EP0352564B1 - Method and apparatus for handling and subsequent treatment of a honeycomb web - Google Patents

Abstract

The invention relates to a method and also an apparatus for handling and subsequent treatment of a continuously produced, unstretched honeycomb web. To facilitate the handling as well as the subsequent treatment of the unstretched honeycomb web, according to the invention the following method steps are provided: a) The honeycomb web is reeled up and is stored intermediately as a reel or is sold as separate merchandise; b) for subsequent treatment, the unstretched honeycomb web is wound off the reel and is stretched into the desired final form; c) the desired part lengths are cut off from the continuous, stretched honeycomb web.

Description

The invention relates to a method for handling and processing an endlessly produced, unstretched honeycomb strip.

The invention further relates to an apparatus for performing this method.

A corresponding system can be found, for example, in US Pat. No. 3,257,253. An endless stretched honeycomb band is produced on this previously known system, which is continuously laminated with an endless layer of paper on its top and bottom during its stretching process.

The document US-A-2 731 379 shows and describes the further processing of the unstretched honeycomb strip with stretching and cutting to the desired partial lengths.

It is also known to supply and process metal and cardboard honeycombs unstretched or stretched in the form of blocks. The known production processes for undrawn honeycombs result in film blocks with a thickness of between approximately 2 cm and 15 cm, from which strips are cut off at the desired honeycomb height as required. These strips are placed in a stretching machine and stretched into a honeycomb. Depending on the film block density and cell diameter, stretched sheets are obtained Honeycombs between 1 and 10 m in length. These stretching machines work in time and have to be designed for the greatest honeycomb length. This requires a very large amount of space. The transport and storage of the stretched honeycombs require a large volume; the handling of the stretched honeycombs is relatively complex. In order to prevent local destruction of the stretched honeycomb by external influences during transport and storage, large-scale intermediate layers must be inserted. Stretched honeycombs offer a large area for corrosion, dust and moisture pollution, which, if stored incorrectly, can lead to a loss of quality or even worthlessness of the expensive material.

The invention has for its object to develop a method and a device that allow easier handling of the honeycomb material, its space and cost-saving storage and transport, a reduction in the risk of contamination and corrosion and processing on compact systems.

• a) Das ungestreckte Wabenband wird aufgehaspelt und als Haspel zwischengelagert oder als separates Handelsgut vertrieben;
• b) zur Weiterverarbeitung wird das ungestreckte Wabenband von der Haspel abgewickelt und in die gewünschte Endform gestreckt;
• c) von dem endlosen, gestreckten Wabenband werden die gewünschten Teillängen abgeschnitten.

This object is achieved according to the invention by the following method steps:

• a) The unstretched honeycomb band is reeled up and temporarily stored as a reel or sold as a separate commercial good;
• b) for further processing, the undrawn honeycomb band is unwound from the reel and stretched into the desired final shape;
• c) the desired partial lengths are cut off from the endless, elongated honeycomb strip.

• a) Eine Haspel zur Aufnahme bzw. Abgabe eines ungestreckten Wabenbandes mit einer Einrichtung gegen das Ausknicken der Wabenlagen;
• b) eine Streckeinrichtung für das Wabenband, bestehend aus einer gegenüber dem Wabenband weitgehend schlupffrei arbeitenden Einzugsvorrichtung, zumindest einer dieser nachgeordneten freien Streckzone, sowie einer dieser nachgeordneten, ebenfalls weitgehend schlupffrei arbeitenden Auszugsvorrichtung;
• c) eine der Streckeinrichtung nachgeordnete Ablängvorrichtung.

In terms of the device, the object on which the invention is based is achieved by the following features:

• a) a reel for receiving or dispensing an unstretched honeycomb band with a device against buckling of the honeycomb layers;
• b) a stretching device for the honeycomb belt, consisting of a pull-in device that works largely slip-free with respect to the honeycomb belt, at least one free stretch zone arranged downstream thereof, and a pull-out device that is arranged downstream of this and also largely slip-free;
• c) a cutting device arranged downstream of the stretching device.

Features of the subclaims are explained in more detail in connection with the advantages of the invention using exemplary embodiments.

The solution according to the invention enables endless production of the honeycombs. The storage and transport volume for undrawn honeycombs is reduced. The honeycomb can be stretched in a continuous process. The length of the honeycomb can be chosen according to its length. This enables waste optimization.

