EP0951952A2 - Suction device for a double point coating installation - Google Patents

Suction device for a double point coating installation Download PDF

Info

Publication number
EP0951952A2
EP0951952A2 EP99106991A EP99106991A EP0951952A2 EP 0951952 A2 EP0951952 A2 EP 0951952A2 EP 99106991 A EP99106991 A EP 99106991A EP 99106991 A EP99106991 A EP 99106991A EP 0951952 A2 EP0951952 A2 EP 0951952A2
Authority
EP
European Patent Office
Prior art keywords
suction
roller
web
powder
suction 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Withdrawn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
EP99106991A
Other languages
German (de)
French (fr)
Other versions
EP0951952A3 (en
Inventor
Max Dubs
Hubert Holdener
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.)
Schaetti and Co
Original Assignee
Schaetti and Co
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 Schaetti and Co filed Critical Schaetti and Co
Publication of EP0951952A2 publication Critical patent/EP0951952A2/en
Publication of EP0951952A3 publication Critical patent/EP0951952A3/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D06B15/04—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/10—Arrangements for collecting, re-using or eliminating excess spraying material the excess material being particulate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/04—Cleaning by suction, with or without auxiliary action
    • B08B5/043—Cleaning travelling work
    • B08B5/046—Cleaning moving webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned

