EP1232979A2 - Dispensing unit for web material - Google Patents

Abstract

A storage disc (1) holds a roll (2) of the web of material (4) to be dispensed and has a primary guide unit (3) positioned on a support arm (5) radially positioned in relation to the roll of material. The web of material is extracted from the interior (30) of the roll and is guided between two guide rollers (7,9) of the primary unit. A sensor arrangement (6) has at least one sensor (8) regulating the entry of the web of material to the speed of the storage disc.

Description

The present invention relates to a dispensing device of strip material, with a stock plate, with a roll of the tape material to be dispensed and to deliver the Band material is rotatable, and with a (primary) guide unit for guiding the tape material when dispensing.

Such a device is basically from the screening technology known, then the tape material is a film tape which is to be fed to a film projector. Such The device is described for example in DE 197 11 509 C1. The stock plate there is a horizontally rotating one Film plate disc on which the film roll is placed is, the film tape on its inner handling in the form of a Belt loop of a stationary concentric to the film plate and centrally located plug-in unit is supplied. Since the Speed of the film tape to be shown during the dispensing process must be kept constant, a constant is required Readjustment of the speed of the stock supplier or the Film plate, and also a fine adjustment the speed, if namely - which is the rule in practice will be - the release point of the inner handling of the film reel removed film tape in the circumferential direction of the revolving Stock provider fluctuates or wanders. It is a for the drive or the drive plate provided controlled or regulated according to the required speed.

The problem underlying the present invention is such a device known from film screening technology for Dispensing tape material in the form of a film tape to be demonstrated to develop such that other tape material with completely different characteristics and completely different Generally to a processing machine or Device can be dispensed, the strip material to be dispensed still a film tape to be shown should be, which is fed to a film projector. As an example of such a strip material with completely different properties be one from semiconductor or assembly technology well-known metal band from lined up, parallel to each other arranged and with each other by means of any carrier material connected contact pins called. Except the with the material "metal" compared to a film tape Celluloid-related differences (such as increased Impairment of guide elements by the harder Metal) there is a major difference in the larger Stiffness of such a metal band, which is the use of the central plug-in unit known from film screening technology (see DE 197 11 509 C1) because of the associated narrow deflection paths excludes. In addition, it has - now in Regarding the film screening technique, where the tape material to be delivered is a film tape - in the middle of the film plate arranged plug-in unit proved to be disadvantageous, that a plate change that is required at least every time is when the film changes the cinema because of the bottom up the inserted electrical contacts cumbersome is.

On the basis of the problem outlined present invention the object of a device for dispensing tape material of the type mentioned above to train that any type of tape material is reliable can be handed in and also a change of the supplier is feasible without any problems.

This object is achieved in a device for dispensing strip material of the type mentioned in that the (Primary) guide unit is arranged on a support arm which is arranged radially with respect to the role of the strip material and the tape material from the essentially inner handling of the Roll out decreases.

The solution according to the invention has a number of essential ones Advantages over that known from film screening technology and device explained above. On the one hand it goes through the strip material when it enters the (primary) guide unit between the transfer point at the inner handling of the role of the person to be given Tape material and the pivot point of the tape material a curve with a sufficiently large radius so that a gentle infeed of stiffer or more demanding Tape material is possible. It is worth noting that the support arm with the (primary) guide unit, into which the strip material comes in, not necessarily to the center the stockholder must extend, but that between the free end of the support arm and the center of the supply plate a certain distance can be maintained, the support arm not even exactly radial, i.e. pointing to the center must be aligned, but have a certain "offset" can, so that the support arm with respect to the role of the strip material is arranged tangentially. The described length or Alignment of the support arm can be advantageous in that a sufficiently large curve radius of the incoming strip material is ensured even if the inner dealings the roll of tape material initially has a small diameter has, that is, a relatively large volume roll of strip material is present.

Furthermore, it is an advantage of the solution according to the invention to mention that the relatively large bore in the Middle of the stock plate - because they are state of the art known plug-in unit is omitted - what can turn out smaller to increase the supply capacity of the stock supplier leads, since the core of a roll of strip material is essential can be smaller. The middle of the plate now only has to still take up the swivel bearing of the stock supplier, which is why in a simple center hole is sufficient in the middle of the plate and the central bearing construction can also be made simpler can.

