DE202007005345U1 - Device for joining screw-on lid to fluid container, comprises plate guiding bars simultaneously - Google Patents

Abstract

The container (10) is moved on a conveyor belt (6) to the lid attaching station (2) and clamped in between two jaws (12,14). Four rotating disks (26a,26b,26c,26d) at the lower ends of bars (28) with swivel joints (30) are driven by an electric motor (34) located at the opposite end and acting on a serrated belt (32). The motion of the bars (28) and the attached disks (26a,26b,26c,26d) towards the lid (20) is synchronized by a plate (38) vertically moved by two lift cylinders (40).

Description

The The invention relates to a Schraubkappenmontagevorrichtung with a container holder for holding a container transported on a container conveyor and a cap screwdriver with drive elements attached to rods for screwing on a container cap on the container.

at a bottling of a detergent in it provided container These containers will open a conveyor belt to a filling station drove, which fills the cleaning agent in the container. Subsequently, will the container closed with a screw cap, which is initially placed on the container and then bolted to the container by a screwing motion. For this It is known, a screwing fully automatically on a cone-shaped container cap put on, so that the screwing form-fitting in engages a corresponding shape of the container cap and the Screw on screw cap. For this purpose, the screwing from above on the container cap put on the container cap is with the container bolted and the tool moves back up to the container for one further transport on the conveyor belt release.

Become In one operation different detergents are made, so these usually in different containers with different container caps filled. Is in a filling line first a first container type with a first container cap filled and subsequently a second container type with a different container cap, so the corresponding screw cap mounting device must be retrofitted in such a way that the screwing tool for the first type of container against a screwing tool for the second container type is exchanged.

to Reduction of this conversion effort it is known screwing tools like a chuck provide suitable for attachment to different screw caps are. Such a solution is however for container caps with a pump dispenser, a spray head or the like unsuitable.

It It is therefore an object of the present invention to provide a Schraubkappenmontagevorrichtung the universal for different container caps can be used with dosing devices, pump dispensers, spray heads or the like is.

These The object is achieved by a Schraubkappenmontagevorrichtung the beginning solved kind, in which the cap screwdriver has a control means guiding the rods, its unified movement a movement of the drive elements to each other to be attached to the container cap causes. The for turning the container cap provided drive elements can on the side of the container cap to be moved, taking under a spray head or the like. By the control means can with a uniform movement a synchronous Movement of the drive elements can be achieved without any of the Drive elements of a separate control means, for example an eccentric or a linear motor, would have to be driven. It This makes it a simple, robust and universally applicable Screw cap mounting device for different container caps can be achieved, the screwing on different container caps no conversion requires the screwing.

Of the known from the prior art positive connection of the screwing with the container cap can by a frictional engagement of the drive elements with the container cap be replaced, where - um against forces to record - one Plurality of drive elements laterally on the container cap be created. By dispensing with the placement of the screwing from above and by instead carried out lateral application of the Drive elements to the container cap is the geometry of an upper part of the container cap with a spray head, pump dispenser or the like within certain parameters largely irrelevant, making a universal use of the screw cap mounting device for one Variety of different container caps can be achieved.

The Control means leads to move the drive means a uniform motion. By this it is meant that an abutment movement of the drive elements, So a movement of the drive elements towards each other to the plant to the container cap, through the movement of a single element of the control means, for example a control plate, or one during causes the investment movement rigidly connected element composite can be. A movement of the drive elements towards each other several individually driven elements can be avoided and it can a simple and robust drive can be achieved.

The Drive elements are advantageously individually around themselves rotatable for driving the screwing movement. The rods can be elongated carriers of Be driving elements and any rod-like shape, for example straight or curved, and have any suitable profile.

The contact movement of the drive elements to the container cap is preferably achieved by a pivoting movement of the rods, whereby a simple storage of the rods can be achieved. The Trajectory traversed by the drive elements is expediently a path on a spherical surface or a circular path section.

The Movement of the control means guiding the rods for generating the abutment movement may be a rotation, wherein the Rods are guided in one or more contours of the control means.

A easy storage of the rods in the control means and also a simple designed control means can be achieved when the movement of the Control means for moving the drive elements to each other along the rods takes place. The movement of the control means is here expediently at least substantially perpendicular to the contact movement of the drive elements.

