CA3003939C - Feeding device for blank rings - Google Patents
Feeding device for blank rings Download PDFInfo
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- CA3003939C CA3003939C CA3003939A CA3003939A CA3003939C CA 3003939 C CA3003939 C CA 3003939C CA 3003939 A CA3003939 A CA 3003939A CA 3003939 A CA3003939 A CA 3003939A CA 3003939 C CA3003939 C CA 3003939C
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- Prior art keywords
- guide mandrel
- guide
- feeding device
- blank
- mandrel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/20—Storage arrangements; Piling or unpiling
- B21D43/24—Devices for removing sheets from a stack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/02—Dies; Accessories
- B44B5/024—Work piece loading or discharging arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G59/00—De-stacking of articles
- B65G59/06—De-stacking from the bottom of the stack
- B65G59/067—De-stacking from the bottom of the stack articles being separated substantially perpendicularly to the axis of the stack
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Feeding Of Articles To Conveyors (AREA)
- Specific Conveyance Elements (AREA)
- Automatic Assembly (AREA)
- De-Stacking Of Articles (AREA)
Abstract
The invention relates to a feeding device (21) to pick up a quantity of circular blank rings (15) at a pick-up point (22), to sort, and to deliver the same sporadically to a delivery point (23). A guide mandrel (34) extends along a longitudinal axis (L) from an upper end (35) to a lower end (36). The guide mandrel (34) is not directly held or guided by mechanical means. As a result, the guide mandrel (34) is arranged loosely in a freely movable manner, in particular along the longitudinal axis (L) thereof. In this way, the circular blank rings (15) can be threaded or plugged at the upper end (35) onto the guide mandrel (34), and can be stacked along the guide mandrel (34) coaxially to the longitudinal axis (L). At the lower end (36), the circular blank rings (15) can be removed from the guide mandrel (34) in that the latter is raised from the transport surface (24). The lifting can be done mechanically, magnetically, electromagnetically, by means of a fluid.
Description
= CA 03003939 2018-05-02 12 November 2015 SUPR P232 prem Keyword:
flying mandrel Feeding device for blank rings The present invention relates to a feeding device for blank rings. The feeding device is designed to bring a plu-rality of blank rings, which in particular are provided at a pick-up point in an unsorted manner, into a predefined arrangement, for example to line up said rings, and to de-liver the same to a delivery point in particular individu-ally.
A feeding device is known for example from DE 35 44 104 Al. There, a stacking magazine is arranged above a rotatable plate, from which coining pieces can be delivered individually into pockets of the plate. The stacking magazine is divided. The coining pieces, which are introduced from above, should be stacked flat on top of one another. To this end, at least part of the stacking maga-zine is vibrated relative to another, stationary part of the stacking magazine, such that the coining pieces are stacked flat on top of one another in the stacking maga-zine.
Within a stacking magazine of this kind, the supplied circular blank parts or coin parts require a certain amount of play in order to be able to drop downwardly. In the case of small parts, for example ring parts of a circular blank having a small radial ring width, this play can cause the ring parts to fall into one another, thus resulting in the feed being blocked.
The object of the present invention can therefore be considered that of creating a feeding device that transports the blank rings reliably from a pick-up point to a delivery point and delivers the same to the delivery point in a sorted manner.
According to an aspect of the present invention, there is provided a feeding device for feeding blank rings to a transport assembly, the feeding device comprising a guide mandrel for the blank rings, which extends along a longitudinal axis from an upper end to a lower end, an insertion channel, which is associated with the upper end of the guide mandrel and which is arranged coaxially with the longitudinal axis, a holding arrangement, which has at least one holding part with a holding opening arranged coaxially with the longitudinal axis, wherein an inner dimension of the holding opening is greater than an outer dimension of the guide mandrel, such that an annular channel for the blank rings is provided in the holding opening, wherein the guide mandrel is mounted movably along the longitudinal axis and a drive arrangement is provided and configured to raise the lower end of the guide mandrel from a transport surface by a field or a medium.
The feeding device is designed to receive for example an unsorted plurality of blank rings at a pick-up point, to sort, and to deliver the same to a delivery point, preferably individually. A
guide mandrel is arranged between the pick-up point and the delivery point. The guide mandrel extends along a longitudinal axis L from an upper end to a lower end. The longitudinal axis L is preferably arranged vertically, but can also be inclined at an acute angle to the vertical. In a preferred embodiment the guide mandrel is embodied cylindrically at least along a guide portion.
The cross-sectional shape of this guide portion can be circular-cylindrical, polygonal, or can also have any other shape as
flying mandrel Feeding device for blank rings The present invention relates to a feeding device for blank rings. The feeding device is designed to bring a plu-rality of blank rings, which in particular are provided at a pick-up point in an unsorted manner, into a predefined arrangement, for example to line up said rings, and to de-liver the same to a delivery point in particular individu-ally.
A feeding device is known for example from DE 35 44 104 Al. There, a stacking magazine is arranged above a rotatable plate, from which coining pieces can be delivered individually into pockets of the plate. The stacking magazine is divided. The coining pieces, which are introduced from above, should be stacked flat on top of one another. To this end, at least part of the stacking maga-zine is vibrated relative to another, stationary part of the stacking magazine, such that the coining pieces are stacked flat on top of one another in the stacking maga-zine.
Within a stacking magazine of this kind, the supplied circular blank parts or coin parts require a certain amount of play in order to be able to drop downwardly. In the case of small parts, for example ring parts of a circular blank having a small radial ring width, this play can cause the ring parts to fall into one another, thus resulting in the feed being blocked.
The object of the present invention can therefore be considered that of creating a feeding device that transports the blank rings reliably from a pick-up point to a delivery point and delivers the same to the delivery point in a sorted manner.
According to an aspect of the present invention, there is provided a feeding device for feeding blank rings to a transport assembly, the feeding device comprising a guide mandrel for the blank rings, which extends along a longitudinal axis from an upper end to a lower end, an insertion channel, which is associated with the upper end of the guide mandrel and which is arranged coaxially with the longitudinal axis, a holding arrangement, which has at least one holding part with a holding opening arranged coaxially with the longitudinal axis, wherein an inner dimension of the holding opening is greater than an outer dimension of the guide mandrel, such that an annular channel for the blank rings is provided in the holding opening, wherein the guide mandrel is mounted movably along the longitudinal axis and a drive arrangement is provided and configured to raise the lower end of the guide mandrel from a transport surface by a field or a medium.
The feeding device is designed to receive for example an unsorted plurality of blank rings at a pick-up point, to sort, and to deliver the same to a delivery point, preferably individually. A
guide mandrel is arranged between the pick-up point and the delivery point. The guide mandrel extends along a longitudinal axis L from an upper end to a lower end. The longitudinal axis L is preferably arranged vertically, but can also be inclined at an acute angle to the vertical. In a preferred embodiment the guide mandrel is embodied cylindrically at least along a guide portion.
The cross-sectional shape of this guide portion can be circular-cylindrical, polygonal, or can also have any other shape as
- 2 -Date Regue/Date Received 2022-12-20 desired, said shape for example being adapted to the inner shape of the blank rings. The guide mandrel is designed to lie against the inner edge of the blank rings that are to be transported, more specifically at a plurality of points distributed in the peripheral direction, such that the blank rings can slide along the guide mandrel. The sliding movement of the blank rings along the guide mandrel is preferably caused exclusively by the force of gravity and can be assisted optionally by pressing or sliding means.
An insertion channel is arranged at the pick-up point. The insertion channel is associated with the upper end of the guide mandrel. The insertion channel is arranged coaxially with the longitudinal axis, such that blank rings that fall through the insertion channel are threaded onto the guide mandrel so to speak and surround it.
The feeding device additionally has a holding arrangement. The holding arrangement has at least one holding part with a holding opening arranged coaxially with the longitudinal axis. The inner diameter of the holding opening is greater than the outer diameter of the guide mandrel. An annular channel for the blank rings is thus provided in the holding opening. The guide mandrel penetrates through the holding opening at least in part and preferably fully.
The guide mandrel is arranged in a movable manner along the longitudinal axis and in particular loosely. The guide mandrel is positioned in one exemplary embodiment in that the guide mandrel is supported on the holding part by way of one or more blank rings which are disposed in the holding opening. It is thus possible to apply the blank rings to the guide mandrel at the upper end and to remove the blank rings again at the lower end of the guide mandrel.
