DE3722515C1 - Device for sorting containers, bottles, packaging units (packaged goods) conveyed on a main conveyor with variable velocities, in a straight line, in one plane, in a specific direction onto at least one other conveyor - Google Patents

Abstract

The invention relates to a device for sorting packaging units, for example bottles, cans or other packaged goods. It is proposed to execute the sorting out only by means of an orthogonal movement from a main conveyor to at least one secondary conveyor in such a manner that the packaged goods in question are provided with a movement pulse on the main conveyor, which movement pulse increases steadily from a minimum value to a maximum value. For this purpose, at least two sorting-out parts are used which consist of two brush halves whose bristles of equal length are brought to bear against the packaged goods.

Description

genus

The invention relates to a device for sorting from on a main conveyor with variable speeds rectilinear in one plane in a certain Direction of containers, bottles, packaging units transported (General cargo) to at least one other in the same level and in the same direction as well in parallel to the main sponsor a sorter designed as a rotor, which next to arranged the main conveyor and motor intermittent is drivable and orthogonal to the longitudinal axis of the movement of the main conveyor with a reject part the general cargo presses and at least from the main conveyor moved one of the other sponsors away.  

State of the art

A device of the generic type is entitled by a prospectus of the applicant "The bottle sorting system with the fascinating sorting system" previously known. This described with "Rotamatic" Device enables a multi-way bottle sorting. The bottles are sorted with a brush-coated one Rotor that makes the bottles almost silent and secure sorted out. The brush coated rotor has the same diameter everywhere.

DE-OS 34 24 360 describes a device for sorting out of packaging units identified as defective, especially of bottles, previously known, these packaging units by transferring a first one horizontal conveyor belt on a second parallel next to it running conveyor belt using one of the bottles Issuing motion impulse transversely to the tape running direction Deflection device used by a detection station for defective bottles is controlled precisely, whereby the deflection device is a motor-driven shaft with a screw spiral segment that is in tape direction increases. The drive shaft is outside the movement path of the bottles parallel to the conveyor belts arranged. The screw spiral segment extends over a rotation angle of approximately 180 degrees. drive shaft  and screw spiral segment should be formed in one piece be made of plastic. The device has an electric motor and one through the detection station switchable clutch for driving the deflection direction.

A disadvantage of this type of construction described last is that the objects over a relatively long Path in contact with the screw spiral segment remain so that they scratch and get damaged can. Vibrations can also occur during this path o. Like. transferred to the objects to be sorted out. Another disadvantage is the relatively high design Effort of this known type.

From US-PS 44 74 295 or from the same content DE-PS 31 10 883 is a device for sorting on a straight line with variable speeds moving objects (containers, bottles, packaging units), previously known by clicking on the subject a movement impulse within a predetermined time unit is exercised, the object a movement granted that deviates from the straight-line trajectory, the motion impulse only orthogonal to the straight line Path of movement of the main conveyor against the general cargo acts for a predetermined period of time, wherein  the movement pulse of a predeterminable minimum value up to a maximum value during the sorting out of one Packaging unit steadily increasing on a secondary conveyor is changed.

For this purpose, a device for sorting out as incorrectly identified packaging units are provided, which by transferring them from a first horizontal Plate conveyor on a second synchronously running parallel next to it Plate conveyor using one of the packaging units giving a movement impulse transversely to the tape running direction Deflection device used by a detection station for defective packaging units controlled precisely and which is at rest by a small amount in protrudes the conveying path of the packaging units. The Deflection device is designed as a plunger, which on free end at least one around a vertical axis pivoted, with a circumferential tire made of foam rubber or the like provided roll. It can also two rollers on top of each other at the free end of the ram be arranged so that the center of gravity of each packaging unit in a horizontal plane between the both roles. The role or roles are freely rotatable on the ram and can be synchronized to the conveying speed of the packaging units  be driven by rotation. Serves to actuate the plunger a pressure cylinder, in particular as a pneumatic cylinder should be trained. From the same Applicants or inventors such as DE-PS 31 10 883 (US-PS 44 74 295) declining DE-PS 34 24 360 and the GM 84 19 827 with the same content results in that the dynamics of the pressure cylinder in US-PS 44 74 295 (DE-PS 31 10 883) for driving the tappet Sorting device on the bottles to be sorted out a cross pulse with a shock or impact load of the bottle that still creates the danger mountains that bottles with a low filling level fall over during the sorting process and the fallen ones Bottles can cause malfunctions. It must one can imagine that such sorting devices Hourly output of approximately 70,000 to 100,000 bottles, that's 1167 bottles / min., that's 19 bottles / sec., have to deal with. If a bottle tips over, run like this numerous bottles break in seconds, so that the Plant must be shut down.

