EP0363917A2 - Winding device for paper, textile or synthetic webs - Google Patents

Abstract

A winding apparatus for winding webs of paper, textile fabric, synthetic plastic material or other similar webs into tight rolls comprising a winding chamber having an inlet opening at the top and a pair of drive rollers for frictionally driving a roll of material arranged at the bottom, substantially diametrically opposite the inlet opening. One side of the winding chamber is defined by concave surfaces of a plurality of parallel wall elements, and the other side of the winding chamber is defined by a pivotally mounted shell body. In preferred embodiments, alternate devices for fastening a wound roll with an adhesive strip are disclosed. The winding apparatus of the invention can be manufactured at reasonable cost, does not require excessive space, and functions with a high degree of reliability.

Description

The invention relates to a winding device for paper, textile or other material webs from easily windable material for the production of round roll rolls with a motor-driven, roller-like winding member, by means of which the roll roll being formed is driven to rotate in a frictional manner, with a cutting device in front of the winding roller for cutting the fabric web and a transport device consisting of at least one pair of transport rollers is arranged in front of the cutting device and the peripheral speed of the winding member is greater than the transport speed of the fabric web.

A device for winding paper, corrugated cardboard, textile and plastic webs or the like is already known (DE-OS 27 37 817), in which at least three axially parallel to Longitudinal axis of the winding to be formed are arranged on pivoting levers winding rollers. These winding rollers can be deflected in the radial direction against spring pressure with their pivoting levers with respect to the longitudinal axis of the winding to be formed. The swivel levers are coupled to one another in such a way that their adjustment paths are each at least approximately the same size, so that they move away uniformly in the radial direction from the longitudinal axis of the winding to be formed. At least one of the winding rollers is provided with its own drive, which sets the winding in rotation. The winding rollers form an enveloping circle which increases in accordance with the diameter increase of the winding. In addition to the fact that this device for the storage and accommodation of the winding rollers mounted on movable pivot levers takes up a lot of space and is also very expensive in terms of production costs, the winding rollers, because they have the same direction of rotation, cannot be brought so close together that two of these rollers touch. As a result, however, there is a risk that the front end section of the paper web introduced between the winding rollers at the start of a winding formation will inadvertently run out again between two other rollers, so that winding formation does not occur unless additional devices or means are provided, which favor the formation of a winding core.

The invention has for its object to provide a winding device of the generic type, which is simple and compact, consists of a few parts, in which the core-free Wrapping automatically and safely, without the aid of additional means and also trouble-free for both small and large reel diameters and in which the finished reel can also be ejected automatically in a simple manner.

This object is achieved according to the invention in that an essentially circular winding space with a slot-like inlet opening and with a winding element arranged diametrically opposite this inlet opening is provided, segment-like protruding into the winding space, which consists of a circumferential section formed by fixed hollow surfaces and at least one Circumferential half comprising circumferential section consisting of a pivotably mounted shell body.
The particular advantage of the winding device according to the invention is its simple, space-saving construction and the fact that only a single winding member is required. It is also an advantage that the swivel-mounted shell body on the one hand represents a limitation of the winding space which leads to the formation of windings on the one hand and on the other hand enables an increase in the roll winding diameter as well as the opening of the winding space for ejecting the finished roll windings.

While it is fundamentally possible to arrange the inlet opening at any point on the periphery of the winding space the embodiment according to claim 2 the advantage that the roll wrap rests with its weight on the winding member, which means that additional pressure means can be omitted, and that the finished roll wrap preferably falls out of the winding room automatically when the shell body is opened by lifting the shell body.
The configuration according to claim 3 ensures that an opening of the winding space which is wider than its diameter or the diameter of the roll wrap can be achieved with a pivoting angle of the shell body which is smaller than 90 °.

Although it is also conceivable in principle to arrange the pivot axis of the shell body below the winding space, the arrangement of the pivot axis according to claim 4 has the advantage that the shell body is held in its closed position by its own weight, but that on the other hand it is relatively easy to swing out in the opening direction, so that he does not oppose the increasing winding diameter. In addition, this arrangement has the advantage that the shell body does not hinder the ejection of the roll.
This advantage is further increased by the configuration according to claim 5.