An insertion channel is arranged at the pick-up point. The insertion channel is associated with the upper end of the guide mandrel. The insertion channel is arranged coaxially with the longitudinal axis, such that blank rings that fall through the insertion channel are threaded onto the guide mandrel so to speak and surround it.
The feeding device additionally has a holding arrangement. The holding arrangement has at least one holding part with a holding opening arranged coaxially with the longitudinal axis. The inner diameter of the holding opening is greater than the outer diameter of the guide mandrel. An annular channel for the blank rings is thus provided in the holding opening. The guide mandrel penetrates through the holding opening at least in part and preferably fully.
The guide mandrel is arranged in a movable manner along the longitudinal axis and in particular loosely. The guide mandrel is positioned in one exemplary embodiment in that the guide mandrel is supported on the holding part by way of one or more blank rings which are disposed in the holding opening. It is thus possible to apply the blank rings to the guide mandrel at the upper end and to remove the blank rings again at the lower end of the guide mandrel.
- 3 -Date Regue/Date Received 2022-12-20 The guide mandrel is not directly mounted or guided by way of mechanical means or arrangements.
In some embodiments, it is preferred if the upper end of the guide mandrel protrudes into the insertion channel. It is thus ensured that the blank rings do not fall past the guide mandrel, and instead are threaded onto the guide mandrel. Here, an annular space remains between the upper end of the guide mandrel and the insertion channel for the blank rings.
-3a -Date Regue/Date Received 2022-12-20 = . CA 03003939 2018-05-02 In one exemplary embodiment the guide mandrel has a cylindrical guide portion, the outer dimension of which is smaller than the inner dimension of the blank rings by a guide play. As already explained, the guide portion can have a circular cross-section, a polygonal cross-section, or any other regular or irregular cross-sectional shape.
The guide portion can have a lateral surface which is used as a guide surface for the blank rings.
Alternatively to the cylindrical guide portion, the guide portion could also be formed by a plurality of ribs which protrude radially away from the longitudinal axis and which are distributed, preferably regularly, about the lon-gitudinal axis in the peripheral direction. A type of star-shaped arrangement thus results as considered in cross-section. The inner edge of the blank rings then lies against the corresponding edge of the ribs extending along the longitudinal axis and running for example parallel to the longitudinal axis. The guide surface for the blank rings is not fully closed as considered in the peripheral direction, but instead forms a plurality of guide points arranged at a distance from one another.
The upper end of the guide mandrel can have a smaller outer dimension than the guide portion of the guide man-drel. The outer dimension of the upper end is preferably smaller than the inner dimension of the blank rings at least by a factor of 2 or 3, such that the blank rings are threaded onto the guide mandrel at the upper end with a high level of certainty.
In some embodiments, it is preferred if the upper end of the guide mandrel protrudes into the insertion channel. It is thus ensured that the blank rings do not fall past the guide mandrel, and instead are threaded onto the guide mandrel. Here, an annular space remains between the upper end of the guide mandrel and the insertion channel for the blank rings.
-3a -Date Regue/Date Received 2022-12-20 = . CA 03003939 2018-05-02 In one exemplary embodiment the guide mandrel has a cylindrical guide portion, the outer dimension of which is smaller than the inner dimension of the blank rings by a guide play. As already explained, the guide portion can have a circular cross-section, a polygonal cross-section, or any other regular or irregular cross-sectional shape.
The guide portion can have a lateral surface which is used as a guide surface for the blank rings.
Alternatively to the cylindrical guide portion, the guide portion could also be formed by a plurality of ribs which protrude radially away from the longitudinal axis and which are distributed, preferably regularly, about the lon-gitudinal axis in the peripheral direction. A type of star-shaped arrangement thus results as considered in cross-section. The inner edge of the blank rings then lies against the corresponding edge of the ribs extending along the longitudinal axis and running for example parallel to the longitudinal axis. The guide surface for the blank rings is not fully closed as considered in the peripheral direction, but instead forms a plurality of guide points arranged at a distance from one another.
The upper end of the guide mandrel can have a smaller outer dimension than the guide portion of the guide man-drel. The outer dimension of the upper end is preferably smaller than the inner dimension of the blank rings at least by a factor of 2 or 3, such that the blank rings are threaded onto the guide mandrel at the upper end with a high level of certainty.
-4-In one exemplary embodiment the guide mandrel has a tapering portion, for example a conical portion. The dimension of this tapering portion decreases in the direction of the upper end. This tapering portion can directly adjoin the upper end or can belong to the upper end. The tapering portion can preferably directly adjoin the guide portion.
In some embodiments, the holding arrangement preferably has a filling tube. The filling tube surrounds an axial portion of the guide mandrel. In one exemplary embodiment this axial portion of the guide mandrel which is surrounded by the filling tube includes at least part of the guide portion. The filling tube is preferably arranged closer to the lower end of the guide mandrel than to the upper end.
The holding arrangement in one exemplary embodiment can have a centring sleeve. The centring sleeve surrounds the guide mandrel preferably coaxially with the longitudinal axis thereof. The centring sleeve is arranged adjacently to the lower end of the guide mandrel and is designed to position the blank rings in a predefined position at the delivery point of the feeding device.
In a preferred embodiment the centring sleeve has a centring channel. The centring channel extends along the guide mandrel and preferably coaxially with the longitudinal axis of the guide mandrel downwardly in the direction of the delivery point and in so doing tapers at least at a plurality of peripheral points. For example, the centring channel can have a conical shape if the outer contour of the blank rings is circular. The centring channel can also have a different cross-sectional shape, which for example can correspond to the outer contour of the blank rings.
In some embodiments, the holding arrangement preferably has a filling tube. The filling tube surrounds an axial portion of the guide mandrel. In one exemplary embodiment this axial portion of the guide mandrel which is surrounded by the filling tube includes at least part of the guide portion. The filling tube is preferably arranged closer to the lower end of the guide mandrel than to the upper end.
The holding arrangement in one exemplary embodiment can have a centring sleeve. The centring sleeve surrounds the guide mandrel preferably coaxially with the longitudinal axis thereof. The centring sleeve is arranged adjacently to the lower end of the guide mandrel and is designed to position the blank rings in a predefined position at the delivery point of the feeding device.
In a preferred embodiment the centring sleeve has a centring channel. The centring channel extends along the guide mandrel and preferably coaxially with the longitudinal axis of the guide mandrel downwardly in the direction of the delivery point and in so doing tapers at least at a plurality of peripheral points. For example, the centring channel can have a conical shape if the outer contour of the blank rings is circular. The centring channel can also have a different cross-sectional shape, which for example can correspond to the outer contour of the blank rings.
- 5 -Date Regue/Date Received 2022-12-20 = CA 03003939 2018-05-02 However, it is sufficient that the blank rings lie against the centring sleeve at a plurality of peripheral points within the centring channel and are thus positioned radial-ly relative to the channel axis.
It is advantageous if the lower end of the centring channel associated with the delivery point has an inner di-mension that is greater than the outer dimension of the blank rings by a predefined centring play.
In an advantageous embodiment a tapering end portion is provided at the lower end of the guide mandrel. This ta-pering end portion can be formed for example by a chamfer and/or a radius at the end portion of the guide mandrel.
The outer surface of the guide mandrel can extend in a straight line or in a curved manner along the end portion as considered in a longitudinal section along the longitu-dinal axis, such that the radial dimension decreases in the direction of the lower end. As considered in the direction of the longitudinal axis, the end portion has a dimension that is at least as great as the thickness of a blank ring.
In one exemplary embodiment the guide mandrel is sup-ported with its lower end on a transport surface for the blank rings at the delivery point. The blank rings slide along the transport surface in the event of a transport movement. By means of a revolving plate, slider or the like, the blank ring can be moved away beneath the guide mandrel, which is arranged movably along its longitudinal axis. The guide mandrel can be moved by contact with the removed blank ring or by way of a drive arrangement.
It is advantageous if the lower end of the centring channel associated with the delivery point has an inner di-mension that is greater than the outer dimension of the blank rings by a predefined centring play.
In an advantageous embodiment a tapering end portion is provided at the lower end of the guide mandrel. This ta-pering end portion can be formed for example by a chamfer and/or a radius at the end portion of the guide mandrel.