Definitions

  • the present invention relates to a suction device for a colon coating system according to the preamble of Claim 1.
  • a paste is first applied in a punctiform manner to a material web at regular intervals, and then a powder is sprinkled over it, which means that the paste spots or humps as well as their intermediate areas are at least partially coated with the powder.
  • the aim of the double-point coating is, however, to produce webs which have at least on one upper side individual knobs or points consisting of a paste and powder sprinkled over them and bonded to the paste, the web remaining uncoated in the areas between the individual knobs or points. For this reason, suction devices are used which suck off unconnected powder from the material web.
  • a suction device in which the Material web is carried out under a powder suction element, which sucks up the loose powder.
  • Material web before and after the powder suction element are two Suction nozzles arranged, which the web from the bottom suck in here and give a train on the web.
  • the direction of movement in front of the powder suction element is one Tapping roller arranged by a rotational movement tapping on the underside of the web and thereby poses the powder before it is removed from the powder suction element recorded and for other use or is drawn off for disposal.
  • This preferably has Suction roll over at least one blow nozzle to powder whirl up or keep in the balance.
  • At least one further suction roller arranged in front of the powder suction element on the direction of movement of the web.
  • To glue the suction roller to prevent is to remove powder deposits a squeegee or at least one blow nozzle on the suction roll available.
  • the advantage of the blow nozzle is that it is in the Can be arranged inside the suction roller, so that the suction openings let the roller clean by blowing it out.
  • a web 1 is shown, which of a Coating system coming in punctiform form with a paste 2 and has been coated with powder 3 sprinkled over it and now to remove the excess, not with the Paste 2 associated powder 3 'through a colon suction device is promoted according to the invention.
  • the for this used means are known and are therefore neither here shown still described.
  • the double-point suction device is constructed as follows, the individual elements being described in the transport direction of the material web: A control element 11, for example a UV lamp, is arranged on the coated top of the web 1. This is followed by a powder suction element 4 with a suction channel 40 and a control 16 and then an air curtain nozzle 10. On the underside of the web and at a distance from the powder suction element, there is a first rotatable tapping roller 8, which in this example has a square cross section. This is followed by a first suction roller 5 in the form of a perforated roller and a second tapping roller 9, likewise with a square cross section. All known means can be used as tapping rollers, which exert a tapping movement on the material web. Other cross-sectional shapes of the tapping roller are possible.
  • a second suction roller 6 arranged, which is adjustable in height. Preferably it is arranged higher than the first suction roller 5 so that the Goods web goes through a survey.
  • a third suction roller 7 available which is preferably at least approximately same height as the first suction roller 5 and equally spaced is arranged to the second suction roller 6.
  • All suction rollers 5, 6, 7 are preferably formed by perforated template rollers, in the cavity of which a negative pressure is present. However, other rotating rollers which achieve the most uniform suction possible can also be used. The suction effect is regulated by means of control elements 13, 14. All suction rollers 5, 6, 7 preferably have the same diameter, with at least the second suction roller 6 arranged below the powder suction element 4 being adjustable in height. Since the suction rolls 5, 6, 7 are rotatably mounted, they rotate with the web 1 or they further convey the web 1 lying thereon.
  • the uppermost point of the surface of the suction rollers 5, 6, 7 rises above the main spreading plane of the web 1, the first and third suction rollers 5, 7, also called conveyor rollers, achieve only a slight elevation of the web 1, for example in the order of magnitude the coating thickness.
  • the web 1 to be suctioned is first over the first Tapping roller 8 passed, which a tapping movement on the Exercises underside of the web 1 and loosens the powder.
  • the web 1 then runs over the first suction roll 6, the web 1 preferably slightly raised becomes.
  • the second tapping roller 9 dissolves the excess powder definitely from web 1 and swirls it up.
  • the second suction roll 6 becomes the web 1 in the direction Powder suction element 4 raised, which over the suction channel 40 sucks off the excess powder 3 '. Thanks to the control element 11 it can be seen whether this is not connected Powder 3 'has actually been whirled up.
  • Air curtain nozzle 10 controlled by a valve 15 forms escaping air a barrier that prevents whirled up Powder can pass through the powder suction element 4 and then again reflected on the web 1.
  • the web 1, which the powder suction element 4th has happened, is now conveyed via the third suction roller 7 and for further processing in the next processing station headed.
  • FIGS. 2a and 2b A special embodiment is shown in FIGS. 2a and 2b a first suction roller 5 or conveyor roller, which in the direction of movement of the web 1 in front of the powder suction element 4 is arranged. It has a hollow roller tube 50 on, which has suction openings distributed over the surface and is preferably made of metal. Preferably the suction openings are a fine grid of holes with hole sizes of approximately 1000 ⁇ m and 11 mesh (holes per inch length).
  • the roller tube 50 is at both ends known means stored and is also by means known drive means, not shown here, to the Center axis rotatable.
  • This roller tube 50 is preferably from a suction channel 51 made of metal, which is stored in the roller tube 50 is.
  • the suction channel 51 preferably projects from both sides of the Roller tube 50 out, being at a first end at a outer connecting pipe 52, shown here with a round cross section, is connected and closed at its second end is trained.
  • the suction channel 52 preferably has a square cross-section, with a side surface at least approximately parallel to the plane of the web 1 runs and its diagonal in the area of the first end almost corresponds to the diameter of the roller tube 50.
  • the suction channel 51 narrows towards the second end, the top of the web 1 facing at least runs approximately horizontally and also its width in remains essentially unchanged.
  • a downwardly extending support member 55 is arranged, which the support of the suction channel 51 to a further below described blow pipe 56 or other solid element serves.
  • the suction channel 51 is thus on the one hand by the Connection pipe 52 and on the other hand through the support element 55 held in place, the roller tube 50 around the stable Suction channel 51 is rotatable.
  • a rounded slide instead of the support member 55 present, which is arranged on the underside of the suction channel 51 and which is form-fitting, but sliding on the Inside of the roller tube 50 rests.
  • the upper side of the suction channel 51 that is executed toward the web 1 has a suction opening 54 which is at least approximately extends over the entire length of the roller tube 50 and which is at least approximately parallel to the tangent t of the in each case the highest point of the roller tube 50.
  • This suction opening is along both sides of it entire length surrounded by labyrinth-like lamellae 53, which are arranged on the top of the suction channel 51 and contact the inside of the roller tube 50 and sprung over this inside.
  • these slats 53 made of metal. Im through the slats 53 formed suction space 54, a negative pressure is generated.
  • a Material web 1 which is conveyed via the suction roller 5 sucked in via the hole pattern of the roller tube 1, the Rotational movement of the suction roller 5 the web 1 without draw promoted.
  • a blow tube 56 is also located within the roller tube 50 arranged in a stable position. It is in the direction of rotation the suction roller 5 after the suction chamber 54. In this example it is arranged below the suction channel 51.
  • This blowgun 56 is at a first end with a connecting pipe 57 connected, at the second end it is complete. It is with known means, which are inside and / or outside the Roller tube 50 are arranged, stored.
  • the blowpipe 56 has blowing openings at least approximately over its entire length on, which are executed to the roller tube 50. Air escapes through the perforated grid of the roller tube 50 blown and thereby removes any sticky that Roller sticking powder.
  • the blow pipe 56 thus acts as Cleaning supplies.
  • the blowpipe 56 can be use other cleaning agents, for example one on the Doctor blade acting on the outside of the roller tube 50.
  • the third suction roller 7 or conveyor roller, which is the powder suction element 4 follows is in a preferred embodiment constructed essentially identically to that above described first suction roller 5. However, it has none Blow nozzle as it is hardly contaminated by loose powder is exposed.
  • FIG. 3a and 3b is a second suction roll 6 or Back-up roller shown. It is also essentially identical constructed like the second suction roller 5 described above.
  • a blowing element in the form of a blowing tube 66 is present, which is now not for cleaning but for detachment of the excess powder 3 'is used. It is therefore not after the intake chamber but in front of this or as shown here, preferably arranged in this.
  • the blow pipe 66 with a oval cross-section, and its connecting tube 67 with a round is the blow pipe 66 with a oval cross-section, and its connecting tube 67 with a round.
  • the blow pipe 66 in turn has blow openings, which are executed to the roller tube 60.
  • the second Suction roll 7, the blow openings or nozzles are preferred vertically upwards or to the powder suction element executed. Air is blown through the blower openings and the hole pattern of the roller tube 50 blown through the web 1. As a result, excess powder that is not combined becomes longer pending and still on the web 1 powder lying on top is whirled up. Not connected, Excess powder 3 'can thus be better removed from the powder suction element 4 capture and suction from the web 1.
  • the support roller 6 is raised, so that the web at Funding is raised over this roller, so the open Gaps between the individual paste humps and from the Powder blown on the back dissolves more easily.
  • the support and conveyor rollers described above can be insert individually. To the efficiency of the suction device To optimize, however, they are used in combination.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coating Apparatus (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The suction device removes excess powder (3') from a double-coated web (1). The device includes a powder suction element (4), a web suction unit to direct the web and at least one shaking roll (8, 9) to shake off the excess powder. There is at least one rotatable suction roll (5-7) to take the web through the plant itself under little or no traction.