One Gripper for gripping a workpiece usually has three gripping elements on which the workpiece at three 120 ° from each other grab spaced spaces. By such a three-point grip is the workpiece safe and without an over-determination held the handle position. In deviation from this usual Principle are the drive elements in an advantageous embodiment the invention four drive elements for contact with the container cap in four places. This allows the drive elements so arranged around the container cap around be that container cap with an easy opening the drive elements driven between the drive elements can be, so when transporting the container on a conveyor belt there is no drive element in the way. In addition, by four drive elements a higher friction force on the container cap be applied, which in particular with large container caps, which with a high Torque to be attracted is beneficial.

The four abutments are advantageously at least 2 × 2 at least substantially opposite points. By the pair opposite can contact forces or opposing forces without a big one Mechanical stress of the cap holder can be easily collected. Such a contrast is guaranteed even then if the deviation from a geometrically exact comparison not more than 20 °.

In According to a further embodiment of the invention, the control means guides the rods always inclined to each other in the control means immovable bearings. The closing the drive elements in an investment movement and opening the Drive elements can be effected mechanically simple. The immobility the camp can by attaching the bearing in Steuermit tel take place, or in that the control means, for example a Control plate, the bearing or its outer bearing shell itself forms.

A mechanically robust and easy to manufacture realization of the control means can be achieved when the control means a control plate with openings is, through which the rods are passed.

A easy storage of the rods in the control means can by plain bearings be achieved. By the mutually inclined position of the rods varies the inclination of the rods upon actuation of the control means. Around here a material-saving storage and an exact guidance of the To achieve rods in the control means, the sliding bearings are advantageously stored in a pivot bearing, the pivotal movement of the rods stores, and in particular a two-dimensional pivotal movement stores. It can be a change of inclination guided and can be balanced with little friction.

By an execution The rods as rotatable shafts can be a simpler and more robust Drive the drive elements via the waves take place.

The Number of motors of Schraubkappenmontagevorrichtung can be low are held, if this has a motorized rotary drive through the drive elements are driven synchronously. A synchronous one Drive can be easily controlled by a timing belt for driving force distribution take place on the drive elements. The timing belt, for example a toothed belt, this is driven by the motorized rotary drive and surrounds, for example, connected to the rods gears so that when moving the timing belt all drive elements the same rotate quickly.

In a further advantageous embodiment of the invention the rotary drive a torque clutch for disengaging the drive elements from a motor rotation at an adjustable torque. The Torque with which the container cap on the container can be screwed on, can be adapted to different container caps become. The torque coupling may be a magnetic dust clutch and is advantageously controlled by a computing unit, so that a torque selection using a control program done can. In a simpler version, the desired torque is by hand set.

If the rods are connected via gimbal joints with the rotary drive, the rods in the region of the drive elements can be inclined to each other and connected to the rods drive heads for driving the rods can for easy power transmission from the rotary drive to the drive be executed in parallel heads.

advantageously, the cap screwdriver is designed so that a movement of the Control means along the rods release opening the drive elements so far causes the container cap perpendicular to the movement of the drive elements between the drive elements be passed is. The container can with screwed on container cap through the funding be removed from the field of cap screwdriver, without that the drive elements in addition removed, for example, would have to be raised. Here are the drive elements expediently an at least 3 cm wide gap, leaving a container cap with a diameter of almost 3 cm between the drive elements be passed is.

In a further advantageous embodiment of the invention are the drive elements in an investment in a circular reservoir cap spaced far apart. It can too larger container caps be transported through the drive elements, without the Open drive elements wide have to.

Around a safe operation during a Screwing a variety of containers to ensure it is known the containers before an introduction to singulate in the Schraubkappenmontagevorrichtung, so always only a single container in the screw cap mounting device retracts. A necessary for this Separator can be saved when the Schraubkappenmontagevorrichtung is capable of the container cap on the container unscrew, even if more containers from the rear immediately to the currently processed container approach or already abut it. This is the problem that are on the container cap to moving drive elements the next container or touch its cap or even the container upset.

