EP0439771A1 - Dispositif pour le traitement ou la manipulation d'un mat˩riel en bande - Google Patents

Dispositif pour le traitement ou la manipulation d'un mat˩riel en bande Download PDF

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Publication number
EP0439771A1
EP0439771A1 EP90124376A EP90124376A EP0439771A1 EP 0439771 A1 EP0439771 A1 EP 0439771A1 EP 90124376 A EP90124376 A EP 90124376A EP 90124376 A EP90124376 A EP 90124376A EP 0439771 A1 EP0439771 A1 EP 0439771A1
Authority
EP
European Patent Office
Prior art keywords
drum
web
axis
material web
receiving device
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.)
Withdrawn
Application number
EP90124376A
Other languages
German (de)
English (en)
Inventor
Gerold Anderka
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.)
Rotring Werke Riepe KG
Original Assignee
Rotring Werke Riepe 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
Application filed by Rotring Werke Riepe KG filed Critical Rotring Werke Riepe KG
Publication of EP0439771A1 publication Critical patent/EP0439771A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven

Definitions

  • the invention relates to a device for working or processing a material web, which is guided from a storage area over a driven drum forming a processing surface and from there into a receiving device which is lower than the drum.
  • the processing of the web material consists in a drawing process which is carried out by means of a drawing head which can be moved back and forth parallel to the axis of rotation of the drum
  • the web material to be processed passes from one of the Storage area forming supply roll on a guide roller and a slack area on the drum. From there it is wound over a sag region and a guide roller onto a take-up roller forming the receiving device.
  • the supply roll and the take-up roll are driven in order to, depending on the degree of detection by sensors Slack of the material web between the supply roll and drum unwind more or less web material from the supply roll, and in order to wind up more or less web material onto the take-up roll depending on the sensor sag of the material web between the drum and winding roll.
  • Slack of the material web between the supply roll and drum unwind more or less web material from the supply roll, and in order to wind up more or less web material onto the take-up roll depending on the sensor sag of the material web between the drum and winding roll.
  • the known device is therefore structurally complex because it not only requires a driven supply roll and a driven take-up roll, but also additional control devices for the unwinding process and for the winding process are required.
  • a device of the known type can not only serve to designate a material web in the manner of a drum plotter, but instead of a drawing head, for example, a cutting head can be used to cut or cut out sheet-like film material, for example material in which the actual plastic film is provided with an adhesive layer and this adhesive layer is covered with a removable protective film. Areas can be cut out of the plastic film through incisions as far as the protective film, and symbols or representations that can be stuck on can be produced in this way.
  • the invention has for its object to provide a device for processing or processing a material web with a very simply constructed receiving device.
  • a device of the type mentioned at the outset is designed according to the invention in such a way that the receiving device forms a support region which extends parallel to the drum and which comes into contact with at least one part of the material web which runs perpendicular to the axis of rotation of the drum and comes into contact with it , this part has driving surface, and that a stationary deflection surface is arranged in the direction of movement at a distance from the point of impact of the material web on the support area above this.
  • the receiving device is thus not, as in the known device, formed by a take-up reel to be driven in a controlled manner, but the material web running off the drum comes into contact with gravity with a support region having a moving surface, and this surface takes up as a result of the existing friction between it and the material web with the material web so that it comes into contact with the stationary deflection surface, which returns the material web above the moving surface, so that the material web is wound up without this winding process taking place around a solid core.
  • the material web is moved against the actual feed direction by rotating the drum during the machining or processing operation, so that an area of the material web that has already run off the drum is returned to it, the web material becomes merely against gravity and the friction between the web material and the moving surface retracted in the direction of the drum, whereby a portion of the web material wound up in the receiving device may be unwound again.
  • the unwinding is carried out by pulling back the web material against the action of engagement between the moving surface of the receiving device and the material web.
  • the above-mentioned winding of the material web in the receiving device presupposes that the web material has a certain inherent stiffness, as is the case, for example, with thin drawing cardboard or with a multilayer film of the type mentioned above, so that it is displaced the web of material can actually take place due to the moving surface which carries the web of material and the web material does not simply collapse.
  • the requirements for the inherent rigidity of the web material depend on the respective application and can be easily determined by tests.
  • the winding process is also made easier if the web material was still rolled up before machining or processing, because then there is normally a certain amount of deformation in the winding direction.
  • the support area can be provided below the outlet side of the drum, so that the material web reaches the support area perpendicularly from the drum.
