DE102016123640B3 - Gripper for container transport - Google Patents

Abstract

The invention relates to a container clamp for holding containers. In order to provide a particularly easily cleanable transport device for containers, in particular bottles with a neck ring, which ensures a secure detection and transport of the container, are a substantially horizontally oriented support member, arranged on the support member container bracket for holding containers with two each about an axis of rotation a first horizontal plane pivotable clamp arms, one on the support member in a second example. Horizontal plane rotatably mounted control device provided with arcuate cams, each stapler is mounted with a guide element in one of the cams, the staple arms by means of a rotary movement of the control device between an open position and a Detection position are pivotable, and the first and second levels are identical or substantially aligned parallel to each other.

Description

The invention relates to a transport device for containers, in particular bottles with a neck ring, comprising a substantially horizontally oriented support member with a container clamp for detecting and holding containers.

Container clamp transport devices are used to hold and transport empty or filled containers in container processing plants. In the area of container handling stations such as dispensers, closure devices, and the like, the container clamps capture the containers and transport them through the respective container treatment stations.

When using the transport device in the food industry, care must be taken to ensure that it can easily meet the high hygienic standards required in the food industry. That is, the transport device must be easy to clean.

From the DE 693 02 333 T2 a gripper for containers is known in which the gripping arms have cam-shaped extensions at the rear end, on which a linearly displaceable and prestressed sliding block can be guided along to open and close the gripping jaws. A comparable locking device is from the DE 28 46 849 A1 known. DE 10 2015 106 103 A1 discloses a gripper in which each gripper arm is fixed to a vertical pivot axis and which further comprises a radially displaceable locking element. The locking element can be applied with leaf spring-like abutment elements on the rear gripper arm ends, whereby the grippers are securely locked even with different opening width.

From the EP 2 138 434 B1 Furthermore, a gripper for bag-shaped containers with mouthpiece is known, which comprises a support shaft with a longitudinal axis, and a holder for a pair of clamping devices, which are connected to the carrier shaft. In this case, the clamping devices for opening and closing of the gripper in the mutual distance and approach mode are movable. Further, driving means for moving the tensioning means and actuating means for activating the drive means are provided, wherein the actuating means are arranged in a position coaxial with the axis of the support shaft and move in the vertical direction under the exertion of a vertical force coaxial with the axis of the support shaft. To this end, the actuating means are kinematically connected to the drive means to activate them along a horizontal direction, and wherein the tensioning means are operated perpendicular to the direction of attachment of the vertical force.

The DE 698 01 239 T2 in turn discloses a container gripper in which a toggle lever mechanism is moved in locked position via a radially movable and biased thrust piston, and in turn can be pivoted to open via a single-sided steering wheel at the rear end of one of the gripper arms. Furthermore, from the DE 10 2009 043 984 A1 a gripping unit is known in which by means of a pivotable shift lever, the opening and closing of the gripper arms can be made, and further comprising conical connecting means for easy adjustment of the position of these pivotable shift lever and the fuse in case of failure.

A usable in a transport device for container container bracket describes, for example, the DE 10 2005 014 838 A1 , The container clamp has a simple basic structure. However, it does not ensure a synchronous movement of the clamp arms nor does it prevent inadvertent opening and closing of the clamp arms.

The invention is therefore an object of the invention to provide a particularly easy cleanable container clamp, which ensures a secure detection and transport of the container.

The invention solves the problem by a transport device having the features of claim 1. Advantageous developments of the invention are specified in the dependent claims. In this case, all the features described in principle or in any combination are fundamentally the subject of the invention, regardless of their summary in the claims or their dependency.

The inventive container transport device has at least one substantially horizontally oriented support element, a container clamp arranged on the support element for holding a container with two clip arms which are each pivotable about a rotation axis in a first horizontal plane and an arcuate control device rotatably mounted on the support element in a second horizontal plane Control curves, wherein each clamping arm is mounted with a guide element in one of the control cams, the clamping arms by means of a rotary movement of the control device between an open position and a detection position pivotally and the first and second levels are identical or substantially aligned parallel to each other.

A transport device for containers is understood to mean a device which transports the containers at least through sections of a container treatment system. The container clamp and the control device are arranged on a support element of the transport device. In the installed position / position of use, the support element is preferably aligned horizontally or at least substantially horizontally.

