DE19921131A1 - Switch for a conveyor system, especially for a roller conveyor - Google Patents

Abstract

The invention relates to points for a feeding system, especially a gravity roller table, for turning round material to be conveyed in a level from one main feeder to an auxiliary feeder which bifurcates from the main feeder. The points consist of a group of interacting modules that are especially individually actuated. Each module comprises a pillow block (20, 120), a fork (30, 130) that is pivotably accommodated in the pillow block and around a vertical axis and a roller body (40, 140) that is pivotably mounted in the fork and around a horizontal axis and that partly forms the support for the material to be conveyed (10). The points can be switched from the straight to the turn-round position and vice versa by accordingly pivoting the forks (30, 130) and thereby the roller body (40, 140). The forks and thereby the roller body are lifted into the turn-round position as opposed to the straight position by means of a lifting mechanism which inevitably enters into action when the fork is pivoted from the straight position into the turn-round position.

Description

The invention relates to a switch for a conveyor system, in particular for a roller conveyor, for deflecting conveyed goods in a plane of one main conveyor to one branching off from the main conveyor Secondary conveyor, the switch from a group of interacting, in particular individually driven modules, each one Have a support for the rolling body forming the conveyed goods and where at least the rolling elements of the modules together via an adjusting means a vertical axis are pivotable, according to the preamble of Claim 1.

A transport is from European patent application 0311699 device known with a generic crossover. The rolling elements the modules form a level with the other conveyor rollers, u m on the one hand as a linear conveyor unit together with the upstream ones Form conveyor rollers and on the other hand by twisting them around their own Vertical axes are excluded from the linear funding network can. If the material to be conveyed is diverted to the branching secondary conveyor the modules of the switch are made according to the discharge angle rotated. Becomes a conveyed good with a large floor area transported, so grab more in the conveying direction of the main conveyor acting roller bodies on the underside of the conveyed goods as inclined Roller body of the switch, so that the deflecting forces against the linear forces in the conveying direction of the main conveyor at least partially cancel. This either results in failure of the switch or else an uncontrollable rotation of the material to be conveyed, which in turn leads to a Conveyance backlog can result if the material to be conveyed is in an unfavorable position tilted the roller conveyor.

The invention is based on the object, a good and reliable to provide a functioning switch that can be manufactured inexpensively and so that existing systems can be easily retrofitted.  

This object is achieved in that each module a bearing block and one rotatably accommodated therein, the rolling element bearing fork, which is articulated to the actuating means and the a stroke compared to the pedestal during the swiveling movement movement takes place as stated in the main claim.

The outstanding advantage of the invention is that the modules the switch lift something from the upstream support level so that the Deflection force of the roller body of the switch come into effect. The The result is a directional deflection of the material to be conveyed high web speeds. By lifting the fork or Rollers that rotate during the rotation of the modules or the fork is generated, an otherwise complicated and structurally complex swiveling of the switch parts by separate Adjustment means can be avoided.

Another advantage is; that the lifting movement is no further Control elements are required, since these inevitably control the Swiveling movement of the switch modules is effected.

Another advantage achieved by the measure according to the invention there is an increase in friction between the material being conveyed and the rolling element, which otherwise does not do so or only with otherwise technically complex measures would be achieved.

In a particularly preferred embodiment of the invention provided that lifting means between the bearing block and the fork are trained. This is in a first advantageous embodiment Expediently provided that the lifting means each an oblique Runway on the common contact surfaces between the bearing block and Are fork. This division of the module into the pedestal and fork enables the relative rotation of both parts to each other. This is with a advantageous embodiment of the invention provided that the bearing block has a bearing bush that rises vertically on a mounting base,  in which a bearing pin of the fork is received coaxially and rotatably. This not only enables simple and therefore inexpensive Production of the module parts, but also opens up the possibility of Bearing block with forks that have different rolling elements, exchange. This property can not only be used on different Transport goods are responded to, but usually for various roller conveyors and conveyor systems with the same switch with a difference Lichen roll bodies are used, which is a modular principle equals. As a counterpart to the bearing block is an advantageous one Embodiment of the invention provided a fork that a rotating plate has on which vertically upstanding bearing arms are arranged between which the rolling body is rotatably received and the rotating plate a head plate of the vertically aligned bearing pin rests. The Lifting means, d. H. the sloping runways can be wedge-shaped or helical tools at the bottom of the rotating plate or on the underside of the head plate and similarly designed counter surfaces on the End face of the bearing bush of the bearing block.