This Problem can be solved be that the rear with respect to a container conveying direction drive elements in drive position, ie in abutting position on the container cap on spaced apart from each other as the front drive elements. Due to the larger distance the rear drive elements can this from the next container kept away from one another as it does not move so far toward each other and attach to the front of the container cap to be screwed.

Generally Thus, an asymmetrical drive position of the drive elements is spoken with respect to a plane perpendicular to the cap center conveying line and symmetrical to the cap center conveyor line.

Around Do not move the front drive elements too far apart to have to for one Release of the container cap, It is advantageous if they are in a circular at an investment Container cap on spaced apart as a front and adjacent rear Drive element. These two lateral drive elements are available so closer together as the two front drive elements and in particular as the two rear drive elements.

Around the space requirement of Schraubkappenmontagevorrichtung in a release position To keep the drive elements low, it is advantageous if the drive elements in a release position in which they are released the container cap rest, equidistant from each other. Here it is sufficient if at least substantially the same distance from each other are spaced, the asymmetry in the geometry of their position to each other, in particular the distance difference, in the release position that is less than in the drive position.

Conveniently, is an opening movement the drive elements from a - for example as described above - to each other asymmetrical drive position in a symmetrical to each other Release position by a movement of the control means causes in which the rods are stored. Such a robust and cost-effective Drive the drive elements can by a corresponding bearing geometry the bearing, so the arrangement form of the bearings in the control means achieved become.

The universal usability of Schraubkappenmontagevorrichtung can be further increased when the cap holder during the Cap mounting rests vertically and to adapt to different containers is movable. It can high and low tanks with appropriate container caps be screwed, the cap holder during a conversion from a container cap is moved to another vertically, in particular vertically to a movement of the drive elements towards each other. The vertical one Procedure can be done by hand or by a control program automatically carried out become.

During one Screwing the container cap on the container becomes the container through the container holder held, so that the container too upon further movement of the container conveyor in a desired Position is fixed. For this purpose, the container holder expediently comprises two pegs holding the container by a relative movement of the jaws toward each other between them pinch.

One simple drive of the container holder is reachable when the container holder a static and a movable jaw for clamping the container in between having the cheeks. As a result, only the movable jaw has to be driven be stored with the second jaw fixed cost can. The fixation and movable storage is relative to a rest point of Schraubkappenmontagevorrichtung or the Environment to see.

One stronger Slipping of the container on the subsidy while a pinching operation can be avoided if the moving Cheek has a thicker elastic coating to rest on the container as the static cheek. The thinner elastic Surface is pressed in relatively weakly and a secure hold of the container becomes main achieved by the moving thicker elastic covering.

This Advantage can also be achieved or increased when the movable Bake a coating to rest on the container from a more elastic Material has as the static jaw. The example very Soft coating of the movable jaw can be far when attached to the container be pressed in, so that the coating on a large area Container is present and this, for example, even embraces a piece.

One open-pored foam padding can protect against wear and against Reduce the grip of the elastic covering to be protected when he at least on the container side provided with a silicone coating. Grease and dirt deposits on the elastic covering can kept low and a grip of the two pads can be kept high. The silicone coating is expediently here from a two-component silicone manufactured.

at a push of the container The static or fi xed jaw may cause the container something on the cheek, or its elastic covering, adheres. The solvency to detach of the container from the static jaw then has to be applied by the conveyor that the container transported further. To assist in this dissolving process includes the Schraubkappenmontagevorrichtung expediently a release element to detach of the container from the static cheek. This is advantageously portable and presses the container away from the static cheek.

A simple realization of the release element is achieved by a spring element, which in a relaxation movement the container pushes away from the static cheek.

On an additional release element can be omitted if the release element a Behälterförderbahnbegrenzer is. A container conveyor track limiter Hold the container on the subsidy and is constructed, for example, like a kind of railing on the conveyor. Becomes the container conveyor track limiter a push of the container to the static jaw from the container something outward pressed so presses the container conveyor track delimiter the container when solved moving jaw away from the static jaw and loosen the container from this cheek.

Conveniently, For example, the screw cap mounting device includes a computing unit for control of the container holder and the drive elements.