Another disadvantage of this known sorting out device is that the  Rollers with foam rubber coating and the roller bearing at the free one End of the plunger due to the signs of wear and the pollution exchanged regularly should be.

In addition, the control accuracy is not so easy to control because the plunger moves back and forth must perform and always with the high hourly outputs again by the most accurate, predeterminable amount has to protrude into the conveyor path what is in the Practice is difficult to achieve.

It has also been shown to be practical It does not matter whether the role protrudes into the funding path or not whether it turns and in the conveyor protrudes or as a fixed protruding into the conveyor path Role is formed.

From US-PS 34 71 012 a device is previously known for sorting straight on a main conveyor transported in a plane in a certain direction Containers, bottles, packaging units (general cargo) on at least one other in the same level and in the same direction and parallel to the main conveyor  conveying conveyor by means of a rotating endless belt Trained rejectors who work alongside the main conveyor arranged and driven intermittently by motor and is controlled by a detection station with a Sorting part a movement impulse against the general cargo exercises and it from the main sponsor to at least one the other conveyor moves away, and that moves distinguishes that the rotating endless belt on its Has two or more reject parts.

This device is structurally very complex and is hardly or only partially due to the high hourly output applicable.

task

The invention has for its object a device of the type described above in such a way that the repeatability even at high and very high performance works reliably and the contact time of the sorter with the one to be sorted out General cargo is only low.  

solution

This object is achieved in the characterizing part of patent claim 1 specified features solved.

When using the device according to the invention the object to be sorted out no longer such as e.g. B. in DE-OS 34 24 360 along a screw spiral moved, but only orthogonal to the direction of movement pushed off the conveyor. In this way the contact time between the reject and general cargo keep relatively short.

The movement impulse is timely from a detection station, on the movement path of the general cargo the main conveyor is driven, where repeatability even at high and very high Services from z. B. 150,000 piece goods per hour reliable works. With the device according to the invention problem-free sorting or distribution is possible. In this way, z. B. incorrect or not Containers belonging to the program, not completely or packaging units not filled at all, such as Recognize and sort out bottles, cans or the like. It is also possible to have the same or different Packing units on different in addition to the main conveyor moving at predetermined speeds  Sort out conveyors, so that the subsequent density of piece goods on the individual conveyor belts, e.g. B. on packaging machines at the end of the conveyor and / or coordinate people working in these areas to let.

The touch time of the sorter, i.e. H. the duration the movement impulse can e.g. B. five milliseconds is, however, basically based on the conveying speed the general cargo on the main conveyor. The duration of the movement impulse can be synchronized with the Transport speed of the main conveyor controlled will.

The repeatability is z. B. ± 0.1 millimeters for the position of the sorted parts, even with very high working frequency of z. B. 100,000 at 150,000 Bottles or the like per hour while in one device according to DE-GM 84 19 827 (DE-PS 34 24 360) the speed of rotation of the screw spiral segment the running speed of the conveyor belt matched is such that the point of attack or the area of attack with or with the screw spiral segment on the bottle to be sorted out, synchronized with  the bottle moves diagonally to the conveyor belts, which consists of a movement component towards the conveyor belts and the transverse movement component initiated by the screw spiral segment results in the invention an orthogonal, i.e. right-angled pushing or Sort out, the one to be sorted out or deported General cargo no longer at the reject parts grinds along and therefore not damaged, e.g. B. can be scratched.

Are several, z. B. two (claim 2) or three (claim 3) Sorting parts arranged so that one can Main sponsor on a corresponding number of other secondary sponsors Sort out general cargo.  

The individual reject parts can be in simpler Formed in such a way that z. B. at two off grader divide the halves of a round brush on the Radius of the rotor can be shifted against each other. Thereby there are different strokes for the reject parts and, so to speak, "round wedges" that occur when turning the rotor gradually from a minimum value to a maximum value increase and thereby sort out general cargo such as Bottles, cans or other packaging units orthogonal to the direction of conveyance of the main conveyor on secondary conveyors deport.

If three or more such round brush parts are provided, so these sector sections can be made from one and the same Round brushes are formed, which are then placed on a star Rotor carrier body arranged against each other and locked in place, making the different Strokes of the reject parts are formed.

In all cases there is an easy, problem-free stroke adjustment given the reject parts, what z. B. continuously can happen.  

The sorting parts can be attached using screws, Split pins, end plates, a cone or other suitable Fasteners, preferably detachable, adjustable and in the desired position of the reject parts can also be locked.

In the drawing, the invention is - partly schematic - illustrated by exemplary embodiments. It shows:

Fig. 1 shows a section along the line II of Fig. 2;

Fig. 2 is a section along the line II-II of Fig. 1;

Fig. 3 is a view in the direction of arrow X of Figure 1, with two sorting parts.