A particularly simple design of the shell body results from the design according to claim 6.
The embodiment of the invention according to claim 7 gives the advantage that the finished roll in the winding direction from the can open open changing room, for example, on a storage table provided according to claim 13 without opening.

It can be achieved by the configuration according to claim 8 that the roll wrap is produced shortly after it is formed, i.e. if it only comprises two to three turns, is no longer in rubbing contact with the hollow surfaces over a large area.

The embodiment according to claim 9, in cooperation with the embodiment according to claim 8, also leads to the roll roll building up taking an approximately concentric or only slightly eccentric position with respect to the winding room center, and the design according to claim 10 causes a shift with increasing roll roll diameter of the roll roll in the ejection direction and that the maximum roll roll diameter can be larger than the initial width of the winding room without hindrance.

While the configuration according to claim 11 enables automatic or program-controlled opening of the winding space at the end of a winding process, the configuration according to claim 12 has the advantage of a slight opening movement of the shell body, which can also be carried out manually.

The configuration according to claim 14 ensures that the roll winder has a smaller initial diameter than the smallest inside diameter of the winding space and that a fully wound roll wrap results.

The configurations of claims 15 and 16 result in a light and inexpensive construction, in particular when the winding rolls or the wall elements are made of plastic.

With the help of the configurations according to claims 17 to 19, it is possible in a simple manner to fasten the loose end portion of the finished roll roll with the aid of an adhesive strip to the circumference of the roll roll, so that its opening, when it is removed from the winding room, is prevented with certainty becomes.

• Fig. 1 in vereinfachter Schnittdarstellung eine
• Aufwickelvorrichtung;
• Fig. 2 eine Teilansicht II aus Fig. 1;
• Fig. 3 einen Teilschnitt III-III aus Fig. 1;
• Fig. 4 eine Aufwickelvorrichtung in vereinfachter Schnittdarstellung mit einer anderen Klebestreifenzuführvorrichtung;
• Fig. 5 einen Teilschnitt V-V aus Fig. 4.

The invention is explained in more detail below with the aid of the drawing. It shows:

• Fig. 1 in a simplified sectional view
• Rewinder;
• FIG. 2 shows a partial view II from FIG. 1;
• Fig. 3 is a partial section III-III of Fig. 1;
• 4 shows a winding device in a simplified sectional view with another adhesive tape feed device;
• 5 shows a partial section VV from FIG. 4.

The winding device shown in the drawing has a rectangular profiled support rail 3 which extends between two frame plates 1 and 2 and on which, in addition to the frame plates 1 and 2, a plurality of wall elements 4 transversely thereto at regular intervals are progressively attached. Above the mounting rail 3 and also above the wall elements 4 there is a pair of transport rollers 5 consisting of a drive roller 6 and a pressure roller 7, the shafts 8 and 9 of which are rotatably mounted in the two frame plates 1 and 2 in a vertical plane 10. The shaft 8 is provided on the outside of the frame plate 1 with a toothed belt pulley 11, which is connected via a toothed belt, not shown, to a drive motor, also not shown, and is driven by the latter. On the outside of the frame plate 2, the shaft 8 of the drive roller 6 is provided with a further toothed belt pulley 12, which via a toothed belt 13 is in engagement with a toothed belt pulley 15 which is non-rotatably fastened on a winding shaft 14.
In connection with an adhesive tape feed device described in more detail below, however, it may be more expedient to provide a separate drive motor for the winding shaft 14. The arrangement of the pair of transport rollers 5 is such that the webs or paper webs which pass between the pair of transport rollers 5 in the direction of arrow 16 and which are fed from any processing machine, for example a printing machine or an automatic drawing machine, run over a cutting rail 17, the part a cutting device 18, and over which a rotatably mounted cutting disc 19 can be guided. The cutting rail 17 is fastened in the two frame plates 1 and 2 and at the same time also on the wall elements 4, which extend from the mounting rail 3 in the feed direction 16, and serves as a counter bearing for the cutting disc 19, which is used for cutting to length a fed material web is moved over the entire length of the cutting rail 17 with the aid of a special drive, not shown here.
On the side of the cutting rail 17 opposite the pair of transport rollers 5, the wall elements 4 each have guide projections 20 which rise up to the infeed plane 21 of the fabric web and end at an arcuate end section 22. On the front side facing away from the mounting rail 3, the wall elements 4 are each provided with circular cutouts 23, the hollow surfaces 24 of which are smooth and extend approximately over the length of a semicircular arch, end at the top section 22 and merge into a rounded bearing eye 25 below. In these bearing eyes 25 of the individual wall elements 4 and in the two frame plates 1 and 2, a continuous, motor-driven winding shaft 14 is mounted, on each of which a narrow, disc-like winding rollers 27 are fastened in a rotationally fixed manner on both sides of a wall element 4, which are segment-like from below protrude into a winding space 28 and which are rotated jointly by the winding shaft counterclockwise (based on FIGS. 1 and 4). The winding space 28 is delimited on the one hand by the hollow surfaces 24 of the recesses 23 of the wall elements 4 and on the other hand by a shell body 29 opposite the hollow surfaces 24, which consists of a semi-circular, thin-walled plastic shell with a smooth inner surface 30 and which is preferably at least approximately over the entire length of the two frame plates 1 and 2 limited length of the Winding space 28 extends.