Description

Die vorliegende Erfindung betrifft eine Absaugvorrichtung für eine Doppelpunkt-Beschichtungsanlage gemäss Oberbegriff des Patentanspruches 1.The present invention relates to a suction device for a colon coating system according to the preamble of Claim 1.

Bei Doppelpunktbeschichtungen wird zuerst eine Paste punktförmig in gleichmässigen Abständen auf eine Warenbahn aufgebracht und anschliessend wird ein Pulver darübergestreut, wodurch einerseits die entstandenen Pastenpunkte oder -buckel wie auch deren Zwischenbereiche mindestens teilweise mit dem Pulver belegt werden.
Ziel der Doppelpunktbeschichtung ist jedoch, Warenbahnen herzustellen, welche mindestens auf einer Oberseite einzelne Noppen oder Punkte bestehend aus einer Paste und darüber aufgestreutem, mit der Paste verbundenen Pulver aufweist, wobei in den Bereichen zwischen den einzelnen Noppen oder Punkten die Warenbahn unbeschichtet bleibt. Deshalb werden Absaugvorrichtungen eingesetzt, welche nicht verbundenes Pulver von der Warenbahn absaugen.In the case of double-point coatings, a paste is first applied in a punctiform manner to a material web at regular intervals, and then a powder is sprinkled over it, which means that the paste spots or humps as well as their intermediate areas are at least partially coated with the powder.
The aim of the double-point coating is, however, to produce webs which have at least on one upper side individual knobs or points consisting of a paste and powder sprinkled over them and bonded to the paste, the web remaining uncoated in the areas between the individual knobs or points. For this reason, suction devices are used which suck off unconnected powder from the material web.

Bewährt hat sich eine Absaugvorrichtung, bei welcher die Warenbahn unter einem Pulver-Absaugelement durchgeführt wird, welches das lose Pulver absaugt. In Bewegungsrichtung der Warenbahn vor und nach dem Pulver-Absaugelement sind zwei Saugdüsen angeordnet, welche die Warenbahn von der Unterseite her ansaugen und so einen Zug auf die Warenbahn geben. In Bewegungsrichtung vor dem Pulver-Absaugelement ist eine Klopfwalze angeordnet, welche durch eine Rotationsbewegung eine Klopfbewegung auf die Unterseite der Warenbahn ausführt und dadurch das Pulver aufwirft, bevor es vom Pulver-Absaugelement erfasst und für anderweitige Verwendung oder zur Entsorgung abgesogen wird.A suction device in which the Material web is carried out under a powder suction element, which sucks up the loose powder. In the direction of movement Material web before and after the powder suction element are two Suction nozzles arranged, which the web from the bottom suck in here and give a train on the web. In The direction of movement in front of the powder suction element is one Tapping roller arranged by a rotational movement tapping on the underside of the web and thereby poses the powder before it is removed from the powder suction element recorded and for other use or is drawn off for disposal.

Obwohl diese Doppelpunkt-Absaugvorrichtung zufriedenstellende Resultate liefert, ist es trotzdem immer wieder vorgekommen, dass die Anordnung der Pasten/Pulverpunkte unregelmässig ist und, in gravierenden Fallen, das Pulver sogar das Gewebe verstopft. Dies ist insbesondere bei elastischen Materialien der Fall. Grund hierfür ist, dass die Warenbahnen in der Doppelpunkt-Absaugvorrichtung einem Zug unterworfen sind, welche das Gewebe dehnt.Although this colon suction device is satisfactory Delivers results, it has always happened, that the arrangement of the pastes / powder dots is irregular and, in serious cases, the powder even clogs the tissue. This is particularly the case with elastic materials Case. The reason for this is that the material webs in the colon suction device are subject to a train, which the tissue stretches.

