瑞典专利SE0950635A1 Carrier puck

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权利要求

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引用文献

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优先权

专利摘要:
SUMMARY Carrier puck (1) for a conveyor system, comprising a circular lower body (2), and an upper body (3) attached to the lower body, and wherein the puck further comprises a guide ring (4). The advantage of the invention is that less force is required when the puck is handled in a conveyor system, and that the wear on the puck is reduced. (Figure 1)
公开号:SE0950635A1
申请号:SE0950635
申请日:2009-09-04
公开日:2011-03-05
发明作者:Michael Oehman
申请人:Flexlink Components Ab；
IPC主号:

专利说明:

15 20 25 30 objects to a side track, the diverting station must be able to catch the correct object from the fate of the main object ﬂ and ﬂ move it out of ﬂ fate. If there are many objects that are transported next to each other in the main flow, and which abut against each other, then the force needed to push the puck out of fate will be relatively high.
When a diverter disc grips the puck and moves it out of the main flow, the puck is subjected to a rotating movement as the diverter disk rotates.
The puck can rotate during the deflection but will most likely not rotate relative to the deflection disc. When a number of other pucks abut the first puck, the diverter plate must overcome the force from the other pucks abutting each other. This leads to the first puck either sliding with friction against the other pucks or to all the other pucks also rotating, or to a combination of these. When a puck rotates, it will rub against the transport rails and perhaps also against the nearest puck. In both cases, the deflection disc must exert a relatively high force due to the friction between the pucks and the force applied to the pucks by the conveyor track in the direction of the first puck.
One way to solve this problem is to introduce an extra stop function before the diverting station. The stop will interrupt the main flow so that the puck can be easily led out of the main conveyor path. Each stop is an unnecessary cost and also requires additional space.
Another possibility is to use an engine that is strong enough to overcome the friction from the pucks in the main flow. When a puck is led out of the head ﬂ by a deflection disc, the puck will be rotated by the deflection disc during the deflection. When other objects abut the first object, the diverter disc must overcome the force from all objects during diverting. This requires a relatively large drive unit, e.g. a motor. In a large system that has a number of workstations, the total power requirement will be unnecessarily large. EP 1393080 B describes a conventional circular carrier puck adapted for use with test tubes. The carrier puck can be used in such a system as described above.
GB2256629 A describes a circular packaging transport puck which has a er-like projection for holding a package. The.-Like projections may have annular conical portions at their upper ends to allow the puck to roll against an axis perpendicular to the base. The transport puck can be used in such a system as described above.
US 6176369 B, US 2004124109 A, US 4729413 A, CA 2248565 A, US 5484052 A, US 5897090 A and US 3941237 A all describe different examples of circular carrier pucks which can be used in such a system as described above.
All of these carrier pucks work well in some systems, but may still be subject to the above-mentioned problem. DESCRIPTION OF THE INVENTION It is therefore still an object of the invention to provide an improved carrier puck having a sliding ring. A further object of the invention is to provide a carrier puck which can be easily disassembled to replace a broken or worn part. Another object of the invention is to provide a circular carrier puck which can be aligned in a specifically aligned position.
The solution to the problem according to the invention is described in the characterizing part of claim 1. The other requirements contain advantageous embodiments and further developments of the carrier puck. With a carrier puck for a conveyor system, comprising a circular lower body, and an upper body attached to the lower body, the object of the invention is realized in that the carrier puck further comprises a rotatable sliding ring.
With this first embodiment of the carrier puck according to the invention, the carrier puck can be handled by various means in the conveyor system, such as diverters and interconnectors, in an efficient and cost-effective manner. Since the handling device will grip the puck during the sliding ring, the handling does not require as much power as when conventional pucks are handled, since the handling device and the puck can move relative to each other.
This improves system performance. In an advantageous further development of the invention, the largest diameter of the carrier puck is larger than the outer diameter of the sliding ring. This further improves the performance of the system, since the pucks abutting each other on the conveyor belt do not need to be rotated when a first puck is handled with the sliding ring.
This allows a simpler system with fewer components because, for example, special puck stops are not needed at a handling station.
In an advantageous further development of the invention, the largest diameter of the carrier puck is smaller than the outer diameter of the sliding ring. In this way, the bearing rings of different pucks will abut each other. This will improve the performance of the system because the individual pucks on a conveyor belt do not need to be rotated when a first puck is handled with the sliding ring. instead, the sliding rings will rotate. In an advantageous embodiment of the invention, the sliding ring is provided with rolling elements. In this way, the sliding ring will act as a roller bearing against the carrier puck. This will further improve the system's performance as the friction between the puck and the slip ring is reduced. This is advantageous e.g. when larger and / or heavier products are to be transported by the carrier puck. In another advantageous development of the invention, the carrier puck comprises an identification means. This allows an identification of the object transported by the carrier puck in a simple manner. In this way, different types of objects can be transported on the same conveyor belt.
