DE1574335A1 - Device for connecting the ends of bands - Google Patents

Description

Eastman Kodak Company, 3 ** 3 State Street, Rochester, New York State, United States of America

Device for joining the ends of ribbons

The invention relates to a device for Joining the trailing end of an outgoing belt

with the front end of a new tape

Strip-shaped material that is processed as a prefabricated product in industrial processes is normally in the form of tape rolls with a predetermined tape length. In a variety of In cases where such supply rolls are used, it is desirable to be able to to connect a new roll of tape to an expired roll, so that a continuous tape is formed is without the working or processing method for which the tape is used, having to be stopped for an unnecessarily long time.

BATH ORIGINAL

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A number of devices of the type mentioned for gluing the ends of tapes together have therefore already been developed. The known devices have the disadvantage of being overly complicated. They consist of such a large number of individual parts that must be carefully adjusted that the Operational safety leaves a lot to be desired.

The invention is based on the object of providing a device for sticking to one another To create tapes that are simply structured and that stick together the tape ends can be carried out quickly and reliably, so that no unnecessarily long interruption of a machining or processing method for the the tape is to be used is required,

According to the invention, this object is achieved in that two mutually movable gluing tables are provided and that each gluing table means for Hold each one of the band ends to be connected. This results in a surprisingly simple one Device structure and thus a high level of operational reliability. In that, according to the invention, on the gluing tables Devices for holding a tape end are provided, the front end of the new tape can already

BATH ORIGINAL

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while the outgoing belt is still running, at one of the Adhesive tables are attached and prepared for the actual joining process «As on this Way, the connection of the tape ends has already been prepared can be before the expiring tape has completely expired, only needs a very brief interruption in operation for the actual connection process when using the device according to the invention to be done »

According to an advantageous embodiment of the invention at least one of the gluing tables is mounted so that it can pivot about an axis «, this can now be extremely advantageously the arrangement can be made in such a way that that the pivotable gluing table has such a pivot position

en

₉ assumes that the front end of the tape of the new / subsequent roll can be attached to the gluing table in preparation for the actual joining process, in which the attachment of the front end of the new tape and the trimming of the same can be carried out particularly easily.

According to a further modified advantageous embodiment of the invention is a carrier for at least two rolls of tape are provided, around one preferably

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axis lying between the two shafts is rotatable. In this embodiment of the invention, the position of the expiring roll and the hell can a particularly simple manner during operation of the new tape to be reversed "This results in the possibility ,, always one and the same splicing table for the attachment of the front end of the new tape, ie «To use for the preparation of the connection process. This is particularly advantageous when the tape ends are to be connected by means of an adhesive strip which overlaps the two tape ends to be connected. If one and the same gluing table is always used, then the adhesive strip can always be attached to one and the same side of the tape, that is, the gluing takes place either on the front side or on the back of the tape, as desired. The device can be switched extremely quickly and conveniently from the operating state “gluing on the front side ^{11 of} the tape to the operating state“ gluing on the back side ^{11 of} the tape.

Continuation: page 5

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The invention is explained in detail below with reference to an embodiment shown in the drawing _o

Show it:

Figo 1 is a schematic !! simplified front view of an execution * example of the invention and

Pig »FIG. 2 shows a schematically simplified front view of some essential individual parts of the exemplary embodiment according to FIG Fig. 1.

In Figo 1 is a Abwickelstätion for ribbon-shaped material shown with a bending

Bogie 1, which has an expiring roller to accommodate it

2 A and a full roll B with tape / is provided, The rollers A and B are ^{rotatably mounted in the usual way on spindles A 1} and B ^1, respectively, In the manufacturing or machining process in which the tape 2 is used,

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the expiring roll A is continuously unwound and that Belt 2 runs over guide rollers 3 and 4 · to a manufacturing or treatment station (not shown).

The gluing device itself has two opposing arms 5 and 6, which are pivotably mounted in a suitable manner on a fixed shaft journal 7. Gluing tables 8 and 9 are rotatably mounted at the outer ends of the arms 5 and 6, respectively. The gluing tables 8 and 9 are appropriately attached so that they ^{can rotate freely around pivot bearings 8 1} or 9 'on the arms 5 and 6, respectively · Or 11 provided. As can be seen from the drawing, the guide blocks 10 and 11 each have two open-topped, mutually intersecting guide channels 10% 10 "or" II ¹ , 11 * " and 9 serving pins 12, 13, which are fixedly arranged on the gluing tables 8 and 9, respectively, extend (see Figs. ₄ 1 and 2) into the guide channels and can slide freely in them Pin 12 of the gluing table 8 in the lower guide channel 10 · and the pin 13 of the gluing table 9 is in the upwardly extending guide *

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channel U * ·. The purpose of this is explained below explained.

