EP1675796A2 - Device for laying a flexible material web - Google Patents

Device for laying a flexible material web

Info

Publication number
EP1675796A2
EP1675796A2 EP20040787571 EP04787571A EP1675796A2 EP 1675796 A2 EP1675796 A2 EP 1675796A2 EP 20040787571 EP20040787571 EP 20040787571 EP 04787571 A EP04787571 A EP 04787571A EP 1675796 A2 EP1675796 A2 EP 1675796A2
Authority
EP
European Patent Office
Prior art keywords
laying
web
rollers
carriage
point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20040787571
Other languages
German (de)
French (fr)
Other versions
EP1675796B1 (en
Inventor
Peter Steyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Saurer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE2003148529 priority Critical patent/DE10348529B4/en
Application filed by Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Priority to PCT/IB2004/003827 priority patent/WO2005037695A2/en
Publication of EP1675796A2 publication Critical patent/EP1675796A2/en
Application granted granted Critical
Publication of EP1675796B1 publication Critical patent/EP1675796B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00Folding thin material
    • B65H45/02Folding limp material without application of pressure to define or form crease lines
    • B65H45/06Folding webs
    • B65H45/10Folding webs transversely
    • B65H45/101Folding webs transversely in combination with laying, i.e. forming a zig-zag pile
    • B65H45/103Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by a carriage which reciprocates above the laying station
    • B65H45/105Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by a carriage which reciprocates above the laying station coacting with fold holders

Abstract

A device for laying a flexible material web (1) has at least one pair of deposit rollers (2, 3) that rotate in opposite directions, it being possible to supply the material web (1) to at least one point of deposit (4) by means of the deposit rollers (2, 3). The deposit rollers (2, 3) form part of a deposit carriage (5) movable in a reversible direction over at least the deposit length (L) of the material web (1), making a higher production speed possible. The device is more cost-effective in that the deposit carriage (5) has a smaller width than the point of deposit (4) and is movable in a reversible direction over at least the deposit width (B) of the point of deposit (4).

Description

 "Device for depositing a flexible material web"

The present invention relates to a device for depositing a flexible material web with at least one counter-rotating pair of laying rollers, the material web being able to be fed by means of the laying rollers to at least one laying point, the laying rollers being part of a laying carriage which can be moved at least over the laying length of the material web with reversible orientation is.

A device of the type in question results from DE 101 25 452 C2, a web of material being guided over laying rollers to a depositing point. The laying rollers are part of a laying carriage that has a width dimension that corresponds to the width of the laying point. The depositing point can be designed as a pallet, as a lifting table, as cardboard or the like. There is one storage location per laying trolley, on which storage can be carried out in the longitudinal and transverse directions. Laying down in the longitudinal direction is achieved by the movability of the laying carriage in the longitudinal direction. The laying down in the transverse direction is realized in that the material web, if it is narrower than the width of the laying rolls, is moved across these. For this purpose, a material feed device is equipped so that it can be moved across.

The fact that the laying trolley according to the prior art is always roughly the same width as the laying point or the stack that is created there, means that a very extensive and heavy design is required. Such a design means that larger masses have to be accelerated, i.e. strong drives are used, which of course is associated with high costs in terms of design and in terms of the energy required. In addition, large, heavy designs are always at the expense of production speed.

Another device for depositing a flexible material web results from DE

298 23 580 U1. In this device, too, a counter-rotating pair of laying rollers is provided, via which the material web is fed to a depositing point. The laying rollers from DE 298 23 580 U1 are not part of a laying carriage and have - how in the aforementioned state of the art - the same width dimension as the deposit point and, moreover, are also not traversable.

From DE 44 38 770 A1 a device is known which deals with the take-up of yarn take-up rolls or the equipping of winding machines with yarn take-up rolls. This device has a memory for holding these roles. So it is a memory in which rolls are stored.

DE 196 44 383 C1 deals with a swiveling laying arm, not with laying rollers.

Starting from the prior art known from DE 101 25 452 C2, the laying carriage having a width dimension which corresponds to the width of the depositing point and which cannot be moved across, it was far away for an average person skilled in the art to think about problems with a reduction in production time by reducing the To make the width dimension and transverse movement of the laying rollers together with the laying carriage. Consequently, on the filing date of the teaching claimed here, an average specialist - based on the document in question - had no reason to look around in the relevant prior art for appropriate problem solutions. Finding the problem addressed here represents a first inventive step.