With the elimination of the "classic" plug-in unit the advantage that the previously cumbersome in the screening technology Change of a stockholder together with the one lying on it Film reel because of the elimination of the need for electrical Bring cables or plugs to a plug-in unit and to contact with them, much easier is to be carried out.

Finally, it is in view of the example mentioned Contact pin assembly technology advantageous that rewinding the supplied roll of strip material is omitted because it is exactly there the removal of the tape material is started, where at the manufacturer winding of the strip material has also started, namely the inner handling of the tape material roll.

Advantageous developments of the invention are in the subclaims specified.

For example, it is provided that the (primary) guide unit has two guide rollers, between which the strip material is passed through. Form these leadership roles at the same time the pivot point of the strip material when entering the (primary) management unit and also take care of you quiet further transport of the strip material along the Support arm.

To a defined delivery speed of the strip material without Achieving slippage between the guide rollers is preferred provided that the guide rollers are designed as pressure rollers are the tape material under easy mutual Lead pressure. This training is especially stiffer Tape material is an advantage, such as one made from Is existing metal tape.

Furthermore, is to ensure a constant and in particular jerk-free belt infeed provided that the (primary) Guide unit a sensor device with at least one Sensor, by means of which the inlet of the strip material can be readjusted via the speed of the supply plate. A such a sensor device is already from film screening technology (see also DE 197 11 509 C1), which is then usually has two sensors, for example one out of two Reflective light barriers existing LED arrangement contains. This sensor device known per se, which is the most extreme free end of the support arm, can be dispensed Metal strip material, for example, inductively by means of two Metal sensors can be realized.

It is particularly preferably provided that the sensor device in the direction of transport of the strip material in front of the guide rollers is arranged. Because the pivot point of the strip material in the device according to the invention in comparison with the described prior art in the leadership role level and no longer - as with the "classic" plug-in unit - in the Sensor level is a non-contact in normal operation Control of the tape infeed between the sensors possible. at of the plug-in unit were inlet skids for this in the sensor level necessary. But it is also conceivable that the sensors of the Sensor device and the guide rollers in one unit as "control roles" to be carried out by means of a coupled electronic mini logic an electrical signal to the drive of the stock supplier as soon as these regulating rollers turn, the rotation of which is tangential to the control rollers passing tape material is triggered. Then that is the case when the entry angle of the strip material is its maximum permissible size, then the speed of the stock supplier (possibly only for a short time) and thus the Entry angle of the strip material into the (primary) guide unit is reduced.

An advantageous, albeit partly from the screening technology known development of the present invention in that the stock plate is horizontal and the support arm above of the stockholder is arranged. The advantages of such horizontal arrangement are particularly safe The tape material roll rests on the stock plate and in a trouble-free removal of the strip material without any noteworthy Influences of gravity.

To achieve a compact device is further in advantageously provided that the support arm and the storage plate are arranged on a common stand.

The following advantageous developments of the invention deal with the release of two-ply tape material, which for example a useful layer and a carrier or separating layer having. An application example for such a two-layer Tape material is again the one already described above Band from parallel next to each other and transverse to the longitudinal direction of the band arranged metal contact pins. Such contact pins because they are not necessarily perfectly straight or flat, but have a certain contour, which is for example in a "belly" in the middle or in can express a hook at the end of it. Band material from strings Contact pins in general, but especially such Tape material made of contoured contact pins, has at Winding up or unwinding has the disadvantage that individual strip sections interlock very easily, which then becomes one Disruption of tape delivery leads. That is why such metal strips produced as a two-ply strip material, the usable ply from the actual metal strip with the strings lined up There are contact pins, and also a carrier or Separating layer of paper or plastic is provided, which the when winding or unwinding concentrically next to each other to lie on coming strip material sections separated and thus snagging prevents.

In such a device for dispensing two-ply tape material is advantageously a secondary guide unit for separate delivery or return of the carrier or Separation position (hereinafter only briefly "TT position") provided. In this secondary guide unit runs the TT position separately from the useful position after it is at the peel point - the not must coincide with the detachment point of the usable location - from the inside Circulation of the strip material has solved.

While the secondary management unit basically also with could be equipped with two leadership roles in mind on a relatively thin paper or plastic tape as TT location preferably provided that the secondary guide unit has two guide runners, between which the TT position of the two-ply band material.