  • the support region has a plurality of support rollers, each forming a moving surface, by the rotation and engagement of the material web of which it is carried along and wound up in the direction of rotation of the support rollers.
  • a plurality of support rollers can be provided on an axis arranged parallel to the axis of rotation of the drum. Furthermore, it is possible to provide a plurality of axles supporting support rollers which are arranged parallel to the axis of rotation of the drum, so that a support region which extends transversely to the axis of rotation of the drum results from a number of rotationally driven support rollers, the axes being able to be arranged such that the support region is trough-shaped is trained.
  • the device according to FIGS. 1 and 2 has a frame 1 arranged on rollers, between the vertical side cheeks of which a drum 11 is held rotatably about its longitudinal axis 11 'in the upper end region.
  • the drum 11 has a gear-shaped disk 14 at one end, which is coupled in a manner not shown to the armature shaft of a drive motor 13 which can be rotated in both directions in a controlled manner.
  • suction openings 12 In the wall of the drum 11 there are suction openings 12 through which a negative pressure can be applied from the inside in a known manner, with the aid of which the material web 10 to be processed is held on the surface of the drum 11 so that it moves together with the latter.
  • the material web 10 is unwound from a supply area, which has a supply roll 2 (FIG. 1), which is fastened by means of bearing blocks 4, 6 to holding rails 3 running parallel to the axis of rotation 11 'of the drum 11. These holding rails 3 are held on the one hand on the holding bracket 4 and on the other hand on an additional holding bracket 5 fastened to a side cheek of the frame 1.
  • the supply roll 2 is driven in a manner which is not shown, but is known for such devices, in order to always deliver a sufficient amount of web material, this web material forming a sag between the supply roll 2 and the drum 11 in the manner indicated in FIG. This sag is monitored with the aid of sensors 9, so that if the sag is too great, the drive of the supply roll 2 is interrupted and, if the sag is too small, the supply roll 2 is driven to deliver web material.
  • the frame 1 On the side of the frame 1 which has the supply roll 2, there are side mudguards 7, 8, of which the mudguard 7 can be laterally displaced in accordance with the dimensions of the supply roll 2 used. Furthermore, between the supply roll 2 and the drum 11 there is a guide plate 20 which is held on the frame 1 essentially tangentially with respect to the drum 11 and via which the material web 10 slides onto the drum 11.
  • the guide plate 20 defines a precise transition of the web material to the drum 11, i.e. web material located only above the upper edge of the guide plate 20 is sucked into the surface of the drum 11 by the negative pressure applied to the openings 12, while web material located in the region of the guide plate 20 remains freely movable.
  • a guide rail 16 is fastened to the frame 1, which extends parallel to the axis of rotation 11 'of the drum 11 and on which the tool head 15 can be moved back and forth.
  • the tool head 15 can carry a cutting tool or a pen in a known manner and can also be moved in a known manner between a position in which the cutting tool or pen is in engagement with the material web and a position in which there is no engagement with the material web 10. However, this can also be achieved in a known manner by appropriate movement of the cutting tool or the pen.
  • a toothed belt 17 is attached to the tool head 15, which runs at one end of the guide rail 16 via a gear 19 and is connected at the other end to a drive motor 18, so that the tool head 15 by controlled drive of the Motor 18 can be moved back and forth along the guide rail 16 in the manner required for the machining and processing of the material web 10.
  • a guide plate 21 is attached to the frame 1, the arrangement and function of which corresponds to the guide plate 20 already described on the opposite side.
  • axles 130a, 130b, 130c, 130d, 130e, 130f, 130g and 130h which are coupled to one another and which are coupled to one another and arranged parallel to the axis of rotation 11 'of the drum 11, are mounted on the bearing blocks 125 and 126, on each of which non-rotatable support rollers 130A, 130B 130C, 130D, 130E, 130F, 130G, 130H, which for example have a roughened surface.
  • the support rollers of adjacent axes such as the support rollers 130A of the axis 130a and the support rollers 130B, of the axis 130b, are arranged such that a support roller, approximately 130B of one axis, approximately 130b, is located between two adjacent support rollers, approximately 130A, of the other Extend axis, about 130a, and overall a trough-shaped depression is formed (Figure 3).
  • the coupled axes 130a to 130h are continuously driven in the same direction by the electric motor 127, so that the upper surfaces of the support rollers 130A to 130H in FIG. 2 move in the direction of the curved deflection plate 132.
  • the receiving device 130 lies below the drum 11 in such a way that the web material running off the drum 11 comes into contact with gravity with an area of the receiving device 130 formed approximately by the support rollers 130A, 130B and optionally 130C and as a result thereof Touch is taken in the direction of the support roller 130H.
  • the web material to be worked or processed has a certain inherent rigidity and is usually pre-bent somewhat due to its previous winding on the supply roll 2 and the overflow of the curved surface of the drum 11, so that it does not just not of the receiving device 130 coincides, but already in the direction of the movement of the upper surfaces of the Back-up rollers 130A to 130H is pre-bent.
  • a wound section (FIG. 2) of the material web 10 is produced, which is without an inserted core and which, in particular when the drum 11 rotates, which leads to the retraction of web material that has already run off it again handled sufficiently far. It is therefore also not necessary to provide a loop-shaped slack made of web material between the drum 10 and the receiving direction 130.