In a particularly preferred embodiment of the invention, the Lifting equipment in the form of interacting ribs and hollows, esp specially designed in the form of prism-like pairs of strokes on the fork and bearing block are arranged. This raises the fork when it rotates movement from the pedestal and executes the desired lifting movement. To ensure a synchronous process, i. H. to ensure, that the modules together at an equal angle or their respective Adjustment angle for a common direction of action at the same In an advantageous embodiment, the time to take the time is the Erfin tion provided that the fork of each module is coupled to the actuating means is. For this purpose, it is conveniently provided that the fork approximately has horizontally protruding lever, which is articulated with the adjusting means connected is. The actuator itself can be used with a pneumatic cylinder or are operatively connected to a similar actuator that the  Adjusting means depending on the desired direction of conveyance in one or the other Position shifts and transfers the actuating movement to the modules.

The individual control of the modules or a common control with Different pitch angle can be achieved by the module according to the invention arrangement can be effected.

In a preferred embodiment of the invention it is provided that the rolling body one to one horizontally between the arms of the fork extending axis is rotatable rim on which at least one die Tread for the conveyed goods forming tire is arranged. The The advantage of this measure is that especially when in an expedient embodiment of the invention, the rim has two spaced-apart rim beds between which a pulley is arranged, an endless drive belt be used, the outer circumferential surface below the conveyor level lies, i.e. does not come into contact with the material being conveyed.

There is a support bracket perpendicular to the conveying direction of the main conveyor provided on the side by side, ie parallel to the usual Conveyor rollers arranged the modules at a suitable distance from each other are. This has the advantage that a switch to be used is pre-assembled can be, so that the assembly time on site can be significantly reduced.

Below the modules or the console is one parallel to the console extending drive shaft arranged. Around the drive shaft and over the the upper run forming pulley of the rolling body is an endless one Drive belt out, being between the rotating plate of the fork and the this articulated lever for passing the rotating drive belt suitable channel is formed. That is also in this regard constructively simple but effective drive created. The advantage of What is achieved is that the modules have the same drive units can be operated like the other conveyor rollers without the height or depth of the switch increases significantly.  

The invention enables various on conveyor systems respond to most requirements, d. H. a conversion of an existing one Conveyor system advantageously does not require any major modifications. The lateral cheeks of the conveyor system must be in the area with the Turnout according to the invention is not interrupted. This also has the advantage that the constructive measures can be further reduced because the use of prepared modular elements is not restricted.

With the invention not only conveyor systems with switch sectors can for discharging conveyed goods, but also sorting systems or Systems are created in which the flow rate is broadened, reduced or to be moved in parallel. You can use the fiction Whole switch fields were also formed in accordance with the proposed modules be, the advantage being that different sizes Conveyed goods can be reacted without consuming the roller conveyor to have to convert. Structure the switch modules according to the invention functionally in the funding network with the other linear Conveyor rollers and form a conveyor level with them.

An advantageous embodiment of the invention provides the lifting means on the one hand in the form of hollows and on the other hand with these corres ponding on the fork or the trestle adaptable pins or Training domes. Rivets are ideally suited for this Semicircular heads that are pressed into the fork. The rivet head is standing expediently over the underside of the fork in the direction of the bearing block about. The bearing block has recesses corresponding to the rivet heads.

The advantage of using at least partially adaptable Lifting equipment proves that the fork or the pedestal is not has to be processed laboriously, d. H. the lifting equipment as such not through to attach a manufacturing process to the fork or the pedestal are. Another advantage is that the lifting means if necessary can be replaced if a stronger or weaker stroke  is desired. The same forks or pillow blocks can then be used be used, making the invention even more flexible and adaptable designed more capable.

Especially when there are four cross-shaped troughs and rivets are arranged, the stroke is when turning left or right of the module ensured.