In a further variant of the invention, the Schraubkappenmontagevorrichtung a sensor for detecting a position of a beak the container cap is positioned, the arithmetic unit being prepared to the container holder and to control the drive elements such that the container holder the container after attaching the container cap releases and the drive elements the container by turning the container cap Turn that until the beak reaches a predetermined, from the sensor detected direction points. In this way, the drive elements for both Tighten the container cap on the container as well as for aligning the entire container can be used in such a way that the container with his container cap be easily promoted can.

The Invention is also advantageously applicable in a method for mounting a container cap on a container, where the container is on to a container conveyor a container holder moves becomes, the container holder the container holds and a cap screwdriver with drive elements attached to rods the container cap on the container unscrewing. The method is advantageous and universal to various Types of containers and container caps applicable when the drive elements by a movement of a control means of the cap screwdriver along the rods to the container cap be created.

The Invention is based on embodiments explained in more detail, the are shown in the drawings.

It demonstrate:

1 a screw cap mounting device with four drive elements for screwing container caps,

2 the Schraubkappenmontagevorrich tion in a side view,

3 a schematic plan view of the four applied to a screw cap drive elements,

4 the four drive elements off 3 in their release position,

5 to 9 a schematic plan view of a three container transporting container conveyor and a sequence of screwing a screw cap on one of the container by means of the four drive elements.

1 shows a Schraubkappenmontagevorrichtung 2 on a container conveyor 4 who is a conveyor belt 6 and two container conveyor track delimiters 8th includes. On the conveyor belt 6 there is a container 10 that of two baking 12 . 14 a container holder 16 is trapped holding it, so that it is over in the conveying direction 18 moving conveyor belt 6 slips.

The container 10 is a bottle cleaner, which is a container cap 20 with a spray head 22 having. The container cap 20 is on an upper threaded extension of the container 10 put on and must to close the container 10 be screwed with the threaded extension with a specified torque. For this purpose, the Schraubkappenmontagevorrichtung includes 2 a cap screwdriver 24 with four drive elements 26a -D, each on a pole 28 are attached.

The bars 28 are rotatable shafts, each with a gimbal joint 30 with a timing belt designed as a timing belt 32 are connected, which is applied tightly around a respective non-visible gear of the waves. One of the waves is directly by means of a motor 34 driven, the driving force on this shaft via the gear of this shaft, the timing belt 32 and the gears of the remaining three waves are distributed to all four waves, so that all four rods 28 from the engine 34 can be driven synchronously.

With the help of a torque coupling 36 can be a maximum torque with which the drive elements 26a -D are to be driven. Is a resistance that the drive elements 26a -D oppose the engine power, so large that the maximum torque is exceeded, so couples the torque clutch 36 out, and the frictional connection of the engine 34 to the drive elements 26a -D is broken.

At the in 1 shown position of the drive elements 26a -D push it from four sides to the container cap 20 and screw them in a rotary drive through the engine 34 on the container 10 firmly. To the container 10 then release, are the drive elements 26a -D around the joint centers of the gimbal joints 30 pivotable outwards into a release position. To drive this pivoting movement includes the cap screwdriver 24 a control means 38 in the form of a control plate, which has two lifting cylinders 40 motor driven is vertically movable. The motor drive can be pneumatic or for example via a linear motor and the lifting movement can be limited by sensors, not shown. Alternatively, a middle lifting cylinder is conceivable, which is guided on both sides by running guide means, such as rods.

At the plate of the tax agent 38 are four camps 42 immovably fastened, each comprising a pivot bearing and a sliding bearing therein. The pivot bearings have as inner bearing shell a spherical cap in the form of a ball with missing pole pieces, in their place the rods 28 are. The outer bearing shell has a corresponding spherical-koncaves bearing surface on which the spherical cap slides three-dimensionally movable along, namely with two pivot degrees of freedom and a rotational degree of freedom, but due to the lack of rotatability of the rods 28 not used. The inner bearing shell simultaneously forms the outer bearing shell of the inner translational sliding bearing, along the cylindrical inner surface of a rod 28 along slides. That's how the rods are 28 both vertically displaceable and pivotable in the camps 42 stored.

