Feeding device

Abstract

A feeding device for the position-defined feeding of contact elements to a processing unit is disclosed, wherein the feeding device has a vibrating feed pot and an inner pot enclosed by it for receiving different contact elements.

Description

[0001] The invention relates to a feeding device for the position-defined feeding of contact elements according to the preamble of claim 1.

[0002] Such feeding devices are used, for example, to feed wire ferrules to a crimping machine. Wire ferrules can be supplied, for example, as taped reels, which are then fed to the crimping machine for further processing via a conveyor unit, depending on the required wire ferrule type. Such a solution for processing taped wire ferrules is disclosed, for example, in DE 10 2015 102 060 A1 of the applicant and marketed under the name “Z+F Unic-GV®”.

[0003] In many cases, however, the wire ferrules or other contact elements are not processed on tapes but individually, with the individual contact elements being fed to the processing unit, in particular the crimping machine, via a vibrating feeder. The design of such feeding devices with a vibrating feeder is described, for example, in the publications DE 20 2014 105 634 U1 and DE 10 2017 102 618 A1, which also originate from the applicant. In these known feeding devices, the individual contact elements, for example wire ferrules, are received in the vibrating feeder, which is set into vibration by a vibration unit such that the loose wire ferrules are conveyed along a spiral conveyor path along the inner circumferential wall of the vibrating feeder in the direction of an alignment unit of the feeding device.In this alignment unit, the wire ferrules are brought into a predetermined processing position and, if necessary, conveyed via a downstream singulation unit to an interface from which the singulated, correctly oriented wire ferrules are then fed to the processing unit, in this case the crimping machine. Such a processing unit is offered by the applicant, for example, under the name "Z+F Unic-LS®", which crimps singulated wire ferrules to a stripped cable end.

[0004] In series production, it is necessary to crimp different cable cross-sections and electrical components / contact elements together. With tape-mounted contact elements / ferrules, this is relatively easy with a processing unit such as the one described in the aforementioned DE 10 2015 102 060 A1, as only the roller holding the desired contact element needs to be activated. The aforementioned stripper-crimper "Z+F Unic-LS®" is designed so that different cable cross-sections can be stripped and crimped without complex retooling. However, a vibratory feeder must be mounted in each case to hold the intended contact elements, and the individual contact elements are fed to the interface via this feeder.To reduce these changeover times, the applicant proposes in European patent EP 3 794 690 B1 to design a processing unit, for example a stripper-crimper as described above, with a plurality of vibrating feed pots which are positioned either side by side in a plane or one above the other in a vertical direction, wherein each vibrating feed pot is in turn assigned an alignment and / or singulation device by which the respective contact element can be conveyed to the interface of the crimping machine.

[0005] Similar processing units with multiple vibrating feed pots are also known from the publications CN 104 466 603 A, CN 104 300 340 A, EP 0 036 240 A1, CN 105 703 195 A or US 5,511,307 A, wherein at least two vibrating feed pots are also arranged one above the other or next to each other in a horizontal plane.

[0006] While such a system can somewhat reduce setup times when switching to different contact elements compared to the solutions mentioned at the beginning, the problem remains that a considerable amount of space is required to accommodate the different vibratory feed pots, making a compact design of a stripper-crimper difficult.

[0007] In contrast, the invention is based on the objective of creating a feeding device for the position-defined feeding of contact elements to a processing unit, which, with a compact design, enables variable processing of different individual contact elements.

[0008] This problem is solved by a feeding device with the features of claim 1.

[0009] Advantageous further developments of the invention are the subject of the dependent claims.

