WO1991002691A1

WO1991002691A1 - Device for securing the end of a roll of textile material in a winding machine

Info

Publication number: WO1991002691A1
Application number: PCT/EP1990/001355
Authority: WO
Inventors: Bertil Jacobsson
Original assignee: Iro Ab
Priority date: 1989-08-17
Filing date: 1990-08-17
Publication date: 1991-03-07
Also published as: AU6170190A; DE3927209A1

Abstract

Disclosed is a device (V) for securing the free end (20) of a roll (3) of textile material with adhesive tape (31). Disposed in a lever mechanism (A) is at least one adhesive-tape dispenser (25) with a tape-cutting device (34) such that the dispenser can be swung round and tilted from its dispensing position at the edge of the roll to a cutting position by means of a rod system (15) and a crank guide (K).

Description

Device for securing the winding end of a roll winding in a textile web winding device

description

The invention relates to a device of the type specified in the preamble of claim 1, and a winding device of the type mentioned in claim 15.

The free end of a roll of a textile web must be secured before the roll is removed. For this purpose it is known to apply at least one adhesive strip section by hand, with which the winding end is secured. To do this, the adhesive tape dispenser is first placed by hand on the circumference of the roll until the adhesive tape adheres. Then either the roll wrap is rotated or the dispenser is moved around the wool wrap until a sufficiently long section of adhesive tape is pulled out and glued to the roll wrap. The adhesive strip is expediently placed around the circumference at least once in order to securely fix the winding end. Then the adhesive strip is cut off by tilting the dispenser. This process is time consuming, exhausting and tedious. The expenditure of time is disadvantageous because the further transport of the roll winding is delayed until the end of the winding is secured, even if the adhesive strips are applied in a transfer station downstream of the winding station. This is disadvantageous especially in the case of so-called inspection machines with high throughput speeds and fast work cycles.

The invention has for its object a Specify device of the type mentioned and a winding device for the manufacture of roll windings, in which the free end of a roll roll is secured quickly and reliably.

The object is achieved with the features specified in the characterizing part of patent claim 1.

In a simple and time-saving manner, the adhesive strip is automatically applied and cut off by means of the dispenser attached to the roll winding circumference. The rotary motion of the roll wrap can be used profitably to wrap the tape around the roll wrap. The winding end is secured quickly and without auxiliary personnel. Using the lever mechanism, the dispenser is brought into the position that depends on the diameter of the roll winder. Using the swivel linkage and the slide guide, the tightening of the adhesive strip on the one hand and its correct cutting on the other hand are easily controlled. If securing in a transfer station of a winder, e.g. done in an inspection machine, the reel only needs to remain there for a very short time. Since no operating personnel need to have access, the device can be integrated deeply into a winding device.

An expedient embodiment emerges from claim 2. Here, several adhesive strips can be applied at the same time, expediently distributed over the length of the roll winding, in order to securely fix the winding end.

A structurally simple embodiment continues to go out Claim 3 out. Using the swivel drive, the dispenser is immediately brought up to the reel when it is ready. The dispenser is then removed from the work area so that the finished roll can be taken away undisturbed.

A mechanically simple movement control of the dispenser movement is given in the embodiment according to claim 4. With small movements of the swivel drive, precise movement control and a large working area for the dispenser are made possible, which is important in view of different large roll winding diameters.

Another, particularly important idea emerges from claim 5. The positioning device guides the dispenser exactly to the reel regardless of its diameter. In addition, the dispenser is supported when the adhesive strip is applied, so that it does not swing or oscillate. If necessary, the positioning device is connected to the console for stiffening.

A clean support of the positioning device itself on the rotating reel is given in the embodiment according to claim 6, regardless of the reel diameter.

A further, expedient embodiment, in which the roll winding is rotatably arranged in a station, is evident from claim 7. The position of the adhesive tape dispenser results in a favorable lever arm when taking the adhesive tape applied to the roll winding circumference. A clean separation of the adhesive strip after reaching the desired length is given in the embodiment according to claim 8.

In terms of construction, the embodiment according to claim 9 is expedient since it takes up little installation space and has as few parts as possible.

The teardrop shape of the adhesive tape dispenser according to claim 10 allows the dispensing opening of the dispenser to be brought directly to the circumference of the roll wrap. Since the tilt axis is provided approximately centrally in the dispenser housing, it can be tilted easily.