DE 298 23 580 U1 merely provided an average specialist with the hand

to design the material feed device using reciprocating guide rollers in such a way that the material web can be moved transversely within the laying rollers.

At no point in the pamphlets in question is a note to be found

Reduce laying rollers in the width dimension compared to the placement point and move them across. Starting from the known prior art, the invention has for its object to provide a device of the type in question, which enables a higher production speed and is cheaper.

The above object is achieved by the features of claim 1. According to this, a device of the type in question is designed and developed in such a way that the laying carriage has a smaller width dimension than the depositing point and can be moved with reversible orientation at least over the depositing width of the depositing point.

First of all, it was recognized that previous laying processes across the width of the depositing point were always carried out via the transverse movements of the material web itself, and that the laying carriage or the laying rolls are just as wide as the depositing point itself and are therefore large, heavy-duty designs which severely limit the production speed , According to the invention, it was recognized that a higher production speed is possible and the device can be made more cost-effective overall if the laying car has a smaller width dimension than the placement point or the stack formed. In this way, mass and size are reduced and material and drive energy saved. If a lightweight design with small dimensions can be moved lengthways and crossways, this also opens up the possibility of approaching several laying points with a laying carriage and successively supplying different laying points with the material web. The enormous advantage of the device according to the invention, which is movable in the longitudinal and transverse directions, lies in the flexible filling of depositing points with less construction effort and low operating costs. It should be expressly emphasized that the device or the laying carriage not only enables the longitudinal and transverse movement in the area of a single depositing point, but also the method for several bending points which are arranged next to one another and / or one behind the other.

In terms of design, the laying carriage could be part of a frame that is arranged on a frame so that it can be moved across. It is particularly advantageous if the reading car would also be adjustable in height, since lifting tables could then be dispensed with. Due to the height adjustment of the laying carriage, regulating and control processes could be implemented more easily than when setting an external lifting table. The laying trolley could also be part of the frame here and the frame could be moved, for example, on vertical columns of the frame.

Another, in another respect advantageous embodiment of the device according to the invention, wherein lifting tables are used, provides that the laying carriage supplies two depositing points with the material web. As soon as a stack is formed, the laying carriage can be moved to the next laying point and the laying process can begin there. In this way, longer downtimes are avoided. All that is required is a cutting process to cut off the material web after the desired stack height has been achieved. The cutting process could be carried out in such a way that the new start of the strip is already on its way to the laying rollers.

With regard to high production speeds, it is also of great advantage if the device according to the invention has means for holding down the uppermost deposited material web. The means for holding down could extend parallel to the deposited material web and contact it in the area of the uppermost deposited material web and thus hold it down. The contact of the means for holding down with the uppermost material web can largely rule out wind, air turbulence or similar influences, especially in the case of light materials with a weight of less than 60 g / m 2 , as well as undesirable deformations in elastic material webs, such as fiber material webs. In order to establish the contact to the desired extent, the height of the depositing point could be adjustable and / or the means for holding it down itself, which then have to be adjusted in their movement in particular to the height setting of the laying carriage. By exerting a certain pressure during the contacting, not only can the position of the uppermost layer be secured, but also a predeterminable pressing force could be exerted, for example to reduce the volume of the stack and thus bring more material to the packaging. In the

The contacting in question enables the material web to be deposited at higher speeds, in particular at speeds above 200 m / min. The means for holding down could comprise at least one hold-down roller. So that the entire top web of material is caught on both sides of the material web exit from the laying rollers, two hold-down rollers could roll on both sides of the laying carriage on the stacking surface. The pair of hold-down rollers would then be able to be moved in the transverse direction with the laying carriage. In terms of the structural arrangement, the hold-down rollers could extend from face to face of the frame and rotate and move in the transverse direction.