The arranged container clamp is an active container clamp in which both an opening movement and a closing movement of the clamp arms is generated by an active drive. The container clamp is suitable for transporting empty as well as filled containers. The clamp arms are arranged mirror-inverted around a central axis of the container clamp and formed. They are provided for gripping a container, in particular for gripping a bottle below or above a neck ring or in a groove integrated into the bottle neck. Each clamp arm is pivotably mounted on a respective axis of rotation and additionally has a bearing on the guide element in the control cam. The rotational movement of the staple arms takes place in a first plane, which is oriented horizontally or at least largely horizontally. Accordingly, the axes of rotation can preferably be arranged vertically, for example at a 90 ° angle to the first plane.

The rotation of the control device takes place in a second plane, which is likewise oriented horizontally or at least largely horizontally. In particular, the cams arranged in the control device rotate in the second plane.

For this purpose, the control unit is arranged on and / or in the support element and extends, for example, with at least one section into the support element or through it.

Thus, for example, the control device may extend with a first section through a recess of the support element and be rotatably mounted therein and rest on the support element with a second collar-shaped section. Also, a recess in the support element may have a countersink with recessed flat surface as a support for a collar on the control device.

The rotation of the control device preferably takes place about a longitudinal axis of the control device. The longitudinal axis may be transverse to the second horizontal plane, in particular vertically on the second horizontal plane. D. h., The longitudinal axis of the control device is preferably arranged parallel to the axes of rotation of the staple arms, for example. Vertically aligned and is preferably perpendicular to the first and second horizontal plane.

The control device comprises, for example, a cylinder extending in the longitudinal axis direction. In cross section, the control device may, for example, be T-shaped. Thus, the control device preferably has a round base body.

The rotatably mounted control means with arcuate cams advantageously allows the synchronous movement of the staple arms during their movement between the open position and the detection position. For this purpose, a positive guidance of the staple arms can be generated by means of the arcuate cams, which guarantees an exclusively synchronous movement of the staple arms during the rotational movement of the staple arms. The respective opening angle of the staple arms is therefore the same at all times. In addition, the arcuate cams have an advantageous self-locking effect, so that unintentional movement of the staple arms is largely prevented.

The first and second horizontal planes may be identical, i. h., the staple arms and the controller rotate in the same plane. In an alternative parallel arrangement of the two horizontal planes, the two planes are, for example, spaced apart in the vertical direction.

Also, the planes may each be formed on opposite sides of the support element, wherein preferably both horizontal planes are arranged on one side of the support element. The first and second horizontal planes are preferably arranged parallel to the support element. Also arranged in an angular offset positioning of the first and second levels is possible.

Under a control curve, in particular, a recess introduced into a component or section of the control device is understood, for example, a groove. For particularly simple cleanability, the recess can completely penetrate the component or the section and is thus designed as an open recess.

Under arcuate is understood that the control cam is at least partially arcuate. In this case, the control curve or the central axis of the recess can consistently have a uniform radius, an alternating radius over different sections of the control cam or a function-dependent radius. Also, the control curve in addition to at least one arcuate portion comprise at least one linear section.

Under a guide element is understood in particular a slidable in the control cam component. The guide element may be formed, for example, as a control bolt, sliding block, guide pin or the like. The guide element is designed as an elevation extending from a surface, in particular a surface of the clamp arms, which is designed to be round in cross-section (transverse to the longitudinal axis), for example. The guide element extends in the direction of its longitudinal axis in the cam or penetrates this.

The longitudinal axis of the guide element can, for example, be aligned parallel to a longitudinal axis (rotation axis) of the control device or transversely to the first horizontal plane and thus, for example, vertically. The guide elements are preferably designed as detachable or inseparably connected separate components with the clamp arms.

The guide element and the cam can form a slotted guide, in which the guide curve are provided as a backdrop and the guide element as a sliding block.

Under a container is understood in particular a container for drinks or liquids. The containers may be formed as cans or Tetra Paks. In particular, however, the containers are preferably designed as beverage bottles with neck ring. The containers may comprise glass or plastic, for example PET.