[0010] The feeding device according to the invention is preferably designed for the position-defined feeding of contact elements, such as wire end ferrules, to a processing unit, preferably a crimping machine, and has a vibrating feeder pot, via which the contact elements can be conveyed from a receiving chamber along an approximately spiral conveying path formed along an inner circumferential wall of the vibrating feeder pot in the direction of an alignment unit which is in operative connection with the vibrating feeder pot and to which a cam is assigned, along which the contact elements can be transported in a position-oriented manner in the direction of an interface to the processing unit.According to the invention, a vibratory feeder inner pot is provided which is, preferably coaxially, at least partially encompassed by the vibratory feeder pot and which is designed with an approximately spiral inner conveying track, an inner cam and an inner alignment unit as well as an inner interface to the processing unit, which run or are positioned at a distance, preferably at least partially at a radial or circumferential distance (i.e. viewed in the circumferential direction) from the corresponding components of the vibratory feeder pot.

[0011] The concept according to the invention thus creates a pot-in-pot system in which the inner pot is at least partially enclosed by the vibrating feeder pot, so that the required installation space is significantly reduced compared to conventional solutions in which the vibrating feeder pots are offset from each other vertically or arranged in a horizontal plane. In principle, the same installation space is required to process two different contact elements as is required in conventional solutions for providing a single contact element type.

[0012] Naturally, several such pot-in-pot arrangements can be assigned to a processing unit, so that, for example, four or six contact element types are provided in a vibratory feeder pot / inner pot and can be further processed by means of a processing unit.

[0013] In one embodiment of the invention, the inner pot, with the alignment unit and inner guide formed thereon, projects axially from the vibratory feeder pot with respect to the inner conveying track, wherein the inner alignment unit and the inner interface are formed on this projecting area of ​​the inner pot. It is particularly advantageous if the interface and the inner interface are offset radially outwards relative to the circumference of the pot, i.e., the circumference of the vibratory feeder pot, and the inner pot.

[0014] It is particularly preferred if the interfaces or the components of the feeding device leading to them are arranged offset approximately in the circumferential direction and approximately in the direction of the axis of the vibrating feeder pot.

[0015] Supporting the inner pot is particularly easy if a support bushing is arranged approximately in the middle of the bottom of the vibrating feeder pot, on which the inner pot is supported.

[0016] This support bushing can either be formed as a single piece on the vibratory feeder pot or the inner pot, or it can be designed as an adapter ring that is supported on the bottom of the vibratory feeder pot on one side and forms a support for the inner pot on the other.

[0017] The relative positioning of the vibratory feeder and the inner pot, as well as the replacement of these components, is particularly easy if the feeding device is equipped with a central fixing screw arrangement via which the vibratory feeder and the inner pot are connected to a vibration drive.

[0018] The transport of the contact elements towards the interface is particularly precise when the alignment unit is assigned a singulation device, via which the contact elements are singulated and can then be fed to the interface or the inner interface.

[0019] Such a singulation device can, for example, have a receptacle for a contact element which can be moved towards the interface / inner interface by means of a transport device, in particular by means of a slide or cylinder.

[0020] The equipment-related effort can be further reduced if the inner interface of the inner pot and the interface of the vibrating feeder pot are each designed with a guide tube, over which the wire end sleeves are guided in the direction of the processing unit and which are preferably arranged at a parallel distance to each other and run approximately parallel to the axis of the inner pot and the vibrating feeder pot.

[0021] The guidance of the contact elements is particularly precise when end sections of the cams run approximately tangentially to the associated inner pot / vibrating conveying pot and are set at an acute angle to each other, thus further improving the compactness of the arrangement.

[0022] The external vibrating conveyor bowl can be designed with a relatively smooth circumferential wall or with a circumferential wall that is stepped according to the conveying path, so that ultimately the conveying path is formed by the circumferential wall design.

[0023] Preferred embodiments of the invention are explained in more detail below with reference to schematic drawings. These show: Fig. 1 a three-dimensional representation of a first embodiment of a feeding device according to the invention; Fig. 2 a top view of the feeding device according to Fig. 1; Fig. 3. a cut along the plane AA in Fig. 2; Fig. 4 a side view of the feeding device according to Fig. 1; Fig. 5 a three-dimensional representation of another embodiment of a feeding device; Fig. 6 a top view of the feeding device according to Fig. 5; Fig. 7. a cut along the cutting plane AA in Fig. 6; Fig. 8 a side view of the feeding device according to Fig. 5; Fig. 9 a three-dimensional representation of a third embodiment of a feeding device; Fig. 10 a top view of the feeding device according to Fig. 9; Fig. 11 a section along the plane AA in Fig. 10 and Fig. 12 a side view of the feeding device according to Fig. 9.