In another advantageous development of the invention, the lower body of the carrier puck and upper body comprises holding means so that the upper body can be detached from the lower body. This enables easy replacement of broken or worn parts on the carrier puck. This also makes it easy to modify a carrier puck for different objects to be transported.
In another advantageous development of the invention, the lower body and the upper body of the carrier puck are fixedly mounted to each other. This enables a cost-effective and simple solution, especially when there is a need for a large number of similarly mounted carrier puck.
BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail in the following, with reference to the embodiments shown in the accompanying drawings, in which: Fig. 1 shows a side view of a first embodiment of a carrier puck according to the invention, Fig. 2 shows a cross-section of the first embodiment of a carrier puck according to the invention, Figs. 3-5 show a puck according to the invention which is deflected with a deflection disc on a conveyor belt, Fig. 6 shows a side view of a second embodiment of a carrier puck according to the invention. invention, and Fig. 7 shows an embodiment of an alignment disc for a carrier puck according to the invention.
METHODS OF PRACTICE OF THE INVENTION The embodiments of the invention with further developments described below are to be considered as examples only and are in no way to limit the scope of the protection afforded by the claims.
Figs. 1 and 2 show a first embodiment of a carrier puck for a conveyor system according to the invention. The carrier puck 1 comprises a lower body 2, an upper body 3 and a sliding ring 4. The lower body has a circular shape and comprises a base surface 6, a lower contact surface 7, a guide groove 8, an upper contact surface 9 and an annular groove 10. The puck transported on a conveyor belt by standing on the base surface. The lower contact surface 7 and the upper contact surface 9 are used when a puck abuts another puck or another surface. The diameters of the lower contact surface and the upper contact surface are preferably the same, and in this embodiment will also correspond to the largest diameter of the complete puck. In this way, the pucks can abut each other without the risk of tipping over.
The guide groove 8 can be used to move the puck on the conveyor belt. If a guide of the puck is needed, the conveyor belt includes rails that correspond to the guide groove. In this way, the puck will be secured to the belt and cannot fall off or tip over. The rails are used when needed.
The lower body also includes retaining means 5 used to mount the upper body to the lower body. In the example shown, the retaining means is designed as a bayonet coupling with bayonet recesses in the lower body and bayonet projections in the upper body. Of course, other holding means are also conceivable, such as threads or releasable snap locks. The retaining means may, as shown in this example, be demountable so that the upper body can be removed from the lower body. The advantage of this is that parts of the puck can be replaced when they have broken or worn, or that the upper body can be replaced with a body adapted for another use. In this way, the puck or parts of the puck can be reused when a production line is changed or shut down.
When the puck does not need to be disassembled, the upper and lower bodies can also be fixed to each other, e.g. with screws, glue, adhesion, snap lock or similar, depending on e.g. the material of the upper and lower body. The upper and lower bodies can also be integrated with each other, so that they form a single part. The puck can also be provided with an identification means 11, e.g. an RFID tag which can either be firmly integrated in the lower body or which can be detachably placed inside the lower body.
The diameter of the upper body is advantageously smaller than the diameter of the contact surfaces of the lower body when the upper body is circular. If the upper body has a different shape, in this way the puck will only abut against another puck or another surface with the contact surfaces. Since the contact surfaces are located on the lower part of the puck, this will ensure that the puck is stable. The inner and upper part of the upper body are adapted to the objects to be transported. Such objects may include, depending on e.g. puck size, test tubes, mechanical parts, composite parts, medical preparations and more.
The sliding ring 4 is mounted in the annular groove 10. The dimensions of the annular groove and the sliding ring are such that the sliding ring can easily rotate in the annular groove when the puck is mounted. The outer diameter of the sliding ring in the first embodiment is smaller than the diameter of the contact surfaces. In this way, the slip ring will not protrude from the puck's body. The sliding ring 4 is positioned at a height corresponding to the height of e.g. a diverter disk or another handling unit. This means that the diverter disc will be able to hold the puck in the sliding ring. The friction between the sliding ring and the retaining plate holding surface will hold the sliding ring in a fixed position relative to the holding surface during a deflection of the puck.
The puck is advantageously made of a low-friction material so that the puck can slide against the conveyor belt when the pucks are stopped, e.g. at a workstation or a diversion station. Such a low friction material may be a suitable plastic material, e.g. a polyamide, an acetal plastic or a conductive acetal plastic. At least the lower body of the puck is advantageously made of this material. The slip ring can also be made of such a plastic, or it can be made of a metal to obtain a higher wear resistance. The sliding ring can also be designed as a roller bearing which includes roller elements to further reduce the friction and to increase the wear resistance.
