BR112020004481A2 - transport device and method of transport with such transport device - Google Patents

Abstract

The invention relates to a transport device for transporting parts of goods in a transport direction, which comprises at least one transport element, which forms a closed circuit and is driven in a circulating manner. The essential aspect, according to the transport device, is that a transport route section directly adjacent to at least one drive assembly in the direction of circulation of the transport chain has at least one transition section and an indentation section, the at least one drive assembly being designed to slide the chain links relative to each other in the transition section and to at least partially drive the chain links already slid in the recoil section.

Description

“TRANSPORT DEVICE AND METHOD OF TRANSPORT WITH SUCH TRANSPORT DEVICE”

[0001] The invention relates to a transport device for transporting parts of goods according to the preamble of claim 1. The present invention also relates to a method of transport having such a transport device according to the preamble to claim 16.

[0002] "Parts of goods" in the sense of the present invention are, in particular, "containers" produced from cans, bottles, tubes, bags made of metal, glass and / or plastic, as well as other suitable packaging means to fill with powder, or granular, liquid or viscous products. However, within the scope of the present invention, "pieces of goods" can also be formed by "group packages" such as packages, boxes, trays, wrappings or film packages that each comprise at least two containers and at least one (external) packaging element.

[0003] It is known to transport parts of goods using transport devices and / or conveyors that comprise a plurality of transport elements that each form a closed circuit, in particular, also in the form of transport chains or flat top chains, which are driven in a circulating manner. With their upper length supported by at least one guide, the transport elements each form the horizontal or essentially horizontal common transport plane or transport surface in which the pieces of goods remain with their base of good to the part or vertical base .

[0004] It is also known, in this context, that the transport elements cannot be configured just to any desired length, because if the friction forces that occur between the respective transport chain and the guide would be too long, they would exceed the resistance maximum traction of the transport elements, especially during the continuous operation of the transport device. For this reason, and with conveyors of greater length, in particular, it is normal to provide a plurality of transport devices that are axially adjacent to each other in the direction of transport, as this provides improved control and / or regulation of the speed of transport. exit and / or transportation of the transport elements, for example, using a separate drive for each conveyor belt or for a group of conveyor belts.

[0005] A generic transport device for transporting parts of goods in a transport direction, which has at least one transport chain that forms a closed circuit and is circulated, is known from Patent Document No. DE 10 2015 113 435 A1 previous to the applicant, in which a closed circuit is guided over a deflection device that is front with respect to the transport direction and over a deflection device that is rear with respect to the transport direction; between the front and rear deflection devices the transport device defines a transport route for the goods parts by means of at least one transport chain, with at least one drive assembly interactively coupled along the transport route, with the at least one conveyor chain to drive at least one conveyor chain between the deflection devices, the at least one conveyor chain comprising a plurality of chain links which are pivotally and movably arranged with respect to each other , so that a relative displacement of the individual chain links with respect to each other can change the overall length of the respective transport chain, and in which the transport route comprises at least two transport route sections, each of which extends between a deflection device and at least one drive assembly and / or between two ac assemblies ionization that followed each other in the direction of transport.

[0006] If, along the transport route, there is a setback of the chain links, that is, the transport chain in a section of the transport route, which results in an accumulation of the pieces of goods present in that section of the transport route. transport, then, this indented transport route section has a relative transport speed of zero compared to the transport route that is behind in the transport direction, in particular, with the other chain connections that still accumulate. In other words, the pieces of goods in that section of the indented transport route remain stationary for a certain time period of the accumulation and are not carried forward in the direction of transport. If the other chain links that are behind the chain links receding in the transport direction are pushed into those chain links that are already recessed, then this can cause an abrupt elastic impact on the already recessed transport route section.

[0007] Based on this, it is the objective of the present invention to provide a transport device for transporting parts of goods that avoids the disadvantages mentioned above and, in particular, does not cause an elastic impact on the already backed current connections. This goal is resolved with the claim resources

1. The dependent claims refer to the particularly preferred embodiments of the invention.

[0008] The essential aspect, according to the transport device, is that a transport route section directly adjacent to at least one drive assembly in the direction of circulation of the transport chain has at least one transition section and one section recoil, the at least one drive assembly being configured to displace the current connections with respect to each other in the transition section and at least partially drive the current connections already displaced in the recoil section. The inventive transport device therefore has the decisive advantage that the at least one drive assembly triggers not only, for example, a recoil or compression of the chain links, but also a forward transport in the direction of transport. Due to the forward transport in the direction of transport, preventing the current connections already recessed or compressed from coming to a standstill, even if there is an accumulation of other current connections that follow behind in the direction of transport, there is no elastic impact on the current connections they are already recessed as they are now, in contrast to the state of the art, carried forward in the direction of transport.

[0009] According to a preferred embodiment, provision can be made for at least one drive assembly to form an entry section for a transport route section provided as an indentation region in which parts of goods transported along the transport route may retreat.

[0010] According to another preferred modality, provision can be made for at least one drive assembly to be provided in the transition region of a transport route section configured as an indentation region.

[0011] According to yet another modality, an indentation section can be formed by an external path that forms the transport route and that comprises the drive assembly, as well as a return path that runs under the external path and comprises a additional drive assembly. These are the sections of the transport route that are immediately adjacent to the respective drive assembly in the direction of circulation of the transport chain in the region of both the external and the return path. In this case, both the drive assembly of the external path and that of the return path are configured to allow the relative displacement of the current connections with respect to each other in the respective transition section and to activate at least partially the current connections already displaced. in the respective indentation section.

[0012] In accordance with yet another modality, provision can be made for at least one drive assembly comprising a first and a second drive device, the first drive device and the second drive device being interactively connected with the transition section and indentation section, respectively.

[0013] According to another preferred modality, provision can be made for the first drive device to be configured for the displacement of the current connections with respect to each other in the transition section, and the second drive device for the drive at least part of the transport element section already displaced in the recoil section.

[0014] According to another preferred modality, provision can be made for a first partial section to extend between the first and second drive devices and for a second partial section to extend immediately adjacent to the transition section in the direction of circulation.

[0015] According to another preferred modality, provision can be made for the first and / or the second drive assembly to be configured as a toothed roller.

[0016] According to another preferred modality, provision can be made for the second drive device associated with the recoil section to be configured as a magnetic belt drive device.

[0017] According to another preferred modality, provision can be made for the magnetic belt drive device to comprise at least one magnetic belt which is configured as a closed circuit and which can be driven in the direction of circulation synchronously with the recoil section corresponding to the transport element, and which can be magnetically coupled on its upper side with the lower side of the transport chain, at least partially along a coupling section.

[0018] According to another preferred modality, provision can be made for the magnetic belt drive device to be interactively coupled to the transport chain over the entire coupling section in such a way that a driving force acting in the direction of circulation can be applied to the transport chain.

