DE8321825U1 - LABELING MACHINE - Google Patents

Description

- 1 description

The invention relates to a labeling device for applying removably to a carrier tape a label tape arranged self-adhesive labels on objects to be marked with at least one label decreasing from a dispensing edge and for labeling label holder movable relative to the object to be marked, whereby to detach the label from the carrier tape this guided around the dispensing edge and at least one deflection roller can be pulled off isc and the dispensing edge when handing over the label to be detached on the label holder relative to the object to be labeled is movable, wherein the dispensing edge and the deflection roller are carried by a controlled movable guide piece.

In such a labeling device known from DE-OS 29 12 420, the guide piece is pivotable Lever that is swiveled past the label holder when the label is dispensed. It must the label tape synchronized with the swivel movement

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be transported. After transferring the detached label to the label holder

ι the arm-like guide piece is pivoted away

to get space for the object to be labeled. Step through the long lever arms

Here vibrations occur slightly, so that inaccurate placement of the label is the result. Next is the labeling speed is severely limited as the label tape is only transported during the actual donation process can take place. That

Label tape has to be accelerated and decelerated again in a short time. Despite the use A satisfactory labeling speed cannot be obtained from carrier tape with a particularly high tensile strength which is absolutely necessary for marking, especially smaller objects to be able to work economically.

From the cited publication it is also known to have the label holder with a vacuum source to connect and to hold the label by suction on the label holder during the dispensing process.

25th

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The object of the present invention is to provide the labeling device described above for to design a high labeling speed, while still a positionally accurate labeling should be made possible.

To solve this problem, the invention provides that the carrier tape has further pulleys and the pulley connected to the guide piece and the dispensing edge in one for Direction of displacement of the guide piece is guided parallel double loop and that when there is a shift of the guide piece together with the dispensing edge in one direction the to be dispensed Label is released without the label facing the object to be labeled is shifted in the direction parallel to the surface to be labeled and without a transport feed of the label tape at least at the end of the dispensing process.

The arrangement of the double loop makes it possible that at least during the final process of the Label dispensing at the end of the removal from the carrier-25

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• t ·

tied the label tape and the carrier tape do not have to perform a feed movement, so that a very accurate and precise label application is possible. The double loop will formed by two pulleys and the dispensing edge. At least during the final donation process

the carrier tape is moved over the dispensing edge by moving it in the double loop. The actual label tape and carrier tape transport can therefore take place in the breaks take place between the actual labeling. In addition, during these breaks in labeling a pre-dispensing of the label also takes place, especially with large labels, so that the £

to further reduce the actual labeling time. ί

The conveyor belt can be transported over a relatively large L '

Time interval can be extended with the possibility of reducing the transport speed without that thereby the labeling speed must be reduced. This allows the label and conveyor belt, because lower transport forces occur, are designed to be weaker.

At the same time, the fact that the label tape during at least the end process of the label dispensing the labeling does not have to be moved

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much more precise, since there is no speed adjustment tape transport speed dispensing speed must be done. Due to the double loop, the speed of the label dispensing and the displacement of the dispensing edge is necessarily identical, as the dispensing speed is only determined by the movement of the Guide piece is set and no other movement of the label tape through the double loop is overlaid during labeling.

In terms of construction, the dispensing edge can be part of a displaceably guided guide piece, with this precisely positioned by two guided at a distance from each other arranged guide rods and controlled by a working cylinder and can be moved.

The guide piece can have two cheek parts in a very dimensionally stable manner, each with at least one one preferably two projections partially surrounding the guide rods, whereby a smooth, precisely positioned, exact guidance of the dispensing edge can be achieved. For guidance and retention of the label tape or carrier tape

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at least two pulleys are particularly advantageously provided on the guide piece. A shift of the guide piece has no loop in the case of a loop correspondingly formed by the pulleys Influence on the tension of the label tape and the label tape is in the label-bearing part up to the dispensing edge when moving the guide carriage not relative to the label holder emotional. The actual transport of the label tape can take place before or at the same time during the return movement of the guide piece to its starting dispensing position.

To reduce friction and wear, the dispensing edge can be particularly advantageous as a roller be designed, for example. With a diameter of about 3 mm. Through the hereby achieved A precisely repeatable, precisely positioned label positioning for label transfer reduces friction achieved.