Figur 1

in Seitenansicht eine Haspel mit einer Einrichtung gegen das Ausbrechen der Wabenlagen;

Figur 2

eine abgewandelte Ausführungsform in einer Darstellung gemäß Figur 1;

Figur 3

eine abgewandelt Ausführungsform in einer Darstellung gemäß Figur 1;

Figure 4

vier verschiedene Ausführungsformen für eine aus Walzen- oder Förderband-Paaren bestehende Streckeinrichtung, jeweils in Seitenansicht;

Figur 5

eine abgewandelt Ausführungsform in einer Darstellung gemäß Figur 4;

Figure 6

in vergrößertem Maßstab eine Streckeinrichtung gemäß Figur a);

Figur 7

die Darstellung gemäß Figur 6 in Draufsicht;

Figur 8

eine mehrstufige Streckeinrichtung in einer Darstellung gemäß Figur 4;

Figur 9

in Draufsicht die Streckung eines Wabenbandes in den einzelnen Stufen einer Streckeinrichtung gemäß Figur 8;

Figur 10

in Seitenansicht eine Ablängvorrichtung;

Figur 11

eine abgewandelt Ausführungsform in einer Darstellung gemäß Figur 10;

Figur 12

eine von zwei Haspeln arbeitende Verarbeitungsanlage in Seitenansicht;

Figur 13

die Anlage gemäß Figur 12 in Draufsicht;

Figur 14

die rechte Hälfte einer Haspel in Seitenansicht;

Figur 15

einen Querschnitt gemäß der Linie II - II in Figur 14;

Figur 16

einen Längsschnitt durch die rechte Hälfte einer Haspel in abgewandelter Ausführungsform mit aufgewickeltem Haspelgut;

Figur 17

in verkleinertem Maßstab in Stirnansicht eine verpackte Haspel;

Figur 18

eine abgewandelt Ausführungsform in einer Darstellung gemäß Figur 17;

Figur 19

eine abgewandelt Ausführungsform in einer Darstellung gemäß den Figuren 17 und 18;

Figur 20

einen Längsschnitt durch den linken Abschnitt einer Haspel in abgewandelter Ausführungsform;

Figur 21

übereinander gestapelte Haspel in einer Darstellung gemäß den Figuren 17 bis 19 und

Figur 22

eine abgewandelte Ausführungsform in einer Darstellung gemäß Figur 21.

Some exemplary embodiments of the invention are shown schematically in the drawing. Show it:

Figure 1

in side view a reel with a device against breaking out of the honeycomb layers;

Figure 2

a modified embodiment in a representation according to Figure 1;

Figure 3

a modified embodiment in a representation according to Figure 1;

Figure 4

four different embodiments for a stretching device consisting of pairs of rollers or conveyor belts, each in side view;

Figure 5

a modified embodiment in a representation according to Figure 4;

Figure 6

on an enlarged scale a stretching device according to Figure a);

Figure 7

the representation according to Figure 6 in plan view;

Figure 8

a multi-stage stretching device in a representation according to Figure 4;

Figure 9

in plan view the stretching of a honeycomb band in the individual stages of a stretching device according to FIG. 8;

Figure 10

in side view a cutting device;

Figure 11

a modified embodiment in a representation according to Figure 10;

Figure 12

a processing plant working from two reels in side view;

Figure 13

the system of Figure 12 in plan view;

Figure 14

the right half of a reel in side view;

Figure 15

a cross section along the line II - II in Figure 14;

Figure 16

a longitudinal section through the right half of a reel in a modified embodiment with coiled goods;

Figure 17

on a smaller scale in front view a packaged reel;

Figure 18

a modified embodiment in a representation according to Figure 17;

Figure 19

a modified embodiment in a representation according to Figures 17 and 18;

Figure 20

a longitudinal section through the left portion of a reel in a modified embodiment;

Figure 21

Reel stacked one above the other in a representation according to FIGS. 17 to 19 and

Figure 22

a modified embodiment in a representation according to Figure 21.

FIG. 1 shows a reel 1 with a reel shaft 2 and a sleeve 3 attached to it, onto which an undrawn honeycomb band 4 is wrapped. In order to prevent the honeycomb layers from buckling, a thin belt 5, a band, a film, a paper strip or the like is used when winding the honeycomb band 4 together with it. with wound up or wrapped tightly against the outside of the honeycomb band 4 (in Figure 1 against the bottom of the honeycomb band 4). The belt 5 or the like. is unwound from a belt reel 6, which is preferably braked so that the undrawn honeycomb band 4 can be pressed tightly onto the reel 1. In this case, there is no need for the reel 1 to be mounted in a manner that adapts to the changing reel circumference.