As an alternative to the hold-down rolls, which are only temporarily in contact with smaller sections of the uppermost layer of the material web stack in the case of a smaller roll diameter, at least one separate hold-down belt could be provided as the hold-down means. Two hold-down straps would be conceivable, which extend on both sides of the laying carriage and interact with corresponding holding and tensioning devices. Both hold-down belts could be arranged on either side of the laying carriage or in front of and behind it. The attachment could also take place on the frame in which the laying carriage and the conveyor belts etc. are arranged, or else via rollers. The running direction of the two hold-down belts can be parallel to the laying length in the longitudinal direction or parallel to the laying width in the transverse direction. With regard to the longitudinal and transverse movement beyond the area of a single depositing point, the hold-down belts or the hold-down belt could span the entire area that is predetermined by the frame of the device. A particularly advantageous embodiment only provides a hold-down band which extends at least over the depositing point in the transverse direction and in the longitudinal direction and rotates in the transverse direction. The hold-down belt could be guided over circulating rollers which are arranged on the long sides of the frame, extend in the longitudinal direction and circulate in the transverse direction. So that in the preferred embodiment the material web reaches the depositing point with a single circumferential hold-down belt, this could have a passage opening for the material web that is always arranged synchronously with the position of the laying carriage or with the exit point of the material web from the laying rollers.

Other means of holding down could be in the form of a lamella wall, a guide plate, a profile, all of which exert a more or less large pressing force on the stack over the top layer of the deposited material web. The material web could be fed to the lay-up carriage via a material web feed device upstream of the lay-up rollers, which comprises a rotary storage device which, due to its storage function and the different requirements for material web feed, compensated by the oscillating movement of the lay-up carriage. The fluctuation and change in length of the material web caused by the change of direction during the back-and-forth movement requires different material web feed speeds. In order to implement this, the rotary memory could be positively guided and, for this purpose, comprise a motor which is part of the entire drive system of the device and is therefore synchronized with the position of the laying carriage. The positively guided, synchronous compensation of a turning process by the rotary storage leads to a smooth and even material web feed. The idea of the rotary storage device described above can also be used in depositing processes in which the oscillating movement has little or no significance.

As is known per se from the prior art, the material web could also be transported to the laying rollers in the device according to the invention on a conveyor belt and / or between two conveyor belts and that the speed of the material web is equal to the speed of the conveyor belt or the conveyor belts , In this case, the conveyor belts can form a pressure zone, as a result of which a largely wrinkle-free feeding of the material web between two conveyor belts is achieved, the material web resting on one conveyor belt and being covered by the other. In this way, it is on the one hand impossible for the material web to slip and, on the other hand, that the material web is not contaminated or otherwise exposed to external influences. The equality of the speed of the

Conveyor belt at the speed of the material web transported on the conveyor belt has the advantage that electrostatic effects are largely avoided and the material itself is protected. The reduction in friction is particularly important with regard to the placement of the material web on the previous layer. The two laying rollers or the laying carriage always rolls off the material web so that it does not become one

Deterioration in the position of the previous layer, wrinkling, static charging or even a loss of quality. The use of a laying carriage also has the effect that the top speed The position of the deposited material web and the speed of the material web reaching the top layer as well as the speeds of the layers are equal in amount to one another.

In summary, it is stated that the device according to the invention specifies a handy and light construction for depositing material webs, which increases the production speeds and reduces the manufacturing and energy costs. A stack could be created on a pedestal. In addition, the height adjustability of the laying carriage, the means for holding it down and the compensation of the turning processes by means of a positively driven rotary memory present further embodiments which are essentially enriching for the invention and which are conducive to the achievement of the object of the invention.

There are now various possibilities for advantageously designing and developing the teaching of the present invention. For this purpose, on the one hand, reference is made to the claims subordinate to claim 1, and on the other hand to the following explanation of several exemplary embodiments of the invention with reference to the drawing. Preferred embodiments and further developments of the teaching are explained in general in conjunction with the explanation of the exemplary embodiments of the invention mentioned with reference to the drawing. Show in the drawing

1 in a schematic representation, a perspective view of a first exemplary embodiment of the device according to the invention,

2 in a schematic representation, a front view of a second exemplary embodiment of the device according to the invention with a height-adjustable laying carriage,

3 shows a schematic illustration of a side view of a third exemplary embodiment of the device according to the invention with two storage locations, 4 shows a schematic illustration, a front view of a fourth exemplary embodiment of the device according to the invention with hold-down rollers,

5 in a schematic representation, a top view of the object from FIG. 4,

Fig. 6 in a schematic representation, a front view of a fifth embodiment of the device according to the invention with hold-down strap and

FIG. 7 in a schematic representation, a top view of the object from FIG. 5.