[0019] According to another preferred modality, provision can be made for the drive assembly to comprise a single drive device which is configured as a screw drive and which is designed both to displace the current connections with respect to each other in the transition section when at least partially driving the transport element section already displaced.

[0020] According to another preferred modality, provision can be made for the drive device that is configured as a screw drive comprising a motor-operable screw that is interactively engaged with the transport chain.

[0021] According to another preferred embodiment, provision can be made for the screw to comprise a first and a second inclination section, in which the first inclination section extends along the transition section and the second inclination section extends at least in part along the indentation section.

[0022] According to another preferred modality, provision can be made for the first slope section to comprise a greater slope compared to the second slope section.

[0023] In accordance with another preferred modality, provision can be made for the slope in the first and / or the second slope section to be adjustable.

[0024] Advantageously two, three or more drive devices can be provided over the transport chain width, especially, depending on its type, if the drive device cannot or can hardly be extended, as is the case with a screw drive. This has the great advantage that the conveyor chain can, however, be uniformly loaded over the full width, and lateral deformations or displacements of the chain are avoided.

[0025] For the purpose of the invention, the expressions "substantially" or "about" mean variations of the respective exact value by +/- 10%, preferably by +/- 5% and / or variations in the form of insignificant changes for the occupation.

[0026] Modalities, advantages and possible additional applications of the invention arise from the following description of the modalities and outside the Figures. All the resources described and / or pictorially represented, whether alone or in any desired combination, are fundamentally the subject of the invention, regardless of their synopsis in the claims or their retroactive application. The content of the claims also becomes an integrated part of the description.

[0027] The invention is explained in detail below through the use of the modality examples, with reference to the Figures. In the Figures: Figures 1a to 1c show a schematic side view and bottom view of an example of an embodiment of an inventive transport device Figures 2a and 2b show a schematic side view of a partially represented inventive transport device Figure 3 shows a schematic side view and a plan view of an example of a transport chain Figures 4a and 4b show a schematic side view of an example of a transport chain, a schematic plan view of an additional example of a transport chain in the retracted state and extracted Figure 5 shows a schematic side view of an example of an additional embodiment of an inventive transport device Figures 6a and b show, each in side view, a first and a second embodiment of an optional drive device of a drive assembly configured as a magnetic belt drive device Figure 7 shows a view schematic side view of an example of an additional embodiment of an inventive transport device Figure 8 shows a schematic side view of another example of an additional embodiment of an inventive transport device, and Figure 9 shows a schematic side view of an embodiment according to Figure 9 with only one drive unit.

[0028] Identical reference numerals are used in the Figures for elements of the invention that are the same or act in the same way. For the sake of clarity, the individual Figures also show only those reference numbers necessary to describe the respective Figure.

[0029] The transport device generally indicated by 1 in the Figures is used, for example, to transport parts of goods 2 in at least one transport direction A between container handling machines (not shown) and / or deflector stations and / or transfer stations for the packaging and / or beverage industry.

[0030] In particular, for this purpose, the transport device 1 comprises at least one transport chain 3, 3 ', 3 "which forms a closed circuit and is driven to circulate infinitely in a direction of circulation U, and which can be configured, for example, as a conveyor belt, conveyor chain, flat top chain, modular chain or other suitable transport elements to transport the goods parts 2. With its upper length supported by at least one guide (not shown) in the Figures), the transport elements 3 each form the transport plane or common horizontal or essentially horizontal transport surface in which the pieces of goods 2 remain with their base of good to the part or vertical base. A plurality of transport chains 3, 3 ', 3 ", for example two, three, four or more, can also be arranged adjacent to each other in multiple rows, (that is, square or perpendicular to the transport direction A), so that the plurality of transport chains 3, 3 ', 3 “form, with at least part of the upper length of their corresponding circuit, a common transport surface, for example, horizontal, in a TE transport plane where goods pieces 2 can remain vertical at least partially at their base.

[0031] At the front end 1.1 (with respect to the transport direction A) and at the rear end 1.2 (with respect to the transport direction A) at least one transport chain 3, 3 ', 3 "is guided over the deflection 4.1, 4.2, in which at least one transport chain 3 is guided, in particular, at its front end 1.1, over a front deflection device 4.1 and, at its rear end 1.2, over a rear deflection device 4.2, and wherein a transport route TS for the goods parts 2 is formed between the front and rear deflection devices 4.1, 4.2 by means of at least one transport chain 3 (Figure 1). The transport route TS on which the goods parts 2 are transported is therefore formed, in particular, by the rear deflection device 4.2 in the transport direction A as far as the front deflection device 4.1. In the transport route region TS, at least the direction of movement U of at least one transport chain 3 corresponds to the direction of transport A.

[0032] The front and / or rear deflection device 4.1, 4.2 can also be configured to be operated by a motor. The front and / or rear deflection device

4.1, 4.2 can be configured, for example, as an electric motor,

preferably as a gearless electric motor, for example, in the form of a directly driven electric motor, preferably in the form of a stepper motor, servomotor or torque motor. For this purpose, the deflection device 4.1, 4.2 can comprise an internal stator connected in a pivotal manner fixed to the machine frame 1.10 of the transport device 1, and an external rotor. If the transport chains 3, 3 ', 3 "are used, then said rotor can preferably be provided on its peripheral face with a chain gear that concentrically surrounds a geometric motor axis, which is oriented quadrangularly to the direction transport A. The rotor can then create the interactive connection with at least one transport chain 3, in particular, by means of its corresponding gear.

[0033] The front and rear deflection devices 4.1, 4.2 are arranged, in particular, below the transport plane TE. Alternatively, the deflection devices 4.1, 4.2 can be configured as return rollers arranged in a machine frame 1.10 of the transport device 1 and assembled so that they are free to rotate.

[0034] At least one drive assembly 5, 5.1, 5.2, 5.3, which along the transport route TS is interactively connected with at least one transport chain 3, 3 ', 3 “, is also provided to drive the at least one transport chain 3 between deflection devices 4.1, 4.2. For example, the respective transport element sections in the form of chain links 41, 41 'of at least one transport chain 3, 3', 3 “on the bottom side facing in the opposite direction to the TE transport plan can comprise, each one, at least one drive finger 55 through which the corresponding chain links 41, 41 'are interactively connected with at least one drive assembly 5, 5.1, 5.2, 5.3. The at least one transport chain 3, 3 ', 3 "comprises a plurality of chain links 41, 41" which are rotatable and displaceable with respect to each other, so that when displacing individual chain links 41, 41 "with respect to each other, the average contact distance / density of the current connections 41, 41" of the respective transport chain 3, 3 ", 3" can be changed between them.