[0024] Fig. Figure 1 shows a first embodiment of a feeding device 1 designed according to the pot-in-pot concept of the invention, which is designed with a vibrating feed pot 2 in which an inner pot 4 is received, at least partially. In the illustrated embodiment, the vibrating feed pot 2 and the inner pot 4 are arranged coaxially to each other, with the diameter D of the vibrating feed pot 2 being significantly larger than the diameter d of the inner pot 4, so that an annular space remains between them, which defines a receiving space 6 of the vibrating feed pot 2 for contact elements, for example, wire end ferrules 10. The circumferential wall of the inner pot 4 with diameter d accordingly surrounds an inner receiving space 8 for further contact elements, for example, wire end ferrules 10'.

[0025] In this embodiment, both pots have a Fig. A vibration drive 11 (indicated by a dashed line) is assigned to the inner pot 4 and the vibrating feeder pot 2, so that the wire end ferrules 10, 10' received in the receiving chamber / inner receiving chamber 6, 8 are conveyed along a spiral conveyor track 12 of the vibrating feeder pot 2 or an inner conveyor track 14 of the inner pot 4 towards an alignment unit 16 or an internal alignment unit 18, respectively. The separated and aligned wire end ferrules 10 can then be fed to the processing unit, for example, a crimping machine of the type "Z+F Unic-LS®". In the case of the Fig. In the embodiment shown in Figure 1, this interface is provided with a guide tube 20 or inner guide tube 22, via which the respective wire end sleeve 10, 10' is conveyed in the direction of the crimping machine.

[0026] Fig. Figure 2 shows a top view of the feeding device 1 according to Fig. 1. This illustration shows the wire end ferrules 10 held in the annular receiving chamber 6 of the vibrating feeder 2 and the wire end ferrules 10' held in the approximately cylindrical inner receiving chamber 8 of the inner pot 4, which have, for example, different cross-sectional areas. When the vibratory drive 11 is not activated, the wire end ferrules 10, 10' rest on the bottom 24 of the receiving chamber 6 and the inner bottom 26 of the inner receiving chamber 8, respectively. When the vibratory drive 11 is activated, the wire end ferrules 10, 10' are conveyed along the associated spiral conveyor track 12 of the vibrating feeder 2 and along the spiral inner conveyor track 14 of the inner pot 4 from the respective bottom 24 / inner bottom 26 towards the associated alignment unit 16 and inner alignment unit 18, respectively.

[0027] At each conveyor exit 28 or inner conveyor exit 30, a guide cam 32 or an inner cam 34 is arranged, along which the wire end ferrules 10, 10' are conveyed to the actual alignment unit 32 or inner alignment unit 34, this conveyance being effected by the kinetic energy supplied by the vibratory drive 11. A width B, b of the cams 32, 34 corresponds to the diameter of the respective plastic collar 36, 36' of the wire end ferrules 10, 10', so that these are conveyed horizontally along the cam 32, 34. The actual positional orientation then takes place in the end area of ​​the respective guide track 32, inner track 34. In the illustrated embodiment, this positional orientation is achieved by providing an alignment slot 38 or inner alignment slot 40 in the base of the respective track 32, 34, the slot width S, s of which corresponds to the wire end ferrule diameter.