The outer surface of the guide mandrel can extend in a straight line or in a curved manner along the end portion as considered in a longitudinal section along the longitu-dinal axis, such that the radial dimension decreases in the direction of the lower end. As considered in the direction of the longitudinal axis, the end portion has a dimension that is at least as great as the thickness of a blank ring.
In one exemplary embodiment the guide mandrel is sup-ported with its lower end on a transport surface for the blank rings at the delivery point. The blank rings slide along the transport surface in the event of a transport movement. By means of a revolving plate, slider or the like, the blank ring can be moved away beneath the guide mandrel, which is arranged movably along its longitudinal axis. The guide mandrel can be moved by contact with the removed blank ring or by way of a drive arrangement.
-6-It is also advantageous to move the guide mandrel along its longitudinal axis L by way of a drive arrangement or to raise the guide mandrel permanently from a transport surface at the delivery point. For example, the drive arrangement can act on the guide mandrel without mechanical means by way of a bodiless medium or field. In one exemplary embodiment the guide mandrel can be held at a distance from the transport surface in a magnetic field or can be raised from the transport surface in order to deliver a blank ring.
In another exemplary embodiment the guide mandrel can be held at a distance from the transport surface by means of compressed air or can be raised from the transport surface for delivery of a blank ring.
The guide mandrel in the preferred exemplary embodiments is supported indirectly in the at least one holding opening on the holding part by way of one or more blank rings and is otherwise arranged so as to be movable along its longitudinal axis loosely.
Advantageous embodiments of the feeding device will become clear from the description and the drawings. Preferred exemplary embodiments of the feeding device will be explained in detail hereinafter with reference to the accompanying drawing, in which:
Fig. 1 shows a schematic block diagram-like illustration of a transport arrangement having a feeding device, Fig. 2 shows an exemplary embodiment of a circular blank consisting of two blank rings and a circular blank core,
In another exemplary embodiment the guide mandrel can be held at a distance from the transport surface by means of compressed air or can be raised from the transport surface for delivery of a blank ring.
The guide mandrel in the preferred exemplary embodiments is supported indirectly in the at least one holding opening on the holding part by way of one or more blank rings and is otherwise arranged so as to be movable along its longitudinal axis loosely.
Advantageous embodiments of the feeding device will become clear from the description and the drawings. Preferred exemplary embodiments of the feeding device will be explained in detail hereinafter with reference to the accompanying drawing, in which:
Fig. 1 shows a schematic block diagram-like illustration of a transport arrangement having a feeding device, Fig. 2 shows an exemplary embodiment of a circular blank consisting of two blank rings and a circular blank core,
- 7 -Date Regue/Date Received 2022-12-20 . . . CA 03003939 2018-05-02 Fig. 3 shows a plan view of a coin coined from the components according to Fig. 2, Fig. 4 shows the coin from Fig. 3 in a cross-section, Figures 5 to 8 each show exemplary embodiments of a feeding device in a schematic longitudinal section.
-8-, =
Fig. 1 shows an assembly 10 comprising a transport ar-rangement 11. The transport arrangement 11 in the exemplary embodiment has two revolving plates 12, which each can be driven about an axis of revolution R. The two axes of revo-lution R are oriented parallel to one another. Each revolv-ing plate 12 can be driven about its axis of revolution R
by a revolver drive (not shown). The revolving plates 12 here perform an incremental step movement. The incremental step angle is adapted to the number of pockets 13 arranged in the outer peripheral region of each revolving plate 12 in a manner distributed uniformly in the peripheral direc-tion about the particular axis of revolution R. The pockets 13 are each used to receive a circular blank part 14 or a circular blank formed of a plurality of circular blank parts 14. A circular blank 14 can be formed by a blank ring 15 or a circular blank core 16. Each circular blank con-sists of at least one blank ring 15 and a circular blank core 16. In the exemplary embodiment described here, two blank rings 15 and a circular blank core 16 are provided in order to form the circular blank.
The circular blank can also be referred to as a coin blank. The circular blank is transported by way of the transport arrangement 11 to a coining station 17 comprising a coining press and is coined there. The coined coin is shown schematically in Figures 3 and 4. Here, the individu-al circular blank parts 14 are non-positively engaged with one another and in accordance with the example are addi-tionally positively engaged with one another.
In order to feed the circular blank parts 14 to an as-sociated revolving plate 12, feeding stations 20 are pro-vided. One of the circular blank parts 14 is fed at each
Fig. 1 shows an assembly 10 comprising a transport ar-rangement 11. The transport arrangement 11 in the exemplary embodiment has two revolving plates 12, which each can be driven about an axis of revolution R. The two axes of revo-lution R are oriented parallel to one another. Each revolv-ing plate 12 can be driven about its axis of revolution R
by a revolver drive (not shown). The revolving plates 12 here perform an incremental step movement. The incremental step angle is adapted to the number of pockets 13 arranged in the outer peripheral region of each revolving plate 12 in a manner distributed uniformly in the peripheral direc-tion about the particular axis of revolution R. The pockets 13 are each used to receive a circular blank part 14 or a circular blank formed of a plurality of circular blank parts 14. A circular blank 14 can be formed by a blank ring 15 or a circular blank core 16. Each circular blank con-sists of at least one blank ring 15 and a circular blank core 16. In the exemplary embodiment described here, two blank rings 15 and a circular blank core 16 are provided in order to form the circular blank.
The circular blank can also be referred to as a coin blank. The circular blank is transported by way of the transport arrangement 11 to a coining station 17 comprising a coining press and is coined there. The coined coin is shown schematically in Figures 3 and 4. Here, the individu-al circular blank parts 14 are non-positively engaged with one another and in accordance with the example are addi-tionally positively engaged with one another.
In order to feed the circular blank parts 14 to an as-sociated revolving plate 12, feeding stations 20 are pro-vided. One of the circular blank parts 14 is fed at each
-9-feeding station 20. In the exemplary embodiment described here, three feeding stations 20 are provided accordingly for the two blank rings 15 and the circular blank core 16.
At each feeding station 20, a blank ring 15 or circular blank core 16 is inserted into a pocket 13 of the relevant revolving plate 12 arranged at the feeding station 20. The revolving plate 12 is then rotated further by an incremen-tal step movement, such that the next pocket 13 is associ-ated with the feeding station 20 and the next circular blank part 14 can be inserted into the associated pocket 13. Before the coining station 17, a circular blank formed of the (in accordance with the example) three circular blank parts 14 is thus disposed in each pocket 13, and the coin shown in Figures 3 and 4 is then coined herefrom.
A feeding device 21 is provided at each feeding sta-tion 20 for feeding a blank ring 15, and various exemplary embodiments of said feeding device are shown in Figures 5 to 8. The feeding device 21 is designed to bring the plu-rality of blank rings 15, arriving at a pick-up point 22 in an unsorted manner, into a predefined arrangement or order and to deliver the same to a delivery point 23 individual-ly. The pick-up point 22 can also be arranged downstream of an arrangement, such as a funnel-shaped guide, such that the blank rings 15 arrive at the pick-up point 22 in a row one after the other. The delivery point 23 is associated with the revolving wheel 12. The feeding device 21 delivers the blank rings 15 individually into the respective associ-ated pockets 13 of the revolving plate 12. As can be seen from Figures 5 to 8, the revolving plate 12 moves along a transport surface 24, on which the blank rings lie and slide along during transport. The transport surface 24 is shown merely in a considerably simplified manner in Figures
At each feeding station 20, a blank ring 15 or circular blank core 16 is inserted into a pocket 13 of the relevant revolving plate 12 arranged at the feeding station 20. The revolving plate 12 is then rotated further by an incremen-tal step movement, such that the next pocket 13 is associ-ated with the feeding station 20 and the next circular blank part 14 can be inserted into the associated pocket 13. Before the coining station 17, a circular blank formed of the (in accordance with the example) three circular blank parts 14 is thus disposed in each pocket 13, and the coin shown in Figures 3 and 4 is then coined herefrom.