During winding, it is advantageous if the honeycomb band 4 is pushed.

The later processing of the unstretched honeycomb band 4 can take place directly from the reel 1 according to FIG. 1. The unwinding drive can be carried out via the belt 5, which is guided over a deflection roller 7 and wound onto the belt reel 6 at a slightly premature speed (compared to the retraction speed of the honeycomb belt 4 in a stretching device explained later). The retraction device of the stretching device, which will be explained in more detail later, has a braking effect with respect to the belt reel 6, so that the belt 5 or the like. remains taut and supports the honeycomb belt 4 on the entire circumference of the reel 1 and prevents it from buckling. If the reel 1 is empty, the belt or the like. either rolled up again on reel 1 (reusable belt firmly connected to reel 1), or belt 5 or the like. is removed from the empty reel 1 and replaced with a new belt by the belt reel 6 when it is loaded again.

In the embodiment according to FIG. 2, the device against buckling of the honeycomb layers consists of a stationary sheet metal or webbing 8, which is guided around a deflection 9 is, the already coiled honeycomb belt 4 wraps around and is kept taut over a weight 10. The respective outer jacket of the wound honeycomb strip 4 slides along this stationary support, a pushed honeycomb strip 4 and a driven reel bearing for its winding being advantageous. Furthermore, it is expedient to design the reel storage to be adjustable in height.

The embodiment of a reel shown in FIG. 3 also has a device to prevent the honeycomb layers from buckling. In accordance with the solution according to FIG. 2, this device comprises a sheet metal or belt strap 8 which is loaded by a weight 10, but which has only a smaller wrap angle than the wound honeycomb strap 4. A further wrap is formed here by a conveyor support belt 11, the upper deflection roller 12 of which is adjustably mounted (see dashed line), so that the conveyor support belt 11 can adapt to the increasing or decreasing extent of the wound honeycomb belt 4 as well as the sheet metal or belt belt 8 The conveyor support belt 11 can also form the drive for the winding or unwinding process.

FIG. 4 shows four alternative solutions for a stretching device 13 arranged downstream of the reel 1, in which the undrawn honeycomb band 4 unwound from the reel 1 is stretched in the longitudinal direction (arrow 14) into the desired honeycomb structure (see FIGS. 7 and 9). Each of the alternative solutions shown in FIGS. 4 and 5 has a drawing-in device 15, a free stretching zone a arranged downstream thereof and a drawing-out device 16 arranged downstream of this.

In the alternative solutions according to FIG. 4, the pull-in device 15 and / or pull-out device 16 each consist of a pair of rollers or conveyor belts, the pull-in device 15 at the pull-in speed v1 and the pull-out device 16 operate at the extension speed v2, where v1 <v2.

FIGS. 3 and 4 clearly show the mode of operation of the stretching device 13 according to FIG. 4a. The undrawn honeycomb belt 4 is conveyed by the counter-rotating rollers of the drawing-in device 15 into the stretching zone a, from which the honeycomb belt is drawn off accelerated by the rollers of the pull-out device 16 running in opposite directions with a higher number of revolutions. On the one hand, the honeycomb belt is stretched in its conveying direction, the stretching result shown in FIG. 7 showing a normal symmetrical honeycomb structure. At the same time as the longitudinal stretching, the width of the undrawn honeycomb band 4 is reduced (in the exemplary embodiment shown in FIG. 7 by approximately 30%). This change in width must be made possible during the stretching process without transverse pull, in order to avoid stressing the local bonds and the thin film strips of the honeycomb band. Depending on the cell diameter, geometry and desired stretching result of the honeycomb structure, the ratio of v2 to v1 is chosen higher or lower, this speed ratio corresponding to the ratio of the diameter of the elongated honeycomb cell to the diameter of the undrawn honeycomb cell. It is gentle on the material if the rollers or conveyor belts of the pull-in device 15 and pull-out device 16 work without slippage, that is to say do not allow any speed differences between the peripheral speed and the honeycomb belt. This reduces the risk of destruction for the honeycomb structure (especially in the case of very thin and soft materials); the wear on the roller or belt surfaces and their contamination by abrasion residues are reduced. This is important for honeycomb strips made of aluminum foil, since aluminum tends to smear when rubbed.

