DE1800685A1 - Machine for unrolling, measuring, cutting and rewinding webs of material - Google Patents

Description

HELMUT SCHROETER

DIPL.-PHYS. ι ι. ι .... I

β MÖNCHEN 25 ■ L1POWSKYSTR. IO 6 / ll / K

3. ίο. 1

Georg Schwab cane mat factory, Oettingen / Bavaria Machine for unrolling, measuring, cutting and rewinding

by v.arenbahnen.

The present invention relates to a "iac oh ine sub rolling, measuring, cutting and Wit deraufrollen of material webs, in particular of floor coverings" the mounted in a holder in rolls with horizontal axis Video-

Eb a device sun unrolling, measuring, cutting and rewinding of webs of material is already known, in which the web of material is pulled off the drum by a first electrically driven pair of fcalaen, then overflows a measuring orphan and is then rolled up again by a further pair of rollers A in of its length by the Meßwaise from ·· gemeosener Bahnabachnitt can aodann at fixed ttalaen between the first and «« ground wide Valzenpaar cut with Handechneidemaschine * the entire device is' disposed on four Leokrollen so dal si · s, the unwound fabric roll htrentefahreo be kai " ·

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An oolche confessed institution «travels however differently® Disadvantages on. So are their service, jsumindeet for goods webs with a greater width ale two meters, aindeetens two people are required, as it is quite difficult to feed such wide webs evenly into the device and to roll up the unwinding section without tilting or warping. " Likewise, it is often considered to be detrimental felt that the winding up of the unrolled and unrolled

The web of material to be cut is fed through awei rollers.

Venn is ®S only possible to wind up relatively thin rolls, so that the usability of the device, a limit is so far set by this type of winding, ale all and any sizes and lengths of webs are separated * Also sin eventual Itarickeln of! © Ilen "ZoBo during the inventory" is not appropriate with the known device. Furthermore, it has often been found to be disadvantageous that with such a device only cross-sections, i.e., cuts parallel to the longitudinal axis of the

* Rolling roll of goods can be performed, while ββ is also required in many cases. Cuts along the length of the web, ie at a right angle ©! zn the itageaehee of the roll of goods. It may also happen that the goods roll from which the web to be cut off is handled ₉ vertutet dureh transportation or ready for winding. Is "orden. This has the consequence _f ü & Q the web Eicht more is being passed through the device ,, which may result dasu that ei.i sectional oblique ausgefütet

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The invention is now © in®

Measuring, cutting and re-rolling of material webs, in particular floor coverings, which are in a holder of rolls with mounted on the horizontal axis, indicated in the case of the above The mentioned tile parts are eliminated. A sdbhe according to the invention The machine is characterized by the fact that the machine has two pairs of conveyor rollers, between which the web of material is located is guided along and of those the first pair of rollers arranged at the inlet end of the machine with a slightly lower one Speed can be driven than that arranged further in the "conveying direction" second pair of rollers, 3aß a cutting device with motor-driven knife is arranged between the two pairs of rollers in a motor-driven manner, such that the knife is guided in a roller-parallel groove, and that on the second pair of rollers for re-rolling the web two roller tracks with in the same direction ant:? machinable hells that follow one another form an angle that is open to the top »

Such an arrangement has the advantage that the in the Machine fed web is kept constantly under a certain tension between the two pairs of rollers, so that the cutting of a certain length of the path can be carried out much more precisely and safely;: it can also be done the cut takes place automatically, since both the knife and the device for moving the knife are motorized are driven «The guide groove enables the knife to be guided very precisely at the same time Winding up the web to be cut means Ebeneo

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no more difficulty. The separated off Bahnabechnitt is that this would require an intervention by the Bedienungeperson without "- performed in the Belden Kollbahnen if it has passiart the second pair of rolls and wraps automatically aufc Ee can so Bah labschnitte be rolled up of any length and thickness and cut.