To further increase the positional accuracy of the transferred label on the label holder can also have a positioning stop 25

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be provided. This can be used together with the dispensing edge in a particularly advantageous manner be movable, then expediently the positioning division of the positioning stop in the withdrawn end position of the dispensing edge is given. This can then be used on the Label holder The label held by the positioning stop is slightly on the label holder be moved into its exact labeling position. The exact label position is then only still dependent on the location of the attack. Practically all other dimensions and movements with the exception the lifting movement of the label holder and the position of the object to be labeled then no influence on the accuracy of the labeling.

For convenient position adjustment, the positioning stop on the guide piece can be adjusted opposite the dispensing edge be arranged on the guide piece.

A space-saving training that is also suitable for labeling larger objects can thereby be achieved that the guide piece to form the dispensing edge a protruding plate

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has like tongue, this plate-like tongue is arranged cantilevered on one side of a car part or more stable between two car parts.
5

In order to determine the position of the label to be labeled in relation to the object to be labeled simply to be able to adjust, the guide rods and possibly the working cylinder in their Carried by a holder so that it can be adjusted lengthways. For this purpose, the holder can have a plate be two perpendicular guide plates.

A deflecting pulley carrier can be coupled to the guide piece so as to be displaceable in a particularly advantageous manner be provided, the two further pulleys

carries through which the label tape is fed perpendicular to the direction of displacement of the guide piece

and the empty label tape is pulled off. The vertical deflection takes place when moving of the guide piece no change in length of the label tape feed and carrier tape discharge,

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ii ···· ■ »■ a · ··

so that no additional accelerations and decelerations are required, even at high labeling speeds Label tape can be equipped with low tensile strength.

To include particularly large labels if necessary To be able to label quickly with a distance from the edge, two additional labels can be placed on the guide rods be slidably guided further cross pieces, the side plates with each other to one Schlepprabmen are connected, in turn is displaceable by the guide piece, expediently only in the end stroke of the Guide piece coupled through this. The dispensing edge with the label holder is still in the outermost extended position and it can then when retracting the towing frame nit be withdrawn, so that larger objects with a correspondingly large Edge distance can be labeled. This can be particularly advantageous at the end of the

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The tongue of the label holder carrying the dispensing edge is preferably arranged in the form of a pressure roller be, so that at the same time as the dispensing movement, the label to be dispensed on Object is pressed and can be placed safely and quickly. The pressure roller can expediently do this against the throw a feather un. be held about 90 pivotable on a bracket on the tongue, so that practical the part of the hanger protruding beyond the dispensing edge gained additional possible label size will.

A simple and quick automatic labeling can be achieved that the object to be marked on a conveyor is moved at a certain speed that the guide piece with the dispensing edge in its direction of displacement at an angle to the direction of movement of the object to be marked is arranged and that the conveying speed of the angle and the retraction speed the dispensing edge when dispensing the label like this

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I I t I *

are chosen that the label holder is relative to the characterizing object along an end face of the object moves.

Further designs according to the invention are the

Refer to the subclaims and their advantages are explained in more detail in the description below. In the attached drawings shows:
10

Figure 1 is a partial side view of a

Labeling device, partly in section,

Figure 2 is a plan view of the in Fig.

Device part shown with partial omission of the holder for the label holder on a larger scale,

characters

3 to 5 the label dispensing process in

three phases,

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FIG. 6 shows a side view of another embodiment of a labeling device in the extended position shortly before the labeling process,

Figure 7 is a side view of the device shown in Figure 6 in the direction the arrow VII in Fig. 6,

FIG. 8 shows a side view corresponding to FIG. 6 in the operating position shortly before the end of the Labeling process and

15 Figure 9 20

a representation corresponding to Figures 6 and 8 after the completion of the Labeling process and further transport of the labeled object.

25th

In the case of the only partially shown label dispenser according to FIGS. 1 to 5, an extension arm 1 a working cylinder 2 attached, over which

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Piston rod 3 a label holder 4 in the vertical direction for applying labels onto an object 24, shown in FIGS. 3 to 5, which is guided past below is movable. The underside of the label holder 4, which is approximately cylindrical in cross section, serves as a Holding surface 5 for a label 25 and it is for sucking and holding a label 25 via a channel 6 with a vacuum source (not shown) in connection. In Fig. 1 is the Label holder 4 shown in its upper takeover position.

Approximately at the level of the holding surface 5 of the label holder 4, a label tape 8 carrying self-adhesive labels can be fed in via a guide piece 7 and its carrier tape 8 ^1, freed from the labels 25, is held taut over pulleys 10 and 11 and can be peeled off in a clocked manner. In a known manner, due to the strong deflection at the dispensing edge 9, the labels arranged on the label strip 8 are cyclically guided to the label holder 4 and removed therefrom.