The centers of the plain bearings of the bearings 42 , each in the center axis of the rods 28 lie, are perpendicular to a stroke direction 44 of the tax money 38 each spaced slightly further apart than the joint centers of the gimbal joints 30 , This is the rods 28 always arranged inclined to each other, wherein the angle of inclination by the vertical position of the control means 38 is adjustable. In addition, the centers in the plate of the Steuermit means 38 arranged in their geometry relative to each other to the arrangement geometry of the joint centers so that the in 3 illustrated asymmetrical drive position and the in 4 illustrated symmetrical release position of the drive elements 26a -D is reached.

The movement of the drive elements 26a -D from its drive position to its release position is in 2 shown, the screw cap mounting device 2 in a page presentation shows. By a movement of the control means 38 from the lower, shown in solid position, in which the drive elements 26a -D in its drive position pressed against the container cap 20 are, in the upper, dashed position shown, the rods 28 pivoted outwards and the drive elements 26a -D brought to its release position. Here, the drive elements move 26a On a track of a spherical surface, in particular of a circular path section, with a center in the joint center of the respective gimbal joint 30 ,

The size of the opening angle 46 between the bars 28 depends on the lifting height 48 of the tax money 38 , The other way around is the closing angle 50 by the lifting height 48 with which the control means 38 moves down from the top possible position shown in dashed lines, adjustable. As a result, the drive position of the drive elements is also 26a -D adjustable and adaptable to different sized container caps. Of course, the upper position of the control means is also 38 adjustable and does not always have to be the highest possible position, as possibly a smaller release opening between the drive elements 26a -D for passing the container cap 20 is sufficient. With a width of the container cap 20 For example, 3 cm, open the drive elements 26a -D so far that between the rear drive elements 26a . 26d and the front drive elements 26b . 26c For example, there is a distance of, for example, 6 cm, so that they are about 1.5 cm to the right and left of the container cap 20 are spaced.

The upper position of the control means 38 in which the drive elements 26a -D are kept stationary in their release position, and the lower position in which the drive elements 26a -D in its drive position to the container cap 20 are pressed, are determined by a control program that in a memory of a computing unit 52 is stored. If that is the case cap 20 adjusted maximum torque, above which the torque coupling 36 disengages, not to be adjusted by hand, the control program also includes maximum torque, and one to the container cap 20 associated rotational speed of the motor 34 or the drive elements 26a d.

A high universality of the screw cap mounting device 2 is among other things given by the fact that in the arithmetic unit 52 stored program for screwing several different container caps 20 . 54 . 56 is designed and has corresponding control data. With the help of an input device 58 For example, four buttons or a selector switch, an operator can select a corresponding program section, so that the Schraubkappenmontagevorrichtung 2 now on a specific container cap 20 is aligned. The upper and lower positions of the control means 38 , the maximum torque and optionally a rotational speed of the drive elements 26a -D are now set.

Additionally in the control program can be a vertical position of the cap screwdriver 24 be fixed on a sledge 60 relative to, for example, the arithmetic unit 52 , to the container conveyor 4 or a floor 62 on which the screw cap mounting device 2 stands, is vertically movable. In this way, the vertical position of the drive elements 26a -D to the container size or the height of the container cap 20 above the conveyor belt 6 be set. The vertical moving of the cap screwdriver 24 can be manual or motorized, controlled by the arithmetic unit 52 , happen.

3 shows the four drive elements 26a -D in a schematic plan view from above without the rods 28 , attached to the container cap 54 a container 64 for detergent. The container cap 54 is in place of the spray head 22 with a valve 66 equipped and easily dosed with the detergent, which can be removed from the container 64 can be removed.

3 shows the drive elements 26a -D in its drive position to the container cap 54 pressed, with different distances between them 68 . 70 . 72 are set. Such is the rear distance 68 with for example 2 cm almost twice as large as the front distance 70 with 1.2 cm, which in turn is larger than the lateral distance 72 for example, 0.7 cm. As a result, on the one hand ensures that the drive elements 26a . 26c and 26b . 26d in pairs, at least substantially on the container cap 54 face each other, so that the contact pressure of each one of the drive elements 26a -D from the opposite drive element 26a -D is essentially taken alone. On the other hand it is achieved that the two rear drive elements 26a . 26d spaced as far as possible from a subsequent container 64 , see for example 7 , so that touching or even overturning this subsequent container 64 through the rear drive elements 26a -D can be counteracted.

