DE10106191A1 - Transporter for work pieces etc. on palettes etc. has parallel longitudinal track sections each with lifting device to ease work piece transfer - Google Patents

Abstract

The transporter has mainly parallel longitudinal sections (32), and one or more cross sections between them. Each section has a support device for the palettes, and drive belt (27) with motor (22). Each longitudinal section has a lifting device (2,2'). The support device consists of support rollers (11,11''), located behind each other, forming inner or outer roller tracks (14a,a') for the drive belt. Roller track and drive belt of the cross track extend across those of the longitudinal sections.

Description

The invention relates to a transport device for work pieces or the like that are on plates, pallets or rah meniform workpiece carriers are stored, according to the Oberbe handle of claim 1.

In known flexible transport and assembly systems are several trans arranged in a plane parallel to each other port or assembly lanes arranged at right angles to these Neten cross conveyor connected. According to the state of the Technology is known by means of so-called pushers Workpiece carrier from a transport path on the right to push angled cross conveyor. Such one Pushers consist of Hy arranged to the side of the tracks draulic or pneumatic devices, their horizontal out Ram pushing the workpiece or the carrier from the trans Push the port track onto the cross conveyor.

Another type of transfer device is known from DE 30 12 355 A1 for trans portbands become known. In this device for order of workpiece carriers, workpieces or the like in the space between the belts of a double belt belt system a transfer device with at least one at right angles to Double webbing conveyor belt arranged. This um setting device can be at crossroads from across to each other running conveyor systems are used and enabled a smooth transition of the workpiece carrier from one Conveyor belt to the other. The device can also be used Moving workpiece carriers with parallel to one another use conveyor belts, however, the  Conveyor belts or conveyor tracks directly next to each other be put.

A conveyor device is known from DE 36 01 699 A1, where the cross conveyor also functions as a converter takes over, with an implementation of both one and is possible from the other longitudinal transport track. To this The purpose is the cross conveyor that crosses the longitudinal conveyor, lifting and lifting on one or both sides with the aid of a lifting device lowered. In such a conveyor is during Implementation process, however, the transport in both parallel Longitudinal transport tracks blocked. Furthermore, the implementation must the entire cross conveyor including the workpiece and the Workpiece carrier are raised so that high Operating forces are necessary.

The invention is therefore based on the object of a trans to introduce port device, also during the transfer process from a longitudinal route to a parallel adjacent beard longitudinal route the transport no longer on both longitudinal stretch is disabled. Furthermore, he should inventive transport device be designed so that only small forces are required during the transfer process.

This task is accomplished by a transport device for the factory pieces or the like with the characteristics of the characteristic Part of claim 1 solved according to the invention.

Advantageous embodiments and developments of the invention are specified in the subclaims.

The essential idea of the invention is that lifting devices for lowering the respective longitudinal section sections are provided in the longitudinal section sections in which the transverse section crosses the longitudinal section. A workpiece carrier transported on a longitudinal section is transferred to the transverse section in the following way:
First, the workpiece carrier is transported on the longitudinal route to the corresponding transfer position to the transverse route. In a second step, the longitudinal section is lowered using the lifting device. As a result, the workpiece carrier is placed on the corresponding support device of the cross section and transported away with the aid of the drive device assigned to the cross section. Finally, the longitudinal section is raised again with the aid of the lifting device, and transport over this longitudinal section is again possible without hindrance.

Now there are only slight actuation forces when transferring necessary because the workpiece and the workpiece carrier are always on remain at the same height level. The operating forces are limited to the forces to lower and then eating retraction of the longitudinal section in the off gang situation.

It also shows that the transport on the parallel arranged second longitudinal route during the transfer of the Workpiece carrier from the first longitudinal section (on the longitudinal route section) is not hindered on the transverse route. Only when the transfer from the cross section to the correspond the longitudinal section of the parallel second Long distance takes place, the transport is hindered here. On this way it is possible to change the total transport speed significantly increase, especially then, the further parallel longitudinal stretches of one another connected by transverse stretches others are distant.