The surfaces of the pull-in or pull-out devices 15, 16 can, for example, be rubberized.

FIG. 5 shows four alternative solutions for the stretching device 13 which are less expensive than those of FIG. 4, but which are less precisely controllable in automatic operation and, depending on the geometry and material of the honeycomb material, can damage or deform it undesirably. In these alternative solutions, the pull-in devices 15 and pull-out devices 16 each consist of only one roller 17 or only one conveyor belt 18 and an associated sliding plate 19 supporting the honeycomb belt.

For processing different honeycomb heights or honeycomb band thicknesses, it is advantageous if the gap height can be changed in the pull-in or pull-out area.

The stretching device 13 shown in FIG. 8 is constructed in several stages, the stretching zone a being subdivided into sub-regions a3, a2 and a1 by additional pairs of rollers (which could also be replaced by pairs of conveyor belts) with correspondingly adjustable speeds. This results in an increased controllability of the stretching result and the possibility of producing overstretched honeycomb structures in a manner that is gentle on the material, while adapting the respective speed ratios to the desired stretching geometry, for which FIG. 9 shows three examples. However, normally stretched honeycomb structures can also be produced on such a multi-stage stretching device, but with higher precision with regard to cell diameter and geometry. Furthermore, such a system is suitable for stretching honeycomb strips, which are made of relatively thick and hard materials, since the forces required for the deformation (expansion) are applied in stages by train, which must be transmitted from the local adhesive points.

FIG. 10 shows a cutting device 21 arranged downstream of the stretching device 13, each of which has a cutting element 22 on both sides has a hold-down bar 24 which extends over the entire honeycomb width and can be lowered onto the elongated honeycomb band 23. The cutting element 22 can be formed by a rotating knife disc, but also by a sharp knife blade, wherein the separating cut with a blade can be advantageous because of the chip formation avoided here and the contamination associated with it. The hold-down strips 24 prevent a change in the honeycomb structure during the separating cut running transversely to the stretching direction. After the hold-down strips 24 have been released, the honeycomb structure which has been cut to length is ejected through the elongated honeycomb band 23 which follows from the stretching device 13.

The cutting device 21 enables optimal use of the expensive honeycomb material and enables the consumer to process the honeycombs in a way that is optimized for waste.

In order to achieve a continuous processing process of the stretched honeycomb belt 23, a buffer section X is provided between the pull-out device 16 of the stretching device 13 and the stationary cutting device 21, within which the stretched honeycomb belt 23 is compressed in its elastic deformation area during the cutting process. If the overall length of the system is to be shortened by eliminating the buffer section X, the system would have to be operated intermittently.

The cutting device 21 shown in FIG. 11 is designed to run with respect to the elongated honeycomb band, for which purpose a band 25 running back and forth is provided.

In the production of sandwich elements with a honeycomb intermediate layer, it may be necessary to produce elements with a width or length that is larger than the starting honeycomb material. When assembling honeycomb sections, it should be noted that the honeycomb structure, due to its structure, extends or extends transversely has different strength properties that can also be determined in the finished sandwich element. It can therefore optionally be provided to determine the later element width or the later element length by the first cutting device 21 arranged downstream of the stretching device 13, in order to then determine the later element length or element width by means of a second cutting device.

FIGS. 12 and 13 show one possibility for working two reels 1. This arrangement allows the loading of a panel system working in an endless process. FIG. 13 shows that only a partial width of the undrawn honeycomb strip 4 is processed by the lower reel 1, which is made possible by a cutting device 26. As a result, it is possible to produce panels which are too wide, as seen from the honeycomb base material, and the waste of the expensive honeycomb material can be minimized. Otherwise, the system shown consists of two reels 1 with an unwinding device according to FIG. 1 formed by belt reel 6 and belt 5, two simple stretching devices 13 according to FIG. 6 and a device (not shown in more detail) for bringing together the two elongated honeycomb belts 23 to form an excess width compared to the original width of the undrawn honeycomb band 4. The cutting device 26 for longitudinally separating the undrawn honeycomb band 4 on the reel 1 can be designed as a movable band saw. The separated additional width is unwound, while the remaining width remains on the reel.