As can be seen from FIGS. 1 and 4, the hollow surfaces 24 with their center of curvature Z1 have an inner radius of curvature R1 which is approximately one eighth smaller than the inner radius of curvature R2 of the shell body 29, the center of curvature Z2 of which preferably lies in the same vertical plane V as Z1 and like the center Z of the winding space 28 lying between Z1 and Z2. The size difference between R1 and R2 can be one tenth to one fifth of R2.

It is also functionally important that the end section 22 delimiting the hollow surface 24 at the upper end has a distance a from the vertical plane V lying in the center of the winding space, which distance a should correspond to or be at least a quarter of the radius of curvature R1 of the hollow surfaces 24.
These measures ensure low-friction and trouble-free roll formation up to a maximum diameter, which can be much larger than the initial width of the winding space 28. Shortly after its creation, the roll roll is only linear and with only minimal pressure at the upper end of the hollow surfaces 24 at. The contact of the roll wrap with the shell body 29 also becomes less depressurized as the roll diameter increases, so that optimal conditions prevail for the roll wrap construction. The winding rollers 27 are expediently made of a material with a high coefficient of friction, such as rubber or the like. or they are provided with a friction jacket made of such material, and as a functional unit they form a single one, or the winding member.
As can be seen from FIGS. 1 and 4, this shell body 29 extends from an inlet opening 31 arranged diametrically opposite the winding rollers 27 on the upper side of the winding space 28 over half the circumferential section of the essentially circular winding space 28 up to the vicinity of the winding rollers 27. Das The upper end of the shell body 29 lies at the level of the inlet plane 21 and is provided with a guide plate 32 that rises obliquely upwards. The shell body 29 is fastened to at least two holders 33 arranged at its ends, of which only one is visible in FIGS. 1, 2 and 4, and which are each mounted on a pivot shaft 35 by means of a sleeve freewheel 34. The pivot shaft 35 is rotatably mounted in the two frame plates 1, 2 above the inlet opening 31 and thus the winding shaft 14 diametrically opposite and is provided outside the frame plate 1 with a toothed belt pulley 36, which via a toothed belt, not shown, with a separately controllable drive motor, also not shown in FIG there is a geared connection.
The two sleeve freewheels 34 are arranged so that the two holders 33 with the shell body 29 are freely pivotable in the opening direction of the arrow 36, so that the width of the winding space 28 can increase in the course of a roll winding by corresponding outward movement of the shell body 29 without great resistance. With this arrangement of the sleeve freewheels 34, it is on the other hand, it is also possible, by means of the drive motor (not shown) by rotating the pivot shaft 35 in the direction of the arrow 45, to pivot the shell body 29 into the opening position shown in dashed lines in FIGS. 1 and 4, so that a cutting device 18 located in the winding space 28 Roll rolls 37 already separated from the incoming fabric web can fall out of the winding room 28 and roll onto a sloping storage table 38.