A feeding device 21 is provided at each feeding sta-tion 20 for feeding a blank ring 15, and various exemplary embodiments of said feeding device are shown in Figures 5 to 8. The feeding device 21 is designed to bring the plu-rality of blank rings 15, arriving at a pick-up point 22 in an unsorted manner, into a predefined arrangement or order and to deliver the same to a delivery point 23 individual-ly. The pick-up point 22 can also be arranged downstream of an arrangement, such as a funnel-shaped guide, such that the blank rings 15 arrive at the pick-up point 22 in a row one after the other. The delivery point 23 is associated with the revolving wheel 12. The feeding device 21 delivers the blank rings 15 individually into the respective associ-ated pockets 13 of the revolving plate 12. As can be seen from Figures 5 to 8, the revolving plate 12 moves along a transport surface 24, on which the blank rings lie and slide along during transport. The transport surface 24 is shown merely in a considerably simplified manner in Figures
-10-= CA 03003939 2018-05-02 =
to 8. It can be limited to an annular surface along the path of the pockets 13.
Fig. 5 shows a first exemplary embodiment of the feed-ing device 21. An insertion part 27 is arranged at the pick-up point 22. The insertion part 27 is arranged on a subsurface in a stationary manner by way of a machine frame. The blank rings 15 arrive at the insertion part 27 for example in an unsorted manner or in a row and at the insertion part 27 are guided into a groove-like insertion track 28 in the insertion part 27 by means of a funnel or the like. The insertion track 28 can be inclined relative to the horizontal in the direction of an insertion channel 29 so as to bring about or support the transport of the blank rings 15. The blank rings 15 can also be transported along the insertion track 28 by arrangements (not shown) that slide the blank rings 15 in the direction of the in-sertion channel 29. The insertion channel 29 is formed in a tubular connecting piece 30 of the insertion part 27 and in the exemplary embodiment extends coaxially with a working axis A. The working axis A is preferably oriented vertical-ly or is inclined relative to the vertical merely by an acute angle of at most 15 . The length of the insertion channel 29 can vary. The connecting piece 30 can thus have an accordingly adapted length or alternatively can be omit-ted.
In the exemplary embodiment shown here, blank rings 15 having a circular outer contour and a circular inner con-tour are fed. The contours of the components of the feeding device 21 guiding the blank rings 15 therefore likewise have a circular cross-sectional shape. Reference is there-fore made to 'diameters' in conjunction with the exemplary
to 8. It can be limited to an annular surface along the path of the pockets 13.
Fig. 5 shows a first exemplary embodiment of the feed-ing device 21. An insertion part 27 is arranged at the pick-up point 22. The insertion part 27 is arranged on a subsurface in a stationary manner by way of a machine frame. The blank rings 15 arrive at the insertion part 27 for example in an unsorted manner or in a row and at the insertion part 27 are guided into a groove-like insertion track 28 in the insertion part 27 by means of a funnel or the like. The insertion track 28 can be inclined relative to the horizontal in the direction of an insertion channel 29 so as to bring about or support the transport of the blank rings 15. The blank rings 15 can also be transported along the insertion track 28 by arrangements (not shown) that slide the blank rings 15 in the direction of the in-sertion channel 29. The insertion channel 29 is formed in a tubular connecting piece 30 of the insertion part 27 and in the exemplary embodiment extends coaxially with a working axis A. The working axis A is preferably oriented vertical-ly or is inclined relative to the vertical merely by an acute angle of at most 15 . The length of the insertion channel 29 can vary. The connecting piece 30 can thus have an accordingly adapted length or alternatively can be omit-ted.
In the exemplary embodiment shown here, blank rings 15 having a circular outer contour and a circular inner con-tour are fed. The contours of the components of the feeding device 21 guiding the blank rings 15 therefore likewise have a circular cross-sectional shape. Reference is there-fore made to 'diameters' in conjunction with the exemplary
-11-embodiment according to Fig. 5. In the case of corrugated, polygonal, or other contours of the blank rings, suitably adapted outer or inner dimensions of the components of the feeding devices 21 can be provided, which will be explained in further detail hereinafter in conjunction with Fig. 8.
The insertion channel 29 has an inner diameter that is greater than the outer diameter of the blank rings 15. It is thus ensured that the blank rings 15 can drop downwardly through the insertion channel 29 without causing a block-age.
The feeding device 21 has a guide mandrel 34. The guide mandrel 34 extends along a longitudinal axis L from an upper end 35 to a lower end 36. The longitudinal axis L
is preferably parallel to the working axis A or inclined with at most an angle of inclination of up to 50, 100 or 15 relative to said working axis, which is defined by the insertion channel 29. The guide mandrel 34 is movable rela-tive to the insertion channel 29 or the insertion part 27, in particular in the direction of its longitudinal axis L
or in the direction of the working axis A. The upper end 35 is arranged within the insertion channel 29 in the exempla-ry embodiment, such that an axial portion of the guide man-drel 34 that borders the upper end 35 is disposed within the insertion channel 29. The lower end 36 is associated with the delivery point 23 and in the exemplary embodiment according to Fig. 5 is supported on the transport surface 24 if a pocket 13 of the revolving plate 12 is associated with the feeding device 21 and the longitudinal axis L of the guide mandrel 34 protrudes approximately centrally into the pocket 13.
The insertion channel 29 has an inner diameter that is greater than the outer diameter of the blank rings 15. It is thus ensured that the blank rings 15 can drop downwardly through the insertion channel 29 without causing a block-age.
The feeding device 21 has a guide mandrel 34. The guide mandrel 34 extends along a longitudinal axis L from an upper end 35 to a lower end 36. The longitudinal axis L
is preferably parallel to the working axis A or inclined with at most an angle of inclination of up to 50, 100 or 15 relative to said working axis, which is defined by the insertion channel 29. The guide mandrel 34 is movable rela-tive to the insertion channel 29 or the insertion part 27, in particular in the direction of its longitudinal axis L
or in the direction of the working axis A. The upper end 35 is arranged within the insertion channel 29 in the exempla-ry embodiment, such that an axial portion of the guide man-drel 34 that borders the upper end 35 is disposed within the insertion channel 29. The lower end 36 is associated with the delivery point 23 and in the exemplary embodiment according to Fig. 5 is supported on the transport surface 24 if a pocket 13 of the revolving plate 12 is associated with the feeding device 21 and the longitudinal axis L of the guide mandrel 34 protrudes approximately centrally into the pocket 13.
-12-.
. CA 03003939 2018-05-02 = , The guide mandrel 34 has a guide portion 37, the lat-eral surface of which forms a guide surface 38. The length of the guide portion 37 along the longitudinal axis L is greater than that of the other portions of the guide man-drel 34. The guide portion 37 in the exemplary embodiment has a cylindrical design and in particular a circular cross-section.
The outer dimension, and in accordance with the exam-ple the outer diameter, of the guide portion 37 is smaller than the inner dimension, and in accordance with the exam-ple the inner diameter, of the blank ring 15 by a guide play. The blank rings 15 can therefore slide along the guide surface 38 smoothly and in a manner oriented approxi-mately coaxially with the longitudinal axis L of the guide mandrel 34. The guide play for example can be at most 1.0 mm to 1.5 mm or up to 2.0 mm.
The guide portion 37 is adjoined by a tapering por-tion, and in accordance with the example a conical portion 39. As a result of the conical portion 39, the outer diame-ter of the guide mandrel 34 reduces starting from the guide portion 37 in the direction of the upper end 35. The coni-cal portion 39 can extend as far as the upper end 35. In the exemplary embodiment described here, a further cylin-drical portion is provided adjacently to the upper end 35 and adjoins the conical portion 39. The outer diameter at the upper end 35 is smaller, and preferably smaller at least by a factor of 2 to 3, than the outer diameter of the guide portion 37. It is thus ensured that the blank rings 15 are threaded onto the guide mandrel 34 within the inser-tion channel 29 and cannot strike against the upper end 35 . -13-, =
and become wedged or blocked within the insertion channel 29.
In a modification of the presented exemplary embodi-ment, the guide mandrel can also taper to a point conically and/or in a convexly curved manner and/or in a spherical dome-like manner at the upper end 35. It can be formed without a flat end face at the upper end 35.
Adjacently to the lower end 36, the guide mandrel 34 has an end portion 40, which tapers in the direction of the lower end 36. The length of this end portion 40 along the longitudinal axis L is at least as great as the thickness or size of a blank ring 15 along the longitudinal axis L.