In a first variant, the support device is made of one Large number of support rollers arranged one behind the other, one Forming (or external) roller conveyor, built up. The An drive device is preferably a at a distance from Roller conveyor arranged, for example guided over rollers, outer (or inner) webbing in itself known type. Support device and drive device preferably for both the longitudinal routes and for the cross sections are carried out in largely identical form.  

The roller conveyor and the webbing of the cross section now cross in each case the inner roller conveyors or webbing of the Longitudinal sections. Furthermore, the free spaces between the roller conveyors and the outside webbing sen lying roller tracks of the longitudinal sections bridged. This results in an inexpensive, over Visible, reliable and flexible structure of the Transport device. The cross section can be any stands between two parallel longitudinal lines (transport railways) bridge.

It has been shown that the respective external webbing straps each an external role lenbahn is to be assigned. In this way it is located accordingly the webbing between two a support device of the trans roller conveyor forming port device. To transport one Workpiece carrier enters this webbing in frictional con clocks with the central area of the workpiece carrier. To this Way, no or only a very small torque is applied to the Workpiece carrier exerted so that tilting or ver rotation of the workpiece carrier is largely excluded. The workpiece carrier is advantageously designed such that that it encloses the support rollers of the roller conveyor like a rail or from the outside or from the inside, so that here, too, the workpiece carrier is prevented from rotating becomes. It is particularly favorable if the workpiece carrier Such a shoot in both the longitudinal and transverse directions has guide, so that with a transfer from the longitudinal stretch on the cross section is impossible to tilt.

A particularly advantageous variant of the invention results itself when the drive device has a plurality of the same type ger, designed as modules drive units. A such modular design consisting largely of iden individual modules allows a flexible structure of a such transport device. Such modules of the same type can be assigned to any track section, so that a longitudinal section from a larger number of each other drive units in line. Preferably, the  Above mentioned longitudinal stretch associated with a lifting device ken section just the length of a drive unit. In in the same way, a cross section can also consist of several who are arranged one behind the other the.

It is possible that the from a larger number of An drive units existing drive device of a longitudinal or cross section with the help of a single motor drive is drivable. In this case it is necessary that the one individual drive units on corresponding coupling elements point so that the caused by the motor drive Transport movement from one drive unit to the next is transmitted.

However, an advantageous embodiment of the invention provides that each drive unit has its own drive motor has. A transport device, which with any Number of such drive units can be built up Realize very quickly, without major constructive Measures are necessary. Even a high-performance Neudi dimensioning of the drive motor depending on the The size of the transport device is eliminated. It also follows advantageous if each drive unit has its own type drive motor shows that individual sections of the track are drivable from each other. This opens the Possibility of a transport operation even on a longitudinal route maintain when handing over the workpiece carrier from a longitudinal section lying on this longitudinal section cut on a cross section.

A fifth variant provides that the stroke direction at least one horizontal side member with a Has roller plane on which a carriage essentially is guided horizontally. This sled points turn itself a deflection device, which is featured see is a substantially horizontal shifting movement of the carriage in a substantially vertical stroke implement. Such deflection devices have the advantage  that the load from the workpiece carrier and that on it workpiece not constantly on the for generation necessary force generator rests during the lifting movement. Such Deflection device also has the advantage that with whose help enables a reduction, which the force to be applied by the force generator is reduced.

In an advantageous embodiment of this variant, it is provided according to the invention that the carriage essentially one Lichen horizontally slidable carrier has at least one rod or the like on one end is steered and ver a second substantially vertically slidably guided beam on which the at least one rod or the like is articulated on the other side. With the help of This special embodiment of the fifth variant principle is a technically easy to implement Siering embodiment presented.

According to the invention it is also prescribed that the essentially horizontally displaceable carrier a or more roles are assigned, which is a friction ensure poor mobility of the carrier. These roles can be part of the essentially horizontal slidably guided carrier or stock part of the roller plane on which the beam moves horizontally is led. In an analogous manner it is provided that the essentially vertically displaceable carrier a or more roles are assigned, which in the previous be wrote a low-friction displacement of the Ensure wearer.