In the closed position of the shell body 29 shown in FIGS. 1 and 4, together with the hollow surfaces 24 of the recesses 23 of the individual wall elements, this forms the boundary of a substantially circular winding space 28 which is concentric with a center Z and which on its top side with the inlet opening 31 and on its diametrically opposite underside is provided with the winding rollers 27 projecting segment-like into the winding space 28 and fastened on the common winding shaft 14 and represents the actual winding device. The winding shaft 14 with the winding rollers 27 forms the motor-driven winding member, which in the winding space 28 through the inlet opening 31 in the winding space 28 along the inner surface 30 of the shell body 29 in the form of an arc tapering toward the winding rollers 27 in the direction indicated by the arrows 28 ' rolls into a roll wrap 37. In order on the one hand to obtain a winding core diameter which is smaller than the inside width of the closed, empty winding space 28, and on the other hand to ensure that the winding windings lie tightly against one another To achieve the desired results, the friction rollers 27 which are frictionally connected to the incoming fabric web or to the outside of the roll winder 37 are driven in a non-positive, ie frictional drive connection at a peripheral speed which is approximately 1.2 to 1.5 times greater than the feed speed determined by the pair of transport rollers 5. This speed difference can be achieved by a corresponding gear ratio or by a larger diameter of the winding rollers 27 relative to the drive roller 6, with which the winding shaft 14, as described above, is in gear connection via the toothed belt 13.

The arrangement of the winding rollers 27 approximately vertically below the winding space center Z or the inlet opening 31 ensures that the roll roll building up rests with its full weight on the winding rollers 27, and that after the separation when the shell body 29 is opened, it automatically moves out of the Changing room 28 falls out.

As shown in Fig. 1, it is advisable to provide the shell body 29 with a larger radius of curvature than the hollow surfaces 24. This ensures that the increasing roll 37 is no longer in contact with the hollow surfaces 24 and with the shell body 29 only a narrow area is in contact and only minimal frictional resistance can be overcome.

When a roll winding 37 is finished, the transport of the incoming fabric stopped. The web of fabric is then separated from the roll roll 37 by the cutting disk 19 which is then pulled over the cutting rail 17. By again starting the winding shaft 14 briefly, the end section of the web of material is then still wound onto the roll winding 37 when the transport roller pair 5 is stationary or has moved apart. If this has happened, by switching on the separate motor driving the pivot shaft 35, the shell body 29 can be pivoted out so far that the finished roll roll 37 rolls onto the storage table 38 in the manner indicated in FIGS. 1 and 4. Since the same direction of rotation occurs when the finished roll roll 37 rolls out of the winding space 28 as when the roll roll 37 is wound, it is also ensured that the finished roll rolls 37 each remain closed or spring open only slightly. This is due to the fact that the shell body 29, which can be pivoted into an open position, is arranged behind the inlet opening 31 in the inlet direction and also the storage table 38 is arranged on the side of the winding space 28 opposite the pair of transport rollers 5.

After the motor drive has been switched off, the shell body 29 falls back into its closed position due to its own weight.

With the winding device described, it is also readily possible to wind oversized roll windings whose diameters exceed the absorption capacity of the winding space 28. If an oversized roll wrap is to be wound, it remains The shell body 29 is closed until the beginning of the roll winding reaches sufficient stability, that is to say it comprises approximately 2 to 3 turns. Then the shell body 29 is pivoted into its open position so that it does not hinder the further construction of the roll wrap.

Depending on the nature of the material from which the material web is made, it may also be necessary or at least advantageous to fasten the outer end portion 38 of the roll wrap 37 to the circumference of the roll wrap 37 with a suitable means before it leaves the winding space 28. For this purpose, the invention provides two different devices, which are shown in FIGS. 1 and 3 or 4 and 5.
In both embodiments, a pressure roller 40, which has the same diameter as the winding rollers 27, is fixedly arranged in the longitudinal center between two wall elements 4 and two winding rollers 27 on the winding shaft 14.