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I I ·

- 14 -

To facilitate the acceptance, the leadership gap is 7 slidable on two guide rods 12 and 13 guided. For this purpose, the guide rods 12 and 13 enclosing the cheek parts 14 and 15, respectively Projections 16, 16 ', 17, 17' are arranged. One of the projections 17 is over a bolt coupled to the piston rod 19 of a working cylinder 20. By the working cylinder 20 can the guide piece 7 and thus also the dispensing edge 9 are moved away from the label holder 4, as soon as the label to be transferred has arrived under the holding surface 5. When withdrawing the dispensing edge 9 is the label tape 8 relative to the extension arm 1 and thus also relative to the Holding surface 5 is not moved, so that the label is already transferred in the exact position. Against it the carrier tape 8 'is held tight under pretension and pulled off. So it slides along around the dispensing edge 9 until the label is fully released in the retracted state of the Guide piece 7. The stroke of the guide piece can be adjusted for labels of different sizes be, with both end positions of the guide piece 7 separately and independently adjustable can be, e.g. /. by means of adjustable stops or control cams for the working cylinder 20.

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- 15 -

To correct the position of the label sucked on the holding surface S, on the guide piece 7 as shown in dash-dotted lines in the figures, a positioning stop 21, for example in the form of a be provided on the cheek part 14 adjustably attached bracket 22. The bracket 22 can also be U-shaped be attached adjustable bar on both Vtengentteile 14 and 15.

A rotatable roller with a diameter of 3 mm, for example, can serve as the dispensing edge 9 to reduce friction. The label tape 8 can be guided, on the one hand, on a guide plate arranged between the cheek parts 14 and 15 and, on the other hand, the carrier tape 8 ¹ opposite, in order to largely avoid vibrations and warping.

In Figures 3 to 5, the dispensing process is shown in three successive phases. In Fig. 3, the label transfer begins. The guide piece 7 is completely under the label holder 4 advanced. The channel 6 is subjected to negative pressure, so that the still on 25th

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KX t! ¹ y

the label tape 8 arranged label 25 is sucked on the holding surface 5. Here can the label tape 8 with the label 25 by the negative pressure something from the guide piece 7, in particular be lifted off the guide plate 23. Now it is necessary to remove the label 25 the guide piece 7 is pulled off to the left in the illustration from the carrier tape 8 '. It remains the feed end of the label tape 8 relative to the label holder 4 stationary, so that the Carrier tape 8 'is pulled off around the dispensing edge 9 and so that held by the label holder 4 Label 25 is released. In Fig. 4 the guide piece has reached its left end position.

The positioning stop 21 of the comes

■ f bracket 22 on label 2 5 to the system and moves J

this on the label holder 4 slightly, for example by a few tenths of a millimeter in his

% final positioning position. Then the y

Working cylinder 2 of the label holder 4 on the \

to be labeled object 24 lowered and

so the label 25 is stuck on in the exact position. After the i

The label holder 4 is raised again j

in the same cycle the labeling of the next 5 objects 24.

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In the further embodiment shown in FIGS. 6 to 9, for the corresponding Parts that use the same reference numerals as the embodiment just described The labeling device shown there is via a plate-like holder 1 ', for example on a non- Conveyor device 26 shown for objects 24 to be labeled can be fastened. Be there these objects 24 on the conveyor 26 in the direction of arrow 27 on the labeling device for

Labeling passed on its end face 28.

The holder 1 'has two guide plates 29, 29' ■ in which the working cylinder 20 can be adjusted

te 15 and the guide rods 12 and 13 held siAd.

The ends of the guide rods 12 and 13 protrude

the lower guide plate 29 and slidably carry a transverse piece 30 on which the deflecting roller is overhung 10 is stored. The cross piece 30 is part of j's 20 of a towing frame 34, which also has another

% Has cross piece 32, which is also displaceable

': is guided on the guide rods 12, 13. the

Both cross pieces 30 and 32 are over side plates 35, 35 'to form the towing frame 34 connected with each other.

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The guide piece 7 on the guide rods 12, 13 is surrounded by the drag frame 34 slidably guided. At the side it has two coupling bolts 36, 36 'which are in longitudinal slots 37 of the side panels 35, 35 'engage. The longitudinal slots 37 are dimensioned so that through the stroke of the guide piece 7 when it rests on the guide plate 29, the transverse piece 30 End stops 38 of the guide rods 12, 13 rests. When the piston rod 31 is drawn in, the guide piece 7 comes to rest on the crosspiece 32 Plant and takes the towing frame 34 with it until the cross piece 32 rests on the guide plate 29 ' (Fig. 9). For shock absorption, between the guide plate 29 'and the crosspiece 3 2 dampers be provided.