In a particularly advantageous embodiment of the invention it is envisaged that the roll plane is part of a U-profile is in which the carriage can be moved horizontally linearly is led. With the help of such a U-profile in a simple way ensure that a lateral out the carriage does not occur.  

Furthermore, it is provided that the substantially vertical slidably guided carrier is U-shaped and laterally engages in the profile described above. This in turn ensures that this too Carrier cannot dodge sideways.

The lowering (and lifting) of the vertically movable guided carrier and thus the longitudinal section he follows that the carriage has at least one pneumati no device or a hydraulic device is assigned. It has proven to be advantageous if two vertical carriers are used, in each of which a slide ge leads is. The two sledges are expediently through an operating rod or the like connected, and this Actuating rod is again with the tires just mentioned matics or hydraulic devices connected.

From the illustrated in the schematic drawing exemplary embodiments of the invention, advantageous from designs and designs of the invention and special Advantages of the inventions explained and described in more detail the.

Show it:

Fig. 1 shows a detail of a trans port device according to the invention in a perspective view - double-T transport unit

Fig. 2 shows a section of the transport device according to Fig. 1 - T transport unit

Fig. 3 shows a lifting device according to the invention in a perspective view

Fig. 4, the inventive lifting unit according to FIG 3 - bottom view. Section plane B-B'-B -

FIG. 5 shows the lifting unit of Figure 3 - top view. Section plane A-A'-A -

Fig. 6, the lifting unit according to FIG 3 - side view. Cutting plane AB-A'-B '

Fig. 7 shows a further embodiment of a lifting device OF INVENTION to the invention according to the Figure 3 - top view. Section plane A-A'-A '' -

Fig. 8 carriage according to Fig. 4, 5 or 7 - perspective view

Fig. 9 carriage with lifting element according to Fig. 8 - perspective view

FIG. 10 slide with lifting element according to FIG. 9 - sectional illustration; FIG. Section plane C-C'-D'-D

Fig. 11 carriage according to Fig. 10 - sectional view; Cutting plane E-E '

12 shows an inventive transport device having a plurality of longitudinal stretching and transverse stretching several -. Exploded perspective view -

Fig. 13, the transport device according to Fig. 9 - perspective view.

Fig. 1 shows a section of a he inventive transport device 1 in a perspective view. In the example, the transport device 1 is based on two parallel longitudinal lines, which are indicated in the drawing with the aid of the reference numerals 30 and 30 '. Furthermore, the transport device 1 has a transverse route, which connects the longitudinal routes 30 and 30 'to cross them ver. The transverse route is identified with the aid of reference numeral 40 .

Of the longitudinal stretches indicated by the reference numerals 30 and 30 ', FIG. 1 shows only the longitudinal stretches 32 and 32 ' which are essential for the invention and which are connected to one another by the transverse strut 40 . The longitudinal stretches 30 and 30 'and thus the longitudinal stretches 32 , 32 ', as well as the transverse stretches 40, each have a support device on which the workpiece carriers are slid translationally. The support device in the example consists of two parallel roller conveyors 14 and 14 b, 14 a 'and 14 b' as well as 14 a '' and 14 b '' which are constructed from a plurality of support rollers 11 , 11 ', 11 ''arranged one behind the other ,

Furthermore, both the longitudinal section sections 32 and 32 'and the illustrated transverse section 40 have a Antriebseinrich device which can be driven by a drive motor all around and can be spent in frictional contact with a workpiece carrier. The drive device consists of a belt band 27 , 27 ', 27 ''which is arranged between the respective outer and inner roller conveyors 14 a and 14 b, 14 a' and 14 b ', 14 a''and 14 b''and is guided over rollers. In the example, the drive device is designed as a plurality of separate drive units 20 and 20 'and 20 ''assigned to the respective longitudinal section sections 32 and 32 ' and the transverse section 40 . Such a drive unit 20 , 20 ', 20 ''each comprises a drive motor 22 , 22 ', 22 '' and a led belt strap 27 , 27 ', 27 ''.