[0035] Figures 2a and 2b show, by way of example, in a schematic side and plan view, respectively, a 3 "transport chain for an inventive transport device 1. The transport chain 3" of Figures 2a and 2b comprises, in particular, a plurality of chain links 41 which are rotatable and displaceable with respect to each other, so that a relative displacement of individual chain links 41 with respect to each other varies or changes the average distance / contact density of the transport chain 3 ", that is, it can be increased or reduced. In particular, the transport element 3 "can be configured as a chain link 3 comprising a plurality of chain links 41 which can rotate and move with respect to each other in order to change the length of total current, that is, increased or reduced, the individual current connections 41 moving with respect to each other. In Figures 2a and 2b this ease of movement is indicated and / or made clear by the corresponding arrows.

[0036] Described in more detail, the individual chain links 41 each comprise a longitudinally extending conveyor section 42 from which, along its longitudinal extent, both a first and a second linkage section of fork-shaped chains 43, 44 branch off on both sides and are turned 180 ° in the opposite direction from each other. The first chain link section 43 is formed by chain link elements 45 arranged parallel to each other, while the second chain link section 44 is formed by chain link elements 46 also arranged parallel to each other. The chain link elements 45 of the first chain link section 43 are provided mutually offset from the chain link elements 46 of the second chain link section 44 along the conveyor section 42, so that chain link elements 45 of a chain link 41 can form an overlapping section on the chain link elements 46 of another chain link 41 via chain link elements 45 of that chain link 41 which interlocks with the chain link elements 46 from another chain connection 41.

[0037] On the underside facing away from the TE transport plane, corresponding chain connections 41 may comprise at least one drive finger 55 arranged in the chain connection in a fixed manner. Thus, the chain link elements 45 of the first chain link section 43 and the chain link elements 46 of the second chain link section 44 finally transpose a common chain link plane KE that matches the TE transport plan. In the embodiment shown in Figures 2a and 2b, in particular, five chain link elements 45 and six chain link elements 46 are provided that are arranged at the same or approximately the same distance from each other and parallel to each other in the cross section. common conveyor 42 thus forms a single chain link 41.

[0038] As shown in Figure 2a, in particular, the respective chain connections 41, in particular, their respective chain connection elements 46 of the second chain connection section 44, comprise slots 47 which preferably run parallel to the connection plane of current KE and take the form of openings engaged by a pin 48 which is provided in the current connection elements 45 of the first current connection section 43 and which can also run parallel to the current connection plane KE. In particular, the pin 48 of a chain link 41 engages the slots 47 of an adjacent chain link 41 so as to thus allow a repositioning of individual chain links 41 with respect to each other through the respective pins 48 which they are repositioned along the corresponding slots 47. Finally, the overall length of the transport chain 3 can be changed, that is, varied, by repositioning the individual chain links 41 with respect to each other.

[0039] Figure 3 shows a schematic side view of an additional embodiment of a transport chain 3 "which differs from the transport chain 3 'of Figures 2a and 2b, in particular, where, when viewed in the direction of transport A , every second chain link 41 comprises a linear path slot 47 which is actually inclined with respect to the chain link plane KE which has, in particular, an acute angle to the chain link plane KE. The remaining slots 47 of the other chain links 41 are provided parallel to the chain link plane KE in its longitudinal extension, as shown in Figures 2a and 2b.

[0040] If a transport chain 3 "that is configured in this way is now compressed, that is, squeezed, then the outward facing ends 43 'of the respective first chain connection section 43 of a chain connection 41 which has a slit 47 which runs parallel to the current connection plane KE are raised against a chain connection 41 which has an inclined slit 47, that is, they are deflected upwards.

[0041] Chain connections 41 whose outward-facing ends 43 'are shifted upward may - in the region of the outward-facing ends 43' - have a coefficient of friction that is greater than the rest of the chain connection surface

41. This can be accomplished, for example, through such a chain link 41 that comprises a type of surface rubber coating on its outward facing ends 43 '. As a particular advantage, pieces of goods 2 transported in transport chain 3 “are transported forward effectively in this way.

[0042] In a schematic plan view, Figures 4a and 4b show an additional example of a transport chain 3 "in which, unlike the embodiment shown in Figures 2a and 2b, the individual chain connections 41 'are additionally configured to have themselves ability to rotate and change the length, that is, they can be lengthened and shortened. In that embodiment of Figures 3a and 3b, the transport chain 3 "again comprises a plurality of chain links 41 'that can rotate and can be repositioned with respect to each other, so that the overall length of the transport chain 3" can be varied, that is, increased or reduced, by displacing the individual chain connections 41 'with respect to each other. Because the individual chain links 41 'are additionally configured to have the ability in themselves to rotate and change the length, an additional improved length variability of the entire 3 "transport chain, compared to the embodiment of Figures 2a and 2b, is achieved.

[0043] In particular, the transport chain 3 "of Figures 4a and 4b can also be configured as a transport chain 3 'comprising a plurality of chain links in the form of chain links 41' which, between themselves, can rotate and can be repositioned with respect to each other, in such a way that the total transport chain length can be varied by displacing individual chain links 41 'with respect to each other. Figures 3a and 3b show a single current connection 41 'in a retracted state, shown in Figure 4a, and in an extended state, shown in Figure 4b.

[0044] Described in more detail, the chain link 41 'comprises a first chain link segment 49 and a second chain link segment 50 which can be seen in the image of Figure 3a. Both the first and the second chain link segments 49, 50 in turn comprise individual chain link elements 51, 52, in which chain link elements 51 are associated with the first chain link segment 49 and elements chain link 52 associated with the second chain link segment 50. Each chain link element 51, 52 also comprises a slot 53 (shown only schematically in Figure 3b) in the form of an opening and extending, essentially, to the along the longitudinal length of the chain link elements 51, 52. On each side facing away from the respective slot 53, a pin 54 is arranged or passed between the corresponding chain link elements 51, or their associated slots 53 of the first chain link section 49, and the corresponding chain link elements 52, or their associated slots 53 of the second chain link section 50. Pins 54 are provided, in particular, so that they can be moved along the corresponding slots 53 and so that the chain link 41 'has, in particular, the ability to change its length between a retracted position shown in Figure 3a and an extended position shown in the figure

3b.

[0045] As can be seen from Figures 1a to 1c and Figures 5 and 7, in particular, the TS transport route can comprise at least two TSA transport route sections, namely, the TSA1 entry section and an output section TSA2 that can each extend between a deflection device 4.1, 4.2 and at least one drive assembly 5, 5.1, 5.2 and / or between two drive assemblies 5, 5.1, 5.2 that follow one the other in the direction of transport.

[0046] It is a particular feature of the transport device 1 that a TSA transport route section directly adjacent to at least one drive assembly 5, 5.1, 5.2, 5.3 in the U circulation direction of the transport chain 3, 3 ', 3 “comprise at least one transition section TA1 and an indentation section TA2, the at least one drive assembly 5, 5.1, 5.2, 5.3 being configured to displace chain links 41, 41 'with respect to each other in the transition section TA1 and to at least partially activate the already displaced chain links 41, 41 'in the setback section TA2.