You training of the rollers is preferably done so that the Rollers of each PÖrderwalzenpaaree pressed together resiliently are, and that each one (especially manually operated) Lever device for lifting off one roller of each pair provided by the other. This, especially in the case of thicker webs, makes it easier to insert the web of material into the machine and, if necessary, to align it more quickly the inclined due to a tarnishing of the roll of goods Material web enabled o

A really functional design of the erf * ndungsgemäßen machine results further characterized in that a taxiway ibt arranged substantially vertically, that the angle pointed between the two runways, aboratory greater than 45 °, and that at least the rollers of the lower run of the re-rolled to the addition, feeding The web of material is in the same direction, but can be driven in the opposite direction to the rewinding. Additional advantages can also result from the fact that the rollers of the roller conveyors are supported in legs

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are that can be pivoted against each other and against the machine frame. This allows the legs to be adjusted each time according to the desired type in a position such that the web to be rolled up is either wound up in the same sense is woken up as it was already, or that it is waved up in the opposite direction.

The machine according to the invention can be used just as easily Use longitudinal cutting of a tree of goods if at least one Cutting device is provided, the motor-driven knife at right angles to the rollers and in a guide is arranged adjustable parallel to the roller axes o Such a longitudinal cut can be carried out in this case be that once brought into ee: me the desired position The knife remains in this position during the cutting process and only the web of material is guided past the knife will ο

The automatic operating sequence of the machine according to the invention can also be improved by the fact that in per se known Way, a follower wheel connected to a counter is provided so that it can be pressed against the material web, the counter being used for preselection a certain track length has a correspondingly adjustable switching contact (advance counter). the one in the feed circuit of the drive provided for the conveyor rollers is »

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The introduction of the material web into the machine can only be be carried out by an operator, if on the machine additionally in the conveying direction in front of the first pair of rollers an infeed guide plate for the material web extending over the entire width of the roll is arranged,

Finally, a cross-running of the Viarenbahn due to a tarnishing of the roll of goods can be easily compensated for by designing the machine so that all of the machine's facilities for inserting, unrolling, measuring, cutting and rewinding the webs of goods are parallel as a unit _Q are arranged displaceably to the long axis of the roll of goods to be unwound on an underframe

In the following, the invention will be described in more detail with reference to in the drawing » Example illustrated preferred embodiments explained be = in the drawing shows:

Fig. 1 is a Seitenanaich '; an embodiment of the invention Machine,

Fig. 2 is a front view of the machine shown in Fig. 1, wherein the cross cutting knife is not shown «and

FIG. 3 is a schematic side view of that shown in FIG Embodiment, wherein the Walzenbahi.en in another Position are pivoted "

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In Pig. 1 iet with a denotes a roll of goods from which the web to be separated is unwound in the direction of the arrow. the Roles can be in paternoster or support frames that can be part of the present machine, but need not be, you are from it Reason not shown in the drawing.

The web a'j leaving the roll of goods meets the guide baffle b, which is in front of the web in the conveying direction a first pair of rollers c is arranged such that the on V / a ren track adjacent to the guide β guide plate inevitably see the rollers of this first roller pair is introduced ο The axis of the upper roller of this first roller pair is at the end c. mounted on a lever r The lever r is around the axis Cg pivotable »so that the upper of the two rollers c can be lifted off the lower roller by the fact that the free end of the Lever r is moved to the left.

In the conveying direction of the material web, a second pair of rollers e is then arranged behind the first V-roller pair c, through which the material web is guided o This second roller pair can preferably be driven at a higher peripheral speed than the first v.alzenpaar _p so that the material web passed through the two roller pairs under a steady

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Tension stands, "For the processing of particularly thick material webs, it can also be expedient to use each roller of the" to provide the roller pairs with their own drive.

Between the two pairs of rollers c and e, the web of material is passed over a table d |, which is expediently arranged horizontally out, which should be so large in size that _t the surface of the material web "in particular" the decoration of the goods, is clearly visible and can therefore be subjected to an examination-

On the axis e .. (see Pig »3) of the lower roller of the roller pair e two legs a ″ are articulated so as to be pivotable. In these Legs Sp are each the ends of the axes of rollers f stored which are arranged parallel to each other, so that there is a first roller conveyor. At the free ends of the legs

S ₂ aind each two further legs S ₁ articulated verachwenkbar,

^v This handle S ₁ is also used to store the axle ends of further rollers f, which are also arranged parallel to one another and parallel to the rollers of the first roller conveyor ο the legs S ₁ form a second roller conveyor with the rollers f stored in them «

The two roller conveyors can be swiveled against each other * that they have an acute angle, as in Pig. 1 can be seen is, or an obtuse angle, as can be seen in FIG