A structurally simple and functionally reliable embodiment is also apparent from claim 11. With the main lever, the dispenser is pivoted relative to the console, while the rocker arm also tilts it so far to cut off the adhesive strip until the cutting device becomes effective. The guide link controls the tilting of the dispenser forcibly and in such a way that a rapid and exaggerated tilting movement which is expedient for the rapid cutting off of the adhesive strip occurs.

What is important here is the measure according to claim 12, because with a simple construction of the swivel linkage, the donor can move freely.

Furthermore, the embodiment according to claim 13 is expedient, because in this shape of the guide link a sudden tilting of the dispenser is controlled, which is important for the clean separation of the adhesive strip. The main lever only needs to cause the dispenser to pivot. The The rocker arm takes care of tipping with the guide link.

The embodiment according to claim 14 is expedient with regard to automatic actuation. As soon as the roll wrap is present, the drives are actuated via the control device, as a result of which the beginning of the adhesive tape is reliably placed on the winding roll circumference and taken along by it, before the dispenser is pivoted and tilted by means of the actuator when the desired length of adhesive tape is reached, in order to cut off the adhesive tape.

In a winding device which can be removed from claim 15 and has a station for storing and rotating the roll winder, the free end of the winding is securely fixed after positioning the roll winder in the station by means of a plurality of adhesive strips. Using the positioning device, the dispenser is first placed with the dispensing opening on the circumference of the winding roll until the adhesive strip adheres and is taken away. Shortly before a predetermined length of adhesive tape is dispensed, the dispenser is tilted into the cut-off position in which it separates the adhesive tape. The rotating movement of the roll wrap is used to fix the tape.

The winding device can be used expediently with the device according to claim 18 in an inspection machine for textile webs. The device for applying the adhesive strips is a modular unit that can be integrated into the inspection machine without any significant modifications, even expediently in the course of retrofitting or retrofitting. With regard to a fully automatic securing of the winding end, the embodiment according to claim 16 is useful. As soon as or while the dispenser is applying the adhesive strip (for example one and a half long lengths), it is pressed onto the roll by the pressure rollers.

It is expedient, according to claim 17, to use the rolls rotating the roll roll in the transfer station at the same time as pressure rolls for the adhesive strip.

An embodiment of the subject matter of the invention is described with the aid of the drawing. Show it.

FIG. 1 a shows a schematic side view of a winding device with a device for applying the adhesive strip, in a first working position, and

1b shows the device for applying adhesive strips in a second working position,

2 is a perspective view of a detail of FIG. 1,

Fig. 3 is a section in the plane 3-3 of Fig. 2, and

4 shows a schematic front view of a device for applying a plurality of adhesives.

REPLACEMENT LEAF contest.

According to FIGS. 1 a, 1 b, 2 and 3, a device V for applying adhesive strips 31 is provided in a winding device W. In the winding device W, roll windings 3 are formed in succession. Each finished roll roll 3 is then brought onto drivable rolls 2 of a transfer station 1. The respective free winding end 20 is secured there by means of adhesive strips 31, which are placed around the roller winding 3 by more than a full circumferential length and pressed on. The device V is incorporated in an inspection machine for textile webs, not shown, and operates fully automatically.

The device V for applying the adhesive strips contains a lowering lever mechanism A with an approximately horizontally extending elongated main carrier 6, which is pivotally supported in a stationary bearing 4 at one end 7 by means of an auxiliary lever 5. A swivel drive 9, expediently a pneumatic cylinder, is supported in a further bearing 10 and articulated on the main support 6 in a swivel point 8 at a distance from the end 7. At the opposite end 18 of the main support 6, an actuator 17, advantageously a pneumatic cylinder, is supported. Between the end 18 and the articulation point 8 is at 11

Positioning device T is provided with an auxiliary arm 12 which extends approximately vertically downward from the main carrier 6. Between the articulation point 11 and the end 18, a bracket 16, which runs approximately vertically downward from the main support 6, is fastened at 14. In the positioning device T, two rollers 13 are arranged at a distance on the auxiliary lever 12, which rest on the roller reel 3 from above when the swivel drive 19 is extended.