[0028] If the respective wire end sleeve 10, 10' is now conveyed into this slot area with the vibration drive 11 activated, the respective wire end sleeve 10, 10' positions itself in a vertical direction (perpendicular to the plane of the drawing). Fig. 2) on, wherein the respective sleeve 42, 42' tilts downwards due to the effect of gravity through the alignment slot 38 or the inner alignment slot 40, while the plastic collar 36, 36' with its larger cross-section remains in the guide track 32 or the inner track 34, so that the wire end sleeves 10, 10' in the vertical direction (perpendicular to the plane of the drawing in Fig. 2) are aligned, with the respective plastic collars 36, 36' - as in Fig. 2 indicated - pointing towards the viewer. This position is also quite clearly illustrated in Fig. Figure 1 illustrates this. In principle, it is irrelevant whether the wire end ferrules 10, 10' are oriented with their respective sleeves 42, 42' facing forward in the conveying direction or backward in the opposite direction, as gravity-induced tilting through the alignment slot 38 or the inner alignment slot 40 is ensured in any case. However, a suitable device can also be provided to ensure that the wire end ferrules 10, 10' are fed in the correct orientation (sleeve 42, 42' facing forward in the conveying direction). Additionally, a scraper or similar device can be provided to, for example, remove wire end ferrules 10, 10' that are not aligned in the horizontal position shown and return them to the associated receiving chamber 6 or inner receiving chamber 8.

[0029] In the Fig. In the position shown in Figure 1 at the end of the alignment slot 38 or the inner alignment slot 40, the wire end ferrules 10, 10' are then aligned with respect to the associated guide tube 20 or inner guide tube 22 and can then enter it, so that the aligned and separated wire end ferrules 10, 10' can be fed in a position-oriented manner to the interface of the crimping machine or other processing unit, whereby the required wire end ferrule 10, 10' is then fed to a crimping head of the crimping machine via suitable feeding devices.

[0030] The geometry of conveyor track 12 and the inner conveyor track 14 is clearly illustrated in the Fig. 3 shown, which makes a cut along the cutting plane AA in Fig. Figure 2 represents the following. Accordingly, as explained, the conveying track 12 and the inner conveying track 14 are formed on the inner circumferential wall of the vibrating conveying pot 2 and the inner pot 4, respectively. This illustration also shows the coaxial arrangement of the inner pot 4 with respect to the vibrating conveying pot 2. The bottom 24 of the vibrating conveying pot 2 and the inner bottom 26 of the inner pot 4 are inclined downwards towards the circumferential wall, so that the wire end sleeves 10, 10' are acted upon solely by gravity in the direction of the conveying track 12 and inner conveying track 14, respectively, which encompass the bottom 24 and the inner bottom 26. The inner bottom 26 of the inner pot 4 is supported on a support bushing 44, which projects from the bottom 24 of the vibrating conveying pot 2. The relative position of the vibrating conveying pot 2 with respect to the inner pot 4 and also with respect to the [unclear] is shown. Fig. 3 vibration drive not shown 11 (see Fig. 1) is ensured by a fixing screw arrangement 45, which can be easily loosened by hand to replace the vibratory feeder 2 or the inner pot 4. According to the invention, it is therefore possible to combine different variants of vibratory feeder hoppers / inner pots in order to process the respective wire end ferrule cross-section.

[0031] As particularly the presentation in Fig. 3, the inner pot 4 protrudes in the axial direction by approximately the dimension Ü beyond the upper circumferential edge of the vibrating feeder pot 2, so that the conveying planes of the guide cam 32 and the inner cam 34 or of the alignment unit 16 and the inner alignment unit 18 are offset from each other by this dimension Ü, so that this area in the illustration according to Fig. 2 is designed with a certain overlap, which further minimizes the external dimensions of the feeding device 1 according to the invention. This dimension Ü is also shown in the side view according to Fig. Figure 4 shows the height offset of the alignment unit 16 with reference to the inner alignment unit 18.

[0032] As especially the Fig. 1 and Fig. 2 is removable, the cams 32, 34 of the alignment unit 16 and the inner alignment unit 18 as well as the guide tubes 20, 22 attached to them are also arranged slightly offset to each other in the circumferential direction, so that the functional connection to the crimping machine or the other processing unit is simplified.