The respective roller conveyors 14 a ″ and 14 b ″ and the webbing 27 ″ of the transverse section 40 now cross the respective inner roller conveyors 14 a and 14 a ′ of the longitudinal section sections 32 and 32 ′. The length of the roller conveyors 14 a 'and 14 b' and of the webbing 27 '' of the transverse section 40 guided over rollers is selected such that they have the respective clearances 33 and 33 'between the inner roller conveyors 14 a, 14 a' and the outer belt webbing 27 , 27 'of the Längenlinienab sections 32 and 32 ' bridged. The intersections between the transverse section 40 and the respective longitudinal section sections 32 and 32 'are designed such that the inner roller tracks 14 a and 14 a' of the respective longitudinal section sections 32 and 32 'have recesses 34 , 34 ' through which the out and inner roller conveyors 14 a '' and 14 b '' of the cross section 40 and the belt webbing of the cross section are carried out by hand.

A respective lifting device for lowering or raising the respective longitudinal section 32 and 32 'is assigned to the respective longitudinal sections 32 and 32 '. The lifting devices are identified in FIG. 2 by the reference numerals 2 and 2 '. The direction of movement for lowering or lifting the respective longitudinal section sections 32 and 32 'is highlighted with the aid of a double arrow identified by the reference number 3 .

With the help of the roller conveyors 14 a and 14 b, 14 a 'and 14 b' and the drive units 20 , 20 'of the respective longitudinal section sections 32 and 32 ' carrying lifting units, it is possible to workpieces or their carriers which these section sections 32 and 32 'pass to the cross section 40 to pass. In the example, the transfer takes place in that the workpiece or the workpiece carrier is transported to the middle of the longitudinal section 32 (or 32 '). Then the webbing 27 , 27 'of the longitudinal section 32 or 32 ' is stopped and the lifting unit 2 or 2 'is lowered. In this way, the workpiece carrier is placed on the roller conveyors 14 a ″ and 14 b ″ and the webbing 27 ″ of the transverse section 40 . The workpiece carrier is then transported on the transverse section 40 . If the workpiece carrier has left the longitudinal section 32 or 32 'and thus the supporting device and drive device, it can be raised again with the aid of the lifting unit 2 or 2 ' and the longitudinal conveying can be started again. The transfer of the workpiece carrier from the transverse section 40 to the longitudinal section 32 'or 32 ''is carried out in an analogous manner by first lowering the longitudinal section 32 ', the workpiece carrier is transported to the longitudinal section 32 'on the transverse section 40 , the longitudinal section 32 'is raised again, so that in this way the workpiece carrier is taken over by the longitudinal section 32 '.

To demonstrate that such a transport device can be implemented in a simple manner by the drive device having a plurality of similar drive units 20 , 20 'and 20 ''formed as modules, FIG. 2 shows a section of the perspective view of the transport device according to FIG Fig. 1.

At the respective ends of the system shown in FIG. 2 as a T-shaped transport unit 10 , longitudinal sections 30 , 30 ', transverse sections 40 , and longitudinal section sections 32 , 32 ' with corresponding lifting devices 2 , 2 'can be connected in an arbitrary manner. The modular structure of the drive device from a variety of self-sufficient drive units 20 , 20 ', 20 ''enables the construction of a Transportvorrich device of almost any size. In addition, conversion measures or add-on measures can be carried out in the shortest possible time.

Another example of a transport device consisting of a larger number of modular cross sections 40 and longitudinal sections 30 with autonomous drive units 20 are shown in the corresponding FIGS . 12 and 13. FIG. 12 shows the transport device shown as a unit in FIG. 13 in perspective exploded view. The transport device shown in the example consists of 10 double T-T transport units 1 a, 1 b, 1 c, 1 d, 1 e, 1 f, 1 g, 1 h, 1 i, 1 j as shown in FIG. 1 are shown in detail as well as eight double longitudinal sections 31 a, 31 b, 31 c, 31 d, 31 e, 31 f, 31 g, 31 h.