In the embodiment of FIGS. 1 and 3, a carrier tape 41 covered with a removable adhesive film is guided over this pressure roller 40 shown in FIG. 3 and is unwound from a supply roller 43 rotatably arranged in a cassette 42 and wound up again on a winding mandrel 44. The adhesive film is located on the outside of the smooth carrier tape 41 so that it comes into contact with the end portion 39 or the circumference of the roll roll 37 when it is guided over the circumference of the pressure roller 40. The supply takes place through a no closer shown drive device of the winding mandrel 44, which pulls the carrier tape over the pressure roller 40. This drive is controlled in such a way that when the end section 39 separated by the cutting device 18 approaches the pressure roller 40, the upper end section of the adhesive film located thereon is pressed onto the outside of the arriving end section 39 by a corresponding advance of the carrier tape 41 and then also adhered to the peripheral portion of the roll wrap 37 following the end portion 39. Then the drive of the winding mandrel 44 is stopped and the supply roll 43 is brought to a standstill or is caused to move slightly backwards while the winding rolls 27 continue to run. This will tear off the thin adhesive film. The short backward movement of the supply roll 43 then removes the torn end of the adhesive film remaining on the carrier tape 41 from the point of contact between the pressure roll 40 and the roll roll 37, so that the adhesive film is not a hindrance in the subsequent winding process.

In the device shown in FIGS. 4 and 5, an adhesive tape roll 47 is mounted on a bearing mandrel 46 below the winding device. This adhesive tape 57 consists of a paper or plastic tape provided on one side with an adhesive layer, which is fed to the pressure roller 40 by a pair of transport rollers 48, which is arranged below the winding rollers 27. The pressure roller 40 is provided with two resilient guide rollers 49 and 50. Between the pair of transport rollers 48 and the Pressure roller 40 is a cutting device 51 is arranged, which serves to separate the tape sections that are required for sticking the tape sections 39 of the individual roll rolls 37 on their circumference.

So that the shell body 29 is not hindered by the guide roller 49 when it is pivoted out, it is provided with a cutout 52 in the region of the guide roller 49.

At the end of a winding process, when the end section 39 approaches the pressure roller 40, the pair of transport rollers 48 is started, which transports the upper end of the adhesive tape 57 between the guide rollers 49, 50 and the pressure roller 40, so that it first reaches the end portion 39 and then pressed onto the subsequent peripheral portion of the roll roll 37. However, as soon as the leading end edge of the adhesive tape 57 has reached the point of contact between the roll 37 and the pressure roller 40, the cutting device 51 is actuated. At the same time, the pair of transport rollers 48 is stopped.

In both adhesive tape feed devices, it is necessary that the web feed by the pair of transport rollers 5 remains interrupted after the roll roll 37 has been cut off until the finished roll roll 37 has left the winding room 28 and the shell body 29 has returned to its closed position so that the beginning of the following roll roll 37 does not come into contact with the adhesive tape of the roll roll 37 just completed. If instead of the disc-like winding rollers 27 on the winding shaft 14 are arranged between the individual wall elements 4 roller-like winding members, there is also the possibility in the embodiment of FIGS. 4 and 5 to pass the adhesive tape 57 directly over such a roller-shaped winding member, if this in a manner analogous to the pressure roller 40 with one or two guide rollers 49, 50 is provided.

Otherwise, the mode of operation of the winding device shown in FIGS. 4 and 5 is the same as that of FIGS. 1, 2 and 3.