A pivot linkage 15 is attached to the console 16 and can be adjusted by means of the actuator 17. The actuator 17 acts on a pivot point 19 of a two-armed main lever 22, which is supported between its ends in a pivot bearing 21 on the console 16. The other end of the main lever 22 supports a tilt axis 30 of an adhesive tape dispenser 25 in a socket 23, which has a teardrop-shaped housing. Eccentric to the tilt axis 30, a pin 26 is provided on the dispenser 25, on which a rocker arm 28 is articulated, the other end of which is articulated in a pivot point 27 on the console 16. The pivot point 27 is located a short distance below the pivot bearing 21 of the main lever 22.

At the lower end of the console 16, a guide link 29 with an arcuate course is firmly attached, in which the tilting axis 30 of the dispenser 25 engages. The tilt axis 30 of the dispenser 25 is approximately at the same height as the axis of the rollers 13 of the

Positioning device T, which serves for the exact placement of the dispenser 25 in the roll winding circumference regardless of the respective diameter of the roll roll 3.

In Fig. La the roll roll 3 is ready in the station. The free winding end 20 is loose. By actuating the swivel drive 9, the rollers 13 are lowered onto the roller winding circumference. In this position, a dispensing opening 32 of the dispenser 25 presses a hanging end of the adhesive tape onto the Roll winding circumference, namely at a point aligned in the pivoting direction of the main carrier 6 approximately on the axis of rotation of the roll winding 3. The roll winding 3 is then rotated in the direction indicated by an arrow. The adhesive strip 31 is taken along. This is the dispensing position of the donor 25.

In Fig. Lb the dispenser 25 is shown in its cut-off position, in which it cuts off the adhesive strip 31. The dispenser 25 has reached this position in that the actuator 17 is extended and has pivoted the main lever 22 counterclockwise in the pivot bearing 21. When pivoting, the tilt axis 30 slides away from the console 16 along the guide link 29. Thanks to the rocker arm 28, the dispenser 25 is simultaneously rotated counterclockwise by approximately 90 °. In order that a pronounced tilting movement occurs, which leads to the adhesive tape being securely separated, the guide link 29 of the link guide K according to FIG. 1 a can have an initial region 39 which is approximately concentric with the pivot bearing 21 and an end region 40 which is bent towards the knee. The socket 23 of the main lever 22 is designed as an elongated hole 25.

While the dispenser 25 has moved into the cut-off position shown in FIG. 1b, the roll winding 3 has continued to rotate counterclockwise, so that it is provided with the adhesive strip 31 which secures the free winding end 20 by more than one circumferential length. In the cut-off position according to FIG. 1b, the adhesive strip 31 is cut off. As a result of the contact pressure of the roll roll 3 on the rolls 2, the adhesive strip 31 is pressed on during the further rotation. Should the roll wrap 3 by means of a central winding core and an axial rotary drive, additional pressure rollers or pressure runners could be provided for the adhesive strip 31. Expediently, a plurality of adhesive strips 31 are applied simultaneously over the winding length. The finished roll winding 3 with the secured winding end 20 is then removed, the pivot drive 9 previously moving the main carrier 6 into a raised position in which the removal of the roll winding 3 is not hindered. Furthermore, by actuating the actuator 17 again, the dispenser 25 has been pivoted back into the dispensing position shown in FIG. The device V is ready for the next operation.

From Fig. 2 it can be seen that the guide link 29 is molded into a link part 33 integrally molded at the lower end of the bracket 16. A knife or other cutting device 34 is provided in the dispensing opening 32 of the dispenser 25, which, for example by cutting the dispenser 25 counter-clockwise, cuts off the adhesive strip 31 in a known manner. The dispenser 25 is a commercially available refillable adhesive tape dispenser.

2 and 3, the rocker arm 28 is housed between the console 16 and the main lever 22, while the dispenser 25 is located on the side of the main lever 22 facing away from the console 16. However, the dispenser 25 could also be arranged on the other side of the console 16, as could the rocker arm 28. The tilt axis 30 of the dispenser 25 is expediently guided in the guide link 29 by means of a smooth-running bearing. The console 16 can be fixedly connected to the main carrier 6 in order to act under the force of the actuator 17 not to give in when the dispenser 25 has to be pivoted and tilted. It is also conceivable to use the actuator 17 between the bracket 16 and the main lever 22 below the pivot bearing 21. Another alternative would be to use an electric motor as an actuator 17, which controls the movement of the dispenser 25, for example via a toothed rack.