Examples are the cut from the respective Längenlinienab 31 a. , , 31 h and 32 a. , , 32 t formed longitudinal lines characterized by the reference numerals 30 a, 30 b, 30 c and 30 d, the transverse routes connecting these longitudinal routes with the help of reference numerals 40 a. , , 40 y.

FIGS. 3 through 11 show how inventive lifting Rich obligations 2, 2 'and 62 are realized by way of example. FIG. 3 shows an inventive lifting device in perspektivis cher representation. FIGS. 4 to 6 show a first off guide for the lifting device, which is two for generating the lifting movement pneumatic means 5 a and 5 b be used, Fig. 7 shows a variant, which is based on the generation of the stroke on a single pneumatic device 65.

FIG. 3 shows the lifting device 2 according to the invention with the components already known from the description of the drawings relating to FIGS. 1, 2, 12 and 13.

In particular, from FIG. 3 shows that such a lifting device 2 according to the invention device consists of the actual hub 2 ** and this lifting unit 2 ** supporting carrier 2 consists *. The lifting unit 2 ** itself consists in turn of the frame 9 , the facial expressions for lifting and lowering the outer and inner roller tracks 14 a and 14 b seated on the sem frame, and the drive unit 20 consisting of the drive motor 22 and the webbing 27 . From Fig. 3 also shows that not the entire longitudinal section 32 is raised or lowered (the stroke direction 3 is indicated by a double arrow), but that it is only provided according to the invention, the outer roller track 14 b of the longitudinal section 32 and the middle section 14 a * enclosed by the (not shown here) outer and inner roller conveyor of the transverse route to perform lowerable. In the example, this central section 14 a * is rigidly connected to the outer roller conveyor 14 b of the longitudinal section section 32 by means of two spacers 4 *.

According to the first embodiment according to FIGS. 4 to 6, the lifting device 2 is based on a frame 9 , which is composed of two preferably horizontally arranged horizontal longitudinal beams 13 a and 13 b and two horizontal cross beams 15 a and 15 b connecting them. The length of the horizontal talquer beam 15 a and 15 b corresponds essentially to the status of the roller conveyors 14 a and 14 b.

The two horizontal side members 13 a and 13 b have a substantially U-shaped profile 13 a '. Between the two legs of the U-shaped profile 13 a 'of the horizontal longitudinal beam 13 a and 13 b, a slide 7 a and 7 b is guided hori zontally. Both slides 7 a and 7 b have rollers 8 a, 8 b, which roll in the U-shaped profile 13 a 'of the respective horizontal side member 13 a and 13 b and ensure smooth horizontal displacement of the slides 7 a and 7 b. Both carriages 7 a and 7 b are connected to one another in the center with the aid of a horizontally running actuating rod 4, the actuating rod 4 being passed through rectangular recesses 16 a in the inner legs of the U-shaped horizontal longitudinal members 13 a and 13 b.

The two carriages 7 a, 7 b are movable with the aid of the actuating rod within the U-shaped horizontal longitudinal members 13 a and 13 b in the horizontal direction. These slides 7 a and 7 b carry the actual lifting facial expression, which in turn carries the support device 14 a and 14 b and the drive device 20 of the corresponding longitudinal section sections 32 . The ent speaking fixation of the support device and the Antriebsein device 20 , consisting of drive motor 22 and webbing 27 is not shown in the example. The actual lifting facial expression for generating the lifting movement 3 cannot be seen from these FIGS. 6 and 7. This lifting facial expression can be found in FIGS . 10 and 11 described below.

The actuating rod 4 is connected to two pneumatic devices 5 a and 5 b arranged at the same distance from the center thereof and arranged in the horizontal direction. The pneumatic cylinders of the pneumatic devices 5 a and 5 b are fastened to the actuating rod 4 and the horizontal support 15 b with the aid of fastening devices 17 and 18 ( not described in more detail). The two pneumatic cylinders 5 a and 5 b are connected by a compensating valve 6 , which ensures a uniform pressurization of both cylinders of the Pneumatikein devices 5 a and 5 b.

FIG. 7 illustrates a lifting unit 62 based on of one single pneumatic device 65.