The tapering end portion 40 for example can have a dome shape and/or a cone shape. As considered in the longi-tudinal section along the longitudinal axis L, the lateral surface can extend in a straight line or in a convexly curved manner from the guide portion 37 to the lower end 36, and in so doing the outer diameter of the guide mandrel 34 can reduce.
A holding arrangement 44 is arranged on the transport surface 24. The holding arrangement 44 has a holding part 45 with a cylindrical holding opening 46. The holding open-ing 46 is oriented coaxially with the working axis A. The connecting piece 30 with the insertion channel 29 is ar-ranged in the direction of the working axis A at a distance from the holding part 45 with the holding opening 46.
The inner diameter of the holding opening 45 is great-er than the outer diameter of the guide mandrel 34 and in = CA 03003939 2018-05-02 =
particular of the guide portion 37, such that an annular channel 47 for the blank rings 15 is formed in the holding opening 46. The inner diameter of the holding opening 46 is greater than the outer diameter of the blank rings 15.
An axial portion 48 of the guide mandrel 34, which in accordance with the example is formed by a region of the guide portion 37, runs within the holding opening 46. The holding part 45 is formed in accordance with the example by a filling tube 49. In addition to the filling tube 49, the holding device 44 can optionally also have further holding parts. The holding parts can be arranged directly adjacent-ly along the working axis A or can be arranged offset from one another at a distance.
The filling tube 49 or the holding part 45 is adjoined in the exemplary embodiment of the holding arrangement 44 by a centring sleeve 52. The centring sleeve 52 has a cen-tring channel 53, which is oriented coaxially with the working axis A. The centring channel 53 extends fully through the centring sleeve 52 from an upper opening 54 to a lower opening 55. The centring channel 53 tapers at least along at least a portion between the upper opening 54 and the lower opening 55. In the exemplary embodiment the upper opening 54 is adjoined by a conical portion, which transi-tions into a cylindrical portion of the centring channel 53, which adjoins the lower opening 55. In the region of the lower opening 55, the inner diameter of the centring diameter 53 is greater than the outer diameter of the blank rings 15 merely by a small centring play, such that these blank rings 15 are positioned coaxially with the working axis A with the predefined, necessary precision.
' CA 03003939 2018-05-02 The filling tube 49 and the centring sleeve 52 are held jointly by a holding body 56 of the holding arrange-ment 44 and in accordance with the example are arranged on the transport surface 24.
The feeding device 21 according to Fig. 5 operates as follows:
The blank rings 15 are fed in a sorted or unsorted manner at the pick-up point 22 and enter the insertion track 28, and slide out therefrom into the insertion chan-nel 29. In the insertion channel 29, the blank rings 15 drop downwardly and in so doing are threaded onto the guide mandrel 34. The blank rings 15 thus surround the longitudi-nal axis L of the guide mandrel 34 substantially coaxially.
They can slide downwardly along the guide mandrel 34. As shown in Fig. 5, a stack of blank rings 15 thus forms around the guide mandrel 34. Adjacent blank rings 15 lie against one another. The blank ring 15 arranged adjacently to the lower end 36 lies on the transport surface 24 in the pocket 13 associated with the feeding device 21. The guide mandrel 34 is supported on the transport surface 24. By way of the incremental step movement of the revolving plate 12, the blank ring 15 is also moved along in the pocket 13 to-gether with the revolving plate 12 and comes into contact with the end portion 40 of the guide mandrel 34. By way of the shape of the end portion 40, which tapers in the direc-tion of the lower end 36, the guide mandrel 34, with con-tinued movement of the blank ring 15 in the pocket 13, moves upwardly along its longitudinal axis L and releases the lowermost blank ring 15. As soon as the next pocket ar-rives beneath the guide mandrel 34, the guide mandrel 34 engages again in the next pocket 13 by means of its end portion 40. If this pocket 13 is arranged beneath the stack of blank rings 15, the blank ring 15 which is now the low-ermost ring is pushed into the pocket 13. The situation as shown in Fig. 5 is thus produced again. With the next in-cremental step movement of the revolving plate, the lower-most blank ring 15 moves away from the feeding device 20 or away from the feeding station 20 as described above, and the described process sequence is repeated.
The guide mandrel 34 is not directly mechanically guided or held in the feeding device 21. It is indirectly supported on the centring sleeve 52 or on the holding part 45 by way of a blank ring, and in accordance with the exam-ple a plurality of blank rings 15. In accordance with the play provided there, the longitudinal axis L of the guide mandrel 34 is oriented approximately along the working axis A, wherein the longitudinal axis L can run at a slight in-cline to, and/or offset in relation to the working axis A.
The guide mandrel 34 is therefore arranged loosely so to speak in a movable manner along its longitudinal axis L. It is thus possible to thread or slide blank rings onto the guide mandrel 34 at the pick-up point 22 and to remove the same from the guide mandrel 34 and transport them on fur-ther at the delivery point 23.
The exemplary embodiment of the feeding device 21 shown in Fig. 8 corresponds substantially to the exemplary embodiment shown in Fig. 5. The difference lies in the fact that, in the exemplary embodiment according to Fig. 8, the guide portion 37 of the guide mandrel 37 does not have a circular cross-section. It is cylindrical and for example can have a polygonal cross-section or a cross-section with a corrugated contour, which is shown in Fig. 8 by the exem-. = CA 03003939 2018-05-02 , plary cross-sectional images (line of section X-X). Outside the guide portion 37, the guide mandrel 34 in the exemplary embodiment has a circular cross-section all over and for example can have dome-like portions, conical portions, or circular-cylindrical portions. Otherwise, the exemplary em-bodiment according to Fig. 8 is identical to the exemplary embodiment according to Fig. 5, and therefore reference can be made to the explanations provided above.
In the exemplary embodiment shown in Fig. 8, the cross-sectional shapes of the centring channel 53 and/or of the insertion channel 29 and/or of the holding opening 46 can also be adapted to the outer contour of the blank rings 15, and for example can match the outer contour of the blank rings 15, apart from any play necessary.
Each of Fig. 6 and 7 shows an exemplary embodiment in which a drive arrangement is provided in order to raise the guide mandrel 34 from the transport surface 24 at the de-livery point 23 temporarily or permanently. The drive ar-rangement for this purpose can use compressed air, a mag-netic field, or another bodiless, non-mechanical means or medium.
Fig. 6 shows a modified exemplary embodiment of the feeding device 21. In contrast to the exemplary embodiment from Fig. 5, the lower end 36 of the guide mandrel 34 is not adjoined by a tapering end portion 40. In accordance with the example the guide portion 37 runs as far as the lower end 36. The lower end 36, in contrast to the flat end face, can also have a different form, for example can have a conicity or a dome shape. A blind bore 60 is preferably formed in the lower end 36 and for example is oriented , along the longitudinal axis L and opens out at the lower end 36.
A compressed air channel 61 opens out along the work-ing axis A at the transport surface 24 at the delivery point 23. Compressed air P can be expelled permanently or in bursts through the compressed air channel 61. The com-pressed air P impinges on the lower end 36 and in accord-ance with the example penetrates the blind bore 60. The guide mandrel 34 is thus raised from the transport surface 24. The lowermost blank ring 15, which is disposed in the pocket 13, can be transported away by the revolving plate 12 when the guide mandrel 34 is raised at the delivery point 23.
The compressed air P can be expelled permanently or only when an incremental step movement is actuated by the revolving plate. The expulsion of compressed air is in any case interrupted by the revolving plate 12 if there is no pocket 13 disposed above the compressed air channel 61, but instead a closed surface of the revolving plate 12. During this time, the compressed air expulsion can be interrupted in order to minimise the compressed air consumption.
In this exemplary embodiment there is no contact at the delivery point 23 between the guide mandrel 34 and the blank ring 15 to be discharged that leads to the movement of the guide mandrel 34 along its longitudinal axis L. Ra-ther, the guide mandrel 34 is moved away from the transport surface 24 by a bodiless medium, and in accordance with the example compressed air.
= = CA 03003939 2018-05-02 A further modified exemplary embodiment is shown in Fig. 7. In accordance with the exemplary embodiment accord-ing to Fig. 6, the guide mandrel 34 is raised from the transport surface 24 without mechanical influence and is moved along the longitudinal axis L. Instead of compressed air P. a magnetic field is used in the exemplary embodiment according to Fig. 7. To this end, a permanent magnet 65 is inserted into the guide mandrel 34 adjacently to the lower end 36. In the exemplary embodiment the north pole N of the permanent magnet 65 is associated with the lower end 36.