[0047] In the embodiment of Figures 1a to 1c, the transport route TS of the transport device 1 comprises an input and output section TSA1 and TSA2, in which the output section TSA2 is immediately adjacent to the input section TSA1 in the direction of U circulation.

[0048] Described in greater detail, in this exemplary embodiment of Figures 1a to 1c, at least one transport route section TSA, TSA1, TSA2, namely, the output section TSA2 in this case, comprises the drive assembly inventively configured 5 , 5.1, 5.2. It is therefore possible for the at least one drive assembly 5, 5.1, 5.2 to carry out, for example, both a backward or compression of current connections 41, 41 'in the transition section TA1 of the output section TSA2 and a subsequent subsequent transport ( ie drive), for example, of the already compressed chain links 41, 41 'in the backward section TA2 in the transport direction A. In the process, the compression of the chain links 41.41 “generates a setback of goods parts 2 that are transported on the TS transport route.

[0049] Because the chain links already recessed or compressed 41, 41 'in the transition section TA1 are carried forward in the recession section TA2 in the direction of circulation U of the transport chain 3, 3', 3 “and therefore not they are stationary, no elastic impact occurs on the already retracted chain links 41, 41 'now present and carried forward in the TA2 setback section even in the event of an accumulation of the other chain connections 41, 41' that follow from behind, when viewed in U direction of circulation.

[0050] In this process, chain links 41, 41 'of transport chain 3, 3', 3 "are provided in the transition section TA1 of the elongated TSA transport route section (ie, they are transported in their relative positioning extended or recessed in the transition section TA1, and carried forward in the recession section TA2 in its recessed position (that is, in its compressed relative positioning).

[0051] The TSA transport route section can, in particular, form a setback region in which the goods pieces 2 transported along the TS transport route can accumulate. In particular, the drive assembly 5, 5.1,

5.2 is provided in the transition region for a TSA transport route section configurable as an indentation region.

[0052] The modality shown in Figures 1a to 1c of the drive assembly 5 that is associated with the output section TSA2 also comprises a first drive device 5.1 and a second drive device 5.2 to drive at least one transport chain 3, wherein the first drive device 5.1 and the second drive device 5.2 are in interactive connection with the transition section TA1 and the setback section TA2, respectively. In particular, the first drive device 5.1 is configured to displace the chain links 41, 41 'with respect to each other in the transition section TA1 and the second drive device 5.2 is configured to drive at least partially or push forward links chains already moved 41, 41 “in the TA2 setback section.

[0053] Described in more detail, the TA1 transition section extends between the first and second drive devices 5.1, 5.2, and the TA2 setback section extends immediately adjacent to the TA1 transition section in the U circulation direction. The recoil section TA2 can, at most, extend as far as the next deflection device 4.1, 4.2 or additional drive assembly 5 which goes in the U direction of the transport chain 3, 3 ', 3 “.

[0054] The first and second drive devices 5.1 and 5.2 of drive assembly 5 can also be arranged on machine frame 1.10 below the transport plane TE. For the control of the first and second drive devices 5.1, 5.2, they can be interactively connected to a control unit 11 by a control line 12.

[0055] The inventive transport device 1 can comprise an external path HT that forms transport path TS and a return path RT that runs under the external path HT. In particular, here, the external path HT extends between the rear deflection device 4.2 in the direction of transport A or in the direction of travel U as far as the front deflection device 4.1, thus forming the transport route TS; while the return path RT extends between the front deflection device 4.1 and the rear deflection device 4.2. It is especially advantageous when at least one drive assembly 5, 5.1,

5.2 is associated with the external path HT.

[0056] Provision can also be made for the return path RT to comprise a further drive assembly 5, 5.1, 5.2. In that case, provision can be made for the front deflection device 4.1 to form the first drive device 5.1 of the drive assembly 5 and for a second drive device 5.2 to be provided downstream of the front deflection device 4.1 in the U direction of travel.

[0057] Described in greater detail, the TA1 transition section extends between the first drive device 5.1, configured as the front deflection device 4.1, and the second drive device 5.2, in which the TA2 setback section extends immediately adjacent to the transition section TA1 in the direction of circulation U of the transport chain 3, 3 ', 3 “.

[0058] The recoil section TA2 can extend as far as the next deflection device 4.1, 4.2 which follows in the U circulation direction of the transport chain 3, 3 ', 3 "or as far as the additional drive assembly 5 .

[0059] Therefore, the drive assembly 5 provided on the return path RT is also configured to displace chain links 41, 41 'with respect to each other in the transition section TA1 and for at least partial drive or forward pressing of the chain links already displaced 41, 41 'in the TA2 setback section. In particular, this opens up the need for additional tensioning and / or deviating devices in the return path RT, which include, in particular, a chain stop or current collector.

[0060] The essence of the invention, however, is expressly not limited to the modality shown in Figure 1, in terms of the number of a drive assembly 5, 5.1, 5.2, for the respective transport chain 3, 3 ', 3 “ . Instead, it is also possible, within the scope of the present invention, to provide three, four, five or more drive assemblies 5 for the respective, but at least one, transport chain 3, depending, for example, on the size of the transport device 1; that is, depending on the length of the transport route TS or the mass of the goods parts 2 to be transported, or the desired geometric design of the transport route TS, such as linear or curved.

[0061] According to the modality shown in Figures 1a to 1c, the first and second drive devices 5.1, 5.2 of the drive assembly 5 can be configured as an electric motor, preferably as a gearless electric motor, for example, in the form of an electric motor directly driven, preferably in the form of a stepper motor, servomotor or torque motor. The first and second drive devices 5.1, 5.2 each in the form of an electric motor can, for example, comprise an internal stator pivotally connected with the machine frame 1.1 of the transport device 1, and an external rotor . If the transport elements 3 in the form of chains are used on their peripheral face, then external rotor 7 can preferably be provided with a chain gear 8 that concentrically surrounds the MA motor axis, that is, oriented quadrangularly to the direction of transport A. Each rotor 7 can, in particular with its corresponding gear 8, produce the interactive connection with at least one transport chain 3, for example, by engaging gear 8 of rotor 7 with drive fingers 55 of the corresponding transport chain 3. The first and second drive devices 5.1, 5.2 may comprise the same or a different number of teeth of the chain gear. The first drive device 5.1 has, in particular, fewer teeth than the second drive device 5.2. In particular, the first and / or the second drive devices 5.1, 5.2 of the drive assembly 5 are configured as a toothed roller.