Like the lifting unit 2 described in detail in the previous exemplary embodiment, the lifting unit 62 is also based on a frame 69 which is constructed from two horizontal longitudinal members 63 a and 63 b and two horizontal transverse members 65 a and 65 b. The length of the horizontal cross member 65 a and 65 b corresponds essentially to the distance between the roller tracks 14 a and 14 b as in the previous embodiment.

The two horizontal side members 63 a and 63 b have an essentially U-shaped profile. Between the two legs of the U-shaped profile of the horizontal longitudinal beams 63 a and 63 b, a slide 67 a and 67 b is guided horizontally displaceably in the manner described above. Both carriages 67 a and 67 b have rollers 68 a, 68 b, which are in engagement with the U-shaped profile of the respective horizontal longitudinal member 63 a and 63 b. Both carriages 67 a and 67 b are connected to one another in the center with the aid of a horizontally running actuating rod 64 , the actuating rod 64 being passed through rectangular recesses in the inner legs of the U-shaped horizontal longitudinal members 63 a and 63 b.

The two carriages 67 a, 67 b are displaceable with the aid of the actuating rod 64 within the U-shaped horizontal longitudinal members 63 a and 63 b in the horizontal direction. These slides 67 a and 67 b carry de lifting facial expressions, the support device and the drive device of the corresponding longitudinal sections.

The actuation rod 64 is displaced with the aid of a pneumatic device 65 arranged in the middle of the actuation rod 64 and arranged in the horizontal direction. The attachment of the pneumatic cylinder of the Pneumatikeinrich device 65 is realized in a manner analogous to that described above.

The manner in which the lifting mechanism according to the invention is implemented is now explained below:
The idea of the invention is that the substantially horizontally displaceably guided carriage 7 a, 7 b or 67 , 67 b has a deflection device which the essentially horizontal displacement movement 3 * of the carriage 7 a, 7 b or 67 a, 67 b are converted into an essentially vertical lifting movement. In the exemplary embodiment, the cross leg of the U-shaped horizontal longitudinal member 13 a ( 13 b, 63 a, 63 b) is designed as a rolling plane 80 , on which the carriage 7 a ( 7 b, 67 a, 67 b) is displaceably guided. The carriage 7 a ( 7 b, 67 a, 67 b) itself is based on the carrier 81 , on which two rods 84 a and 84 b are articulated on one side in the example. On the other side of these two rods 84 a and 84 b, a second support 82 is articulated. The first carrier 81 has four rollers 8 a, 8 b, which ensures horizontal displacement of the carrier 81 on the roller plane 80 .

The second carrier 82 is guided in the example with the help of two vertical guides 87 a and 87 b displaceable in the vertical direction. To ensure a low-friction verti cal displacement, the two vertical guides 87 a and 87 b rollers 86 a and 86 b, over which the carrier 82 is guided vertically displaceably.

The articulation of the supports 81 and 82 on the rods 84 and 84 b is carried out in a manner known per se by means of spherical bearings 85 a, 85 b, 85 c, 85 d attached to the ends of the rods 84 a and 84 b and penetrating them on the brackets 81 and 82 fixed journal 83 a, 83 b, 83 c and 83 d.

The carrier 82 is also in the example U-shaped forms and engages in the U-profile 13 a 'of the horizontal longitudinal beam 13 a (or 13 b).

The conversion of a horizontal movement 3 * into a stroke movement 3 can be seen in particular from FIG. 10 and results as follows:
Assuming that the carrier 81 is moved with the aid of the actuating rod 4 in the horizontal direction (horizontal direction of movement 3 *, indicated by a path), this leads to the two rods 84 a and 84 b being due to this Carry out a compensatory movement. With respect to the axis of the journals 83 b and 83 d, the rods 84 a and 84 b make a clockwise rotation 3 **. Marked by an arrow. This leads to the fact that the carrier 2 on the basis of its only vertical displaceability is a stroke movement 3 upward. Arrow executes. This upward movement continues until the two rods are aligned in a vertical direction. A displacement of the carrier 81 beyond this position means that the carrier 82 is moved down again.