Claims (19)

1. Winding device for paper, textile, plastic or other material webs made of easily windable material for the production of round roll windings with a motor-driven, roller-like winding member, by means of which the roll roll that is formed is driven to rotate in a frictional manner, one in the feed direction in front of the winding roller Cutting device for cutting the fabric web is located and a transport device consisting of at least one pair of transport rollers is arranged in front of the cutting device and the peripheral speed of the winding member is greater than the transport speed of the fabric web,
characterized,
that an essentially circular winding space (28) with a slit-like inlet opening (31) and with an approximately diametrically opposed arrangement of this inlet opening (31), segment-like into the winding space (28) protruding winding member (27) is provided for the roll winding, which is provided from one of fixed hollow surfaces (24) formed circumferential section and an at least one circumferential half comprising a swivel-mounted shell body (29) existing circumferential section is formed. 2. Winding device according to claim 1, characterized in that the inlet opening (31) on the top of the winding space (28) is arranged and that the winding member (27) on the underside of the winding space (28) at least approximately in the vertical plane ( V ) of Winding room center (Z) is arranged. 3. Winding device according to claim 1 or 2, characterized in that the shell body (29) comprises the circumferential portion of the winding space (28) extending in the winding direction from the inlet opening (31) to the winding member (27). 4. take-up device according to claim 2 or 3, characterized in that the shell body (29) is pivotable about the axis of a pivot shaft (35) which is arranged above the inlet opening (31) of the winding space (28). 5. Rewinder according to claim 4, characterized in that the axis of the pivot shaft (35) is arranged at least approximately in the vertical plane ( V ) of the winding space center (Z). 6. Winding device according to one of claims 1 to 5, characterized in that the shell body (29) consists of an approximately semicircular, thin-walled plastic shell with a smooth inner surface (30). 7. Winding device according to one of claims 1 to 6, characterized in that the pivotable shell body (29) in the inlet direction (arrow 16) is arranged behind the inlet opening (31). 8. Winding device according to one of claims 1 to 7, characterized in that the fixed hollow surfaces (24) have an inner radius of curvature (R1) which is about a tenth to a fifth smaller than the inner radius of curvature (R2) of the shell body (29 ). 9. take-up device according to claim 8, characterized in that the center of curvature (Z1) of the hollow surfaces (24) and the center of curvature (Z2) of the shell body (29) are vertically offset from one another and at least approximately in the vertical plane ( V ) of the winding space center (Z) lie. 10. Winding device according to one of claims 2 to 9, characterized in that the hollow surfaces (24) end at upper end portions (22) which are at a distance ( a ) from the vertical plane ( V ) of the winding space center (Z), which is at least one Corresponds to a quarter of the radius of curvature (R1) of the hollow surfaces (24). 11. Winding device according to one of claims 1 to 10, characterized in that the shell body (29) by means a motor drive is pivotable into an open position. 12. A winding device according to claim 11, characterized in that the shell body is mounted on a pivot shaft (35) which can be driven by a motor in the opening direction by means of a one-way clutch (34) which enables radial opening. 13. Winding device according to one of claims 6 to 12, characterized in that below the shell body (29) a sloping outwardly sloping storage table (38) is arranged. 14. Winding device according to one of claims 1 to 13, characterized in that the winding member is driven at a peripheral speed which is at least 1.2 times greater than the conveying speed of the pair of transport rollers (5). 15. Winding device according to one of claims 1 to 14, characterized in that the winding member consists of several roller-like or disc-like winding rollers (27) of the same diameter attached to a common winding shaft (14) at uniform axial distances. 16. Winding device according to claim 1, characterized in that that the fixed part of the winding space (28) is formed by a plurality of wall elements (4) arranged between the winding rollers (27), each of which is provided with arcuate recesses (23) forming the hollow surfaces (24) and thus the winding space contour. 17. Winding device according to claim 1, characterized in that a roller-like winding roller or a pressure roller (40) arranged between two winding rollers (27) on the winding shaft (14) from a supply roller (43, 47) arranged underneath it is an adhesive strip for gluing the end web section ( 39) is fed to the roll wrap (37). 18. Rewinder according to claim 17, characterized in that the adhesive strip is transferred in the form of an adhesive film from a smooth carrier tape guided over the pressure roller (40) onto the roll wrap (27). 19. Rewinder according to claim 17, characterized in that the adhesive strip in the form of a paper or plastic tape afflicted on one side with an adhesive layer by means of a separately drivable transport roller pair (48) through a cutting device (51) through the contact point between the roll wrap (37) and one roller-shaped winding roller or the pressure roller is fed.

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