Otherwise, expedient embodiments of the invention are in the other subclaims specified.

In the drawings, a particularly preferred embodiment of the Invention reproduced. Show:

Fig. 1 is a schematic representation of a main and secondary conveyor with a switch in a plan view

Fig. 2 is a side view of a roller conveyor in the area of a switch according to the invention

Fig. 3 is a plan view of the roller conveyor from the direction III indicated in Fig. 2

Fig. 4 shows a section through the roller conveyor along the line IV-IV indicated in Fig. 3

FIG. 4a is an enlargement of the lifting means

Fig. 4b another possible variant of the lifting means

Fig. 5 is a side view of the bearing block

Fig. 6 is a plan view of the bearing block from the direction VI indicated in Fig. 5

Fig. 7 is a side view of the fork

Fig. 8 is a view of the fork from the direction indicated in Fig. 7 in the direction VIII

FIG. 9 is a top view of the fork from the direction IX indicated in FIG. 7

Fig. 10 the rim

FIG. 11 shows a side view of the rim from the direction XI indicated in FIG. 10

Fig. 12 the complete rolling body

Fig. 13 shows the roller from the position indicated in Fig. 12 in the direction XIII

Fig. 14, the actuating means in the form of a coupling rod

Fig. 15 is a plan view of the lever

FIG. 16 shows a side view of the lever from the direction XVI indicated in FIG. 15

Fig. 17 is a side view of the console

FIG. 18 is a plan view of the console from the direction XVIII indicated in FIG. 17

FIG. 19 shows an end view of the console from the direction XIX indicated in FIG. 17

Fig. 20 shows a further embodiment of lifting means in the form of rivets on the fork base and troughs on the bearing block end face

Fig. 21 shows the fork designed according to the variant of Fig. 20 in a view

Fig. 22 is a side view of the fork of FIG. 21

Fig. 23 is a plan view of the fork of FIG. 21 and / or 22

Fig. 24 is a view of the bearing block according to the variant of FIG. 20

Fig. 25 is a plan view of the bracket according to Fig. 24.

Fig. 1 shows a schematic representation of a Haupt- and Nebenför derers with a switch in a plan view. From a linear aligned main conveyor 1 branches off a secondary conveyor 2 , which is supplied via a switch 3 with material 10 . The switch 3 according to the invention is adjusted if necessary, so that their conveying direction acts either in the arrow direction A on the main conveyor 1 or in the arrow direction B to the secondary conveyor 2 and ejects.

As shown in FIGS. 2-4, there is a switch 3 in this Ausführungsbei game of five modules 4-8, which via an adjusting means 9, here a coupling rod, are interconnected. Each module 4-8 consists of a bearing block 20 , a fork 30 rotatably mounted in the bearing block 20 about its vertical axis 64 and a rolling element 40 which , if necessary, is excluded from the linear conveyor system and functions as a switch element. The rolling elements are pivoted from the rectilinear position into the desired conveying direction, a lifting movement being forced on them during the rotary movement. In addition to the lifting means 72 , 76 shown in FIGS . 4 and 4a in the form of, for example, prism-like functional pairs, inclined planes as shown in FIG. 4b can also be used. The individual lifting and swiveling functions will be discussed below.

The bearing block 20 as shown in FIGS. 5 and 6 has a viewed in the plan view of the H-shaped attachment base 21, 21 'with bolt holes 22, 22' is traversed, 22 ", 22 '''vertically. On its transverse web 23 carries the Fastening base 21 , 21 'a vertically aligned bearing bush 24 in the form of a hollow cylinder, the end face 25 of which is shaped with four cross-shaped ribs 76 , the nature and function of which as a lifting means will be discussed in more detail below.

The fork 30 according to FIGS. 7-9 consists of a rotating plate 31 on the upper side 32 of which vertically upstanding bearing arms 33 , 33 'are arranged on two opposite edge sides. The rotary plate 31 is seated with its underside 34 on the top plate 35 of a bearing pin 36 which is in the bearing bore 27 of the bearing block 20 (see Fig. 5 and 6) was added. On its underside 11 , the head plate 35 has troughs 72 which are arranged in a cross shape and which, together with the ribs 76 of the bearing block 20 (FIGS . 5 and 6), form the lifting means.