The control can be designed so that an actuation signal for the swivel drive 9 is generated when the roll roll 3 is wound when the roll roll 3 has reached station 1. The swivel drive 9 then places the rollers 13 on the roller reel 3 in order to position the dispenser 25 in a functional manner. As soon as the rollers 2 are driven for a predetermined period of time (1.5 revolutions of the roller winding 3), the actuator 17 is also actuated in order to pivot and tilt the dispenser 25. By means of a timing element or a tachometer generator, which monitors the rotary movement of the roll winding 3, the period of time until the adhesive tape 31 is cut off can be set, so that the device V operates fully automatically and quickly.

Fig. 4 illustrates an embodiment with several synchronously controlled simultaneously

Donors 25a - 25c. The number of dispensers is arbitrary and depends on the requirements for securing the free winding end 20 of the processed roll roll 3. To simplify the construction, a single pivot drive 9 is provided, which comprises the main lever 6 consisting of two parallel main lever parts 6a, 6b and at least one cross member 6c acted on at 8. The main lever 6 is in two stationary bearings 4a, 4b each supported an auxiliary lever 5a, 5b. Three brackets 16a, 16b, 16c, which run parallel to one another, are fastened to a transverse bracket part 14a fastened to the main lever 6 at 14, the pivot bearings 21a, 21b, 21c for three main levers 22a, 22b, 22c and guide links 29a, 29b, 29c for the tilt axes 30a, 30b, 30c of the three dispensers 25a, 25b, 25c. The three main levers 22a, 22b, 22c are coupled by a transverse yoke 22d for a common movement. The actuator 17, which is supported with the other end (not shown) on the main lever 6, engages the transverse yoke 22d. A rocker arm 28a, 28b, 28c is provided for each dispenser 25a, 25b, 25c and articulated at 27a, 27b, 27c on the respective main lever 22a, 22b, 22c on the one hand and on the transverse pin 26a, 26b, 26c of each dispenser 25a, 25b, 25c on the other hand . Each main lever 22a, 22b, 22c has the socket 23a, 23b, 23c for the tilt axis 30a, 30b, 30c of each dispenser 25a, 25b, 25c.

It is also conceivable to allow the movement control by the actuator 17 to act only on one of the intended dispensers and to positively couple the other dispensers to this driven dispenser so that they follow its movement synchronously. The dispensers are expediently easily exchangeable, either separable from their tilting axis or detachably held in the device with the tilting axis. The housing of each dispenser is also designed so that the housing can be opened at any time to replace a used supply of adhesive tape.

The tilting cutting edge 34 provided in the discharge opening 32 is expediently a serrated, sharp blade, which is caused solely by the tilting movement of the housing around the Tilt axis 30 cuts off the adhesive strip 31, which is under a tensile load, for example. However, it would also be possible to provide a mechanically operated cutting device which is actuated as a function of the relative movement of the dispenser with respect to the rocker arm 28 or the guide link 29. The device according to FIG. 4 can also be incorporated into an inspection machine for textile webs. It can be a modular unit that can be retrofitted without significant modification to the machine.

Claims

1. Device for securing the free winding end of a roll winding in a textile web winding device with adhesive strips, characterized in that at least one adhesive strip dispenser (25, 25a-c) with a cutting device (34) is arranged on a lowering lever mechanism us (A) that the dispenser (25, 25a-c) in the lowering lever mechanism (A) by means of a swivel linkage (15) and a link guide (K) from a dispensing position on the roll winding circumference in a cut-off position is movably and tiltably mounted, and that between the lowering lever mechanism (A) and the swivel linkage (15) an actuator (17) is provided.

2. Apparatus according to claim 1, characterized in that in the lowering-lever mechanism (A) over the length of the reel (3) distributed several adhesive tape dispensers (25, 25a-c) are provided.

3. Apparatus according to claim 1, characterized in that the lowering lever mechanism (A) in a stationary bearing (4, 4a, 4b) is pivotally mounted, and that at a pivot point (8) of the lever mechanism (A) is a stationary supported pivot drive (9) is connected.