By the opening position of the staple arms is meant the position in which a single container can be inserted between the gripping portions of the staple arms. Accordingly, the detection position of the two clamp arms is a position in which the clamp arms with the gripping portions hold the container.

In particular, in order to increase the cleanability of the staple arms, each stapling arm is formed in one piece according to a development of the invention. D. h., The clip arms have a one-piece body with a rotary axis receptacle and a receptacle for the guide element. The one-piece body can be made for this example of a single component. Thus, it is possible, for example, to cut out a punching arm from a sheet metal with a precise fit or to punch it out. The clamping arms can accordingly be plate-shaped in particular. Also can be understood in one piece, that each staple arm of several sections is not non-destructively separable composed.

For secure detection of the containers and for particularly easy control of the staple arms, each stapling arm according to a development of the invention has a dimensionally stable gripping portion and / or a resilient control portion. That is, the provided for gripping the container portion of the stapling arm is dimensionally stable in that it undergoes no appreciable deformations in the forces commonly occurring when gripping, holding and transporting containers. The gripping portion is in particular designed to hold as far as possible free of deformation in addition to unfilled containers and filled containers during transport through the respective stations of the container treatment plant safely.

By contrast, the resilient control section is designed to be elastic, so that, for example, during the pivoting movement of the clamping arms, an intended elastic bending deformation of the control section occurs. By means of the resilient control section, a compressive stress of the guide elements can be generated on the control cam, which improves the precision in the pivotal movement of the staple arms and the self-locking effect is further enhanced. For secure detection of the container and to compensate for tolerances, the gripper in a development at least one elastic, magnetic or working in combination component, which allows at least partially elastic deformation that the gripping clamps in the transfer of a container in the circumferential direction in a small angular range in the circumferential direction can be pivoted and thus perform small compensation movements for tolerance compensation.

The arrangement of the control cams in the control application is preferably carried out such that in the detection position, the guide elements mounted in the cams have a maximum distance and / or in the opening position a smallest possible distance from each other, in which case the distance of the guide elements to each other in the open position is less than in the entry item. As a result, the control of Klammerarmbewegung is structurally considerably easier.

According to a development of the invention it is provided that the control cam has a force increasing point. That is, the cam has a portion in which the guide member requires a greater force to pass through the portion with the force increasing point with respect to the portions of the control cam without Krafterhöhöhungsstelle.

As a result, in particular a security function is generated against the unwanted opening or closing of the control cam. Such movements can be done despite the self-locking effect of the control cam, for example, due to machine vibrations or due to the high transport speed and the forces occurring on the container bracket. The force increasing point ensures that the unintentional movement of the clamp arms takes place maximally up to the point of the force increase and is then stopped. Accordingly, the force increasing points can be positioned so that the guide elements are adjacent to the force increasing points in the detection position of the clamp arms and avoid unintentional opening of the clamp arms.

For forming a force increasing point, for example, a portion of the cam may be formed such that an increased tension in the control portion of the staple arm occurs when the guide member is guided along the force increasing point.

A trained as Krafterhöhhungsstelle section of the control cam (eg. A middle section) may have a smaller radius compared to the other sections of the control cam. In other words, the center axis extending between the side edges of the control cam may have a smaller radius in the region of the force increasing point than an area outside the force increasing point. Alternatively, the side edges of the cam can not be arranged to extend parallel in the region of the force increasing point, so that, for example, at least one section of at least one side edge of the control cam has a reduced radius, against which the guide element rests when passing through the control cam.

Particularly preferably, the arcuate cam on at least three merging sections. As a result, the self-locking of the staple arms can be significantly improved. In addition, as already stated, over at least three sections merging into one another advantageously an increase in force in the region of the control curve can be formed, which can form an additional safety function against unintentional movement of the container clamp.

The sections of the cams can have different radii or the complete course of the radii can obey a predetermined mathematical function. Thus, the radius of the central axis of a central cam portion may be smaller than the radius of the adjacent portions, which in addition to an optionally formed force increasing point, the movement of the staple between the opening and detection position is not uniform, but for example start-up phases are formed when opening the staple arms. Accordingly, the central axis of the control cam may be formed, for example, in the form of a parabolic section or approximately a parabolic section. Alternatively, the center axis of the control cam or the control curve can also follow a spiral trajectory and thus the pitch curve is continuous.