LIST OF REFERENCE NUMBERS

1

.

1

.

1

a. , ,

1

j Double-T transport unit

2

.

2

'' Lifting device

2

* Porters

2

** lifting unit

3

Hubbewegungsrichtung

3

* Horizontal direction of movement

3

** Direction of rotation

4

actuating rod

4

* Spacers

5

a,

5

b Pneumatic / hydraulic device

6

Valve

7

a,

7

b sledge

8th

role

9

frame

10

T-transport unit

11

.

11

'

11

'' Support rollers

12

Workpiece carrier

13

a,

13

b Horizontal side members

13

a 'Horizontal longitudinal member (U-profile)

14

a,

14

a,

14

a 'outer roller conveyor

14

b

14

b '

14

b '' inner roller conveyor

14

a * middle section

15

a,

15

b Horizontal cross member

16

a,

16

b recess

17

fastening device

18

fastening device

20

.

20

'

20

'' Drive unit

22

.

22

'

22

'' Drive motor

27

.

27

'

27

'' Webbing

30

.

30

'' Long distance

30

a,

30

b

30

c,

30

d longitudinal route

31

.

31

'' Double longitudinal section

31

a. , ,

31

h Double longitudinal section

32

.

32

'Longitudinal section

32

a. , ,

32

t longitudinal section

33

.

33

' Free space

34

recess

40

cross track

40

a. , ,

40

j Cross section

50

Transport device for workpiece carriers

62

lifting unit

63

a,

63

b Horizontal side members

64

actuating rod

65

Pneumatic / hydraulic device

65

a Horizontal cross member

67

a,

67

b sledge

68

a,

68

b role

69

frame

80

rolling plane

81

carrier

82

carrier

83

a,

83

b

83

c,

83

d cones

84

a,

84

b rod

85

a,

85

b

85

c,

85

d spherical bearings

86

a,

86

b role

87

a,

87

b Vertical guidance

Claims (13)

