well recognizable.

4 shows the band investor 1 from the 1 to 3 in a perspective view from the rear, wherein the round rod magazine 23 as well as some of the base plate 9 oppositely arranged attachments are not shown for reasons of clarity.

In this illustration, it is particularly easy to see how the millimeter screws 41 over the ball joint shafts 42 on the adjustment arrangement 4 with which the swivel assembly 6 over the index bolts 8th connected, act. In this illustration, the Abschwenkbarkeit the separating rollers is also 51 with the help of the swivel assembly 6 after loosening the index pins 8th particularly easy to recognize.

The index bolts 8th are designed as conical index pins, so that a precise alignment of the pivot assembly 6 to the adjustment arrangement 4 is guaranteed.

A basic tension of the singling belts 50 is about one at the separating plate 52 in the transport direction rear shaft arranged 54 adjustable, being on the shaft 54 Guide rollers for guiding the singling belt 50 are provided. A distance of the shaft 54 to the separating plate 52 in transport direction T is through threaded rods, over which the shaft 54 at the separating plate 52 is mounted, adjustable, so that the singulation belt 50 can be operated under optimal bias. The singling belts 50 are preferably designed as a toothed belt, so that a very good drive ability can be achieved even without a very large bias and the associated increased friction.

5 finally shows an enlarged view of the upper outlet extension 70 and the double-rotatably mounted drive arm 20 who has the upper spouts 72 the upper outlet extension 70 drives. The upper outlet tapes 72 be over two drive rollers 75 at the rear in the transport direction T drive shaft of the upper outlet extension 70 driven. A coupling of the driving force via the drive arm 20 , wherein inside the drive arm 20 a circumferential belt to implement the movement of the driven shaft 22 on the roles 75 is arranged. In 5 as well is good the stop 21 to recognize the drop in the rear end of the upper spout extension 70 about the stop 21 prevented.

To maintain a distance in the transport direction T between individual products passing through the outlet assembly 7 be transported, detected or set, is also a photocell 80 at the upper outlet arrangement 70 provided that detects the passage of the individual products and can be used for control and / or regulation.

LIST OF REFERENCE NUMBERS

1

tape investors

3

drive

4

Setting arrangement

5

separation arrangement

6

swivel assembly

7

off arrangement

8th

Fuser assembly / Index Bolts

9

baseplate

10

counterplate

11

mounting assembly

12

flange

13

first clamping arrangement

15

Coupling / push rod

20

drive arm

21

attack

22

driven shaft

23

Rod magazine

24

guide plate

25

stacking plate

30

engine

31

transmission

32

toothed belt

40

traverse

41

millimeter screw

42

Ball joint shaft

50

dicing tape

51

separating roller

52

separation plate

53

commitment

54

wave

61

handle

70

upper outlet extension

71

lower outlet extension

72

Upper outlet conveyor

73

lower outlet conveyor

75

role

76

wave

78

changeable stop

80

photocell

A

swivel axis

d1

first distance

d2

second distance

T

transport direction

Claims (12)

Band feeder ( 1 ) for separating a plurality of stacked, substantially flat products with - a drive ( 3 ), - a separation order ( 5 ) and - an outlet arrangement ( 7 ), the separating arrangement ( 5 ) at least one separating band ( 50 ) and at least one singling role ( 51 ) arranged in such a way to each other and from the drive ( 3 ) are hinged that individual products between the separating belt ( 50 ) and the singling role ( 51 ) into the outlet arrangement ( 7 ), the outlet arrangement ( 7 ) at least one upper outlet extension ( 70 ) with at least one upper outlet conveyor ( 72 ) and a lower outlet extension ( 71 ) with at least one lower outlet conveyor ( 73 ) arranged in such a way to each other and from the drive ( 3 ) that the separated product between the bands ( 72 . 73 ) is conveyed, characterized in that the upper outlet extension ( 70 ) is designed hinged. Band feeder ( 1 ) according to claim 1, characterized in that the upper outlet extension ( 70 ) via a pivotally mounted at both ends about parallel axes drive arm ( 20 ) is driven and stored. Band feeder ( 1 ) according to claim 2, characterized in that on the drive arm ( 20 ) on the drive side a stop ( 21 ) for establishing a minimum second distance (d2) between the separation arrangement ( 5 ) facing the end of the upper outlet extension ( 70 ) and the lower outlet extension ( 71 ) and / or the separating band ( 50 ) is provided. Band feeder ( 1 ) according to claim 3, characterized in that the stop ( 21 ) is adjustable. Band feeder ( 1 ) according to one of the preceding claims, characterized in that a variable stop ( 78 ) for adjusting a parallelism between the upper outlet extension ( 70 ) and the lower outlet extension ( 71 ) is provided. Band feeder ( 1 ) according to one of the preceding claims, characterized in that the outlet arrangement ( 7 ) is designed to be pivotable perpendicular to the transport direction (T). Band feeder ( 1 ) according to one of the preceding claims, characterized in that the upper outlet extension ( 70 ) longer than the lower outlet extension ( 71 ). Band feeder ( 1 ) according to claim 7, characterized in that the separation arrangement ( 5 ) facing the end of the upper Spout extension ( 70 ) in the transport direction (T) with the separating belt ( 50 ) overlaps. Band feeder ( 1 ) according to claim 8, characterized in that in the transport direction (T) rear deflection roller of the upper outlet extension ( 70 ) and in the transport direction (T) front deflection roller of the separating belt ( 50 ) are arranged overlapping in the transport direction (T). Band feeder ( 1 ) according to any one of claims 7-9, characterized in that the upper outlet extension ( 70 ) the lower outlet extension ( 71 ) in the transport direction (T) surmounted. Band feeder ( 1 ) according to one of the preceding claims, characterized in that a coupling ( 15 ) is provided, which in a change of a first distance (d1) between the separating roller ( 51 ) and the singulation band ( 50 ) causes a change of the second distance (d2). Band feeder ( 1 ) according to claim 11, characterized in that the coupling ( 15 ) is designed as a push rod.

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