The reel according to FIG. 14 is composed of a shaft 2, a reel core sleeve 3 pushed onto it, an outer contour 27 pushed onto it, and two end disks 28 inserted laterally onto the shaft 2, the outer diameter of which is larger than the outer diameter of the one in FIG. 14 shown full reel. Each face plate 28 is at least over an axially directed driver 29 with the reel core sleeve 3 in rotary connection. This driver 29 can sit on the end plate 28 and be designed in the form of inwardly directed, preferably sharp-edged projections (teeth, teeth, corrugation or the like), which engage in the end face of the reel core sleeve 3 and thus produce the so-called rotary connection.

The end disks 28 are pushed onto the shaft 2 laterally and in the desired position via clamping screws 30, clamping sleeves or the like. locked. The wood, sheet metal, plastic or the like. existing end disks 28 serve, among other things. for lateral guidance of the honeycomb belt 4 (see FIG. 16) when winding up, for protecting the wound honeycomb belt 4 and as a support for transporting and handling the reel 1.

The shaft 2 can be used as a tension shaft, pipe or the like. be trained.

The reel core sleeve 3 consists of inexpensive, stable, but easily separable material and is e.g. formed by a tube wound from kraft paper similar to a carpet, paper or fabric roll core.

According to FIG. 15, the outer contour 27 has a diameter offset a, the radial height of which corresponds to the honeycomb height of the honeycomb strip 4 to be wound up. This outer contour 27 can be plugged or pushed onto the reel core sleeve 3, so that the same standard core sleeve can be used for all applications, while only the outer contour 27 to be pushed on has to be adapted to the honeycomb thickness or height to be processed. The outer contour 27 can also consist of sections pushed onto the reel core sleeve 3. The outer contour 27 can, however, also be firmly connected to the reel core sleeve 3, so that reel core sleeves which are appropriately adapted for different honeycomb strengths or heights 3 must be used. The reel core sleeve 3 can be made directly with a corresponding outer contour 27, or the outer contour 27 can be cast onto the reel core sleeve 3, foamed or molded on in some other way. The outer contour 27 could also consist of a wedge-shaped flexible material in cross section, such as rubber, which by gluing, stapling, shrinking or the like. is attached to the circumference of the reel core sleeve 3.

In any case, the outer contour 27, like the reel core sleeve 3, is made of easily separable material. This makes it possible to divide the honeycomb strip into two widths by longitudinal cutting when unwinding the honeycomb strip 4 from the reel and at the same time to cut through the outer contour 27 with the reel core sleeve 3 in order to remove the remaining width of the honeycomb strip separated by this separating cut on a correspondingly narrower reel intermediate storage. It is advantageous if the complex reel according to FIGS. 14 and 15 for storage and / or transport and for further processing of the unstretched honeycomb band 4 from the reel 1 is designed as follows:
After winding and securing the undrawn honeycomb band 4, the end disks 28 are pulled off and the relatively expensive shaft 2 is pulled out of the reel core sleeve 3. Instead, bearing and transport end disks 31 are used, which according to FIG. 16 are each stretched into the reel core sleeve 3 with an axially inwardly directed centering pin 32, the outer diameter of which corresponds to that of the shaft 2. 20, this centering pin 32 can also be designed as a bearing 33. These two mounted bearing and transport end disks 31 are secured by means of a threaded rod 34 which is centered through the reel core sleeve 3 and by means of clamping nuts 35 screwed thereon. Also with the warehouse and Transport end disks 31, the outer diameter is larger than that of the full reel material, as shown in Figure 16.

Figures 17 to 19 show three possible packaging variants. The reel according to FIG. 17 is provided with circular end disks 28, 31, while in the alternative according to FIG. 18 the reel is packaged without end disks. 19 and 21, square bearing and transport end disks 31 are provided. In particular with this square design, the bearing and transport end disks 31 can also form part of the transport packaging at the same time. There is also the option of reeling the reels without any additional aids such as Frames, cantilever arms or the like to stack and thus achieve further space and cost savings in storage. In this case, at least one edge section 36 of the bearing and transport end disk 31 can have a channel 37 which is open to the outside and at least one other edge section 38 can have a cross-sectional contour corresponding to the channel 37 (see lower illustration in FIG. 20). This enables different reels to be stacked one on top of the other with a flush interlocking of the overlying edge sections 36, 38. Instead of a corresponding design of the edge sections 36, 38, an intermediate layer 39 in the form of a double-T profile can also be used (see the upper illustration in FIG. 20).