The rotating plate 31 has four bores 37 , 37 ', 37 ", 37 "' arranged at the corner points of a projected square. An approximately V-shaped, two-armed lever 38 is attached to two bores 37 , 37 "'(see FIG. 15 and 16), in the apex 39 , in which the two arms 29 , 29 'are connected, an articulated bore 28 is arranged. Via this articulated bore 28 , the lever 38 with the adjusting means 9 (see FIG. 14) is in the form of a At the free ends of the arms 29 , 29 ', articulated bores 13 , 14 are provided, via which the lever can be fastened to the rotary plate 31. The square arrangement of the bores 37 , 37 ', 37 ", 37 ""in FIG Rotating plate 31 is deliberately chosen in order to create several similar articulation points for equally similar articulation levers. That is, depending on which actuator to be explained later, the module can be moved and reset by, for example, a single lever. Or the actuating movement is carried out via two separate levers, in which case such a second lever is then also attached to the opposite side of the rotary plate. If there is insufficient height or space for a lever movement in the conveying direction of the system, the lever can also be arranged laterally due to the square arrangement of the articulation points.

Between the bearing arms 33 , 33 'of the fork 30 , the rolling body 40 is rotatably received about its horizontal axis 65 .

As shown in FIGS. 10 to 13 in particular, the rolling body 40 consists of a rim 41 with a double rim bed 42 , 42 'and wheel tires 43 , 43 ' accommodated therein. The rim 41 is penetrated by a scar bore 44 through which the shaft 45 is passed and with its free ends is rotatably received in the bearing arms 33 , 33 'of the fork 30 or the rotating plate 31 (see FIGS. 7-9). Between the two rim beds 42 , 42 ', a pulley 46 is formed, in which a drive belt 47, which is in operative connection with a drive shaft 50 (FIGS . 2 to 4), is taken up.

FIGS. 17-19 illustrate a bracket 52 which is formed approximately U-shaped. Depending on the number of modules, the console 52 has in its horizontal web 15 an equal number of windows 65 , 66 , 67 , 68 , 69 through which the drive belt 47 ( FIGS. 2-4) of the modules 4-8 can rotate.

On the between the cheeks 51 , 51 '( Fig. 2 to 4) arranged transversely to the conveying direction of the main conveyor 1 console 52 five modules 4 to 8 are thus attached at a suitable distance from each other and connected to the actuating means 9 in the form of a coupling rod which for this purpose has five link plates 53 to 57 ( FIG. 14). The actuating means 9 is connected to the modules 4-8 via the lever 38 .

The apex of the wheel tires 43 forms a conveyor level in a neutral position with the other conveyor rollers of the system. If the conveying direction of the material to be conveyed 10 is to be changed, ie this is discharged from the linear main conveyor 1 onto the branching secondary conveyor 2 , the pneumatic cylinder 58 is activated, which exerts an actuating movement in one or the other direction on the actuating means 9 in the form of the coupling rod. This causes modules 4 to 8 to pivot in groups. In this case, slide either as shown in Fig. 4b, both inclined run tracks 26 and 12 of the bearing bush 24 of the bearing block 20 and the top plate 35 of the fork 30 on each other, or there are lifting means 72, 76 are used which, in Figs. 4, 4a 5 and 6, and 7, 8 and 9 are shown.

Here are the lifting means ribs 72 and troughs 76 on the bearing block 20 and the fork 30 . When the two parts rotate in relation to each other, the ribs rise out of their depressions and ride on the surface or the underside of the head plate. Here, the fork 30 and thus the rolling body 40 also perform a vertical movement in addition to its pivoting movement and move beyond the conveying plane of the other rollers of the main conveyor 1 . Due to the continuous rotation of the rolling bodies 40 , a conveying direction corresponding to the module position is forced on the conveyed goods.

Figs. 20 to 25 show a further advantageous embodiment of the invention. In this embodiment, four bores 91 , 92 , 93 , 94 arranged in a cross shape with respect to one another are incorporated in the rotary plate 31 of the fork 30 .