Of course, the example of a two-layer tape material is used in the form of a usable location and a TT location only the better ones Explanation of a conceivable application for the invention Contraption. It can easily be a trade two-layer tape material with two layers to be dispensed, in which case the second position of use is similar or exactly the same as the first Usable location to the further processing or processing station is delivered.

With regard to a rewound, because possibly to be recycled TT location or in terms of film screening technology where the film tape to be dispensed after passing through a projector unit must of course be rewound, is an advantageous development that can be set in rotation Take-up plate for winding up the TT layer or the single layer Band material provided.

Based on the components described above for delivery the usable position or a single-layer tape material is for the TT layer of a two-ply strip material provided that the secondary guide unit has a secondary sensor device, by means of which the entry of the TT position via the speed of the receiving plate can be readjusted.

Finally, it is preferred to achieve a compact device provided that the secondary guide unit and / or the receiving plate are arranged on or on the support arm. While it is known from the film screening technology, that by the projector unit run on a film tape under the To wind up the supply plate arranged, there is the main advantage in the arrangement of the receiving plate on or on the support arm of the device according to the invention therein, that a deflection of the film band downward is unnecessary.

The following are three preferred embodiments of the Device according to the invention for dispensing tape material a drawing explained in more detail.

Fig. 1

eine Draufsicht auf ein erstes Ausführungsbeispiel der erfindungsgemäßen Vorrichtung, für ein zweilagiges Bandmaterial;

Fig. 2

eine Seitenansicht des Ausführungsbeispiels gemäß Fig. 1;

Fig. 3

eine Draufsicht auf den Vorratsteller 1 eines zweiten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung, für ein zweilagiges Bandmaterial; und

Fig. 4

eine Draufsicht auf den Vorratsteller 1 eines dritten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung, für ein Filmband.

Show it:

Fig. 1

a plan view of a first embodiment of the device according to the invention, for a two-ply strip material;

Fig. 2

a side view of the embodiment of FIG. 1;

Fig. 3

a plan view of the storage plate 1 of a second embodiment of the device according to the invention, for a two-ply strip material; and

Fig. 4

a plan view of the storage plate 1 of a third embodiment of the device according to the invention, for a film tape.

Fig. 1 shows a plan view of a first embodiment a device for dispensing tape material, in the present Case of two-ply strip material 4, with a storage plate 1, equipped with a roll 2 of the strip material 4 to be dispensed and for the delivery of the strip material 4 by a (not shown and usually arranged below the supply plate 1) Drive can be set in rotation. The stockholder 1 is arranged horizontally and - s. Fig. 2 - on a first Carrier 27 rotatably mounted, which in turn on the column 19th a stand 11 is attached, the column 19 by means of two V-shaped legs 20, 21 stands on the floor. In Fig. 1 the first carrier carrying the storage plate 1 was 27 omitted for the sake of clarity. On the horizontally arranged storage plate 1 is in concentric Circles wound tape material 4, which is on the inside Handling 30 at a transfer point shown as an example 31 from roll 2 and via a fictitious ideal entry point 25 in a primary guide unit 3 for guiding the Tape material 4 arrives at the delivery. The strip material thereby forms 4 a bulbous ribbon loop, the radius of which depends the coordination between the belt speed in the Primary guidance unit 3 and the speed of the storage actuator 1 is bigger or smaller what is through the other two ribbon loops is shown. It is either the so-called "Entry angle", namely the angle between the (not shown) Straight through the (ideal) entry point 25 in the transport direction 24 of the strip material 4 and (also not shown) fictitious tangent to the actually incoming Belt loop, or the distance of the belt material from a sensor device 6 a manipulated variable for controlling the speed of the stockholder 1, which will be described below becomes.

The primary guide unit 3 is arranged on a support arm 5, which with respect to the roll 2 of the strip material 4 essentially is arranged radially and the strip material 4 from the inner handling 30 of roll 2 decreases and over one Transport roller 22 transported in the transport direction 24 further.