1 to 7 show a device for laying down a flexible material web 1 with at least one counter-rotating pair of laying rollers 2, 3, the material web 1 being able to be fed by means of the laying rollers 2, 3 to at least one laying point 4, the laying rollers 2, 3 are part of a laying carriage 5, which can be moved at least over the laying length L of the material web 1 with reversible orientation.

According to the invention, the laying carriage 5 has a smaller width dimension than the depositing point 4 and can be moved over the depositing width B of the depositing point 4 with a reversible orientation. For this purpose, the laying carriage 5 is part of a frame 6, which is arranged in a frame 7 so that it can be moved across. The frame 7 has on its front sides extending guide rails 8, on which the frame 6 is movably mounted.

While a first exemplary embodiment is shown in FIG. 1, the depositing point 4 being embodied by a lifting table which is adjustable in height and is moved downwards with an increasing stack 9, in FIG. 2 it is not the depositing point 4 but the laying carriage 5 in FIG Height adjustable. For the change in height, vertical guide rails 10 for the frame 6 are arranged on the frame 7, with which the laying carriage 5 can be moved in the vertical position in the appropriate position relative to the fixed storage location 4.

3 shows a third exemplary embodiment, the device according to the invention, with the laying carriage 5 being assigned two depositing points 4. The laying carriage 5 is in This third embodiment can be moved over both laying lengths L and successively supplies one laying point 4 after the other with the material web 1 without a lengthy interruption.

FIGS. 4 to 7 show that, according to a fourth and fifth exemplary embodiment, two types of means for holding down the uppermost material web 1 are provided.

4 and 5, the means for holding down comprise a pair of hold-down rollers 11, 12. The hold-down rollers 11, 12 extend approximately from the end face to the end face of the frame 7 and can be moved in the transverse direction together with the laying carriage 5, the hold-down rollers 11, 12 each protrude significantly beyond the laying width B at the turning point of the laying carriage 5.

A hold-down belt 13 is shown in FIGS. 6 and 7, which runs around circulation rollers 14, 15 in the transverse direction over the entire area of the frame 7. The hold-down belt 13 extends far over the laying length L and the laying width B of the laying point 4 and extends - in each case at the current height of the uppermost layer of the deposited material web 1 or the stack 9 - almost from the end face to the end face of the frame 7.

The hold-down belt 13 has a passage opening (not shown in detail) which is always arranged synchronously with the position of the laying carriage 5 or with the exit point of the material web 1 from the laying rolls 2, 3.

1 and 3 in particular show that the material web 1 can be fed via a material web feed device 16 which is arranged upstream of the laying rollers 2, 3 and which comprises a rotary memory 17. The rotary memory 17 is positively guided and a motor (not shown) is provided, which is part of the entire drive system of the device and is therefore synchronized with the position of the laying carriage 5. In the exercise of its storage function, the rotary memory 17 compensates for the different need for material web 1 as a result of the oscillating movement. 1 and 3 are also particularly meaningful with regard to the conveyor belts 18, which show that the material web can be transported on a conveyor belt 18 up to the travel compensation carriage 19 interacting with the laying carriage 5 and then between two conveyor belts 18 up to the laying rollers 2, 3 , wherein the speed of the material web is equal to the speed of the conveyor belt or the conveyor belts.

3 also shows two motors, which are designated by M. The motor M adjacent to the material web feed 16 drives the conveyor belts 18 and the opposite motor M drives the laying carriage 5.

With regard to further features not shown in the figures, reference is made to the general part of the description.

In conclusion, it should be pointed out that the teaching according to the invention is not restricted to the exemplary embodiments discussed above. Rather, the most varied of embodiments of the overall arrangement, of the individual laying modules, are possible.