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let, form between calibration upwards. If both roller conveyors are pivoted against each other so far that they form an angle of 180 ° with each other, as ee in Pig, 3 in dashed lines Lines is shown, eo the two roller conveyors form a single roller conveyor without transition. The individual roles Each roller conveyor can be driven both clockwise and counterclockwise. Here, the circumferential speed of the individual rollers can be the same or greater than the peripheral speed of the rollers of the second orphan pair e »Since the drive of the two roller pairs c and e expediently by a high level or stufenloeen Drive takes place »a multi-stage or stepless one is also expedient for the rollers of these two roller conveyors Drive provided.

Between the first and the second pair of rollers c or «e is a motor-driven knife i is arranged above the table d. The sons or the teeth of the knife k are sufficient over the upper edge of the table d and into a groove g made in this table »This groove runs over the entire width of the table transversely to the conveying direction and forms a guide for the knife edge k * The knife i is two times on a towing device such as a Attached to a chain or rope, with the help of which the knife, that can be pushed onto another device, such as a rod

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is supported by a drive device on the bar The entire width of the web can be guided »The shifting of the running knife over the web can of course also be done by hand. However, it will be a automatic guidance of the knife related, ao the control of the drive is expediently made ao that the Knife automatically over the entire cross web or only part of it

ρ this pathway runs and then automatically 'again in his Returns to the starting position at the edge of the table. It is also quite useful to have a lock for movement of the knife to be installed across the web as long as one of the rollers of the two pairs of rollers c and e is still in motion. This will ensures that a cut can only be made » when the path to be cut is stationary. This will be best achieved in that a device or circuit is provided which causes the drive for the displacement

. of the knife i cannot be operated before the drive for the «Alaenpaare c, e is not switched off«

At the same time, one or more knives ρ can also be provided for cutting the material web in its longitudinal direction will. Two such knives can be seen from Pig can also be arranged displaceably transversely to the web of material on any holder. Your classification in relation to on the »goods train is made by hand by moving along their mounting device are performed. The knives are

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also here motor-driven, and the knife edge or SMge is, as from Flg. 1 can be seen, in the longitudinal direction of the material web, a cut is then carried out in that the material web runs past the Nesser ρ, which is fixed in its position once it has been set

However, since the case may arise that the material web is not guided precisely in the longitudinal direction through the device, so that the knives would not perform precise ParaHeHängβschnitte with respect to the outer edge of the material web, devices are attached in the embodiment described, which guide the Allow knives parallel to the outer edge of a material web during the cutting process. For this purpose, rotatably arranged pulleys q ^, q ₂ or the like are arranged below the table surface d in the edge parts of the table, over which an endless rope or a chain q runs "On one side of this rope or chain hoist are the knives * ρ according to your exact setting in relation to the distance to the outer edge t

fastened to the web, so that it, like from Pig. 2 can be seen is, with a movement of the rope q, in the direction of the arrow with this Rope are moved to the right, so that their mutual distance q ^ remains constanto at the same time is an edge scanning device Q5 provided at the beginning of a cutting process on the edge

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the web to be cut is set and also attached to the same side of the rope q as the knife ρ wiro. A handwheel q is attached to the 3 axis of the pulley qj, which is firmly connected to the pulley q, ieto

In the conveying direction of the web between the first pair of rollers c and the knives i or, ρ there are measuring devices 1, 1. for measuring the exact length of the web part to be separated is pressed on dleee. As _{can be seen from FIG. 1, a mating wheel 1 can be assigned to the measuring wheel I 1} on the opposite side of the material web, but instead of this mating wheel a guide wheel can be used which presses resiliently against the material web It is advisable to attach a measuring wheel on both sides of the web, since an exact measurement can only be made on the underside of a floor covering and it is not clear from the outset how this floor covering is wound up on the roll of goods a.,

The measuring device can also be equipped with a counter with preselection

counting clock η equipped eeln “At such a preselection counting clock becomes the desired length dt β to be cut off Bahnabechnitta set, whereby the transport of the web through the Device is stopped exactly when the specified

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length is reached ο In this way you can move without wasting time the cutting process immediately follows the heating process "

The entire device described so far forms a unit with an Oestell Zj, which is carried by four rail wheels t, two of which are fixed on two axes ν o The axes ν are rotatably mounted on the Oeatell Z ₁ η The rail wheels t run on rails u, are the ζ on top of a lower frame arranged in the transverse direction to the product web "in this way, the upper frame iat z- against .the base ζ and thus also displaced at the same time against the V.arerrolle a in the longitudinal direction thereof.