An example of a deflection of a puck is shown in Figs. 3 to 5. In this example a plurality of pucks are transported on a first conveyor belt 25 and a first puck 20 is to be deflected to a second conveyor belt 26 by a deflection disc 23. The direction of movement of the conveyor belt is shown by arrows . The diverter plate is provided with a circular holder recess 24 which corresponds to the size of the sliding ring of a puck. In Fig. 3, a first puck 20 has entered the holder recess in a diverter disc which is in a first position. A puck train with a conductive second puck 21 abuts against the first puck and is pressed against the first puck with a force which depends on the weight of each puck and the friction between the conveyor belt and the puck train.
In Fig. 4, the diverter disk rotates in a counterclockwise direction shown by an arrow.
The puck follows the diverter disc. Due to the sliding ring, the puck will not be axed to the deflection disc during this movement, but the puck will be able to rotate relative to the deflection disc. The puck will thus be able to roll towards the other puck during the deflection movement. In this way, the second puck and the other pucks in the puck train 10 will not be rotated by the first puck, which is the case with a conventional puck which is not provided with a sliding ring. Since the pucks in the puck train will not be rotated, less force is needed to rotate the diverter disc. There is also no reason to introduce a puck stop in order to be able to stop the puck train so that the first puck is relieved during the diversion. In Fig. 5, the diverter disk has rotated to its second position in which the first puck has been led to the second conveyor belt. When the first puck has left the holder recess, the diverter disc can be rotated in a clockwise direction back to the first position in the bay it will catch the second puck which is in turn. When the deflection disc rotates back to the first position, the outer surface of the deflection disc will be in contact with the sliding ring of the second puck. The sliding ring will thus rotate relative to the second puck, and the second puck will not rotate. When a conventional puck is used, either the pucks in the puck train will be rotated or the outer surface of the diverter disc will slide against the puck. To rotate the puck train, a relatively strong motor is required for the diverter disc, and letting the outer surface of the diverter disc slide against the puck will also require unnecessary force and will also cause wear on the surfaces.
When the second puck is caught by the diverting disc, it can either be diverted to the second conveyor belt with a counterclockwise rotation or it can be passed on on the first conveyor belt with a clockwise rotation. When the puck is passed on, the outer surface of the diverter disc will cause the sliding ring of the third puck 23 to rotate, which means that the third puck can maintain its orientation and less force is required.
In a second embodiment, the diameter of the sliding ring is larger than the diameter of the puck.
In this embodiment, the deflection disc can still catch the puck in the sliding ring, but the pucks in the puck train will abut with the sliding rings against each other. When such a puck is deflected, all the puck rings' sliding rings will rotate. Such an arrangement is therefore most suitable for a relatively short puck train. The pucks will still be able to retain their orientation when a first puck is diverted or passed on.
In a development of the inventive puck, shown in Fig. 6, the puck is also provided with an alignment ring positioned above the sliding ring. The alignment ring is advantageously arranged on the lower part of the upper body. In this way, the same lower body can be used for all different puck types. The alignment ring is used to give the puck a specific orientation.
This can be useful in e.g. a workstation where the operation to be performed requires that the object be directed in a special way. The alignment ring can be integrated with the upper body, e.g. by injection molding, or may be removable from the upper body. The inner surface of the alignment ring can in that case be provided with dividing grooves in order to be able to position the alignment ring with a specific orientation relative to the upper body. This is advantageous when the object to be transported is oriented in a specific direction in the upper body.
Preferably, the alignment ring comprises an alignment section which is used to rotate the puck to the specific orientation position and a position section which can hold the puck in that position. It is also possible to have more than one position section when the object is symmetrical and can be oriented in two or more identical orientation positions. The alignment ring is adapted to cooperate with a specific alignment rail which is arranged at positions on the conveyor belt where a specific orientation of the puck is required. Fig. 7 shows an embodiment of such an alignment ring.
The alignment section 13 comprises a number of teeth which can engage with a toothed rail and which will thereby rotate the puck when it is transported by the conveyor belt. When the orientation position is reached, the rotation of the puck stops and the position section 14 which comprises a flat surface will slide against the alignment rail. 11 The invention shall | is not considered to be limited to the described embodiments, a number of further variants and modifications are possible within the scope of the appended claims. The puck can be of any size and can be made of any suitable material. 10 15 20 12 REFERENCE DESIGNATIONS - - - - - CDG7 lO7C7I- |> 0OI ) - : HWNñg-n-Ipn -...- IA-n N .O k) _ NN NNNN. ..Å Carrier puck Lower body Upper body Sliding ring Holding means Base surface Lower contact surface Guide groove Upper contact surface Annular groove identification means Alignment ring Alignment section Position section dividing groove First puck Second puck Third puck Diversion plate Holder recess First transport path