According to a development of the invention, the transport device comprises a transport star, which is formed with a circumferentially on the support member juxtaposed plurality of container brackets. The support element is thus a component of the transport star, eg. Part of a transport star plane.

As already stated, the clamping arms are mounted on the axes of rotation. In this case, either the clamp arms are rotatably connected to the axes of rotation or the clamp arms fixed to the axes of rotation and the axes of rotation are rotatably mounted in a bearing unit. The storage unit is advantageously arranged in the support element of the transport device, whereby the structural design of the transport device is already simplified. However, particularly preferably both the bearing of the bearing unit of the axes of rotation and the storage of the control unit takes place in the same support element of the transport device. As a result, in addition to the overall construction, the production of the transport device is significantly simplified, and in addition, both the assembly and disassembly of the container brackets and the cleanability of the container brackets, the support element and the transport device greatly facilitated.

Particularly preferably, the axes of rotation are arranged in a tool-exchangeable bearing unit in the base body. Thus, for example, the bearing unit can be mounted by clamping in the support element. This further simplifies the replacement of the container clamps and improves the handling and the cleanability of the container clamp and the transport star.

While the bearing unit of the axes of rotation is particularly preferably made of plastic in order to simplify the handling during assembly and disassembly of the container clamp, the staple arms usually made of metal to improve the cleanability and handling of the container clamp according to an embodiment of the invention made of fiber-reinforced plastic ,

Furthermore, the invention will be described in more detail with reference to several embodiments. Show it:

1 FIG. 2 is a schematic perspective view of a container clamp mounted on a support element of a transport device in a detection position; FIG.

2 : schematically in a plan view of the container clamp 1 ;

3 : schematically in a perspective view of the container clamp off 1 and 2 in an open position;

4 : schematically in a plan view of the container clamp 3 ,

5a and 5b show in four views a magnetic locking mechanism for the aforementioned container brackets.

1 shows a section of a support element 1 a transport device (not shown here). The support element 1 is part of a transport star level. To the support element 1 are in the direction of rotation next to each other numerous of the illustrated container brackets 2 arranged. The container clips 2 are designed, among other things, for gripping bottles with neck ring. Due to the better representability here is none of the clip arms 3 detected container shown. 1 shows the container clamp 2 in an end position, the detection position, ie, the staple arms 3 are closed.

The container bracket 2 know two clip arms 3 on, which is about a central axis A (see 2 ) are arranged mirror-inverted and formed. Each staple arm 3 the container clamps 2 has a gripping portion 4 and a control section 5 on. The clamp arms 3 are plate-shaped and were integrally formed from a plate-shaped metal sheet.

Between the gripping section 4 and the control section 5 is on each bracket arm 3 one axis of rotation each 6 arranged. Each staple arm 3 is about its axis of rotation 6 pivoted. The rotation of the clamp arms 3 takes place in a horizontal first plane parallel to the support element 1 is arranged.

The axes of rotation 6 are designed as simple bolts and with a first end 6a each with one of the clamp arms 3 connected and with a second end opposite the first end (not shown here) in a storage unit 7 rotatably mounted.

The storage unit 7 is oval and formed in a in the support element 1 arranged oval recess (not shown here) positioned. The oval design of the storage unit 7 and the recess ensures a particularly good cleanability of the storage unit 7 ,

The storage unit 7 is made of plastic and is opposite the oval recess in the support element 1 formed with a slight oversize, so that it is arranged by clamping in the oval recess. The storage unit 7 is without tools from the oval recess in the support element 1 removable. In an alternative, simple design, could be for each axis of rotation 6 own holes in the support element 1 and corresponding storage unit may be provided (not shown).

At every control section 5 each staple arm 3 is at an outer end 5a a guide element 8th , designed here as a control pin arranged. The control pin is immovable in the control section 5 mounted and perpendicular to the plane of the support element 1 , ie parallel to a longitudinal axis B (in 1 by a dashed line, in 2 represented by a cross) of the control device 10 arranged. Every guide element 8th protrudes in each case a control curve 9 ,

The cams 9 are in the controller 10 arranged. The cams 9 are formed identically and in the control device 10 arranged offset at an angle of 180 ° to each other. Each cam 9 know three arcuate sections 9a . 9b . 9c on. The control device 10 is in the support element 1 rotatably mounted, so that the cams 9 be rotated in a second horizontal plane. The second horizontal plane is thus parallel to the first horizontal plane and parallel to the support element 1 arranged.