The permanent magnet 65 is oriented along the longitudinal axis L and directly adjoins the lower end 36. The lower end 36, in contrast to the flat end face, can also have a dif-ferent form, for example can have a conicity or a dome shape.
A further permanent magnet 66 is arranged at the de-livery point 23 directly adjacently to the transport sur-face 24 along the working axis A, the north pole N of which further permanent magnet is arranged facing towards the lower end 36. The magnetic fields of the two permanent mag-nets 65, 66 repel one another, such that the guide mandrel 34 is pushed away from the transport surface 24. A gap thus remains between the lower end 36 and the transport surface 24, by means of which gap the lowermost blank ring 15 can be transported away at the delivery point 23.
Instead of the permanent magnet 66, an electromagnet could also be used. Similarly to the embodiment with the compressed air P according to Fig. 6, the magnetic field of the electromagnet can be generated permanently or only when it is necessary to raise the guide mandrel 34 from the = CA 03003939 2018-05-02 transport surface 24 as a blank ring 15 is transported away.
It is understood that the magnetic field could also be oriented in a reversed manner in a modification of the il-lustration according to Fig. 7. The two permanent magnets 65, 66 could thus be arranged in each case in a rotated manner, so that the two south poles S are arranged directly adjacently and repel one another.
The invention relates to a feeding device 21 to pick up a sorted or unsorted quantity of blank rings 15 at a pick-up point 22, to sort, and to deliver the same sporadi-cally to a delivery point 23. To this end, the feeding de-vice 21, at the pick-up point 22 has an insertion channel 29, which is arranged coaxially with a working axis A. A
transport surface 24 is provided at the delivery point 23, along which transport surface the blank rings 15 are dis-charged sporadically. The feeding device 21 has a holding arrangement 44 with a holding part 45, which delimits a preferably cylindrical holding opening 46. The holding opening 46 is oriented coaxially with the working axis A. A
guide mandrel 34 extends along a longitudinal axis L from an upper end 35, which is associated with the pick-up point 22, to a lower end 36, which is associated with the deliv-ery point 23. The longitudinal axis L is oriented substan-tially along the working axis A. The guide mandrel 34 is not directly held or guided by mechanical means. It is sup-ported in the holding opening 46 on the holding part 45 and/or in the insertion channel 29 by way of one or more blank rings 15, which surround the guide mandrel 34 coaxi-ally. The guide mandrel 34 is thus arranged loosely in a freely movable manner, in particular along the longitudinal = CA 03003939 2018-05-02 axis L thereof. In this way, the blank rings 15 at the up-per end 35 can be threaded or placed on the guide mandrel 34 and can be stacked along the guide mandrel 34 coaxially with the longitudinal axis L. The blank rings 15 can be re-moved from the guide mandrel 34 at the delivery point 23 in that the guide mandrel is raised from the transport surface 24. The lifting can be done mechanically and/or magnetical-ly and/or electromagnetically and/or by means of a fluid, in particular compressed air P.
= = CA 03003939 2018-05-02 List of reference signs:
assembly 11 transport arrangement 12 revolving plate
. CA 03003939 2018-05-02 = , The guide mandrel 34 has a guide portion 37, the lat-eral surface of which forms a guide surface 38. The length of the guide portion 37 along the longitudinal axis L is greater than that of the other portions of the guide man-drel 34. The guide portion 37 in the exemplary embodiment has a cylindrical design and in particular a circular cross-section.
The outer dimension, and in accordance with the exam-ple the outer diameter, of the guide portion 37 is smaller than the inner dimension, and in accordance with the exam-ple the inner diameter, of the blank ring 15 by a guide play. The blank rings 15 can therefore slide along the guide surface 38 smoothly and in a manner oriented approxi-mately coaxially with the longitudinal axis L of the guide mandrel 34. The guide play for example can be at most 1.0 mm to 1.5 mm or up to 2.0 mm.
The guide portion 37 is adjoined by a tapering por-tion, and in accordance with the example a conical portion 39. As a result of the conical portion 39, the outer diame-ter of the guide mandrel 34 reduces starting from the guide portion 37 in the direction of the upper end 35. The coni-cal portion 39 can extend as far as the upper end 35. In the exemplary embodiment described here, a further cylin-drical portion is provided adjacently to the upper end 35 and adjoins the conical portion 39. The outer diameter at the upper end 35 is smaller, and preferably smaller at least by a factor of 2 to 3, than the outer diameter of the guide portion 37. It is thus ensured that the blank rings 15 are threaded onto the guide mandrel 34 within the inser-tion channel 29 and cannot strike against the upper end 35 . -13-, =
and become wedged or blocked within the insertion channel 29.
In a modification of the presented exemplary embodi-ment, the guide mandrel can also taper to a point conically and/or in a convexly curved manner and/or in a spherical dome-like manner at the upper end 35. It can be formed without a flat end face at the upper end 35.
Adjacently to the lower end 36, the guide mandrel 34 has an end portion 40, which tapers in the direction of the lower end 36. The length of this end portion 40 along the longitudinal axis L is at least as great as the thickness or size of a blank ring 15 along the longitudinal axis L.
The tapering end portion 40 for example can have a dome shape and/or a cone shape. As considered in the longi-tudinal section along the longitudinal axis L, the lateral surface can extend in a straight line or in a convexly curved manner from the guide portion 37 to the lower end 36, and in so doing the outer diameter of the guide mandrel 34 can reduce.
A holding arrangement 44 is arranged on the transport surface 24. The holding arrangement 44 has a holding part 45 with a cylindrical holding opening 46. The holding open-ing 46 is oriented coaxially with the working axis A. The connecting piece 30 with the insertion channel 29 is ar-ranged in the direction of the working axis A at a distance from the holding part 45 with the holding opening 46.
The inner diameter of the holding opening 45 is great-er than the outer diameter of the guide mandrel 34 and in = CA 03003939 2018-05-02 =
particular of the guide portion 37, such that an annular channel 47 for the blank rings 15 is formed in the holding opening 46. The inner diameter of the holding opening 46 is greater than the outer diameter of the blank rings 15.
An axial portion 48 of the guide mandrel 34, which in accordance with the example is formed by a region of the guide portion 37, runs within the holding opening 46. The holding part 45 is formed in accordance with the example by a filling tube 49. In addition to the filling tube 49, the holding device 44 can optionally also have further holding parts. The holding parts can be arranged directly adjacent-ly along the working axis A or can be arranged offset from one another at a distance.
The filling tube 49 or the holding part 45 is adjoined in the exemplary embodiment of the holding arrangement 44 by a centring sleeve 52. The centring sleeve 52 has a cen-tring channel 53, which is oriented coaxially with the working axis A. The centring channel 53 extends fully through the centring sleeve 52 from an upper opening 54 to a lower opening 55. The centring channel 53 tapers at least along at least a portion between the upper opening 54 and the lower opening 55. In the exemplary embodiment the upper opening 54 is adjoined by a conical portion, which transi-tions into a cylindrical portion of the centring channel 53, which adjoins the lower opening 55. In the region of the lower opening 55, the inner diameter of the centring diameter 53 is greater than the outer diameter of the blank rings 15 merely by a small centring play, such that these blank rings 15 are positioned coaxially with the working axis A with the predefined, necessary precision.
' CA 03003939 2018-05-02 The filling tube 49 and the centring sleeve 52 are held jointly by a holding body 56 of the holding arrange-ment 44 and in accordance with the example are arranged on the transport surface 24.
The feeding device 21 according to Fig. 5 operates as follows:
The blank rings 15 are fed in a sorted or unsorted manner at the pick-up point 22 and enter the insertion track 28, and slide out therefrom into the insertion chan-nel 29. In the insertion channel 29, the blank rings 15 drop downwardly and in so doing are threaded onto the guide mandrel 34. The blank rings 15 thus surround the longitudi-nal axis L of the guide mandrel 34 substantially coaxially.