[0062] Here, the control of the first and second drive devices 5.1, 5.2 of the drive assembly 5 can be carried out by the common control unit 11 which is, for example, the machine control system or a part of the control system machinery of the transport device 1 or a system comprising the transport device 1. The first and second drive devices 5.1,

5.2 of the drive assembly can, in particular, be controlled and / or regulated in coordination with each other by means of the control unit 11.

[0063] Provision can be made, in one modality, for the processor device 11.1 to be configured to operate the respective drive devices 5.1, 5.2 in a master / slave coupling. For example, the first and second drive devices 5.1, 5.2 can be operated in a master / slave coupling where, for example, the first drive device 5.1 is the master (ie control unit) via the unit control unit 11, and the second drive device 5.2 is a slave (ie, follower unit) that is, coupled to the master, by means of control unit 11. Provision can be made for drive units 5.1, 5.2 to alternate in their function as master. In particular, synchronization of the two drive units 5.1, 5.2 is guaranteed in this way.

[0064] The operation of the first and second drive devices 5.1, 5.2 of the drive assembly 5 can be controlled, for example, through a STR control routine that is performed on the control unit 11. For this purpose, the unit Control module 11 may comprise, for example, at least one processor unit 11.1 to execute the control routine STR. Control unit 11 also comprises, for example, a storage unit 11.2 that interacts with processor unit 11.1 for at least temporary storage of SD control data that is, for example, transmitted to / received by the first and second drive units 5.1, 5.2 via an interface 11.3 from control unit 11 on control lines

12.

[0065] SD control data comprises, in particular, real control data ISD1, ISD2 determined in the first and second drive devices 5.1,

5.2, such as, for example, a respective actual speed IDZ1, IDZ2, actual direction of rotation IDR1, DR2, actual angle of rotation IDW1, IDW2 and actual torque IDM1, IDM2, as well as corresponding target control data SSD1, SSD 2 such as, for example, target speed SDZ1, SDZ2, target direction of rotation SDR1, SDR2, target angle of rotation SDW1, SDW2 and target torque SDM1, SDM2. The parameters indicated by index 1 refer to the first drive device 5.1 and those indicated by index 2 refer to the second drive device

5.2. If additional drive assemblies 5 are provided in other embodiments of the invention, then a corresponding parameter defined from the actual data and target data with a corresponding index will be stored as SD control data in the control unit 11 for those drive assemblies 5.

[0066] Processor unit 11.1 can, in particular, be configured to determine actual ISD control data from the nominal current required to operate the respective drive arrangement 5.1, 5.2, in order to generate a corresponding drive movement by means of at least one transport chain 3. The drive movement generated through at least one transport chain 3 can also be deduced from the change over time of the nominal current and / or power consumption, or from the change to the over time the power consumption of the first and second drive devices 5.1, 5.2.

[0067] Processor unit 11.1 is, in particular, configured to compare actual ISD control data received through interface 12.3 with the target control data SSD and as a function of it to convert them into control data SD for STR control routine, and / or to define control commands that are transmitted to the corresponding drive assembly 5 of the corresponding TSA transport route section, in order to operate in a controlled manner with respect to the transport path section TSA, as a function of the SD control data that is generated through the STR control routine. Predefined, that is, pre-set SSD target control data can also be stored in the 10.2 storage unit.

[0068] If a plurality of inventively configured TSA transport route sections are provided, then each TSA transport route section can be operated via its associated drive assembly 5, 5.1, 5.2 and / or operable deflection device 4.1, 4.2 and, in particular, with the use of corresponding SSD target control data compared to the other supplied drive assemblies 5, 5.1, 5.2 and / or operable deflection devices 4.1, 4.2, ie for example target speed SDZ, the target angle of rotation SDW or target torque SDM.

[0069] Provision can be made, for example, for TSA transport route sections to be controlled in coordination with each other with different SSD target control data, for example, a different SDZ target speed, through the control. By configuring the transport chain 3 ', 3 “, according to the modalities in Figures 2a and 2b or 3a and 3b, respectively, individual TSA transport route sections can be carried out on TS transport route with different additional properties, such as, for example, accumulation or spacing between the respective transport materials 2.

[0070] Preferably, provision can also be made for the transition section and setback section TA1, TA2 of the TSA transport route section that is immediately adjacent to at least one drive assembly 5, 5.1, 5.2 in the U circulation direction of the transport chain 3, 3 ', 3 “to be operated in coordination with each other with different SSD target control data, for example, a different SDZ target speed, through the control unit 11. Configuring the transport chain 3 ', 3 ", according to the modalities in Figures 2a and 2b or 3a and 3b, respectively, the chain links 41, 41' can be displaced with respect to each other, in particular recessed, in the section of transition TA1, and in the withdrawal section TA2 the current links 41, 41 'can be driven forward, that is, pushed forward. For this purpose, provision can be made, in particular, for transition section TA1 of the TSA transport route section to be operated at an SDZ target speed, that is, greater compared to the TA2 setback section of that transport route section. TSA transport. Throughout the TA1 transition section this will result in a reduction in the transport chain length 3, 3 ', 3 “due to a setback or pressing together of the individual chain connections 41.41“ and, consequently, due to an accumulation of pieces of goods 2 present in this transition section TA1 of the TS transport route.

[0071] In a schematic side view, Figure 1d shows a transport device only partially represented 1, in which, unlike the embodiment in Figures 1a to 1c, at least one of the two driving devices

5.1, 5.2, namely, the first and / or the second drive devices 5.1, 5.2, are interactively engaged with both a transport chain section 3 that runs along the external path HT and a transport chain section 3 that runs along the RT return path. The drive device 5.1, 5.2, which is configured in this way, therefore simultaneously activates the transport chain 3 in the external travel region HT and in the return travel region RT.

[0072] Unlike the modality of a 5, 5.1 drive assembly,

5.2 described in relation to Figures 1 to 3, in which the first and / or the second drive devices 5.1, 5.2 are configured as a toothed roller, the subsequent Figures 5 to 8 show additional examples of modalities for a drive assembly 5, to which, although not explicitly mentioned in the following statements, the statements previously made in relation to Figures 1 to 3 also apply. The embodiment of Figure 5 also comprises a drive assembly 5 which has a first and a second drive device 5.1, 5.2, wherein the first drive device 5.1, as described in the embodiment of Figures 1 to 4, is configured as a roller toothing and the second drive device 5.2 as a magnetic belt drive device 20. In this case, the drive device in the active region of the return path RT corresponds to the second drive device 5.2 and is configured as a magnetic belt drive device . It is also possible, however, not shown, that the coupling described above is provided with a toothed roller on the return path.

[0073] A representation of the control unit has been omitted for the sake of clarity, however, it is also present in the form of Figure 5 and interactively connected to each of the two drive devices 5.1, 5.2 via control lines (also not shown). The control unit is configured according to the description for Figures 1a and 1b.