权利要求:
Claims (9)
[1]
CLAIMS Carrier puck (1) for a conveyor system, comprising a circular lower body (2), and an upper body (3) attached to the lower body, characterized in that the carrier puck further comprises a rotatable sliding ring (1). 4).
[2]
Carrier puck according to claim 1, characterized in that the largest diameter (d1) of the lower body (2) is larger than the outer diameter (d2) of the sliding ring (4).
[3]
Carrier puck according to claim 1, characterized in that the largest diameter (d1) of the lower body (2) is smaller than the outer diameter (d2) of the sliding ring (4).
[4]
Carrier puck according to one of the preceding claims, characterized in that the sliding ring (4) is provided with roller elements.
[5]
Carrier puck according to one of the preceding claims, characterized in that the carrier puck further comprises a straightening ring (12) having an alignment section (13) and a position section (14).
[6]
Carrier puck according to claim 5, characterized in that the alignment section (13) is provided with teeth.
[7]
Carrier puck according to one of the preceding claims, characterized in that the device further comprises an identification means (11).
[8]
Carrier puck according to one of the preceding claims, characterized in that the lower body (2) and the upper body (3) comprise removable holding means (5) so that the upper body can be removed from the lower body (2).
[9]
Carrier puck according to one of Claims 1 to 7, characterized in that the lower body (2) and the upper body (3) are fixedly mounted to one another.

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同族专利:

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EP2473425A4|2016-10-19|

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法律状态:

优先权:

申请号 | 申请日 | 专利标题

SE0950635A|SE534735C2|2009-09-04|2009-09-04|Bärarpuck|SE0950635A| SE534735C2|2009-09-04|2009-09-04|Bärarpuck|

PCT/SE2010/050924| WO2011028166A1|2009-09-04|2010-08-31|Carrier puck|

PL10814027T| PL2473425T3|2009-09-04|2010-08-31|Carrier puck|

US13/393,769| US8695791B2|2009-09-04|2010-08-31|Carrier puck|

CN201080037136.XA| CN102648136B|2009-09-04|2010-08-31|Carrier puck|

JP2012527848A| JP5515158B2|2009-09-04|2010-08-31|Career pack|

EP10814027.8A| EP2473425B1|2009-09-04|2010-08-31|Carrier puck|

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