[0033] According to the Fig. 1 and Fig. 2 The areas of the alignment unit 16 and the inner alignment unit 18 projecting from the outer circumference of the vibrating feed pot 2 and the inner pot 4, respectively, are further provided with a widening segment-like end section 47, 49, which covers the respective unit 16, 18 to the outside and facilitates the connection to the crimping machine or other processing unit.

[0034] In all embodiments, it is preferred that the alignment unit 16 and the internal alignment unit 18, in particular their interfaces to the crimping machine, are arranged offset from each other both vertically in the direction of the axis of the feed pots and circumferentially.

[0035] To ensure the orientation of the inner pot 4 with respect to the vibrating feeder pot 2 and the vibration drive 11, suitable stops / guide elements can be provided, by which the predetermined angular position of these components relative to each other is determined, so that a precise connection to the crimping machine or other processing unit is ensured.

[0036] Fig. Figure 5 shows an embodiment of a feeding device according to the invention, which is also designed according to the pot-in-pot concept, wherein an alignment unit 16 or internal alignment unit 18 is provided in the area of ​​the interface to the crimping machine, to which a singulation device 46 or internal singulation device 48 is assigned, via which the singulated and aligned wire end sleeves 10, 10' can then be transferred to the interface of the crimping machine.

[0037] The alignment unit 16 and the internal alignment unit 18 are, similar to the previously described embodiment, again designed such that the wire end ferrules 10, 10' are moved from their horizontal position at the end of the conveyor track 12 and at the end of the inner conveyor track 14, respectively, into a vertical position, whereby the ferrules 42, 42' then each dip into an alignment slot 38 and an internal alignment slot 40, respectively, so that the wire end ferrules 10, 10' are brought into the vertical position as in the embodiment described above. As can be seen from the top view according to Fig. As can be seen in Figure 6, in this embodiment the guide track 32 and the inner track 34 with the alignment slot 38 and inner alignment slot 40 formed therein are angled approximately in a V-shape to support the singulation of the wire end ferrules 10, 10' when the vibration drive 11 is activated and, due to the angular design of the corresponding guide, to ensure that the wire end ferrules 10, 10' are guided closely together in the direction of the singulation device 46, 48. As can be seen in particular from the top view according to Figure 6. Fig. 6, each of which is removable, is equipped with a slide 50 or inner slide 52, which in its illustrated basic position each has a recess 54, 56 that sectionally encompasses the outer circumference of the foremost wire end sleeve 10, 10', so that when the slide 50, 52 is actuated, the respective wire end sleeve 10, 10' is conveyed in the direction of the interface of the crimping machine / processing unit, the transfer occurring, for example, in the vertical direction to the plane of the drawing. Fig. 2. The basic structure of the singulation device 46, 48 and the alignment unit 16 or the internal alignment unit 18 is known from the prior art according to the aforementioned publication DE 10 2017 102 618 A1, so that reference can be made to the relevant explanations with regard to further details.

[0038] During the Fig. In the variants shown in Figures 5 to 8, a deflector 62 or an internal deflector 64 is provided in the transfer area at the crimping machine, which ensures that the wire end ferrules 10, 10' are correctly positioned before being fed to the singulation device 46, 48. Such deflectors 62, 64 can be provided in all embodiments.

[0039] According to the representation in Fig. In this embodiment as well, the alignment unit 16 is arranged with reference to the inner alignment unit 18 and, accordingly, the singulation device 46 is arranged offset from each other by the dimension Ü with reference to the singulation device 48.

[0040] The inner pot 4 is supported, as in the previously described embodiment, by a support bushing 44, which is formed integrally with the base 24, with the positional fixation again being achieved by a fixing screw arrangement 45. Otherwise, the embodiment corresponds to the Fig. 5 to 8 essentially the one that is in the Fig. Figures 1 to 4 are shown, so that further explanations with reference to the descriptions of these figures are unnecessary.