As in 1 and 2 represented are the guide elements 8th in the detection position in the first section 9a one of the cams 9 , The central axes 9f (shown by dashed line) of the cams 9 in the middle section 9b (here the second section) a constantly changing radius. The radii of the middle section 9b are smaller than the radii of the first and third sections 9a . 9c , This will be a force increasing point 11 generated. In addition, the distance between an outer and an inner groove flank 9d . 9e to each other in the area of the middle section 9b lower than in the first and third sections 9a . 9c ,

So that the guide element 8th the force elevation point 11 can overcome, is an increased effort in the pivotal movement of the staple arms 3 between the opening position and the detection position necessary.

In addition, the third section 9c extremely short and directly at the force elevation points 11 formed adjacent, so that in the third section 9c located guide element 8th by means of the force increasing point 11 experiences a locking effect. That is, the staple arms 3 are in the open position by means of the force increasing point 11 easily locked.

The control device 10 is round (in horizontal cross-section) and formed in a round recess (not shown here) of the support element 1 arranged. That is, the storage unit 7 and the controller 10 are in the same, here integrally formed, supporting element 1 stored the transport device. The control device 10 is rotatable about its longitudinal axis B.

The clamp arms 3 are above the support element 1 stored while the storage unit 7 and the controller 10 in the support element 1 stored and removed from the surface 1a of the support element 1 are arranged outstanding. On the bottom 1b of the support element 2 is a storage block 18 for a drive device 12 or their coupling unit 13 intended.

The clamp arms 3 be in a parallel to the surface 1a of the support element 1 pivoted aligned first horizontal plane between the opening and detection position. The control device 10 is rotated to pivot in a second horizontal plane that is parallel to the first horizontal plane.

The control device 10 is also with a drive device 12 coupled. The drive device 12 closes here to the bottom of the controller 10 on and is with the control device 10 releasably connected. The drive device 12 know one about a coupling unit 13 with the control device 10 connected control lever 14 on. The control lever 14 is by means of a control cam (not shown here) controllable and pivotable about the longitudinal axis B, whereby the pivotal movement of the staple arms 3 is produced.

That is, in operation, the control lever 14 pivoted by means of the control cam. The with the control lever 14 connected control device 10 Follow the movement so that the in the cams 9 arranged guide elements 8th through the cams 9 be pushed.

This will become the staple arms 3 depending on the direction of movement of the control device 10 pivoted between the opening position (first end position) and the detection position (second end position).

3 and 4 show the container clamp 2 with the support element 1 out 1 and 2 in the opening position, each schematically in a perspective view and a plan view. Opposite the representation in 1 and 2 is the controller 10 shown twisted counterclockwise. The guide elements 8th were during the rotary motion in the cams 9 shifted, causing the staple arms 3 around the axes of rotation 6 pivoted in the open position.

It is clearly visible that the guide elements 8th in the opening position ( 3 . 4 ) are arranged at a minimum distance from each other, while the guide elements 8th in the entry position ( 1 . 2 ) are arranged at a maximum distance from each other.

The control sections 5 the staple arms 3 are also resilient. The resilient training is characterized by a structurally particularly simple two-sided constriction of sections of the control section 5 reached. The resilient design of the control sections 5 allows a build-up of a compressive stress on the container in the detection position by the guide elements 8th by means of the cams 9 be easily overridden, ie experienced a slightly outward bending. In addition, by means of the resilient control sections 5 a slight compressive stress of the guide elements 8th on the inner groove edges 9e generated, whereby the precision of the motion control is improved.

5a and 5b show in four views I. to IV. The control device 10 according to the previous embodiments, in addition by permanent magnets 25.1 . 25.2 have a blocking function, by interacting with the in the bearing block 18 arranged another set of permanent magnets 26.1 . 26.2 ., As explained in detail below.