They can slide downwardly along the guide mandrel 34. As shown in Fig. 5, a stack of blank rings 15 thus forms around the guide mandrel 34. Adjacent blank rings 15 lie against one another. The blank ring 15 arranged adjacently to the lower end 36 lies on the transport surface 24 in the pocket 13 associated with the feeding device 21. The guide mandrel 34 is supported on the transport surface 24. By way of the incremental step movement of the revolving plate 12, the blank ring 15 is also moved along in the pocket 13 to-gether with the revolving plate 12 and comes into contact with the end portion 40 of the guide mandrel 34. By way of the shape of the end portion 40, which tapers in the direc-tion of the lower end 36, the guide mandrel 34, with con-tinued movement of the blank ring 15 in the pocket 13, moves upwardly along its longitudinal axis L and releases the lowermost blank ring 15. As soon as the next pocket ar-rives beneath the guide mandrel 34, the guide mandrel 34 engages again in the next pocket 13 by means of its end portion 40. If this pocket 13 is arranged beneath the stack of blank rings 15, the blank ring 15 which is now the low-ermost ring is pushed into the pocket 13. The situation as shown in Fig. 5 is thus produced again. With the next in-cremental step movement of the revolving plate, the lower-most blank ring 15 moves away from the feeding device 20 or away from the feeding station 20 as described above, and the described process sequence is repeated.
The guide mandrel 34 is not directly mechanically guided or held in the feeding device 21. It is indirectly supported on the centring sleeve 52 or on the holding part 45 by way of a blank ring, and in accordance with the exam-ple a plurality of blank rings 15. In accordance with the play provided there, the longitudinal axis L of the guide mandrel 34 is oriented approximately along the working axis A, wherein the longitudinal axis L can run at a slight in-cline to, and/or offset in relation to the working axis A.
The guide mandrel 34 is therefore arranged loosely so to speak in a movable manner along its longitudinal axis L. It is thus possible to thread or slide blank rings onto the guide mandrel 34 at the pick-up point 22 and to remove the same from the guide mandrel 34 and transport them on fur-ther at the delivery point 23.
The exemplary embodiment of the feeding device 21 shown in Fig. 8 corresponds substantially to the exemplary embodiment shown in Fig. 5. The difference lies in the fact that, in the exemplary embodiment according to Fig. 8, the guide portion 37 of the guide mandrel 37 does not have a circular cross-section. It is cylindrical and for example can have a polygonal cross-section or a cross-section with a corrugated contour, which is shown in Fig. 8 by the exem-. = CA 03003939 2018-05-02 , plary cross-sectional images (line of section X-X). Outside the guide portion 37, the guide mandrel 34 in the exemplary embodiment has a circular cross-section all over and for example can have dome-like portions, conical portions, or circular-cylindrical portions. Otherwise, the exemplary em-bodiment according to Fig. 8 is identical to the exemplary embodiment according to Fig. 5, and therefore reference can be made to the explanations provided above.
In the exemplary embodiment shown in Fig. 8, the cross-sectional shapes of the centring channel 53 and/or of the insertion channel 29 and/or of the holding opening 46 can also be adapted to the outer contour of the blank rings 15, and for example can match the outer contour of the blank rings 15, apart from any play necessary.
Each of Fig. 6 and 7 shows an exemplary embodiment in which a drive arrangement is provided in order to raise the guide mandrel 34 from the transport surface 24 at the de-livery point 23 temporarily or permanently. The drive ar-rangement for this purpose can use compressed air, a mag-netic field, or another bodiless, non-mechanical means or medium.
Fig. 6 shows a modified exemplary embodiment of the feeding device 21. In contrast to the exemplary embodiment from Fig. 5, the lower end 36 of the guide mandrel 34 is not adjoined by a tapering end portion 40. In accordance with the example the guide portion 37 runs as far as the lower end 36. The lower end 36, in contrast to the flat end face, can also have a different form, for example can have a conicity or a dome shape. A blind bore 60 is preferably formed in the lower end 36 and for example is oriented , along the longitudinal axis L and opens out at the lower end 36.
A compressed air channel 61 opens out along the work-ing axis A at the transport surface 24 at the delivery point 23. Compressed air P can be expelled permanently or in bursts through the compressed air channel 61. The com-pressed air P impinges on the lower end 36 and in accord-ance with the example penetrates the blind bore 60. The guide mandrel 34 is thus raised from the transport surface 24. The lowermost blank ring 15, which is disposed in the pocket 13, can be transported away by the revolving plate 12 when the guide mandrel 34 is raised at the delivery point 23.
The compressed air P can be expelled permanently or only when an incremental step movement is actuated by the revolving plate. The expulsion of compressed air is in any case interrupted by the revolving plate 12 if there is no pocket 13 disposed above the compressed air channel 61, but instead a closed surface of the revolving plate 12. During this time, the compressed air expulsion can be interrupted in order to minimise the compressed air consumption.
In this exemplary embodiment there is no contact at the delivery point 23 between the guide mandrel 34 and the blank ring 15 to be discharged that leads to the movement of the guide mandrel 34 along its longitudinal axis L. Ra-ther, the guide mandrel 34 is moved away from the transport surface 24 by a bodiless medium, and in accordance with the example compressed air.
= = CA 03003939 2018-05-02 A further modified exemplary embodiment is shown in Fig. 7. In accordance with the exemplary embodiment accord-ing to Fig. 6, the guide mandrel 34 is raised from the transport surface 24 without mechanical influence and is moved along the longitudinal axis L. Instead of compressed air P. a magnetic field is used in the exemplary embodiment according to Fig. 7. To this end, a permanent magnet 65 is inserted into the guide mandrel 34 adjacently to the lower end 36. In the exemplary embodiment the north pole N of the permanent magnet 65 is associated with the lower end 36.
The permanent magnet 65 is oriented along the longitudinal axis L and directly adjoins the lower end 36. The lower end 36, in contrast to the flat end face, can also have a dif-ferent form, for example can have a conicity or a dome shape.
A further permanent magnet 66 is arranged at the de-livery point 23 directly adjacently to the transport sur-face 24 along the working axis A, the north pole N of which further permanent magnet is arranged facing towards the lower end 36. The magnetic fields of the two permanent mag-nets 65, 66 repel one another, such that the guide mandrel 34 is pushed away from the transport surface 24. A gap thus remains between the lower end 36 and the transport surface 24, by means of which gap the lowermost blank ring 15 can be transported away at the delivery point 23.
Instead of the permanent magnet 66, an electromagnet could also be used. Similarly to the embodiment with the compressed air P according to Fig. 6, the magnetic field of the electromagnet can be generated permanently or only when it is necessary to raise the guide mandrel 34 from the = CA 03003939 2018-05-02 transport surface 24 as a blank ring 15 is transported away.
It is understood that the magnetic field could also be oriented in a reversed manner in a modification of the il-lustration according to Fig. 7. The two permanent magnets 65, 66 could thus be arranged in each case in a rotated manner, so that the two south poles S are arranged directly adjacently and repel one another.
The invention relates to a feeding device 21 to pick up a sorted or unsorted quantity of blank rings 15 at a pick-up point 22, to sort, and to deliver the same sporadi-cally to a delivery point 23. To this end, the feeding de-vice 21, at the pick-up point 22 has an insertion channel 29, which is arranged coaxially with a working axis A. A
transport surface 24 is provided at the delivery point 23, along which transport surface the blank rings 15 are dis-charged sporadically. The feeding device 21 has a holding arrangement 44 with a holding part 45, which delimits a preferably cylindrical holding opening 46. The holding opening 46 is oriented coaxially with the working axis A. A
guide mandrel 34 extends along a longitudinal axis L from an upper end 35, which is associated with the pick-up point 22, to a lower end 36, which is associated with the deliv-ery point 23. The longitudinal axis L is oriented substan-tially along the working axis A. The guide mandrel 34 is not directly held or guided by mechanical means. It is sup-ported in the holding opening 46 on the holding part 45 and/or in the insertion channel 29 by way of one or more blank rings 15, which surround the guide mandrel 34 coaxi-ally. The guide mandrel 34 is thus arranged loosely in a freely movable manner, in particular along the longitudinal = CA 03003939 2018-05-02 axis L thereof. In this way, the blank rings 15 at the up-per end 35 can be threaded or placed on the guide mandrel 34 and can be stacked along the guide mandrel 34 coaxially with the longitudinal axis L. The blank rings 15 can be re-moved from the guide mandrel 34 at the delivery point 23 in that the guide mandrel is raised from the transport surface 24. The lifting can be done mechanically and/or magnetical-ly and/or electromagnetically and/or by means of a fluid, in particular compressed air P.