[0041] Based on the Fig. Sections 9 to 12 describe an embodiment that has a somewhat simpler structure compared to the embodiments described above. This is particularly evident in the illustrations in the Fig. 9 and Fig. It can be seen from Figure 10 that in this embodiment, the alignment unit 16 and the internal alignment unit 18, respectively, with their widening segment-like end sections 47 and 49, are of a comparatively simple design. A common feature with the previously described embodiments is that the guide cam 32 and the internal cam 34 are each connected to the conveyor 12 and the internal conveyor 14 of the vibrating feeder 2 and the inner feeder 4, respectively, via a conveyor outlet 28 and an internal conveyor outlet 30, respectively, with the guide cam 32 and the internal cam 34 then each terminating approximately tangentially in an alignment slot 38 and an internal alignment slot 40, respectively. In the illustrated embodiment, these each terminate in an extension 66 or an inner extension 68, the clear width of which corresponds approximately to the diameter of the plastic collar 36, 36' of the wire end sleeves 10, 10'.In the area of ​​the slots 38, 40, the wire end sleeves 10, 10' are also aligned vertically in this embodiment, with the sleeves 42, 42' being pulled downwards through the respective slot area 38, 40 due to gravity (view according to . Fig. 10) swivel out. The wire end sleeve 10, 10' is then guided to the interface of the crimping machine or other processing unit via the respective extension 66, inner extension 68. This can in turn be done via a guide tube, a slide, another conveyor track or the like.

[0042] As can be seen particularly from the Fig. 11 and Fig. As can be seen from Figure 12, a further difference from the previously described embodiments is that the outer vibrating conveying pot 2 is not designed with an approximately cylindrical circumferential wall but with a spirally stepped circumferential wall 70, the geometry of which is designed such that the conveying track 12 is formed in the area of ​​the inner circumferential wall, along which the wire end sleeves 10 are routed from the bottom 24 towards the conveying track outlet 28 (see Figure 12). Fig. 10) are conveyed. In this embodiment, the axial projection Ü of the inner pot 4 with respect to the vibrating feed pot 2 is slightly larger than in the previously described embodiments, so that the axial offset of the alignment unit 16 with respect to the inner alignment unit 18 is correspondingly larger. In this variant as well, these components are arranged slightly offset from each other in the circumferential direction, so that the feeding or connection to the interface of the crimping machine is facilitated.

[0043] In this embodiment, a guide wall 78 or 80 is provided in the area of ​​the segment-like end section 47, 49, which laterally encompasses the alignment slot 38 or the inner alignment slot 40 and covers the plastic collars 36, 36' of the wire end sleeves 10, 10' projecting into this area.

[0044] In the illustrated embodiment, the base 24 of the vibrating feeder 2 is again inclined downwards towards the conveying track 12, with an adapter ring 74 resting on a support surface 72 of the base 24, on which the inner pot 4 is supported. For example, a receptacle 76 can be provided on the inner base 26, into which the end section of the adapter ring 74 engages, so that the inner pot 4 is centered with respect to the vibrating feeder 2. Positional fixation is again achieved by means of a fixing screw arrangement 45.

[0045] Furthermore, the embodiment corresponds to the Fig. 9 to 12 those according to the Fig. 1 to 8.

[0046] A feeding device for the position-defined feeding of contact elements to a processing unit is disclosed, wherein the feeding device has a vibrating feed pot and an inner pot enclosed by it for receiving different contact elements. Reference symbol list: 1 Feeding device 2 vibrating conveyor bowl 4 inner pots 6 Recording room 8 Interior shooting room 10 wire end ferrules 11 Vibration drive 12 Conveyor belt 14 Internal conveyor 16 alignment unit 18 Interior alignment unit 20 guide tube 22 Inner guide tube 24 floor 26 Interior floor 28 Conveyor exit 30 Inner conveyor exit 32 Leadership backdrop 34 Interior scenery 36 plastic collars 38 alignment slots 40 internal alignment slots 42 Sleeve 44 Support bushing 45 fixing screw arrangement 46 Singling device 47 segment-like end section 48 Single-person control device 49 segment-like end section 50 sliders 52 inner slides 54 Exclusion 56 Exclusion 62 deflectors 64 interior deflectors 66 Extension 68 Interior extension 70 Perimeter wall 72 support surface 74 Adapter ring 76 recording 78 Guide wall 80 guide wall QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2015 102 060 A1 [0002, 0004] DE 20 2014 105 634 U1