On the cross piece 3 2, two further pulleys 10 ″, 10 ″ are arranged. This becomes the label tape past a photocell 39 over the pulley 10 ″ to the dispensing edge 9 and from there over the pulley 11 returned. The guide of the label tape over the dispensing edge 9, the deflection roller 1 1 and the deflection roller 10 form a double loop 40, which, however, is only formed by the carrier tape 8 '

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is. This carrier tape is led away via the deflection roller 10 to a pair of take-off rollers 41, parallel to the label tape 8, so that a displacement of the deflection rollers 10 ', 10 "on the guide rods 12, 13 does not require a change in length in the label tape 8 or carrier tape 8 ¹ . The route is therefore carried out at right angles to the guide rods 12, 13.

To the largest possible end face 28 of a

To be able to paint over the object 24 to be labeled, the dispensing edge 9 is at the end of a plate-like tongue 33 is arranged and it is in the area near the dispensing edge 9 via a Retaining bracket 42, a label holder 4 designed as a roll, articulated so as to be pivotable about a pivot axis 43.

The dispensing operation is now as follows. In the state shown in Fig partially shared label 25 projects beyond the dispensing edge 9 and on the end face 28 to be labeled object 24 is moved by the conveyor 26 to the label holder 4 down until it at 25

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Front face 28 rests. Then via a switching contact or a light barrier 44 the Guide piece 7 withdrawn over the working cylinder 20, with one such Speed that the label holder 4 is always straight on the end face 28 of the object 24 is applied and the label 25 presses against this. By guiding the carrier tape 8 'over the moving dispensing edge 9 and the moving pulley

I 11 and the fixed pulley 10, so the double |

loop 40 takes place without conveying the label strip 8, i.e. with stationary deflection rollers 10, 10 ', 10 ″, the actual dispensing process, since the movement of the guide piece 7 causes the label tape peeled off around the dispensing edge 9 by the moving deflection roller 11 and the label is dispensed will.

The dispensing process is as shown in Fig. 8, approximately ended when the guide piece 7 on

Crosspiece 32 comes to the plant. With a further displacement of the guide piece 7 is now also the towing frame 34 is moved upwards (FIG. 9), so that the object 24 can easily pass. 25th

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The object 24 could also be made even higher, because the label holder 4 is yes can be swiveled away. So there would still be enough space up to the end stop 38 '. So that remains there is also enough space to process labels of a corresponding size or these Label labels with a correspondingly large edge distance on the end face 28 in the correct position can.

10

In order to be able to dispense particularly large labels, these are pre-dispensed in a controlled manner via the photocell 39 and an electronic control 45, namely while the guide piece 7 is being returned to the position shown in FIG. 6, the label strip 8 is transported to the label partly already replaced comes into the donation start position. After reaching this position, a ^c tillsetzung takes place of the label tape advance, exactly controlled by the photocell. 39 From there the donation process described above begins. The pre-dispensing is different depending on the size of the label and can be precisely set using the electronic control and the shifting of the photo cell 39.

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At the same time, the label holder 4 can also be exchangeable with the retaining bracket 32 in an appropriate size.

- End of description -

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Claims (19)