In 5a is the controller 10 shown such that the staple arms 3 (not shown) are in an open position. It shows view I. the 5a a sectional view, view II. The 5a a view from the bottom 1b of the support element 1 , View III. of the 5a a side view and view IV. The 5a another bottom view of the storage block 18 with its permanent magnet 26.1 and 26.2 and the controller 10 with their permanent magnets 25.1 and 25.2 , Views I. to IV. Of 5b correspond to those of 5a , where in 5b the control 10 such about the longitudinal axis B of the control device 10 turned that is the staple arms 3 (not shown) are arranged in a closed and locked, ie gripping position to each other.

The storage block 18 has holes 20 on, by which he on the support element 1 is fixed by screws (not shown). The one in the warehouse block 10 introduced set of permanent magnets 26.1 . 26.2 is fixed in this. The permanent magnets 26.1 . 26.2 are in their position relative to the support element 1 and to the controller 10 unchangeable. In the warehouse block 18 is a plain bearing 22 and a shaft stub 21 provided on which the drive device 12 is coupled to the controller 10 to rotate about the longitudinal axis B. In an alternative embodiment, no additional sliding bearing is required if, for example, the bearing block 10 itself made from such a suitable plain bearing material.

The in the control device 10 arranged permanent magnets 25.1 . 25.2 run together with this about this longitudinal axis B and undercut in the embodiment shown in its circumferential movement of the bearing block 18 and its permanent magnets 26.1 . 26.2 , The poles of the two sets of permanent magnets are aligned such that face the opposite permanent magnets of the bearing block 18 on the one hand and the control unit 10 on the other hand repel each.

In both end positions, as in 5a and 5b shown, the two sentences remain 25.1 . 25.2 and 26.1 . 26.2 the permanent magnets spatially arranged so close to each other that the repulsive magnetic forces are constantly effective and so a permanent torsional force on the control 10 is exercised. Here are present reasons of symmetry in the bearing block 18 and in the control unit 10 two permanent magnets provided. In a simplified embodiment, in each case only one permanent magnet in the bearing block 18 and in the rotatable control unit 10 intended.

The particular advantage of this locking device is that a certain force peak must be overcome in order to enjoy the end position (open gripper). 5a in the locked end position like. of the 5b to get. Furthermore, it is very beneficial for smoothness and process reliability that due to the magnetic repulsion in both end positions of the pivoting movement of the control device 10 , a permanent magnetic force for obtaining the respective end position is caused.

In an alternative embodiment, the local, non-rotating permanent magnets are in or on the support element 1 itself and radially outside of the control unit 10 and / or an independent receiving and supporting element outside of the bearing block 18 arranged. When positioning the local permanent magnets 26.1 . 26.2 radially outside the rotational path of the permanent magnets 25.1 . 25 . 2 , the arrangement is adapted analogously to achieve the same effects and advantages.

In a further advantageous, but not shown embodiment, the permanent magnets are aligned such that they act attractive in the detection position, so that the holding force would be higher for identical magnets than in the aforementioned variant. Furthermore, it is possible to dispense with the end stop in the guide groove, because on the one hand a gripped container, such as a bottle serves as a stop and on the other hand, the permanent magnets ensure that an aligned, stacked layer represents a very stable position. In this way, the operating noise is further reduced.

Leading is a vertical orientation of the support element 1 with top 1a and bottom 1b as well as the relative position thereof, for example, the control unit 10 , the staple arms 3 or the storage block 18 been described. It goes without saying for the person skilled in the art that even an arrangement rotated by 180 ° and analogous construction is possible and meaningful.

LIST OF REFERENCE NUMBERS

1

supporting member

1a

Surface of the support element

1b

Bottom of the support element

2

Bin Retainer

3

clip arms

4

cross section

5

control section

5a

outer end control section

6

rotational axes

6a

first end of rotation axis

7

storage unit

8th

guide elements

9

cams

9a

first section cam

9b

second section cam

9c

third section cam

9d

outer groove flank

9e

inner groove flank

10

control device

11

Force increase site

12

driving device

13

coupling unit

14

control lever

15

Recess supporting element for control device

18

bearing block

20

drilling

21

shaft stub

22

bearings

25.1,

25.2 Permanent magnets of the control unit

26.1,

26.2 Permanent magnets of the bearing block

A

Center axis container clamp

B

Longitudinal axis control device

Claims (17)