[0003] DE 10 2017 102 618 A1 [0003, 0037] EP 3 794 690 B1

[0004] CN 104 466 603 A

[0005] CN 104 300 340 A

[0005] EP 0 036 240 A1

[0005] CN 105 703 195 A

[0005] US 5,511,307 A

[0005]

Claims

[1] Feeding device for position-defined feeding of contact elements or the like to a processing unit, preferably a crimping machine, with a vibrating feeder (2), via which contact elements can be conveyed from a receiving chamber (6) along a conveying track (12) formed approximately spirally on an inner circumferential wall of the vibrating feeder (2) in the direction of an alignment unit (16) associated with the vibrating feeder (2), to which a guide cam (32) is assigned, along which the contact elements can be transported in a position-oriented manner in the direction of an interface to the processing unit, characterized bya vibratory feeder inner pot (4) which is preferably coaxially, at least partially encompassed by the vibratory feeder pot (2) and which is designed with an approximately spiral inner conveying track (14), an inner cam (34) of an inner alignment unit (18) and an inner interface which run or are positioned at a distance, partially in a radial or circumferential distance to the corresponding components of the vibratory feeder pot (2). [2] Feeding device according to claim 1, wherein the inner pot (4) with the inner alignment unit (18) and the inner cam (34) projects axially from the vibrating feed pot (2) with respect to the conveying track (12), wherein the inner alignment unit (18) and the inner interface are formed on this projecting area of ​​the inner pot (4). [3] Feeding device according to claim 1 or 2, wherein the interface and the inner interface are offset radially outwards relative to the respective pot circumference, in particular the circumference of the vibrating feed pot (2) and / or the interface and the inner interface are offset relative to each other approximately in the circumferential direction and in the axial direction of the vibrating feed pot (2) and / or the inner pot (4). [4] Feeding device according to one of the preceding claims, wherein a support bushing (44) is arranged approximately centrally on the bottom (24) of the vibrating feed pot (2), on which the inner pot (4) is supported. [5] Feeding device according to claim 4, wherein the support bushing (44) is designed as an adapter ring (74) which is supported on the one hand on the bottom (24) of the vibrating feed pot (2) and on the other hand supports the inner pot (4). [6] Feeding device according to one of the preceding claims, with a central fixing screw arrangement (45) by which the vibrating feed pot (2) and the inner pot (4) are connected to each other and / or to a vibration drive (11). [7] Feeding device according to one of the preceding claims, wherein the alignment unit (16) or the internal alignment unit (18) is associated with a singulation device (46, 48) by which the contact element can be fed singly to the interface or the internal interface. [8] Feeding device according to claim 7, wherein the singulation device (46, 48) has a slide (50) or an inner slide (52) which is preferably designed with a recess (54, 56) for a contact element and which is displaceable for transferring the contact element in the direction of the interface / inner interface. [9] Feeding device according to one of the preceding claims, wherein the inner interface and the interface are each provided with an inner guide tube (22) and a guide tube (20), respectively, which are arranged at a parallel distance from each other. [10] Feeding device according to one of the preceding claims, wherein end sections of the guide cam (32) and the inner cam (34) run approximately tangentially to the vibrating feed pot (2) and to the inner pot (4) respectively and are set at an acute angle to each other. [11] Feeding device according to one of the preceding claims, wherein the vibrating feed pot (2) has a circumferential wall (70) that is spirally stepped according to the conveying path (12).

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