[0074] Here, the first drive device 5.1, which is configured as a toothed roller is associated with the transition section TA1, while the second drive device 5.2, which is configured as a magnetic belt drive device 20, is associated to the TA2 indentation section or is interactively connected to it.

[0075] Magnetic belt drive device 20 comprises at least one magnetic belt 21 configured as a closed loop and driven in the direction of circulation U synchronously with the corresponding recoil section TA2 of the transport element 3, 3 ', 3 ", and which, on its upper side, can be magnetically coupled to the lower side of the transport chain 3, 3 ', 3 “along a KS coupling section. The magnetic coupling along the KS coupling section is further explained in the description with Figures 6a and 6b.

[0076] In this case, a plurality, for example, two, three, four or more,

magnetic straps 21 can also be provided arranged adjacent and / or separated from each other in multiple rows, that is, square or perpendicular to the direction of circulation U, so that the multiple magnetic straps 21 can be coupled to at least part of their respective upper length of its circuit corresponding to the lower side of the transport chain 3, 3 ', 3 “. In particular, the magnetic straps 21 can run between the guides (not shown) in which, in the region of the transport route TS, at least the transport chain 3, 3 ‘, 3’ is slidably supported.

[0077] At the front end 20.1 with respect to the direction of movement U and with respect to the end 20.2 which is rear in the direction of movement U, at least one transport chain 3 is guided over the deflection devices 4.1, 4.2, being that the at least one magnetic belt 21 is guided, in particular, at its front end 20.1 over a front deflection device 22.1 and at its rear end 20.2 over a rear deflection device 22.2. Between the front and rear ends 20.1 and 20.2 a KS coupling section, by which at least one magnetic belt 21 can be magnetically coupled to the conveyor chain 3, 3 ', 3 “, is formed on the side facing the underside of the transport chain 3, 3 ', 3 “.

[0078] The circulation direction U of the at least one magnetic belt 21 corresponds to the circulation direction U of the transport chain 3, 3 ‘, 3“, in the region of the coupling section KS at least.

[0079] Provision can also be made for front and / or rear deflection devices 22.1, 22.2 to be operated by engine. The front and / or rear deflection device 22.1, 22.2 can be configured, for example, as an electric motor, preferably as an electric motor without gear, for example, in the form of a directly driven electric motor, preferably in the form of a motor stepper, servomotor or torque motor. For that purpose, the deflection device 22.2 may comprise an internal stator connected in a pivotal manner fixed to the machine frame 1.1 of the transport device 1, and an external rotor. The latter can be configured to initiate the pivoting movement on the magnetic belt 21.

[0080] In particular, and according to the embodiment of Figure 5, the drive assembly 5, which comprises the first drive device 5.1, as well as the second drive device 5.2 configured as a magnetic belt drive device 20 to drive at least one transport chain 3, is associated with the output section TSA2. Here, the first drive device 5.1 is interactively connected to the transition section TA1 and the second drive device 5.2 to the setback section TA2. In particular, the conveyor chain 3, 3 ‘, 3“ is magnetically coupled to the magnetic belt drive device 20 in the region of the recoil section TA2.

[0081] In this embodiment of Figure 5 also, the first drive device 5.1 is configured for the displacement of the current connections 41, 41 'with respect to each other in the transition section TA1 and the second drive device 5.2 is configured for the at least partial activation or front pressing of the already moved chain links 41, 41 'in the TA2 setback section. Described in more detail, the TA1 transition section extends between the first and second drive devices 5.1, 5.2, in particular between the first drive device 5.1 and the rear deflection device 22.2 of the second drive device 5.2 configured as a device magnetic belt drive 20, in which the recoil section TA2 extends immediately adjacent to the transition section TA1 in the direction of circulation U of the transport chain 3, 3 ', 3 “. The recoil section TA2 can extend as far as the next deflection device 4.1, 4.2 which follows in the U circulation direction of the transport chain 3, 3 ‘, 3“ or as far as the additional drive assembly 5.

[0082] In particular, the actuation or pressing takes place additionally in the setback section TA2 with a second actuation device 5.2 configured as a magnetic belt actuation device 20 along the entire coupling section KS. In other words, therefore, the magnetic belt drive device 20 is preferably connected interactively over the entire coupling section KS with the transport chain 3, 3 ', 3 "in such a way that a driving force directed in the direction of circulation U of transport chain 3, 3 ', 3 "can be applied to transport chain 3, 3', 3".

[0083] Figures 6a and 6b each show, in a schematic side view, two examples of modalities of a second drive device 5.2 configured as a magnetic belt drive device 20. According to the mode of Figure 6a, the fur at least one magnetic belt 21 comprises a plurality of individual magnets 25, in particular permanent magnets, preferably evenly distributed over the entire circumferential length, and which interact with and, in particular, can be coupled to the counter magnets

3.1 supplied in transport chain 3, 3 ‘, 3“. It is a particular advantage if each of the current connections 41, 41 'comprises a counter-magnet 3.1. Each current connection 41, 41 'preferably comprises a magnet 3.1.

[0084] Alternatively or in addition to the embodiment of Figure 6a, according to the embodiment of Figure 6b, a magnet 26 can be provided in the region of the coupling section KS under at least one magnetic belt 21, preferably in contact under at least a magnetic belt 21, which with counter-magnets 3.1 of transport chain 3, 3 ', 3 “creates a sufficient magnetic force for a frictional contact between the upper side of the magnetic belt 21 and the lower side of the transport chain 3, 3 ', 3 “to be produced in the region of the KS coupling section, thus, it becomes possible that a driving force directed in the U direction of the transport chain 3, 3', 3” is transferred or introduced into the supply chain transport 3, 3 ', 3 "by means of the magnetic belt 21. The magnet 26 can be configured as a permanent magnet or electromagnet.

[0085] Figure 7 shows a modality of a drive assembly that has a drive device 5.3 that is configured in the TA2 indentation section for both the displacement of current connections 41, 41 'with respect to each other in the transition section. TA1 and for the at least partial activation of the already displaced chain connections 41, 41 '. Although this is not shown here, the drive device 5.3 could also extend at least partially in the input section TSA1 in order to drive or guide the transport chain 3 in the rear deflection region 4.2. Here, drive assembly 5.3 is configured as an electromagnetic linear drive 35 that has a plurality of motion elements 37 (movers) arranged in a movable manner, guided on a track 36.

[0086] Individual movement elements 37 (movers) are configured so that they are separately operable and mobile with respect to each other. In particular, movers 37 each comprise a permanent magnet 38 through which the interactive connection with magnets 3.1 provided in the conveyor chain 3 can be produced. Here, the track 36 with movers 37 which are supplied in a circulating manner can be dimensioned, so that the respective permanent magnets 38 of the movers 37 can be in magnetic interactive connection with both the 3 magnets 3.1 of the transport chain 3 which are present on the external path HT and with those present on the return path RT. It is an advantage here for each or at least every second current connection 41 of the transport chain 3 to comprise a magnet 3.1.