Fig. 4 is a view in the arrow direction Y of Figure 1, in another embodiment, with three Aussortiererteilen.

FIG. 5 shows a cross section through the rejection device shown in FIG. 3 with rejection parts adjusted to the same strokes;

FIG. 6 shows a cross section through the embodiment shown in FIG. 4, the reject parts being set to three different strokes and

Fig. 7 is a section along the line VII-VII of FIG. 2.

Reference number 1 denotes an end plate, while 2 represents a mounting plate and 3 and 4 are side parts.

A rotor is designated by reference number 5 ( FIG. 2) and a motor holder by reference number 6 , while 7 represents a bearing block ( FIG. 1).

A pair of bevel gears is shown at 8 ( FIG. 1) which meshes with one another.

9 are two flanged disks, 10 a timing disk, 11 a toothed disk, 12 a tension pulley ( FIG. 2), 13 and 14 ( FIGS. 2 and 1) toothed disks, 15 ( FIG. 2) a rotor shaft, 16 a bevel gear shaft ( FIG. 1 ), 17 a bolt, 18 and 19 spacer rings ( Fig. 2).

The reference numeral 21 designates a thrust washer, while 22 represent two rotor segments ( FIGS. 3 and 5) and 23 represent three rotor segments ( FIGS. 4 and 6).

25 ( Fig. 2) are walls, 26 ( Fig. 1) a coupling, 27 ( Fig. 1) a DC gear motor, 28 a vacuum generator ( Fig. 1), 29 tensioning elements, 30 and 31 toothed belts ( Fig. 2 and 1 ), 20 , 32 deep groove ball bearings, 33 deep groove ball bearings, 34 and 35 circlips ( Fig. 2).

With 36 , 37 , 38 , 40 and 41 ( Fig. 1 and 2) keys are designated, while 42 and 43 represent hexagon nuts ( Fig. 2).

44 , 45 and 46 are cheese head screws ( Fig. 1).

The reference numeral 47 designates a proximity switch.

From Fig. 5 it can be seen that the rotor shaft 5 has a hub 49 and two diametrically opposite vanes 50 and 51 , which are integrally connected to the hub 49 by welding to it.

The two rotor segments 22 have halves 22 a , 22 b of a brush formed with the same diameter. These two brush halves 22 a and 22 b are displaceable on the diameter, that is to say displaceable in the direction X and Y, and can also be locked in the desired position, for. B. by cone clamping elements.

The reference numerals 52 and 53 denote orthogonal center lines, the intersection of the center line 52 and 53 coinciding with the center of the rotor shaft 5 . A circumference, the center of which also lies at the intersection of the center line 52 and 53 , can be of different sizes in the X and Y directions by differently setting the brush halves 22 a and 22 b .

In Fig. 5, this stroke is designated by the reference numerals I-II and of the same size. A full removal (sorting out) of packaging units 54 onto another conveyor is therefore always possible after 180 degrees. If this stroke is I-II - which will be described in connection with FIG. 6 - different, the packaging units 54 can be sorted out on different conveyors. The contact distance is denoted by the radian Z ( Fig. 5), while the radian K , in particular continuously, adjustable, can be formed. The brush halves 22 a and 22 b are thus offset from one another in this embodiment by 180 degrees over the circumference of the rotor. This enables a very high frequency (number of packaging units 54 to be sorted out per time unit). These packaging units 54 are shown schematically in FIG. 2. The conveyor on a main conveyor 62 is in this embodiment in the direction of arrow E. At 55 , a known detection station is arranged, from which a control pulse is sent to the clutch 26 , so that switching on the clutch 26 drives the rotor shaft 5 and z. B. on the sorting parts 22 a and 22 b the sorting of the packaging units 54 in question takes place on the secondary conveyor, not shown. Since in the embodiment according to FIG. 5 a new rejection part is available after 180 degrees, a very high frequency is possible. It is clearly evident from Fig. 2 that while the Aussortiererteile 22 a and 22 b only in the direction D on the packaging 54, for example bottles, to act, and these in which the action takes place on one or shift more secondary conveyor, only the center of gravity of the packaging unit 54. The height with which the sorting parts 22 a and 22 b or other sorting parts act on the relevant packaging units 54 is height-adjustable in all exemplary embodiments of the invention and can also be locked in the desired position, so that differently sized packaging units with one and the same device according to the Invention can be sorted.