1. Transport device for workpieces or the like, which are placed on plate, pallet or frame-shaped workpiece carriers ( 12 )
with essentially parallel longitudinal sections ( 30 ', 30 a, 30 b, 30 c, 30 d) and at least one transverse section ( 40 ', 40 a, 40 b, 40 c, 40 d, 40 e, 40 f, 40 g, 40 h, 40 i, 40 j), which is arranged between two longitudinal sections ( 30 ', 30 a, 40 b, 30 c, 30 d), wherein
the longitudinal sections ( 30 ', 30 a, 30 b, 30 c, 30 d) and the transverse sections ( 40 ', 40 a, 40 b, 40 c, 40 d, 40 e, 40 f, 40 g, 40 h, 40 i, 40 j) each have a support device ( 11 , 11 ', 11 '', 14 a, 14 b, 14 a', 14 b ', 14 a'', 14 b'') on which the workpiece carriers ( 12 ) are translationally displaceable and a drive device ( 20 , 20 ', 20 '', 22 , 22 ', 22 '', 27 , 27 ', 27 '') which is driven by a drive motor ( 22 , 22 ', 22 '' ) can be driven all around and is brought into frictional contact with the workpiece carriers ( 12 ), the support device ( 11 , 11 ', 11 '', 14 a, 14 b, 14 a', 14 b ', 14 a'', 14 b '') of the transverse section ( 40 , 40 a, 40 b, 40 c, 40 d, 40 e, 40 f, 40 g, 40 h, 40 i, 40 j) the support device ( 11 , 11 ', 11 '', 14 a, 14 , 14 a ', 14 b', 14 a '', 14 b '') of a respective longitudinal section ( 32 , 32 ') of the respective longitudinal sections ( 30 , 30 ', 30 a, 30 b, 30 c , 30 d) partially crosses, characterized in that the respective Each longitudinal section ( 32 , 32 ') is assigned a lifting device ( 2 , 2 ', 62 ) for lowering the respective longitudinal section ( 32 , 32 '). 2. Transport device according to claim 1, characterized in that
the support device consists of a plurality of support rollers ( 11 , 11 ', 11 '') arranged one behind the other an internal or an external roller conveyor ( 14 a, 14 a', 14 a '') a drive device at a distance from the roller conveyor ( 14 a, 14 a ') , 14 a '') is an external or internal webbing ( 27 , 27 ', 27 '') arranged over rollers and
the roller conveyor ( 14 a '') and the webbing ( 27 '') of the transverse section ( 40 ) crosses the inside or outside roller conveyor ( 14 a, 14 a ') of the longitudinal section sections ( 32 , 32 ') and the free space ( 33 , 33 ') between the roller conveyors ( 14 a, 14 a', 14 a '', 14 b ', 14 b'') and the inside or outside belt straps ( 27 , 27 ', 27 '') of the longitudinal section sections ( 32 , 32 ') bridged. 3. Transport device according to claim 2, characterized in that the respective external or internal belt straps ( 27 , 27 ', 27 '') are each assigned an external or an internal roller conveyor ( 14 b, 14 b', 14 b '') , 4. Transport device according to one of claims 1 to 3, characterized in that the drive device has a plurality of similar drive units ( 20 , 20 ', 20 '') formed as modules. 5. Transport device according to claim 4, characterized in that each drive unit ( 20 , 20 ', 20 '') has a drive motor ( 22 , 22 ', 22 ''). 6. Transport device according to one of the preceding claims, characterized in that the lifting device ( 2 , 2 ', 62 ) has at least one horizontal longitudinal member ( 13 a, 13 b) with a roller plane ( 80 ) on which a carriage ( 7 a , 7 b, 67 a, 67 b) is guided in a substantially horizontally displaceable manner, which has a deflection device ( 81 , 82 , 83 a, 83 b, 83 c, 83 d, 84 a, 84 b, 85 a, 85 b, 85 c, 85 d, 86 a, 86 b, 87 a, 87 b) for transforming a substantially horizontal displacement movement ( 3 *) in a substantially vertical stroke movement ( 3 ). 7. Transport device according to claim 6, characterized in that the carriage ( 7 a, 7 b, 67 a, 67 b) has a substantially horizontally displaceably guided carrier ( 81 ) on which at least one rod ( 84 a, 84 b ) or the like is articulated on one end and a second substantially vertically displaceably guided carrier ( 82 ) on which at least one rod ( 84 a, 84 b) or the like is articulated on the end side. 8. Transport device according to claim 7, characterized in that the substantially horizontally displaceably guided carrier ( 81 ) is assigned one or more rollers ( 8 a, 8 b, 68 a, 68 b) for low-friction displacement availability of the carrier ( 81 ) , 9. Transport device according to claim 7 or claim 8, characterized in that the essentially vertically displaceably guided carrier ( 82 ) are assigned one or more rollers ( 85 a, 86 b) for low-friction displaceability of the carrier ( 82 ). 10. Transport device according to one of claims 6 to 9, characterized in that the rolling plane ( 80 ) is part of a U-profile ( 13 a '), in which the carriage ( 7 a, 7 b, 67 a, 67 b) horizontally linearly guided. 11. Transport device according to claim 10, characterized in that the carrier ( 82 ) is U-shaped and engages laterally in the U-profile ( 13 a '). 12. Transport device according to one of claims 6 to 11, characterized in that the Schlit ten ( 7 a, 7 b; 67 a, 67 b) at least one pneumatic device ( 5 a, 5 b; 65 ) or a hydraulic device or an electromotive Drive device for substantially horizontal displacement ( 3 *) of the carriage ( 7 , 7 b; 67 a, 67 b) is assigned. 13. Transport device according to one of claims 6 to 12, characterized in that
two horizontal side members ( 13 a, 13 b; 63 a, 63 b) are provided, in each of which a slide ( 7 a, 7 b; 67 ba, 67 b) leads,
the two carriages ( 7 , 7 b; 67 a, 67 b) are connected to one another by an actuating rod ( 4 , 64 ),
the actuating rod ( 4 , 64 ) is connected to the at least one pneumatic device ( 5 a, 5 b; 65 ) or the at least one hydraulic device or the electromotive drive device.