[0087] As with the other modalities, the modality shown in Figure 7 can, of course, be provided in multiple extensions or to a lesser extent, so that only the different section transitions are covered. The magnetic coupling with the transport chain 3 is carried out in a similar manner, as described above with the other modalities.

[0088] It is of particular advantage if the movers 37 comprise in the transport direction one or a plurality of parallel guide slots or guide grooves in which the driving fingers 55 can be inserted and accommodated. In one embodiment, the finger itself may comprise a magnet or ferromagnetic material or be formed from the latter, and in movers 37 a magnet may be arranged at least on one side of the parallel guide slots or guide grooves.

[0089] The particular advantage of this modality is that the approach and also the subsequent separation of the current connections 41 is completely controlled and guided. As a result, it is possible to obtain maximum smooth operation and different degrees of compaction, especially when the number of movers 37 equals or is not more than half the number of the upper chain connections.

[0090] Unlike the modalities of a drive assembly 5,

5.1, 5.2, as described in combination with the previous Figures, and in each of them, a first and a second drive device 5.1, 5.2 are provided, the embodiment of Figure 8 comprises a drive assembly 5 that has a single drive device drive 5.3 which is configured both to move chain links 41, 41 'with respect to each other in the transition section TA1 and for the at least partial activation of the already displaced chain links 41, 41' in the setback section TA2.

[0091] For the sake of clarity, a representation of the control unit has also been omitted from the image in Figure 7, however, it is also present in the mode of Figure 7 and interactively connected to the drive device

5.3 via control lines (also not shown). The control unit is configured, according to the description, for Figures 1a and b.

[0092] It is therefore possible for the single drive assembly 5.3 to carry out either a recoil or compression of the current connections 41, 41 'in transition section TA1 of the output section TSA2 input section and a subsequent subsequent transport (ie drive ) of the already compressed chain links 41.41 'in the backward section TA2 in the direction of circulation U.

[0093] In particular, the only drive device 5.3 is configured here as a screw drive 30 that has at least one motor driven screw 31 that is in interactive connection with the transport chain 3, 3 ', 3 ", which drives the latter, in particular, in the direction of circulation U. The screw 31 is interactively engaged, in particular, with drive fingers 55 of the transport chain 3, 3 ', 3 “.

[0094] Here, worm gear 31 comprises a first and a second slope section SA1 and SA2, wherein the first slope section SA1 and the second slope section SA2 extend along the transition section TA1 and the cross section. TA2 indentation, respectively. In particular, the first slope section SA1 has a greater slope (i.e., a larger thread spacing) than the second slope section SA2.

[0095] Here, provision can be made for the inclination (that is, the spacing of the individual threads) of screw 31 to be configured in the first and / or the second inclination sections SA1, SA2 in order to be adjustable (that is, variable ). In particular, provision can be made for the slope ratio of the slope section SA1 to be adjustable (i.e., variable) in comparison to the second slope section SA2. In particular, provision can be made for the pitch ratio and / or the thread spacing to be adjustable by means of the control unit in a regulated and / or controlled manner.

[0096] Needless to say, within the scope of the present invention, the drive assemblies 5, 5.1, 5.2 described in the modalities for the TSA inventively configured transport route sections can be combined in any desired way for both the external path HT as for the RT return path. In particular, a drive assembly 5, 5.1, 5.2 configured differently compared to the return path RT can be provided on the external path HT. It is also evident that if only a magnetic belt drive device 20 is used, then the transport chain 3, 3 ', 3 ", 3'" does not need to comprise any drive finger 55, since the interactive connection (ie ie, coupling) can be carried out magnetically and not mechanically.

[0097] In the case of all modalities, the indentation section TA2 is just a section of the output section TSA2, it being immediately clear that the indentation section TA2 and the output section TSA2 can be identical and that the indentation section TA2 in particular, it can extend to the end of the transport chain 3, 3 ', 3 “(that is, flush with the front deflection device). With this advantageous modality, a compacted group of goods parts 2 is transferred without change in its compacted arrangement to a downstream means of transport, such as a conveyor belt, for example.

[0098] The invention has been described above with reference to examples of the modalities. It is evident that numerous variations, as well as modifications, are possible, without departing from the inventive concept that underlies the invention. In particular, different variants of the drive units from the previous modes can be properly combined.

[0099] Above all, it can be advantageous, as shown in Figure 9, to provide a simplified drive unit in the active region of the return path since less quality is required from the recoil behavior of the means of transport, as it is not interactively connected to the goods parts.

[00100] Alternatively, as shown in Figure 9, the transport chain 3 in the region of the return path RT may also not comprise any drive device, however, instead the transport chain 3 is passed through a guide channel 60 in which it is sliding over a base plate 61 and is protected against lifting by one or a plurality of covers

62. Friction results in a situation of disorderly recoil of the current connections in the region of the guide channel 60, in which this situation of disorderly recoil in the region of the return path RT is fully adequate as a rule.

LIST OF REFERENCE CHARACTERS 1 Transport device

1.1 Front end

1.2 Rear end

1.10 Machine frame 2 Parts of goods 3, 3 ‘, 3“ Conveyor chain

3.1 Magnet

4.1 Front deflection device

4.2 Rear deflection device 5 Drive assembly

5.1 First drive device

5.2 Second drive device

5.3 Drive device

7 Rotor 8 Chain gear 9 Support shaft 11 Control unit

11.1 Processor unit

11.2 Memory unit

11.3 Interface 12 Control line 20 Magnetic belt drive device

20.1 Front end

20.2 Rear end 21 Magnetic belt

22.1 Front deflection device

22.2 Rear deflection device 25 Magnet 26 Magnet 30 Worm 31 Worm gear 35 Electromagnetic direct drive 36 Rail 37 Booster 38 Permanent magnet 41, 41 'Chain link 42 Conveyor section 43 First chain link section 44 Second section of chain connection 45 Chain connection element 46 Chain connection element 47 Slot 48 Pin

49 First chain link segment 50 Second chain link segment 51 Chain link element 52 Chain link element 53 Slit 54 Drive finger 60 Guide channel 61 Base plate 62 Cover A Transport direction TS Route transport TE transport plan TA1 Transition section TA2 Indent section TSA Transport route section TSA1 Inlet section TSA2 Outlet section KE Current connection plane KS Coupling section HAT External path RT Return path U Circulation direction SA1 First inclination section SA2 Second inclination section STR Control routine SD Control data ISD1; ISD2 Real control data IDZ1; IDZ2 Actual speed IDR1, IDR2 Actual direction of rotation