At least one of the axes v, on which the rail wheels, t sit firmly, is designed in part of its length as a worm, in which a worm wheel engages »dae on an Achoe Xj mn - in the old of a light or belt pulley or a» chain wheel is rotatably arranged ;. This disk or wheel is firmly connected to the worm wheel. On an axis * ₂ , which is rotatably mounted in the Oestell Z ₁ , a second belt pulley or a second chain wheel w ^ so-o like a belt wheel are firmly connected to this axis tenradf of the worm shaft eotrie the belt pulley or the Kettenoo wheel Wg is an endless belt or a chain y guided on this - * catfish when turning the handwheel w this rotation via the sight-

° be «2» <* ^βΙ * Belt y, the pulley on the shaft X ₁ , the worm wheel χ as well as the worm on the rail wheels t transformers ,, whereby

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a displacement of the frame ζ ^ against the sub-frame a is caused. By using a worm, however, it is ensured at the same time that a shift is only carried out when the handwheel is turned, while the rail wheels otherwise block aindo

The underframe ζ itself rests on four swivel castors Zg, which enable the device in question to be transported to any desired location, a stationary version is also possible α

The device described above works as follows:

The device is attached to the Roll of goods β driven, the pairs of rollers c and e parallel run to the longitudinal axis of the rolls of goods. Then ^ depending on whether the underside of e.g. a floor covering looks like aulien or inside on the Holle iat ^ daa preset counter the upper or lower measuring device 1 or «1, on the ge. Desired length set * In practical operation of the machine is measured either from above or below, a simultaneous Measure from above and below lsi -not possiblea be then, the W & l · zen pairs c and e put into operation and the goods can be delivered by Vf & renrol

Ie are unwound ο For feeding the material web into the Vorrlch ο
⁰

All that is required is a person to operate the monitor roller unwinds (because the web of material when it hits aaa FUh-

OO ■ '"■" ""

The first pair of orphans c is automatically inserted between them. Only with ⁴ ^ thicker webs it may be necessary to lift the upper roller by swiveling the lever r for better insertion

As soon as the material web is gripped by the first pair of rollers, the oie is automatically under the impeller 1 over the Table d towards the second orphan couple e * and inserted between them. If necessary, material webs can also be used here at eehr dioken the introduction can be facilitated by lifting the upper roller in the same way as before.

The web of material emerging from the second pair of rollers e is then wound up completely automatically, in that the rolls are all set in one and the same direction. The direction of rotation of the rolls depends on whether the top or the bottom of the web are rolled target. The position of the legs S ₁ and S _{2 is} to be selected accordingly. Should e.g. If the underside of the web of material is rolled, a position of the legs as in FIG. 1 is recommended, in which the legs 82 are pivoted downwards at a right angle to the surface d, and the legs S ₁ hereby open at the top form acute angles. The rollers f are then driven in the opposite direction as seen in FIG.

If, on the other hand, the upper side of the web is to be rolled up, so the two roller conveyors can be in the one shown in FIG

_{o are} brought into position in which the legs S ₁ and 82 one

u> form an obtuse angle with each other. You will then roll f

ο driven clockwise in the direction of view ο

With the machine according to PIg ₀ 1 and 3 all desired types of winding can be carried out, regardless of the side on which the roll a was wound before the severing cut or on which side the severed section a _{2 is to be} wound

In both cases, the winding takes place in a completely separate manner _/ and Y / aren rolls of any size, sections and thicknesses can be wound without the need for a special operator.

as soon as the desired length of the web has passed the measuring device, the drive is automatically activated both roller pairs c and e stopped and thus the lock for a shift of the Querochneidemeasers is lifted. That The knife can now be put into operation and automatically guided across the material web «which is an excellent one straight sonity results, since the part of the webs between the ereten and the second pair of rollers c and e are still kept under tension even after the drive device has been switched off which sioh resulted from the faster drive of the second pair of rollers compared to the first pair of rollers.