4. Device according to one of claims 1 to 3, characterized in that the lowering lever mechanism (A) has a main carrier (6) which at one end (7) via a pivotable auxiliary lever (5) in the bearing (4) is supported that the swivel drive (9) engages tightly on the main support (6), that the actuator (17) is supported near the end (18) of the main support (6) facing away from the auxiliary lever (5), and that between the articulation point (8 ) and the end (18) is a bracket (16) projecting approximately perpendicularly from the main support (6), on which the pivot linkage (15) is mounted and a guide link (33, 29) for the adhesive tape dispenser (25) are provided .

5. Device according to one of claims 1 to 4, characterized in that on the main support (6) between the bracket (16) and the articulation point (8) has a support arm (12) • one, preferably the roller winding (3) scanning, positioning, Device (T) for the dispenser (25) is arranged, which can be attached to the roll (3) approximately at the level of the tilt axis (30) of the adhesive tape dispenser (25).

6. The device according to claim 5, characterized in that the positioning device (T) on the winding roll circumference includes rollers (13).

7. Device according to one of claims 1 to 6, wherein the roll winding is rotatable, characterized in that the adhesive strip dispenser (25) has an output opening (32) for the adhesive strip (31) and a cutting edge (34) arranged there, and that the dispenser (25) with the dispensing opening (32) in the dispensing position in the pivoting direction of the lowering lever mechanism (A) is aligned approximately with the axis of rotation of the roller winding (3).

8. The device according to claim 1, characterized in that the adhesive strip dispenser (25) in the Cut-off position with the dispensing opening (32) opposite the winding direction from the roll winding circumference.

9. Device according to one of claims 1 to 8, characterized in that for the swivel linkage (15) of the adhesive tape dispenser (25, 25a-c), a common actuator (17), advantageously a pneumatic cylinder, is provided.

10. Device according to one of claims l to 9, characterized in that the adhesive tape dispenser (25) has a teardrop-shaped housing which can be tilted about the approximately central tilt axis (30).

11. Device according to one of claims 1 to 10, characterized in that a two-armed main lever (22) is provided in the pivot linkage (15) which holds the tilting axis (30) at one end in a socket (23), at the other end ( 19) acted upon by the actuator (17) and in between in a pivot bearing (21) on the console

(16) is mounted on the bracket (16) at (27) a rocker arm (25) is pivotally mounted, the other end of which on the housing of the adhesive tape dispenser (25) on a pin (26) eccentric to the tilt axis (30) ) engages, and that the tilt axis (30) engages in the guide link (29, 33).

12. Device according to one of claims 1 to 11, characterized in that the guide link (29) concentric to the pivot axis (21) of the main lever (22).

13. The device according to one of claims 1 to 12, characterized in that the socket (23) for the Tilt axis (30) in the main lever (22) is an elongated hole (35), and that the guide link (29) has a starting region (39) which is approximately concentric with the pivot axis (21) of the main lever (22) and an end region (40) bent like a knee .

14. Device according to one of claims 1 to 13, characterized in that the pivoting and the actuator (9, 17) are connected for automatic actuation to a common control device.

15. winding device with a station for storing a rotatable by peripheral or axial drive roller winding, characterized in that for the automatic application of the free winding end (20) securing adhesive strips (31) on the roller winding (3) above the station (1) a lowering -Lever mechanism (A) with a plurality of automatic cut-off devices (32), adhesive tape dispensers (25a-c) and a dispenser positioning device (T) is stationary, and that the adhesive tape dispensers (25, 25a-c) are in synchronism between a dispensing position on the roll winding circumference and a cutting position can be driven to move in such a way that the adhesive strips (31) carried along by the roll winding (3) are automatically cut off during the movement into the cutting position.

16. Winding device according to claim 15, characterized in that drives (9, 17) for the lowering lever mechanism (A), the adhesive tape dispenser (25, 25a-c), and the roll winder (3) are connected to a controller which is set such that each adhesive tape dispenser corresponds to at least one full roll wrap circumferential length Adhesive tape section applies to the roll wrap (3), and that in the winding station (1) pressure rollers (2) are provided for the adhesive strips (31).

17. Winding device according to claim 16, characterized in that the pressure rollers (2) are provided for rotating the roller winding (3), drivable rollers in a downstream of the actual winding station Italadestation (1).

18. Winding device according to one of claims l to 17, characterized in that the winding device (W) with the device (V) in one

Textile web inspection machine is integrated as a building module.