= = CA 03003939 2018-05-02 List of reference signs:
assembly 11 transport arrangement 12 revolving plate
13 pocket
14 circular blank part blank ring 16 circular blank core 17 coining station feeding station 21 feeding device 22 pick-up point 23 delivery point 24 transport surface 27 insertion point 28 insertion track 29 insertion channel connecting piece 34 guide mandrel upper end of the guide mandrel 36 lower end of the guide mandrel 37 guide portion of the guide mandrel 38 guide surface 39 conical portion of the guide mandrel end portion of the guide mandrel 44 holding arrangement holding part =
46 holding opening 47 annular channel 48 axial portion of the guide mandrel 49 filling tube 52 centring sleeve 53 centring channel 54 upper opening of the centring channel 55 lower opening of the centring channel 56 holding body 60 blind bore 61 compressed air channel 65 permanent magnet 66 permanent magnet A axis = longitudinal axis = north pole = compressed air = axis of revolution = south pole
46 holding opening 47 annular channel 48 axial portion of the guide mandrel 49 filling tube 52 centring sleeve 53 centring channel 54 upper opening of the centring channel 55 lower opening of the centring channel 56 holding body 60 blind bore 61 compressed air channel 65 permanent magnet 66 permanent magnet A axis = longitudinal axis = north pole = compressed air = axis of revolution = south pole
Claims (13)
1. A feeding device for feeding blank rings to a transport assembly, the feeding device comprising a guide mandrel for the blank rings, which extends along a longitudinal axis from an upper end to a lower end, an insertion channel, which is associated with the upper end of the guide mandrel and which is arranged coaxially with the longitudinal axis, a holding arrangement, which has at least one holding part with a holding opening arranged coaxially with the longitudinal axis, wherein an inner dimension of the holding opening is greater than an outer dimension of the guide mandrel, such that an annular channel for the blank rings is provided in the holding opening, wherein the guide mandrel is mounted movably along the longitudinal axis and a drive arrangement is provided and configured to raise the lower end of the guide mandrel from a transport surface by a field or a medium.
2. The feeding device according to claim 1, wherein the upper end of the guide mandrel protrudes into the insertion channel.
3. The feeding device according to claim 1 or 2, wherein the guide mandrel has a cylindrical guide portion, an outer dimension of which is smaller than an inner dimension of the blank rings by a guide play.
4. The feeding device according to claim 3, wherein Date Regue/Date Received 2022-12-20 the guide portion has a lateral surface, which is used as a guide surface for the blank rings.
5. The feeding device according to claim 3 or 4, wherein the upper end of the guide mandrel has a smaller outer dimension than that of the guide portion.
6. The feeding device according to any one of claims 3 to 5, wherein a tapering portion adjoins the guide portion.
7. The feeding device according to any one of claims 1 to 6, wherein the holding arrangement has a filling tube, which surrounds at least an axial portion of the guide mandrel.
8. The feeding device according to any one of claims 1 to 7, wherein the holding arrangement has a centring sleeve, which is arranged coaxially with the longitudinal axis and adjacently to the lower end of the guide mandrel.
9. The feeding device according to claim 8, wherein the centring sleeve has a centring channel, which tapers downwardly at least at a plurality of peripheral points.
10. The feeding device according to any one of claims 1 to 9, wherein a tapering end portion is provided at the lower end of the guide mandrel.
11. The feeding device according to claim 10, wherein the end portion has one of or both a chamfer and a radius.
Date Regue/Date Received 2022-12-20
Date Regue/Date Received 2022-12-20
12. The feeding device according to any one of claims 1 to 11, wherein the guide mandrel is supported on the holding part in the at least one holding opening by means of one or more blank rings.
13. The feeding device according to any one of claims 1 to 12, wherein the transport surface is a transport surface for the blank rings and the lower end of the guide mandrel is supported on the transport surface.
Date Regue/Date Received 2022-12-20
Date Regue/Date Received 2022-12-20
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015119568.2A DE102015119568B3 (en) | 2015-11-12 | 2015-11-12 | Feed device for blank rings |
| DE102015119568.2 | 2015-11-12 | ||
| PCT/EP2016/075854 WO2017080832A1 (en) | 2015-11-12 | 2016-10-26 | Feeding device for circular blank rings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA3003939A1 CA3003939A1 (en) | 2017-05-18 |
| CA3003939C true CA3003939C (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3003939A Active CA3003939C (en) | 2015-11-12 | 2016-10-26 | Feeding device for blank rings |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP3374104B1 (en) |
| JP (1) | JP6811239B2 (en) |
| CN (1) | CN108495726B (en) |
| CA (1) | CA3003939C (en) |
| DE (1) | DE102015119568B3 (en) |
| WO (1) | WO2017080832A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112124964B (en) * | 2020-09-27 | 2022-04-15 | 湖南润华新材料有限公司 | A panel sorting device for fire hose manufacturing |
| DE102021117492A1 (en) * | 2021-07-07 | 2023-01-12 | Schaeffler Technologies AG & Co. KG | Assembly device and method for handling workpieces |
| CN113998449B (en) * | 2021-11-11 | 2022-07-12 | 大连奥托股份有限公司 | Floating feeding mechanism |
| CN114536788B (en) * | 2022-02-23 | 2022-11-04 | 宜昌崟锦包装有限责任公司 | Integrated assembling device and method for multiple plastic wine cap lantern rings |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1419247A (en) * | 1972-02-17 | 1975-12-24 | Jackson J M | Take off and stacker for container printing machine |
| DK130239B (en) * | 1972-04-19 | 1975-01-27 | E Solbeck | Method and apparatus for manufacturing a thermoplastic film web with locally attached fittings. |
| DE2653914C2 (en) * | 1976-11-27 | 1986-09-18 | L. Schuler GmbH, 7320 Göppingen | Device for stacking sheet metal in accordance with the punching pattern |
| DE2610123C3 (en) * | 1976-03-11 | 1980-01-17 | L. Schuler Gmbh, 7320 Goeppingen | Device for stacking sheet metal in accordance with the punching pattern |
| DE3544104A1 (en) * | 1985-12-13 | 1987-06-19 | Schuler Gmbh L | DEVICE FOR SEPARATING AND FEEDING PIECES AT A PRESS PRESS |
| US4710085A (en) * | 1986-02-20 | 1987-12-01 | Statomat-Globe, Inc. | Lamination stack selection method and apparatus |
| KR960009006B1 (en) * | 1994-04-18 | 1996-07-10 | Poongsan Co Ltd | Manufacture of coin |
| TW367303B (en) * | 1996-03-25 | 1999-08-21 | Mitsubishi Material Silicon | Hoist apparatus for annular member |
| CN202531685U (en) * | 2012-03-30 | 2012-11-14 | 李智奇 | Shaft core grooving electromagnetic embedded clutch device |
| CN104759513A (en) * | 2015-03-17 | 2015-07-08 | 苏州市东吴滚针轴承有限公司 | Stretching and automatic feeding device for outer ring of bearing |
| CN204685870U (en) * | 2015-04-18 | 2015-10-07 | 浙江理工大学 | A kind of automatic stamping production line pay-off |
-
2015
- 2015-11-12 DE DE102015119568.2A patent/DE102015119568B3/en active Active
-
2016
- 2016-10-26 WO PCT/EP2016/075854 patent/WO2017080832A1/en active Application Filing
- 2016-10-26 CN CN201680078625.7A patent/CN108495726B/en active Active
- 2016-10-26 JP JP2018524828A patent/JP6811239B2/en active Active
- 2016-10-26 EP EP16788087.1A patent/EP3374104B1/en active Active
- 2016-10-26 CA CA3003939A patent/CA3003939C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP6811239B2 (en) | 2021-01-13 |
| CA3003939A1 (en) | 2017-05-18 |
| EP3374104A1 (en) | 2018-09-19 |
| WO2017080832A1 (en) | 2017-05-18 |
| CN108495726A (en) | 2018-09-04 |
| EP3374104B1 (en) | 2023-03-29 |
| JP2018535166A (en) | 2018-11-29 |
| CN108495726B (en) | 2020-08-04 |
| DE102015119568B3 (en) | 2017-01-19 |
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