The arrangement shown in FIG. 21 makes it possible to further process the required honeycomb belt 4 from one or the other reel as required. This solution saves the end user further changeover times, which is very cost-effective, especially when executing small orders. In the solution according to FIG. 21, bearings 33 according to FIG. 20 are used for the bearing and transport end disks 31.

In the embodiment according to FIG. 22, circular bearing and transport end disks 31 are used, which make it possible, when the honeycomb band 4 is unwound for further processing, to unroll on the outer circumference of the end disks 28 or bearing and transport end disks 31 from two shafts or instead of a central reel bearing Provide pairs of bearings 40. This also leads to cost-effective handling and set-up times.

With a central storage of the reel, the unwinding of the honeycomb band 4 can take place with or without end disks 28, 31.

In a modified embodiment, there is also the possibility of dividing the reel shaft 2 into at least two partial lengths in order to create a possibility of dividing the honeycomb band into two widths by longitudinal cutting when the honeycomb band 4 is unwound from the reel 1, the longitudinal section with the Joint between the two partial lengths of the reel shaft 2 is aligned. The remaining width of the honeycomb band 4 separated by this longitudinal section can then be temporarily stored on a correspondingly narrower reel without rewinding.

Since the unstretched honeycomb band 4 can be divided into two widths by slitting in the reel 1, it is possible to unwind and process either only one section or both sections.

Claims (34)

1. Process for handling and further processing an endless, unstretched honeycomb web (4), having the following process steps:

   a) the unstretched honeycomb web (4) is wound into a reel and is temporarily stored as a reel (1) or is sold as a separate commodity;

   b) for further processing, the unstretched honeycomb web (4) is unwound from the reel (1) and stretched to the desired final shape;

   c) the desired length sections are cut off the endless, stretched honeycomb web (23).
2. Process according to Claim 1, characterized in that the honeycomb web (4) is advanced continuously for winding into a reel.
3. Process according to Claim 1 or 2, characterized in that during winding into a reel at least one portion of the respective outer periphery of the reel (1) which forms is supported.
4. Process according to Claim 3, characterized in that during winding into a reel thin belts (5) or the like are also drawn in.
5. Process according to Claim 4, characterized in that the reel (1) is decelerated at said belts (5) or the like during winding into a reel and is driven during unwinding.
6. Process according to one of the preceding claims, characterized in that during winding into a reel the height of the reel (1) is regulated in dependence on its increasing diameter.
7. Process according to one of the preceding claims, characterized in that the honeycomb web (4) is conveyed continuously into a stretching zone (a) at a speed v1 and is conveyed out of this stretching zone (a) at a speed v2, where v1 < v2, and stretching takes place within the stretching zone (a) substantially without transverse tension.
8. Process according to one of the preceding claims, characterized in that during unwinding the unstretched honeycomb web (4) is divided into two widths by longitudinally cutting within the reel (1).
9. Process according to Claim 8, characterized in that stretched honeycombs of any width are assembled from width sections.
10. Apparatus for carrying out the process according to one of the preceding claims, having the features:

    a) a reel (1) for receiving or delivering an unstretched honeycomb web (4), having a means (5, 6, 7; 8, 9, 10; 11, 12) for preventing the honeycomb layers from collapsing;

    b) a stretching means (13) for the honeycomb web (4), comprising a draw-in apparatus (15) which operates in substantially slip-free manner with respect to the honeycomb web, at least one free stretching zone (a) arranged downstream of the draw-in apparatus (15), and a draw-out apparatus (16) arranged downstream of the stretching zone (a) and also operating in substantially slip-free manner;