In the embodiment according to FIG. 6, three vanes 56 , 57 and 58 are arranged on the rotor shaft 15 at a distance of 120 degrees from one another, each of which is assigned one of three rotor segments 23 of the same size, with the reference symbols 23 a , 23 b and 23 c Brush parts of the same size and with the same length of bristles are designated. These brush parts 23 a , 23 b and 23 c have been formed from the same sections of a brush with a circular cross section, these brush parts 23 a , 23 b and 23 c , which are referred to as sorting parts, being arranged in different circles in the embodiment shown in FIG. 6 , so that when the rotor 5 rotates the reject parts 23 a , 23 b and 23 c strokes I, II and III and are thus able to sort out packaging units 54 on three different secondary conveyors (push off). The contact distance is designated with the radian F. The sorting parts 23 a , 23 b and 23 c can be locked in the desired position by cone clamping elements. In this embodiment, a new sorting part 23 a or 23 b or 23 c is thus already available after 120 degrees, so that a very high sorting frequency is possible. 59 , 60 and 61 are segments.

In all embodiments, the main conveyor can be used variable speeds are driven. Nevertheless is a problematic sorting out with high and highest Frequency possible.  

• 1 end plate
  2 mounting plate
  3 side part
  4 side part
  5 rotor
  6 motor mounts
  7 bearing block
  8 bevel gear pair
  9 flanged wheels
  10 clock disc
  11 tooth lock washer
  12 tension pulley
  13 tooth lock washer
  14 tooth lock washer
  15 rotor shaft
  16 bevel gear shaft
  17 bolts
  18 spacer ring
  19 spacer ring
  20 deep groove ball bearings
  21 thrust washer
  22 rotor segment, double
  22 a brush half, sorting part
  22 b Brush half, sorting part
  23 rotor segment, triple
  24 -
  25 wall
  26 clutch
  27 DC gear motor
  28 vacuum generators
  29 cone clamping elements
  30 timing belts
  31 timing belts
  32 deep groove ball bearings
  33 deep groove ball bearings
  34 Seeger ring, circlip
  35 Seeger ring, circlip
  36 key
  37 key
  38 key
  39 key
  40 key
  41 key
  42 hexagon nut
  43 hexagon nut
  44 socket head screw
  45 cylinder screw
  46 cheese head screw
  47 proximity switches
  48 -
  49 hub
  50 wings
  51 wings
  52 center line
  53 center line
  54 packaging unit
  55 recognition unit
  56 wings
  57 wings
  58 wings
  59 segments
  60 segments
  61 segments
  62 main sponsors
  I stroke
  II stroke
  D Pulse direction of the reject parts
  E Direction of conveyance on main conveyor
  F contact distance
  K adjustable radians
  X Shift (setting) direction
  Y Shift (setting) direction
  Z contact distance

Claims (9)

1.Device for sorting containers, bottles, packaging units (piece goods) transported on a main conveyor at variable speeds in a straight line in one plane in a certain direction onto at least one other conveyor in the same plane and in the same direction and parallel to the main conveyor by a conveyor A sorter designed as a rotor, which is arranged next to the main conveyor and can be driven intermittently by a motor and which presses orthogonally to the longitudinal axis of the movement of the main conveyor with a sorter part against the piece goods and moves it away from the main conveyor onto at least one of the other conveyors, characterized in that the rotor ( 5 ) has two or more sorting parts ( 22 a , 22 b , 22 c ) on its circumference, which are arranged in the same cross-sectional plane orthogonal to the axis of rotation of the rotor and consist of brush segments of a brush with a circular cross section, this brush tense gmente with respect to the axis of rotation ( 15 ) of the rotor ( 5 ) are arranged eccentrically. 2. Device according to claim 1, characterized in that over the circumference of the rotor ( 5 ) two sorting parts ( 22 a , 22 b) are arranged offset from one another with the same angular distance over the circumference of the rotor ( 5 ). 3. Apparatus according to claim 1, characterized in that over the circumference of the rotor ( 5 ) three sorting parts ( 22 a , 22 b , 22 c) are arranged offset from one another at the same angular distance over the circumference of the rotor ( 5 ). 4. Apparatus according to claim 1 or one of the following, characterized in that the bristles of the sorter parts ( 22 a , 22 b , 22 d) are of equal length. 5. The device according to one or more of the preceding claims 1 or one of the following, characterized in that the eccentricity and thus the stroke (I. II. III) of the sorting parts ( 22 a , 22 b , 22 c) is adjustable. 6. The device according to claim 1 or one of the following, characterized in that the reject parts ( 22 a , 22 b , 22 c) are locked by at least one cone clamping element. 7. The device according to one or more of claims 1 or one of the following, characterized in that the point at which the sorting parts ( 22 a , 22 b , 22 c) come to rest against the packaging unit ( 54 ), adjustable in height and in the desired height is also lockable. 8. The device according to one or more of claims 1 or one of the following, characterized in that the contact distance (Z) is adjustable. 9. The device according to one or more of claims 1 or one of the following, characterized in that with a hub ( 49 ) of the rotor shaft ( 15 ) two or more blades ( 56, 57, 58 ) are integrally connected, with which the reject parts ( 22 a , 22 b , 22 c) are releasably locked.