Appropriate lifting means 86 in the form of rivets are pressed into these bores, the heads of which protrude beyond the underside of the fork in the direction of the bearing block 20 .

In the end face 25 of the bearing bush 24 of the bearing block 20 are accordingly recessed the cruciform arrangement of the four rivets also cross-shaped recesses 82 into which the rivet heads slide accordingly according to their rotational position. With a rotary movement in one direction or the other, the rivet heads emerge from the troughs and ride on the outermost end face of the bearing bush, the lifting movement being carried out during the exit from the troughs.

Reference list

1

Main sponsor

2nd

Subsidiary

3rd

Switch

4th

module

5

module

6

module

7

module

8th

module

9

Adjusting means (coupling rod)

10th

Material to be conveyed

11

Bottom of

35

12th

Lifting device (inclined runway from

35

)

13

Joint bore in

38

14

Joint bore in

38

15

Steg v.

52

20th

Bearing block from

3rd

21

Mounting base from

20th

22

Screw holes from

20th

23

Cross bar from

20th

24th

Bearing bush from

20th

25th

Face of

24th

26

Lifting device (inclined runway from

24th

)

27

Bore from

24th

28

Articulated drilling from

38

29

Arms of

38

30th

Fork of

3rd

31

Turntable from

30th

32

Top of

31

33

Bearing arms on

31

34

Bottom of

31

35

Headstock of

36

36

Bearing bolt

37

Holes in

31

38

Lever of

30th

39

Crest of

38

40

Rolling element

41

Rim of

40

42

Rim bed from

41

43

Wheel tires from

40

44

Hub bore from

41

45

wave

46

Pulley

47

Drive belt

50

drive shaft

51

Cheeks of

1

52

console

53

Hinge strap

54

Hinge strap

55

Hinge strap

56

Hinge strap

57

Hinge strap

58

Pneumatic cylinder

59

Axis of rotation of

40

63

Channel between

38

and

31

64

Vertical axis from

30th

65

Channel in

15

66

Channel in

15

67

Channel in

15

68

Channel in

15

69

Channel in

15

72

Lifting means (rib on

24th

)

76

Lifting equipment (trough in

35

)

77

Lifting means (rivet, pin, calotte on

30th

)

78

Drilling in

30th

/

31

79

Drilling in

30th

/

3rd

l

80

Drilling in

30th

/

3rd

l

81

Drilling in

30th

/

3rd

l

Claims (22)