Also the front drive elements 26b . 26c are relatively far apart, so that they with as small a pivoting movement of the transport path of the container cap 54 can be moved out. So can a fast opening and closing of the drive elements 26d . 26c be achieved for a quick assembly process. The respective laterally arranged drive elements 26a . 26b and 26d . 26c can be positioned very close to each other, allowing for the front and rear distance 66 . 68 as much space as possible remains.

Due to the asymmetrical drive position of the drive elements 26a -D to each other or to a cap center 74 the container cap 54 , at they are their centers 76 different far from a cap center conveyor line 78 removed, with the distance 80 the rear drive elements 26a . 26d from the cap center conveyor line 78 is greater than the distance 82 the front drive elements 26a . 26d from the cap center conveyor line 78 ,

4 shows the drive elements 26a -D in its release position, where - to keep the mounting space requirement low - they are all equidistant from the cap center conveyor line 78 are removed and in particular symmetrical to each other or the cap center 74 and can be arranged equidistant from each other. Such are the centers 76 the drive elements 26a -D to each other parallel to the cap center conveying line 78 arranged as through the two dash-dotted auxiliary lines through the centers 76 in 4 is indicated.

The symmetrical release positions and the asymmetrical drive positions of the drive elements 26a -D are determined by the arrangement geometry of the bearings 42 in the metallic plate of the control means 38 relative to an arrangement geometry of the joint centers of the cardan joints 30 reached. Here, the arrangement geometry of the joint centers is different than that of the bearings 42 , However, the mutually symmetrical release positions are realized only a single position of the control means, which is tailored for example to an average cap size, so that the associated cap easily between the drive elements 26a -D is passed.

The 5 to 9 show an assembly process on a container 84 with the container cap 56 holding a liquid soap dispenser with a beak 86 wearing. Shown in a plan view is the conveyor belt 6 of the container conveyor 4 and in a schematic way, the two jaws 12 . 14 of the container holder 16 , For the sake of clarity, only the elastic part of the jaws 12 . 14 made of a foam, which is surrounded by a two-component silicone, wherein the in 1 shown carrying elements 88 and the motor drive 90 in the 5 to 9 was waived. In the plan view is the back jaw 14 both under the drive elements 26c . 26d as well as under one of the container conveyor track delimiters 8th represented, with the hidden outlines of the cheek 14 dashed lines are shown for clarity. Likewise, the front cheek became 12 shown.

On the continuously moving conveyor belt 6 For example, three containers 84 directly behind each other to the cap screwdriver 24 transported. Once the container cap 56 of the foremost container 84 reaches a predetermined position, this is from a sensor 92 ( 1 ), which sends a corresponding signal to the arithmetic unit 52 sends. This controls the motor drive 90 of the container holder 16 so that the movable jaw 12 on the container 84 to proceed. This will make the container 84 between the two cheeks 12 . 14 sandwiched, like this in 6 is shown.

In very close together containers 84 becomes the next following container 84 also between the two cheeks 12 . 14 clamped so that it stops safely and even when touching the beaks 86 only the back beak 86 something is moved, but not the entire container 84 can be overturned.

The cheek 12 is here by her elastic material through the container 84 pushed in further than the cheek 14 so the cheek 12 the container 84 embraces a piece. In addition, the container 84 due to the lower elasticity of the immovable jaw 14 a little way towards the immovable cheek 14 pressed and displaces this one of the two Behälterförderbahnbegrenzer 8th around a spring line 94 outward.

Now the drive elements 26a -D by lowering the control means 38 from her to the 5 and 6 shown release position moves toward each other and at four points to the container cap 56 pressed, as in 7 is shown. By a movement of the engine 34 become the driving elements 26a -D driven rotationally counterclockwise, so that thereby the container cap 56 clockwise on the external thread of the container 84 screwed on and on the container 84 is tightened until the resistance to the container cap 56 the rotation of the drive elements 26a -D, an increase in torque over the preselected torque within the torque clutch 36 or the torque limiter - which may be a predetermined torque in the control program - causes. This will cause the flow of power from the engine 34 to the container cap 56 through the torque coupling 36 interrupted and unscrewing the container cap 56 on the container 84 completed.