Landscapes

  • Replacement Of Web Rolls (AREA)
EP90124376A 1990-02-01 1990-12-17 Dispositif pour le traitement ou la manipulation d'un mat˩riel en bande Withdrawn EP0439771A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4002893 1990-02-01
DE19904002893 DE4002893A1 (de) 1990-02-01 1990-02-01 Vorrichtung zur be- oder verarbeitung einer materialbahn

Publications (1)

Publication Number Publication Date
EP0439771A1 true EP0439771A1 (fr) 1991-08-07

Family

ID=6399172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124376A Withdrawn EP0439771A1 (fr) 1990-02-01 1990-12-17 Dispositif pour le traitement ou la manipulation d'un mat˩riel en bande

Country Status (2)

Country Link
EP (1) EP0439771A1 (fr)
DE (1) DE4002893A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104911941A (zh) * 2015-05-19 2015-09-16 福建汇利丰环保科技有限公司 一种可自动卷状收集压浆机输出的纸浆料的收料机构
CN111977421A (zh) * 2020-09-07 2020-11-24 杭州海洋电脑制版印刷有限公司 一种大幅面打印机的收卷装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199322A5 (fr) * 1972-09-07 1974-04-05 Hansa Technik Gmbh
US4160528A (en) * 1978-01-05 1979-07-10 F. A. Malone & Son, Inc. Carpet roll winding apparatus
EP0283339A1 (fr) * 1987-02-16 1988-09-21 Océ Graphics France S.A. Machine graphique avec dispositif de réception d'un support d'impression continu
US4784345A (en) * 1987-07-20 1988-11-15 Xerox Corporation Apparatus for automatically rolling up output sheets from a document reproduction system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199322A5 (fr) * 1972-09-07 1974-04-05 Hansa Technik Gmbh
US4160528A (en) * 1978-01-05 1979-07-10 F. A. Malone & Son, Inc. Carpet roll winding apparatus
EP0283339A1 (fr) * 1987-02-16 1988-09-21 Océ Graphics France S.A. Machine graphique avec dispositif de réception d'un support d'impression continu
US4784345A (en) * 1987-07-20 1988-11-15 Xerox Corporation Apparatus for automatically rolling up output sheets from a document reproduction system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104911941A (zh) * 2015-05-19 2015-09-16 福建汇利丰环保科技有限公司 一种可自动卷状收集压浆机输出的纸浆料的收料机构
CN104911941B (zh) * 2015-05-19 2017-03-08 福建汇利丰环保科技有限公司 一种可自动卷状收集压浆机输出的纸浆料的收料机构
CN111977421A (zh) * 2020-09-07 2020-11-24 杭州海洋电脑制版印刷有限公司 一种大幅面打印机的收卷装置

Also Published As

Publication number Publication date
DE4002893A1 (de) 1991-08-08

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