IDW1, IDW2 Rotation angle IDM1, IDM2 Actual torque SSD1, SSD2 Target control data SDZ1.SDZ2 Target speed SDR1, SDR2 Direction of target rotation SDW1, IDW2 Target rotation angle SDM1, SDM2 Target torque

Claims (1)

1. Conveying device (1) for conveying pieces of goods (2) in a conveying direction (A) that has at least one conveying chain (3, 3 ', 3 “) that forms a closed circuit and is driven to circulate in a direction of circulation (U) and that, in order to configure a closed circuit, said at least one transport chain is guided over a front deflection device (4.1) with respect to the transport direction (A) and over a rear deflection device (4.2) with respect to the transport direction (A), the transport device (1) forming a transport route (TS) for the goods pieces (2) between front and rear deflection devices (4.1, 4.2) through at least one transport chain (3, 3 ', 3 "), at least one drive assembly (5, 5.1, 5.2, 5.3) which is interactively connected along the transport route (TS) with at least one transport chain (3, 3 ', 3 ") which is provided to drive at least one transport chain (3, 3 ', 3 “) between the deflection devices (4.1, 4.2), in which the at least one transport chain (3, 3 ', 3 ") comprises a plurality of chain connections (41, 41') which are rotatable and movable in relation to each other, characterized by fact that a transport route section (TSA) immediately adjacent to at least one drive assembly (5, 5.1, 5.2, 5.3) in the circulation direction (U) of the transport chain (3, 3 ', 3 ") comprises at least one transition section (TA1) and an indentation section (TA2), with at least one drive assembly (5, 5.1, 5.2, 5.3) is configured for the displacement of the current connections (41, 41 ') in relation to each other in the transition section (TA1) and for the at least partial activation of the already displaced current connections (41, 41') in the section indentation (TA2). 2. Transport device (1) according to claim 1, characterized by the fact that at least one drive assembly (5, 5.1, 5.2, 5.3) is provided in the transition region of a transport route section (TSA) configured as an indentation region. 3. Transport device (1) according to claim 1 or 2, characterized by the fact that an external path (HT) that forms the transport route (TS) and comprises the drive assembly (5, 5.1, 5.2 , 5.3) as well as a return path (RT) that runs under the external path (HT) and comprises an additional drive assembly (5, 5.1, 5.2, 5.3), with the transport route sections (TSA) in the region of the external path (HT) and in the region of the return path (RT) which are immediately adjacent to the respective drive assembly (5, 5.1, 5.2, 5.3) in the direction of circulation (U) of the transport chain (3, 3 ' , 3 "), which each comprise at least one first transition section and setback section (TA1, TA2), both with the drive assembly (5, 5.1, 5.2, 5.3) of the external path (HT) and with the drive assembly (5, 5.1, 5.2, 5.3) of the return path (RT) that is configured for the displacement of the current connections (41, 41 ') in relation to the others in the respective transition section (TA1) and for at least partial activation of the already displaced current connections (41, 41 ‘) in the respective setback section (TA2). Transport device (1) according to any one of claims 1 to 3, characterized in that the at least one drive assembly (5) comprises a first and a second drive device (5.1, 5.2), the first drive device (5.1) and the second drive device (5.2) are interactively connected with the transition section (TA1) and the setback section (TA2), respectively. 5. Transport device (1) according to claim 4, characterized by the fact that the first drive device (5.1) is configured for the displacement of the chain connections (41, 41 ') in relation to each other in transition section (TA1) and the second drive device (5.2) is configured for the at least partial drive of the already displaced transport element section (41, 41 ') in the recoil section (TA2). 6. Transport device (1) according to claim 4 or 5, characterized by the fact that the transition section (TA1) extends between the first and the second drive devices (5.1, 5.2) and the second section recoil (TA2) extends immediately adjacent to the transition section (TA1) in the circulation direction (U). Transport device (1) according to any one of claims 4 to 6, characterized in that the first and / or second drive assemblies (5.1, 5.2) are configured as a toothed roller. 8. Transport device (1) according to any one of claims 4 to 7, characterized in that the second drive device (5.2) associated with the recoil section (TA2) is configured as a belt drive device magnetic (20). 9. Transport device (1) according to claim 8, characterized in that the magnetic belt drive device (20) comprises at least one magnetic belt (21) which is configured as a closed circuit and is operable in the circulation direction (U) synchronously with the corresponding recoil section (TA2) of the transport element (3, 3 ', 3 ") and which, on its upper side, can be magnetically coupled to the lower side of the transport chain ( 3, 3 ', 3 ") at least partially along a coupling section (KS) that extends at least partially along the indentation section (TA2). Transport device (1) according to claim 8 or 9, characterized in that the magnetic belt drive device (20) is interactively connected over the entire coupling section (KS) with the transport chain (3, 3 ', 3 ") in such a way that a driving force directed in the direction of circulation (U) can be applied to the transport chain (3, 3', 3"). Transport device (1) according to any one of claims 1 to 10, characterized in that the drive assembly (5) comprises a single drive device (5.3) which is configured as a screw drive ( 30) and that it is configured to move the chain links (41, 41 ') in relation to each other in the transition section (TA1) and, also, for the at least partial activation of the already displaced transport element sections (41 , 41 '). Transport device (1) according to claim 11, characterized in that the drive device (5.3) which is configured as a screw drive (30) comprises at least one motor-operable screw (31) which is in interactive engagement with the transport chain (3, 3 ', 3 “). 13. Conveying device (1) according to claim 11 or 12, characterized in that the screw (31) comprises a first and second inclination sections (SA1, SA2), the first inclination section ( SA1) extends along the transition section (TA1) and the second slope section (SA2) extends at least partially along the setback section (TA2). Transport device (1) according to any one of claims 11 to 13, characterized in that the first inclination section (SA1) comprises a greater inclination than the second inclination section (SA2). Transport device (1) according to any one of claims 11 to 14, characterized in that the inclination in the first and / or second inclination sections (SA1, SA2) is configured in an adjustable way. 16. Transport method for transporting parts of goods (2) in a transport direction (A), which has at least one transport chain (3, 3 ', 3 ") that forms a closed circuit and is actuated in a manner circulating and which, in order to configure a closed circuit, is guided on a front deflection device (when seen in the transport direction (A)) (4.1) and on a rear deflection device (when seen in the transport direction (A) )) (4.2), and where a transport route (TS) for the goods parts (2) is configured between the front and rear deflection devices (4.1, 4.2) by means of at least one transport chain (3 , 3 ', 3 "), characterized in that a transport device (1), of the type defined in any one of claims 1 to 15, is used. 17. Use of a transport device (1), of the type defined in any one of claims 1 to 16, characterized in that it is for transporting parts of goods (2) in at least one transport direction (A) between handling machines container and / or pressing stations and / or transfer stations and / or deflector stations and / or a contraction tunnel and / or a palletizer for the packaging and beverage industry.