The beak 86 of the container 84 here has an example as in 8th shown position oblique to the conveying direction 18 reached. Now the beak can 86 in a predetermined direction, for example, aligned forward. This is particularly advantageous for further processing steps of the container 84 , So these can be from the container conveyor 6 be inserted in the predetermined orientation in a labeling device, so that labels in always the same position to the beak 86 all containers 84 is applied.

For aligning the beak 86 becomes the movable cheek 12 from the container 84 solved, as in 8th is shown. The container conveyor tracker limiter 8th Now press the container 84 springy from the little dented cheek 14 away, leaving the container 84 from the cheek 14 is detached. This is advantageous when aligning the container 84 not necessary, the drive elements 26a -D would be open and the conveyor belt 6 the container 84 transported further to sticking the container 84 on the non-slip silicone coating of the cheek 14 to prevent.

At the in 8th example shown remain the drive elements 26a -D, however, in its drive position and rotate the container 84 - with loosened jaws 12 . 14 - continue clockwise until the beak 86 in the 8th shown dashed, has taken forward position. This is from a second sensor 96 ( 1 ) which detects a corresponding control signal to the arithmetic unit 52 sends, turning the drive elements 26a -D stops. To avoid detection errors, it may be useful in an alternative method to the container 84 continue to rotate after detection, for example by 360 °, and a new recognition by the sensor 96 eg to compare with the rotation angle of 360 °. If the re-detection occurs at a rotation angle of 360 °, the rotation is stopped.

Now the control moves 38 back up and swing the rods 28 to the outside, so that the drive elements 26a -D in her in 9 shown release position to be moved. The three containers 84 can now be free from the conveyor belt 6 continue to move until the next container 84 that from the sensor 92 reaches predetermined position and closing the jaw 12 from the arithmetic unit 52 is controlled.

The procedure, whether a container cap 20 . 54 . 56 or her beak 86 after tightening the container cap 20 . 54 . 56 is still aligned, as in 8th is represented by the control program or its program part in the arithmetic unit 52 determined by the operator by a corresponding operation of the input means 58 chooses. Is not an alignment of the beak 86 required, so proceeding - starting from the in 7 illustrated situation - the drive elements 26a -D in their release position before the jaws 12 . 14 the containers 84 release so that the drive elements 26a -D away from the container cap 56 are before the container on the conveyor belt 6 is moved on.

2

Schraubkappenmontagevorrichtung

4

container conveyor

6

conveyor belt

8th

Behälterförderbahnbegrenzer

10

container

12

jaw

14

jaw

16

container holder

18

conveying direction

20

reservoir cap

22

spray nozzle

24

cap wrench

26a-d

driving element

28

pole

30

joint

32

timing belt

34

engine

36

torque coupling

38

control means

40

lifting cylinder

42

camp

44

stroke direction

46

opening angle

48

Lifting height

50

dwell

52

computer unit

54

reservoir cap

56

reservoir cap

58

input means

60

carriage

62

floor

64

container

66

Valve

68

distance

70

distance

72

distance

74

cap center

76

center

78

Cap center line of funding

80

distance

82

distance

84

container

86

beak

88

carrying member

90

drive

92

sensor

94

spring track

96

sensor

Claims (26)