The primary guide unit 3 is in the area of the free end arranged of the support arm 5, which is above the horizontal Stock provider 1 extends. The primary guide unit 3 has two guide rollers 7.9, which in this embodiment designed as pressure rollers with a soft rubber coating are the tape material 4 with light mutual pressure to lead. At the outermost free end of the support arm 5, the Primary guide unit 3, which consists of two sensors 8, 10 Sensor device 6, by means of which the inlet of the strip material 4 on the speed of the supply plate 1 by using the inlet angle (e.g. for a non-metallic Strip material) or the distance of the strip material from the sensor device 6 (e.g. with a metallic strip material) as Manipulated variable can be readjusted. For example, that the sensor 8 always uses a signal to if necessary, only for a short time - increase the speed of the stock controller 1 causes when the incoming belt loop in the Fig. 1 to the left of the middle belt loop position (defined through the assumed detachment point 31 and the ideal entry point 25) shown ribbon loop position with the smallest Radius has reached while the sensor 10 has a corresponding Emits a deceleration signal to the drive of the supply unit 1, if the one shown to the right of the middle position Belt loop position with the largest radius is reached.

The sensor device 6 is in the transport direction 24 of the Band material 4 arranged in front of the guide rollers 7,9, which in particular is therefore advantageous because the pivot point of the Band material 4 lies in the transport roller plane and thus in Normal operation a non-contact control of the tape entry between the sensors 8, 10 of the sensor device 6 is possible. An alternative, not shown, to this is that the sensor device 6 and the guide rollers 7, 9 as one Unit in the form of "control roles" are formed because of what the required frictional engagement between the one to be delivered Tape material 4 and the control rollers in general only with one sufficient coefficient of friction between the strip material and the material of the control roles will be useful. This is for example in the case of a contact pin metal band on the one hand and rubber or plastic-coated control rollers on the other hand the case.

The strip material 4 to be dispensed is, for example around a two-ply strip material with a useful layer 12 and a carrier or separating layer 14 (hereinafter only briefly Called "TT location"). The usable location 12 can be, for example a metal band made of contact pins lined up parallel to each other consist, each by one or more small Metal dots are connected together during processing the contact pins are generated as a recyclable waste product. To a mutual interlocking of the in concentric circles to prevent coiled contact pin metal tape this two-ply tape material as a TT ply 14, for example a thin paper or plastic tape, which the individual concentric layers of the useful layer 12, i.e. the contact pin metal strip, separated from each other. This TT location 14 des two-ply strip material 4 runs in the one shown in FIG Embodiment of the delivery device together by the primary management unit 3 and is then continued separately, by the TT layer 14 vertically via a deflection roller 23 is guided downwards (see FIG. 2), while the useful position 12 via the transport roller 22 in the transport direction 24 of a further processing or processing device supplied becomes.

Fig. 2 shows a side view of the first embodiment a dispenser for tape material according to the invention, such as it has been described with reference to FIG. 1. Based on this illustration it can be seen first of all that below the supply plate 1 another plate, namely a receiving plate 15 for winding the TT layer 14 of the strip material 4 or - in the case of one single-ply strip material - the strip material 4 itself is provided is. This receiving plate 15 is rotatable on a second Carrier 28 mounted, which in turn on the column 19 of the stand 11 is attached. Furthermore, on the basis of this FIG. 2 to see the further course of the TT layer 14 after the Deflection roller 23 revolve directed downwards. At the level of There is a winding level of the receiving plate 15 further deflection roller 26, by means of which the TT layer 14 in shape a roll 29 is wound on the receiving plate 15. in the In the case of a two-ply strip material 4, the roller 29 can TT layer 14 removed after completion of the winding process and be recycled. In the case of a single layer Film tape, which after a (not shown) projector unit must also be rewound the return of the film tape to the receiving plate 15 in a similar manner Way, but - in terms of the process - between the Deflection rollers 23,26 the projector unit is run through. Consequently it is clear that the embodiment shown in Fig. 2 a dispenser for tape material also excellent can be used in film screening technology.

3 shows a detailed top view of a second exemplary embodiment the dispenser for tape material according to the invention. In this illustration, the stand 11 is the better one Omitted for clarity. This embodiment differs from that of FIGS. 1 and 2 in that that for the separate delivery or return of the TT layer 14 a separate secondary guide unit 13 with two guide runners 16, 17 and a secondary sensor device 18 is provided. The guide runners 16, 17, which are basically also called Guide rollers could be designed, provided that the TT layer 14 of the two-ply strip material 4 between them runs through and is led. By means of the sensor device 18 is the entry of the TT layer 14 via the speed of the receiving plate 15 readjustable. Here, the secondary sensor device realized, for example, by a light barrier be, as soon as it is covered by the TT layer 14, a emits electrical signal, by means of which the speed of the (Not shown) drive of the receiving plate 15 - if necessary only in the short term - is increased.