LIST OF REFERENCE NUMBERS

1 material web 2 laying roller 3 laying roller 4 laying position 5 laying carriage 6 frame 7 frame 8 crossbars for 6 9 stacks on 4

10 vertical guide rails for 6

11 hold-down roller

12 hold-down belt roller

13 hold-down strap

14 circulation roller

15 circulation roller

16 material web feed device

17 rotary storage

18 conveyor belts

19 travel compensation wagons

L laying length

B spreading width

H height

M engine

Claims

 claims 1. Device for depositing a flexible material web (1) with at least one counter-rotating pair of laying rollers (2, 3), the material web (1) being able to be fed by means of the laying rollers (2, 3) to at least one depositing point (4), the laying rollers (2, 3) are part of a laying carriage (5) which can be moved with reversible orientation at least over the laying length (L) of the material web (1), characterized in that the laying carriage (5) has a smaller width dimension than the laying point (4 ) and at least over the placement width (B) of the placement point (4) with reversible orientation.
2. Device according to claim 1, characterized in that the laying carriage (5) is part of a frame (6) which is arranged to be movable in a frame (7). 3. Device according to claim 1 or 2, characterized in that the laying carriage ( 5) is adjustable in height (H).
4. Device according to one of claims 1 to 3, characterized in that two laying points (4) are assigned to the laying carriage (5).
5. Device according to one of claims 1 to 4, characterized in that means for holding down the uppermost material web (1) are provided.
6. The device according to claim 5, characterized in that the means for holding down are adjustable in height.
7. The device according to claim 5 or 6, characterized in that the means for holding down comprise at least one hold-down roller (11, 12).  <Desc / Clms Page number 13>  
8. The device according to claim 7, characterized in that a pair of hold-down rollers (11, 12) is provided, which can be moved with the laying carriage (5) in the transverse direction, at least over the laying width (B).
9. The device according to claim 5 or 6, characterized in that the means for holding down (7) comprise at least one hold-down band (13).
10. The device according to claim 9, characterized in that the hold-down band (13) extends at least over the placement point (4), preferably runs over the entire area of the frame (7) in the transverse direction.
11. The device according to claim 10, characterized in that the circumferential hold-down belt (13) has a passage opening which is always synchronous with the position of the laying carriage (5) or with the exit point of the material web (1) from the laying rollers (2, 3) is arranged.
12. Device according to one of claims 1 to 11, characterized in that the material web (1) can be fed via a material web feed device (16) upstream of the laying rollers (2, 3), which comprises a rotary memory (17).
13. The device according to claim 12, characterized in that the rotary memory (17) is positively guided and for this purpose comprises a motor which is part of the entire drive system of the device and is thus synchronized with the position of the laying carriage (5).
14. Device according to one of claims 1 to 15, characterized in that the material web (1) on a conveyor belt (18) and / or at least partially between two conveyor belts (18), which in particular form a pressure zone, can be transported to the depositing point (4) and that the speed of the material web (1) is equal to the speed of the conveyor belt (18) or the conveyor belts (18).
EP20040787571 2003-10-18 2004-09-07 Device for laying a flexible material web Expired - Fee Related EP1675796B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2003148529 DE10348529B4 (en) 2003-10-18 2003-10-18 Device for depositing a flexible material web
PCT/IB2004/003827 WO2005037695A2 (en) 2003-10-18 2004-09-07 Device for laying a flexible material web

Publications (2)

Publication Number Publication Date
EP1675796A2 true EP1675796A2 (en) 2006-07-05
EP1675796B1 EP1675796B1 (en) 2008-03-12

Family

ID=34442101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040787571 Expired - Fee Related EP1675796B1 (en) 2003-10-18 2004-09-07 Device for laying a flexible material web

Country Status (9)

Country Link
US (1) US7401771B2 (en)
EP (1) EP1675796B1 (en)
JP (1) JP2007533568A (en)
CN (1) CN100564213C (en)
AT (1) AT388919T (en)
CA (1) CA2543634A1 (en)
DE (2) DE10348529B4 (en)
DK (1) DK1675796T3 (en)
WO (1) WO2005037695A2 (en)

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Also Published As

Publication number Publication date
WO2005037695A3 (en) 2005-06-30
DK1675796T3 (en) 2008-07-14
US7401771B2 (en) 2008-07-22
DE10348529A1 (en) 2005-06-02
CN1871170A (en) 2006-11-29
CA2543634A1 (en) 2005-04-28
DE502004006524D1 (en) 2008-04-24
WO2005037695A2 (en) 2005-04-28
DE10348529B4 (en) 2005-12-08
CN100564213C (en) 2009-12-02
JP2007533568A (en) 2007-11-22
EP1675796B1 (en) 2008-03-12
US20060255523A1 (en) 2006-11-16
AT388919T (en) 2008-03-15

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