Above the guide blocks IO and 11 are bearing blocks 1 * 1- or, 15 permanently arranged. The bearing blocks 14, 15 form Swivel bearing for cutting and preparation tables

16 or 17 ”As can be seen in the drawing, are the cutting and preparation tables 16,

17 normally in the position shown in solid lines, that is, in the position in which the upper surface is horizontal. Any suitable hurrying device can be provided to hold the tables 16 and 17 in their normal position. Each cutting and preparation table has a suitable cutting knife device Ι8 _ε 19

The bonding tables 8, 9 ″, which are essentially identical to one another, each have two inner cavities 21, 22, or 21 \ 22 ″, each of which is connected to several air ducts, which are, as shown in FIG to those outer surfaces of the adhesive extend tables "for receiving the 'serve to be connected to belt ends, the cavities 21, 22 _t 21" are 22 ·

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for a purpose, which will be explained in more detail below _? each in connection with a vacuum source. A suitable valve device, not shown, can be used to selectively establish the connection between the vacuum source and the individual cavities.

The operation of the apparatus of the invention will now be described _9. It should first be assumed that the subject method ^, where the tape is to be fed, is running and that the tape 2 from the expiring Hollenbach A in constant motion around the guide rollers 3p ^ and moved in the direction indicated by an arrow in the drawing. The operator now prepares a subsequent gluing process by laying the free end of the tape from the full roll B around a rounded part 16 a of the cutting and preparation table 16 and placing this free end of the tape on the table 16 "The end is now smoothed by hand on the upper surface of the table 16" Any suitable means can be used to hold the end of the tape on the table 16 ^ for example a vacuum device "

The end of the tape is now cut by the operator, preferably angled. The cutting can

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^ 9 ■ =

be performed by any sharp tool, such as one by the operator handled hand knife «In the embodiment shown

However, a cutting device 18 is shown in the form of a sliding knife which is arranged so that it can be slid across the width of the edge in a guide groove formed in the upper surface of the table 16 ', a piece of one by pressure _{The adhesive strip (not shown) to be brought into effect is then attached 6} by hand or with a suitable device to the cut end of the tape in such a way that the desired overlap is achieved in a known manner., The adhesive side of the adhesive strip is facing the table 16

After this preparation of the end of the tape, the table 16 becomes that shown in FIG. 1 with dashed lines Swiveled position. It can be seen that when the Cutting and preparation table 16 in this latter Position 1st, the rounded part 16a of the table 16 is in contact with a depression of the gluing table 8 that cooperates with it, around this set in the right location. The end of the tape (with the adhesive tape attached to it) is then manually

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ib / 4335

- ίο -

ell stripped from the cutting and preparation _{table 16 and so 1} , as shown in Pig, 1 _{0 placed} on the toilet table 8 "The tape is now smoothed on the upper surface of the adhesive table 8 mamiall. The adhesive side of the adhesive strip is turned upwards, the cutting and Vorbeieeitungsbisch 16 "(not dargesbellt) is now up to the swiveled back by solid lines in Pig, Sbellung shown I Through a suitable Ventilöinrichtung the connection between the cavities 21 \ 22 'and a vacuum source to stop the tape on the adhesive tab.

If the tape supply of the outgoing roll A is in progress A limit switch or a preset limit switch can be used for this purpose Be provided counter of the usual type, the actual gluing process triggered. As soon as the end of the expiring Role is reached, the limit switch or the corresponding counter signal actuates a hydraulic cylinder (not shown) or another suitable lifting mechanism around the oppositely arranged Arms 5 »6 to swivel the shaft journal 7 downwards. When the arm 5 pivots downward, it pivots Gluing table 8 clockwise around the pivot bearing 8 V since the pin 12 is guided in the lower guide channel 10

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When the arms 5 ₀ 6 approach the lowest layer, the gluing tables 8 “9 assume the position shown in Pig-, 2 * At about this point in the work game, the unwinding station, not shown, slows its unwinding speed in a known manner to a standstill , and the movement of the belt 2 ₉ running off the outgoing Bolle A stops. The splicing table 9 now in contact with the outgoing belt, as ls illustrated in Pig "2 ₀ The cavities 21 _B 22 will now be connected to its associated vacuum source, so that the tape wirdo both held in the upper and in the lower region on the splicing table 9 In the Further movement of the gluing tables, a hydraulically driven knife 20 of the gluing table 9 is automatically activated by means of any suitable arrangement "in order to cut off the end of the outgoing roll at an angle ₈ whereby the angled cut runs complementary to the angled cut _v that previously when cutting the front End of the tape of the full bobbins B was made on the cutting and preparation table 16, now the lower area of the gluing table 9 is automatically ventilated by some known valve device, so that the best piece of the tape 2 of the outgoing bobbins A can fall off, as shown in Fig 2. Shown is ₀ after further movement

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come the gluing tables 8, 9 at their upper ends in contact with each other and move calibrate against each other, the end of the outgoing tape to the effective part of the adhesive strip is pressed, at which, as already mentioned, is an adhesive strip to be activated by pressure effect * The synchronized movement of the adhesive tables 8, 9 is continued until they are in firm, pressing contact against each other, so that the adhesive connection of the The tape ends to be connected is now established, the vacuum that still exists at the gluing tables is now automatic dismantled and the direction of movement of the gluing tables is reversed by any suitable device, so that the arms 5 »6 spread apart again and move the gluing tables back to their starting positions. As soon as the gluing tables are out of the path of movement of the tape are moved out, the provided for unwinding the tape, not shown device is put into action again, so that the movement of the tape to the relevant Verfahrene_einrichtung continued again will. The spindle of the leaked Bolle can now be turned over to remove the empty Bolle and a to put on a new full supply roll, in the next « prepare the subsequent gluing process.