Expectations . Labeling device for applying self-adhesive labels (25), which are detachably arranged on a carrier tape (8 ¹ ) of a label tape (8), to objects (24) to be labeled, each with at least one label (25) decreasing from a dispensing edge (9) and to the Labeling relative to the object (24) to be marked movable label holder (4), whereby in order to detach the label (25) from the carrier tape (8 ¹ ) it can be pulled around the dispensing edge (9) and at least one deflection roller (11) and the dispensing edge ( 9) when transferring the label (25) to be detached to the label holder (4) relative to the I 1 lilt · ■ · · · · The object (24) to be labeled can be moved, the dispensing edge (9) and the deflecting roller (11) being carried by a guide piece (7) which can be moved in a controlled manner, characterized in that the carrier tape (8) has further deflecting rollers (10, 10 ', 1O ¹ ') and the deflection roller ( ¹ D and the dispensing edge (9) connected to the guide piece (7)) is guided in a double loop parallel to the direction of displacement of the guide piece (7) and that when the guide piece (7) is moved together with the dispensing edge (9) the label (25) to be dispensed is released in one direction without the label (25) being displaced in relation to the object (24) to be labeled in the direction parallel to the surface to be labeled (end surface 28) without advance feed of the label strip (8) ) at least at the end of the donation process. 2. Ecikettiergerät according to claim 1, characterized in that the guide piece (7) by two at a distance from each other arranged guide rods (12, 13) is guided. 1808 336 3. Labeling device according to claim 2, characterized in that the guide piece (7) has at least one cheek part (14, 15) each with at least one, preferably two, the guide rods (12, 13) at least partially enclosing projections (16, 16 ', 17, 17 '). 4. Labeling device according to one of claims 1 to 3, in which for holding the removed labels a holding surface (5) of the label holder (4) connected to at least one vacuum source is, characterized in that a positioning stop (21) for the label holder (4) adopted label (25) is provided, and that this positioning stop (21) together is movable with the dispensing edge (9) and that the positioning position of the positioning stop (21) is given in the withdrawn end position of the dispensing edge (9). 5. Labeling device according to claim 4, characterized in that the positioning stop (21) on the guide piece (7) is optionally adjustable relative to the dispensing edge (9). 1808 336 6. Labeling device according to claim 4 or 5, characterized in that the positioning stop (21) can be displaced as a bracket on at least one cheek part (14) and / or (15) of the guide piece (7) is attached, the side facing the dispensing edge (9) serves as a positioning stop (21). 7. Labeling device according to claim 4, characterized in that that the label (25) held on the label holder (4) through the positioning stop (21) moved slightly on the label holder (4) into its exact labeling position is, the negative pressure is adapted accordingly to the label size and still without deformation of the label (25) allows its displacement. 8. Labeling device according to one of claims 1 to 3, characterized in that the guide piece (7) has a projecting plate-like tongue (33) to form the dispensing edge (9), which are cantilevered on one side on the guide piece (7) or between two cheek parts (14, 15) is. 1808 336 9. Labeling device according to one of claims 1 to 8, characterized in that the guide rods (12, 13) and optionally the working cylinder (20) are supported adjustable in a longitudinal direction by a holder (1 ¹ ). 10. Labeling device according to claim 9, characterized characterized in that the holder (1 ¹ ) is a plate with two guide plates (29, 29 ') running perpendicular thereto for the guide rods (12, 13). f? 11. Labeling device according to one of claims 1 to 10, characterized in that two further cross pieces on the guide rods (12, 13) (30, 32) are displaceably guided, which are connected to one another via side plates (35, 35 ') are connected to a towing frame (34) which can be displaced by the guide piece '37) is. 12. Labeling device according to claim 11, characterized in that the drag frame (34) only in the stroke end areas of the guide piece (7) 1808 -G- coupled with this is displaceable. 13. Labeling device according to claim 12, characterized in that zux * drag coupling in the stroke end areas in at least one of the side plates (35, 35 ') a longitudinal slide (37) is provided, into which a coupling bolt (36, 36 ') of the guide piece (7) protrudes or vice versa. 14. Labeling device according to one of claims 11 to 13, characterized in that two further deflection rollers (10 ', 10 ") through which perpendicular to the direction of displacement of the guide piece (7) the label tape (8) is fed in and the empty carrier tape (8 ') is pulled off. 15. Labeling device according to claim 8, characterized in that that at the end of the tongue (33) carrying the dispensing edge (9) the label holder (4) is preferably provided in the form of a pressure roller. te «· 16. Labeling device according to claim 15, characterized characterized in that the pressure roller can be pivoted through about 90 ° against the action of a spring is held on a bracket (42) on the tongue (33). 17. Labeling device according to one of claims 1 to 16, characterized in that large labels first in a pre-dispensing by transporting the Label tape (8) are partially dispensed and that the remainder of the dispensing process is carried out by shifting the tensioning edge (9) coupled to the guide piece (7) takes place without label tape feed from the movement of the double loop (40). 18. Labeling device according to one of claims 1 to 17, characterized in that the object (24) to be marked is carried on a conveyor device (26) is moved at a certain speed that the guide piece with the dispensing edge (9) in its direction of displacement at an angle to the direction of movement of the object to be marked (24) is arranged and that the conveying speed, the angle and the retraction speed the dispensing edge (9) when donating 1808 336 • I · · the label (25) are chosen so that the label holder (4) is relative to the label to be identified Object (24) moved along an end face (28) of the object (24). 19. Labeling device according to claim 18, characterized / that the label tape feed takes place in the pauses between label dispensing. - End of claims - 1808