1.Diverter for a conveyor system, in particular for a roller conveyor, for deflecting conveyed goods in one level from a main conveyor to a secondary conveyor branching off from the main conveyor, the diverter consisting of a group of interacting, in particular individually driven modules, each of which supports the Have rolling bodies that form conveyed goods, and at least the rolling bodies of the modules can be pivoted together about a vertical axis via an adjusting means, characterized in that each module ( 4 , 5 , 6 , 7 , 8 ) consists of a bearing block ( 20 ) and one rotatable in the bearing block ( 20 ) received, articulated on the adjusting means ( 9 ) and opposite to the bearing block ( 20 ) during its pivoting movement performing a lifting movement ( 30 ) which carries the rolling body ( 40 ). 2. Switch according to claim 1, characterized in that between the bearing block ( 20 ) and the fork ( 30 ) lifting means ( 12 , 26 , 72 , 76 , 82 , 86 ) are formed. 3. Switch according to claim 2, characterized in that the lifting means ( 72 , 76 ) on the contact surfaces between the bearing block ( 20 ) and fork ( 30 ) arranged troughs and ribs. 4. Switch according to one of the preceding claims, characterized in that the lifting means ( 72 , 76 ) are designed in the form of prisms and prism beds. 5. Switch according to claim 2, characterized in that the lifting means ( 12 , 26 ) are each an oblique runway on the common bearing surfaces between the bearing block ( 20 ) and fork ( 30 ). 6. Switch according to at least one of the preceding claims, characterized in that the bearing block ( 20 ) has a, on a fastening supply base ( 21 , 21 ') vertically projecting bearing bush ( 24 ) in which a bearing bolt ( 36 ) of the fork ( 30 ) is accommodated coaxially and rotatably. 7. Switch according to at least one of the preceding claims, characterized in that the fork ( 30 ) has a rotary plate ( 31 ) on which vertically upstanding bearing arms ( 33 , 33 ') are arranged, between which the rolling body ( 40 ) is rotatably received and the rotating plate ( 31 ) rests on a head plate ( 35 ) of the vertically aligned bearing pin ( 36 ). 8. Switch according to at least one of the preceding claims, characterized in that the lifting means ( 12 , 26 ) forming inclined run-up surfaces between the bearing block ( 20 ) and the fork ( 30 ) on the front surface ( 25 ) close to the fork ( 30 ) Bearing bush ( 24 ) on the one hand and the bottom ( 11 ) of the head plate ( 35 ) or the rotary plate ( 31 ) of the fork ( 30 ) close to the bearing block ( 20 ) on the other hand are arranged. 9. Switch according to at least one of the preceding claims, characterized in that the troughs and ribs forming the lifting means ( 72 , 76 ) between the bearing block ( 20 ) and the fork ( 30 ) on the end face ( 25 ) close to the fork ( 30 ) the bearing bush ( 24 ) on the one hand and the underside ( 11 ) of the head plate ( 35 ) or the rotary plate ( 31 ) of the fork ( 30 ) close to the bearing block ( 20 ) on the other hand. 10. Switch according to at least one of the preceding claims, characterized in that the fork ( 30 ) of each module ( 4 , 5 , 6 , 7 , 8 ) is coupled to the adjusting means ( 9 ). 11. Switch according to claim 10, characterized in that the fork ( 30 ) has an approximately horizontally projecting lever ( 38 ) which is articulated to the adjusting means ( 9 ). 12. Switch according to claim 11, characterized in that the adjusting means ( 9 ) is a coupling rod. 13. Switch according to at least one of the preceding claims, characterized in that the rolling body ( 40 ) is a, around a horizontally between the arms ( 33 , 33 ') of the fork ( 30 ) extending axis ( 59 ) rotatable rim ( 41 ) , on which at least one wheel tire ( 43 , 43 ') forming the tread for the material to be conveyed is arranged. 14. Switch according to claim 12, characterized in that the rim ( 41 ) has two spaced apart rim beds ( 42 , 42 '), between which a pulley ( 46 ) is arranged. 15. Switch according to at least one of the preceding claims, characterized in that the modules ( 4 , 5 , 6 , 7 , 8 ) are spaced next to one another on a bracket ( 52 ) extending transversely to the conveying direction of the main conveyor ( 1 ). 16. Switch according to at least one of the preceding claims, characterized in that a drive shaft ( 50 ) extending parallel to the console ( 52 ) is arranged below the modules ( 4 , 5 , 6 , 7 , 8 ) and / or the console ( 52 ) is. 17. Switch according to at least one of the preceding claims, characterized in that an endless drive belt ( 62 ) is guided around the drive shaft ( 50 ) and over the pulley ( 46 ) of the rolling body ( 40 ) forming the upper run. 18. Switch according to at least one of the preceding claims, characterized in that between the rotary plate ( 31 ) of the fork ( 30 ) and the lever ( 38 ) articulated thereon a channel ( 63 ) suitable for passing the rotating drive belt ( 47 ) is formed. 19. Switch according to at least one of the preceding claims, characterized in that a switch field is formed by the modules ( 4 , 5 , 6 , 7 , 8 ). 20. Switch according to one of the preceding claims, characterized in that the lifting means ( 82 , 86 ) on the one hand in the form of troughs and on the other hand with these corresponding on the fork ( 30 ) or the bearing block ( 20 ) adaptable pins or domes are formed. 21. Switch according to claim 20, characterized in that the lifting means ( 82 , 86 ) over the underside of the fork ( 30 ) in the direction of the bearing block ( 20 ) are projecting rivet heads which have troughs on the end face ( 25 ) close to the fork ( 30 ) ) of the bearing bush ( 24 ) of the bearing block ( 20 ) correspond. 22. Switch according to one of the preceding claims, characterized in that the mutually corresponding lifting means ( 72 , 76 , 82 , 86 ) are cross-shaped with each other.