When moving the arms 5, 6 back to their starting position are the pins 12, 13 due to the geometry of the arrangement

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endeavors to enter the upwardly extending guide channels 10 ", 11". The pin 12 will, however prevented from doing so, by a locking member 25 which 8me, as shown in the reward, in the upwardly extending guide channel 10 ″ extends into it.

A similar locking member 26 is assigned to the upwardly running guide channel 11 ″. held in the retracted position so that the device is set to stick the adhesive strip to the front of the tape and the pin 13 can enter the upwardly extending guide channel 11 " Blocking gleather 25, 26 are optionally adjustable by any suitable device, for example hydraulic devices.

In the above description, the mode of operation of the device according to the invention for gluing on the front edge, i.e. when the adhesive strip is arranged on the front side of the tape. If sticking to the Tape back is desired, the effect of the two adhesive tables 8.9 is simply interchanged by only ensuring that the pin 12 in the after upward leading ^ ührungakanal 10 "enters and that the pin 13 remains in the lower guide channel 11 '.

BAD ORIGINAL Λ
109823/0073

This switching can be accomplished by any suitable switching direction. In order to perform the switching, it is only necessary that the locking member 25 is moved to the retracted inoperative position (so that the pin 12 can enter the upwardly extending guide track 10 '*) and the locking member 26 outwards (see Figure 1 ) to move into the effective position, so that it blocks the entry of the pin 13 into the guide channel 11 * '. As already mentioned above, any suitable device can be used to actuate the locking members 25, 26, for example a hydraulic device, \ Jenn. Gluing on the back of the tape is desired, then the gluing table-9 pivots when the arms 5, 6 move to the closed position and the gluing table 8 becomes the gluing table on which the knife is activated to cut the outgoing end of the tape. The 'position of the outgoing Holle for the tape and the Tollen supply roll are also reversed.

As already mentioned above, in the case of the Flg. The illustrated embodiment, the spindles A ·, B ^{1 of} the cones A and B mounted on a bogie 1. The position of the spindle A ¹ , B »can therefore be swapped by pivoting

ORIGINAL INSPECTED

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Claims (1)

Claims 1, device for connecting the rear end of a running out tape to the front end of a new tape _c, characterized in that two mutually movable adhesive lugs (8, 9) are provided and that each adhesive lugs (21, 22, 21 «, 22 *) to hold one of the tape ends to be connected. 2η device according to claim 1, characterized in that that at least one gluing table (8) about an axis (80 is pivotably mounted. Device according to Claim 1 or 2, characterized in that it is germinated net that a carrier (1) for at least two tape rolls (a, b) is provided, which is preferably between (Α ·, Β ·),, two Hollen axes / 1 legend axis (1) is rotatable. * t. Device according to one of Claims 1 to 3, characterized characterized in that as facilities for holding on. the binding suction devices (21, 22, 21 ·, 22 ·) are provided, 5 * Device according to one of claims 1 to 4-, characterized characterized in that at least one gluing table (9) is assigned a Hesser (20) which comes from a booing position - outside the tape guide in the gluing table (9) into a - 109823/0079. Working position for trimming the expiring tape end is movable. 6, device according to one of claims 1 to 5, characterized characterized in that at least one gluing table (8) is assigned a cutting and preparation table (16) is the one used to trim the leading end of the new tape and add a piece of tape serves. 7 * Device according to claim 6 with claim 2, characterized in that a guide (10) is provided for at least one gluing table (8) and that a control part (12) is arranged on this for pivoting this gluing table (8), which is in a Curved guide track (10 ') of the guide (10) is guided. 8 * Device according to claim 7, characterized in that both gluing tables (8, 9) are each assigned a cutter and preparation table (16 or 17), that both gluing tables (8, 9) around an associated axis (8 or 9 ¹⁾ * are pivotally mounted and have a disposed on this control part (12, 13) and in that each splicing table (8, 9) for generating the pivoting movement about its axis (B * or '9 ¹⁾ has a guide web (Ip-- ¹ or , 11 ·), which is optionally assigned by a locking member (25 26) can be blocked » 10 9 5H / 00 7 9 BAD ORIGINAL Device according to one of Claims 1 to 8, characterized in that the gluing tables (8 _S 9) each have a support arm (5 or 6) at one end. are pivotably mounted and that the support arms (5/5) are pivotably mounted about a common axis (7) at their ends opposite the gluing tables (8, 9). 109 823/0079