    c) a length-cutting apparatus (21) arranged downstream of the stretching means (13).
11. Apparatus according to Claim 10, characterized in that the means preventing the honeycomb layers from collapsing has a belt roll (6) or the like from which there is also drawn in during winding on of the honeycomb belt (4) and together therewith a thin belt (5) or the like bearing against the outer side of the honeycomb belt (4). (Figure 1)
12. Apparatus according to Claim 11, characterized in that said belt roll (6) or the like is acted upon by a brake during winding on of the honeycomb web (4) and is acted upon by a drive during unwinding.
13. Apparatus according to Claim 10, characterized in that the means preventing the honeycomb layers from collapsing has a sheet-metal or belt band (8) which is arranged to be stationary and is acted upon by a weight or by a spring and along which the honeycomb web (4) is guided in sliding manner. (Figure 2)
14. Apparatus according to one of Claims 10 to 13, characterized by at least one driven conveyor support band (11) which bears against part of the periphery of the reel and which adapts to the changing periphery of the reel. (Figure 3)
15. Apparatus according to one of Claims 10 to 14, characterized in that the draw-in apparatus (15) and/or draw-out apparatus (16) of the stretching means (13) comprise a pair of rollers or a pair of conveyor belts. (Figures 4 and 6)
16. Apparatus according to one of Claims 10 to 14, characterized in that the draw-in apparatus (15) and/or draw-out apparatus (16) of the stretching means (13) comprises a roller (17) or a conveyor belt (18) and a respectively associated sliding metal sheet (19) supporting the honeycomb web. (Figure 5)
17. Apparatus according to one of Claims 10 to 16, characterized by a multi-stage construction of the stretching means (13). (Figure 8)
18. Apparatus according to one of Claims 10 to 17, characterized in that, for processing different honeycomb heights or honeycomb web thicknesses, the gap height in the draw-in or draw-out region is variable.
19. Apparatus according to one of Claims 10 to 18, characterized by an unwinding drive for the reel (1), coupled to the stretching means (13).
20. Apparatus according to one of Claims 10 to 19, characterized in that the length-cutting apparatus (21) has on either side of a cutting element (22) a respective hold-down strip (24) which extends over the entire width of the honeycomb and which can be lowered onto the stretched honeycomb web (23). (Figures 10 + 11)
21. Apparatus according to one of Claims 10 to 20, characterized in that the length-cutting apparatus (21) is constructed to run with the honeycomb web (23) which emerges continuously from the draw-out apparatus (16) of the stretching means (13), over a certain operating distance. (Figure 11)
22. Apparatus according to one of Claims 10 to 21, characterized by a reel (1), comprising a shaft (2), a reel core tube (3) pushed onto the latter and having an external contour (27) which is spiral in cross-section, and end discs (28) which are pushed laterally onto the shaft (2) and whereof the external diameter is larger than the external diameter of the full reel of material which comprises the unstretched honeycomb web (4) wound on between the end discs (28), the spiral external contour (27) having a diameter offset (a) whereof the radial height corresponds to the honeycomb height of the wound-on honeycomb web (4).
23. Apparatus according to Claim 22, characterized in that at least one end disc (28) is displaceable on the shaft (2) in the axial direction and can be locked in the desired axial position.
24. Apparatus according to Claim 22 or 23, characterized in that the reel core tube (3) is of a stable but easily severable material.
25. Apparatus according to one of Claims 22 to 24, characterized in that the spiral external contour (27) is fixedly connected to the reel core tube (3).
26. Apparatus according to one of Claims 22 to 24, characterized in that the spiral external contour (27) is pushed onto the reel core tube (3) as a separate component.
27. Apparatus according to one of Claims 22 to 26, characterized in that the end discs (28) are in rotary connection with the reel core tube (3) by way of in each case at least one axially directed entrainer (29).
28. Apparatus according to one of Claims 22 to 27, characterized in that the shaft (2) can be withdrawn.
29. Apparatus according to one of Claims 22 to 28, characterized in that the end discs (28) can be exchanged for storage and transportation end discs (31).
30. Apparatus according to Claim 28 and 29, characterized in that the storage and transportation end disc (31) has an axially inwardly directed centring peg (32) whereof the external diameter corresponds to that of the shaft (2).
31. Apparatus according to Claim 30, characterized in that the centring peg (32) is constructed as a bearing (33).
32. Apparatus according to Claim 29, 30 or 31, characterized in that the pushed-on storage and transportation discs (31) are secured by way of a threaded rod (34) or the like which is pushed centrally through the reel core tube (3).
33. Apparatus according to one of Claims 29 to 32, characterized in that the external contour of the storage and transportation end discs (31) is formed by a symmetrical polygon, preferably by a square.
34. Apparatus according to Claim 33, characterized in that at least one marginal portion (36) of the storage and transportation end disc (31) has an outwardly open channel (37) and at least one other marginal portion (38) has a cross-sectional contour corresponding to the channel (37).

Images