After the cut is done and the knife automatically v, leather has been returned to its initial position, the cut web section ag can thereby be removed from the device, since the hollows of the second roller conveyor 8j in FIG are now driven in the opposite direction, whereby the section of the railway is transported to the right. However, this can can also be carried out by the fact that the second Roller conveyor S ₁ , as shown in FIG. ₀ 3 in dashed lines, is pivoted so that the first and second roller conveyor ge ° ■ form an inclined plane over which the track section rolls, 00 9808/100 4

When performing length cuts, I repeat the same Steps. To the web at the height of the length axis is introduced. Then the resilient pointer q "of the edges" test device bia led to the edge of the web and in this position on the rope q, hooked. So will that or the knife ρ to the point at a distance from the pointer q, - brought, on which the longitudinal cut is to be made, and the guides of the knives are also attached to the rope q. The longitudinal cut is now carried out in that the web of material is guided past the essentially stationary knives ρ. However, a lateral displacement of the knife may result from the fact that the resilient pointer passes through a corresponding rotation of the handwheel q iomer is guided along the outer edge of the web, so that the distance of the Knife ρ from this outer edge always remains constant.

The cut web sections are then rolled up and removed in the same manner as for the cross-section described above.

If a web of material is introduced into the device in accordance with the invention that does not enter at a right angle due to the roll of material being covered with a tarnish, this can be compensated by shifting the upper _{frame S 1} against the lower frame ζ transversely to the direction of the material web. This is done as

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ride described above, by turning the handwheel W, which is transferred to the axes ν. In this way, even longer web sections from tied rolls of goods can be cut off precisely and without difficulty,

- Patent claims -

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Claims (1)

Claims 1 «machine for unrolling, measuring, cutting and rewinding of material webs, in particular floor coverings, which are mounted in a holder in rollers with a horizontal axis, characterized in that the machine has two Has conveyor roller pairs (c, e), between which the web (a.) Is guided and of which the first roller pair (c) arranged at the inlet end of the machine with a slightly lower speed can be driven than the further arranged in the conveying direction second pair of rollers (o) that one Cutting device (1) with motor-driven knife (k) is arranged between the two pairs of rollers so that it can be displaced by motor, in such a way that the knife moves in a roller-parallel manner Groove (g) is performed, and that on the second pair of rollers for Rolling up the web of material is followed by two Hollbahnen with rollers (f) that can be driven in the same direction, which one with the other Form an angle that is open at the top. ο Machine according to claim 1, characterized in that the rollers of each pair of conveyor rollers are resilient pressed together, and that each one (in particular manually operable) lifting device (s) for lifting the one roller of each pair is provided from the other. 009808/1004 -SLo- ■ ■. Machine according to Claim 1 or 2, characterized in that the one runway is essentially perpendicular arranged eats »that the angle between the two Hollbahnen pointed, but larger alo 45 °, and that at least the rollers of the lower Βε.ηη for conveying out the re-rolled ones The web of material can be driven in the same direction, but in the direction opposite to the rewinding. 4. Machine according to at least one of the preceding claims, P, characterized in that the rollers of the roller _{tracks are mounted in legs (a ^, B 2} ) which are pivotable against each other and against the machine frame ο 5ο machine according to at least one of the preceding claims, characterized in that at least one cutting device (ρ) for longitudinal cutting of the web of material is provided, the motor-driven knife is arranged at right angles to the roller axes that the cutting device (p) essentially rests during each cutting process, but is arranged displaceably in a guide parallel to the roller axes. 6. Machine according to at least one of the preceding claims, characterized in that, in a manner known per se, a follower wheel (1, I ₁ ) connected to a counter (s) can be pressed against the material web, and that 009808/1004 the counter for preselecting a certain web length has a correspondingly adjustable switching contact (preselection counter), which is in the feed circuit for the conveyor rollers given drive is » 7ο machines according to at least one of the preceding claims, characterized in that in the conveying direction in front of the first pair of rollers one over the entire rollers ^ wide extending Einführleitblech (b) is arranged for the web of material Machine according to at least one of the preceding claims, characterized in that the entire equipment of the machine including insertion, unwinding, measuring, Cutting and rewinding the webs as a unit parallel to the longitudinal axis of the unwinding roll of goods an underframe («) can be moved» 009808/10 (H. Blank page