The second essential difference from that shown in FIG. 3 second embodiment of the dispensing device consists in that both the secondary guide unit 13 and the Receiving plate 15 are arranged on or on the support arm 5.

Thus, that in the first exemplary embodiment according to FIGS Figures 1 and 2 required redirection of the TT layer 14.

4 again shows only a detailed top view of a third Embodiment of the dispensing device according to the invention, in this case for a single-ply strip material in the form of a film tape to be shown, which in turn with the reference number 4 is designated. As in the previous embodiments is the roll 2 of the strip material 4 on the horizontal storage plate 1 and is an example shown detachment point 31 from inner handling 30 the roll 2 in the form of a belt loop over the entry point 25 a guide unit 3, which is provided with a sensor device 6 is coupled. The guide unit 3 can in this Case what is known from the prior art and not detailed here is shown, have inlet skids, and the sensor device 6, also not shown, can be one of two reflective light barriers existing arrangement.

At this point it should be noted that it is essential for all three embodiments is that the support arm 5 in relation not exactly radially aligned on the roll 2 of the strip material 4 be and also not to the center of the stock plate 1 must extend. Rather, a tangential Arrangement a certain lateral distance ("offset") to The center of the stock controller 1 can be set, and with a shortening of the support arm 5 a certain radial distance. Both setting options can be used to with which the strip material from the detachment point 31 to the entry point 25 runs as smoothly as necessary to let.

Claims (13)

Device for dispensing strip material, with a supply plate (1) which can be equipped with a roll (2) of the strip material to be dispensed (4) and set in rotation for dispensing the strip material (4), and with a (primary) guide unit (3 ) for guiding the tape material (4) during delivery,
characterized in that the (primary) guide unit (3) is arranged on a support arm (5) which is arranged essentially radially with respect to the roll (2) of the strip material (4) and the strip material (4) from the inside Handling (30) of the roll (2) decreases. Device according to claim 1,
characterized in that the (primary) guide unit (3) has two guide rollers (7, 9) between which the strip material (4) is passed. Device according to claim 2,
characterized in that
the guide rollers (7, 9) are designed as pressure rollers which guide the strip material (4) under slight mutual pressure. Device according to one of claims 1 to 3,
characterized in that
the (primary) guide unit (3) has a sensor device (6) with at least one sensor (8), by means of which the inlet of the strip material (4) can be readjusted via the speed of the supply adjuster (1). Device according to one of claims 2 to 4,
characterized in that
the sensor device (6) is arranged in the transport direction (24) of the strip material (4) in front of the guide rollers (7, 9). Device according to claim 4,
characterized in that
the sensor device (6) and the guide rollers (7, 9) are designed as a structural unit in the form of control rollers. Device according to one of claims 1 to 6,
characterized in that
the storage plate (1) is arranged horizontally and the support arm (5) is arranged above the storage plate (1). Device according to one of the preceding claims,
characterized in that
the support arm (5) and the storage plate (1) are arranged on a common stand (11). Device according to one of the preceding claims, for dispensing two-layer strip material (4) with a useful layer (12) and a carrier or separating layer (14),
marked by
a secondary guide unit (13) for the separate delivery or return of the carrier or separating layer (14). Device according to claim 9,
characterized in that
the secondary guide unit (13) has two guide runners (16, 17), between which the carrier or separating layer (14) of the two-layer strip material (4) is guided. Device according to claim 9 or 10,
marked by
a rotatable receiving plate (15) for winding the carrier or separating layer (14) of the strip material (4) or the strip material itself. Device according to one of claims 9 to 11,
characterized in that
the secondary guide unit (13) has a secondary sensor device (18), by means of which the entry of the carrier or separating layer (14) can be readjusted via the speed of the receiving plate (15). Device according to one of claims 9 to 12,
characterized in that
the secondary guide unit (13) and / or the receiving plate (15) are arranged on or on the support arm (5).

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