Screw cap mounting device ( 2 ) with a container holder ( 16 ) for holding on a container conveyor ( 4 ) transported container ( 10 . 64 . 84 ) and a cap screwdriver ( 24 ) with rods ( 28 ) fastened drive elements ( 26a -D) for screwing on a container cap ( 20 . 54 . 56 ) on the container ( 10 . 64 . 84 ), with the caps screwdriver ( 24 ) the rods ( 28 ) leading control means ( 38 ), the uniform movement of which is a movement of the drive elements ( 26a -D) towards each other for abutment with the container cap ( 20 . 54 . 56 ) causes. Screw cap mounting device ( 2 ) according to claim 1, characterized in that the movement of the control means ( 38 ) for moving the drive elements ( 26a -D) move towards each other along the bars ( 28 ). Screw cap mounting device ( 2 ) according to claim 1 or 2, characterized in that the drive elements ( 26a -D) four drive elements ( 26a -D) are to be attached to the container cap ( 20 . 54 . 56 ) in four places. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that the control means ( 38 ) the rods ( 28 ) are always inclined to one another in the control means ( 38 ) immovable warehouses ( 42 ) leads. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that the control means ( 38 ) is a control plate with openings through which the rods ( 28 ) are passed. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that the rods ( 28 ) in the control means ( 38 ) are mounted in a pivot bearing mounted plain bearings. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that the rods ( 28 ) are rotatable shafts. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized by a motorized rotary drive, by which the drive elements ( 26a -D) are driven synchronously. Screw cap mounting device ( 2 ) according to claim 8, characterized in that the rotary drive a timing belt ( 32 ) for driving force distribution to the drive elements ( 26a -D). Screw cap mounting device ( 2 ) according to claim 8 or 9, characterized in that the rotary drive is a torque coupling ( 36 ) for disengaging the drive elements ( 26a -D) from a motor rotation at an adjustable torque. Screw cap mounting device ( 2 ) according to one of claims 8 to 10, characterized in that the rods ( 28 ) via gimbal joints ( 30 ) are connected to the rotary drive. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that a movement of the control means ( 38 ) along the bars ( 28 ) a release opening of the drive elements ( 26a -D) causes the container cap ( 20 . 54 . 56 ) perpendicular to the movement of the drive elements ( 26a -D) between the drive elements ( 26a -D) can be passed. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that the drive elements ( 26a -D) when attached to a circular container cap ( 20 . 54 . 56 ) are spaced far apart from each other. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that the rear drive elements with respect to a container conveying direction ( 26a , d) are spaced further apart in the drive position than the front drive elements ( 26b , c). Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that in a system of the drive elements ( 26a -D) on a circular container cap ( 20 . 54 . 56 ) two with respect to a container conveying direction ( 18 ) front drive elements ( 26b , c) are spaced further apart than a front and rear drive element ( 26a d). Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that the drive elements ( 26a -D) in a release position in which they are used to release the container cap ( 20 . 54 . 56 ), equidistant from each other. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that an opening movement of the drive elements ( 26a -D) from a mutually asymmetrical drive position in a mutually symmetrical release position by a movement of the control means ( 38 ), in which the rods ( 28 ) are stored. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that the cap holder ( 24 ) rests during a cap assembly and to adapt to various containers ( 10 . 64 . 84 ) is vertically movable. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized in that the container holder ( 16 ) a static jaw ( 14 ) and a movable jaw ( 12 ) for clamping the container ( 10 . 64 . 84 ) between the jaws ( 12 . 14 ) having. Screw cap mounting device ( 2 ) according to claim 19, characterized in that the movable jaw ( 12 ) a thicker elastic covering for attachment to the container ( 10 . 64 . 84 ) than the static jaw ( 14 ). Screw cap mounting device ( 2 ) according to claim 19 or 20, characterized in that the movable jaw ( 12 ) a covering for attachment to the container ( 10 . 64 . 84 ) of a more elastic material than the static jaw ( 14 ). Screw cap mounting device ( 2 ) according to one of claims 19 to 21, characterized in that the jaws ( 12 . 14 ) each have an elastic foam covering for contact with the container ( 10 . 64 . 84 ), which is provided at least container side with a silicone coating. Screw cap mounting device ( 2 ) according to one of claims 19 to 22, characterized by a release element for detaching the container ( 10 . 64 . 84 ) from the static jaw ( 14 ). Screw cap mounting device ( 2 ) according to claim 23, characterized in that the release element is a spring element. Schraubkappenmontagevorrichtung according to claim 23 or 24, characterized in that the release element is a Behälterförderbahnbegrenzer ( 8th is. Screw cap mounting device ( 2 ) according to one of the preceding claims, characterized by a sensor ( 96 ) used to detect a position of a beak ( 86 ) the container cap ( 56 ), and a computing unit ( 52 ) prepared to remove the container holder ( 16 ) and the drive elements ( 26a -D) such that the container holder ( 16 ) the container ( 10 . 64 . 84 ) after attaching the container cap ( 20 . 54 . 56 ) and the drive elements ( 26a -D) the container ( 10 . 64 . 84 ) by turning the container cap ( 56 ) until the beak ( 86 ) in a predetermined, from the sensor ( 96 ) detected direction points.