Transport device for containers, in particular bottles with a neck ring, at least comprising - a substantially horizontally oriented support element ( 1 ), - one on the support element ( 1 ) arranged container clamp ( 2 ) for holding a container with two each about an axis of rotation ( 6 ) in a first horizontal plane pivotable clip arms ( 3 ), - one on the support element ( 1 ) in a second horizontal plane rotatably mounted control device ( 10 ) with arcuate cams ( 9 ), - each staple arm ( 3 ) with a guide element ( 8th ) in one of the cams ( 9 ), - the staple arms ( 3 ) by means of a rotary movement of the control device ( 10 ) are pivotable between an opening position and a detection position, and - the first and second planes are identical or substantially parallel to each other. Transport device according to claim 1, characterized in that the clamping arms ( 3 ) are integrally formed. Transport device according to one of the preceding claims, characterized in that each clamping arm ( 3 ) a dimensionally stable gripping portion ( 4 ) and / or a resilient control section ( 5 ) having. Transport device according to one of the preceding claims, characterized in that in the detection position in the control cams ( 9 ) mounted guide elements ( 10 ) Have the greatest possible distance from each other and / or in the opening position a smallest possible distance from each other. Transport device according to one of the preceding claims, characterized in that the control cam ( 9 ) a force increase point ( 11 ) for locking the clamp arms ( 3 ) in a predetermined position. Transport device according to one of the preceding claims, characterized in that each arcuate control cam ( 9 ) have at least three sections merging into one another with different radii or the radius profile follows a function. Transport device according to one of the preceding claims, characterized in that this as a transport star with a in the direction of rotation on the support element ( 1 ) juxtaposed plurality of container bracket ( 2 ) is trained. Transport device according to one of the preceding claims, characterized in that the bearing of the axis of rotation ( 6 ) and the storage of the control device ( 10 ) in a single support element ( 1 ) of the transport device takes place. Transport device according to one of the preceding claims, characterized in that the axes of rotation ( 6 ) in a tool-exchangeable storage unit ( 7 ) in or on the support element ( 1 ) are arranged. Transport device according to claim 9, characterized in that the storage unit ( 7 ) made of plastic, metal or ceramic. Transport device according to one of the preceding claims, characterized in that the clamping arms ( 3 ) are made of chemical-resistant metal or plastic or chemical-resistant, fiber-reinforced plastic. Transport device according to one of the preceding claims, characterized in that the control unit ( 10 ) at least one permanent magnet rotatable with it ( 25.1 ) and further at least one local, non-pivotable permanent magnet ( 26.1 ) is provided such that this at least one rotatable permanent magnet ( 25.1 ) during the rotational movement of the control unit ( 10 ) from one end position to another end position at the local permanent magnet ( 26.1 ) is vertically and / or radially movable past. Transport device according to claim 12, characterized in that the at least one permanent magnet ( 25.1 ) of the control unit ( 10 ) and the at least one local permanent magnet ( 26.1 ) are oriented with respect to their magnetic polarity so that they repel each other when approaching. Transport device according to claim 12 or 13, characterized in that the at least one permanent magnet ( 25.1 ) of the control unit ( 10 ) and the at least one local permanent magnet ( 26.1 ) are oriented with respect to their magnetic polarity in at least one end position spaced from each other, that they repel each other even in rest position from each other permanently and repel permanently in particular in both end positions by magnetic forces. Transport device according to one of claims 12 to 14, characterized in that the at least one local permanent magnet ( 26.1 ) a warehouse block ( 18 ) of the drive device ( 12 ) for the control device ( 10 ) is arranged. Transport device according to one of claims 12 to 15, characterized in that two permanent magnets ( 25.1 . 25.2 ) in the rotatable control device ( 10 ) and two local permanent magnets ( 26.1 . 26.2 ) on the support element ( 1 ) or attached thereto receiving and supporting element are provided. Transport device according to one of claims 12 to 16, characterized in that the at least one permanent magnet ( 25.1 ) of the control unit ( 10 ) at the at least one local permanent magnet ( 26.1 ) can be moved past, when changing from one end position to the other end positions of the control unit ( 10 ).

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