Es ist Aufgabe der vorliegenden Erfindung, eine Doppelpunkt-Absaugvorrichtung zu schaffen, bei welcher die Warenbahn keinem oder lediglich einem geringen Zug unterworfen ist. It is an object of the present invention to provide a colon suction device to create at which the web is not subject to any or only a slight train.

Diese Aufgabe löst eine Doppelpunkt-Absaugvorrichtung mit den Merkmalen des Patentanspruchs 1. Weitere vorteilhafte Ausgestaltungsformen gehen aus den abhängigen Patentansprüchen hervor.A colon suction device solves this task with the Features of claim 1. Further advantageous embodiments go from the dependent claims forth.

Durch die Verwendung von rotierenden, aktiv angetriebenen Saugwalzen anstelle der festen Saugdüsen lässt sich die Warenbahn zuglos durch die Doppelpunkt-Absaugvorrichtung befördern.Through the use of rotating, actively driven Suction rolls instead of the fixed suction nozzles Goods web closed with the colon suction device promote.

In einer bevorzugten Ausführungsform ist eine Saugwalze unterhalb eines einen Absaugkanal aufweisenden Pulver-Absaugelementes angeordnet. Vorzugsweise verfügt diese Saugwalze über mindestens eine Blasdüse, um Pulver aufzuwirbeln beziehungsweise in der Schwebe zu halten.In a preferred embodiment is a suction roll below a powder suction element having a suction channel arranged. This preferably has Suction roll over at least one blow nozzle to powder whirl up or keep in the balance.

Vorteilhafterweise ist vor dem Pulver-Absaugelement, in Bezug auf die Bewegungsrichtung der Warenbahn, mindestens eine weitere Saugwalze angeordnet. Um eine Verklebung der Saugwalze zu verhindern, ist zur Entfernung von Pulverablagerungen auf der Saugwalze ein Rakel oder mindestens eine Blasdüse vorhanden. Vorteilhaft an der Blasdüse ist, dass sie sich im Innern der Saugwalze anordnen lässt, so dass sich die Saugöffnungen der Walze durch Ausblasen reinigen lassen. Advantageously, in front of the powder suction element on the direction of movement of the web, at least one further suction roller arranged. To glue the suction roller to prevent is to remove powder deposits a squeegee or at least one blow nozzle on the suction roll available. The advantage of the blow nozzle is that it is in the Can be arranged inside the suction roller, so that the suction openings let the roller clean by blowing it out.

In den beiliegenden Figuren ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt, welches in der nachfolgenden Beschreibung erläutert ist. Es zeigen

Figur 1
eine schematische Darstellung einer erfindungsgemässen Absaugvorrichtung für eine Doppelpunkt-Beschichtungsanlage;
Figur 2a
einen Querschnitt durch eine erste erfindungsgemässe Saugwalze;
Figur 2b
einen Längsschnitt durch die Saugwalze gemäss Figur 2a;
Figur 3a
einen Querschnitt durch eine zweite erfindungsgemässe Saugwalze und
Figur 3b
einen Längsschnitt durch die Saugwalze gemäss Figur 3a.
In the accompanying figures, an embodiment of the subject matter of the invention is shown, which is explained in the following description. Show it
Figure 1
a schematic representation of an extraction device according to the invention for a colon coating system;
Figure 2a
a cross section through a first suction roll according to the invention;
Figure 2b
a longitudinal section through the suction roll according to Figure 2a;
Figure 3a
a cross section through a second suction roller according to the invention and
Figure 3b
a longitudinal section through the suction roller according to Figure 3a.

In Figur 1 ist eine Warenbahn 1 dargestellt, welche von einer Beschichtungsanlage herkommend punktförmig mit einer Paste 2 und mit darüber gestreutem Pulver 3 beschichtet worden ist und nun zur Entfernung des überschüssigen, nicht mit der Paste 2 verbundenen Pulvers 3' durch eine Doppelpunkt-Absaugvorrichtung gemäss der Erfindung gefördert wird. Die hierzu verwendeten Mittel sind bekannt und sind deshalb hier weder dargestellt noch beschrieben. In Figure 1, a web 1 is shown, which of a Coating system coming in punctiform form with a paste 2 and has been coated with powder 3 sprinkled over it and now to remove the excess, not with the Paste 2 associated powder 3 'through a colon suction device is promoted according to the invention. The for this used means are known and are therefore neither here shown still described.

Die erfindungsgemässe Doppelpunkt-Absaugvorrichtung ist wie folgt aufgebaut, wobei die einzelnen Elemente in Transportrichtung der Warenbahn beschrieben sind:
Auf der beschichteten Oberseite der Warenbahn 1 ist ein Kontrollelement 11 angeordnet, beispielsweise eine UV-Lampe. Diesem folgt ein Pulver-Absaugelement 4 mit einem Absaugkanal 40 sowie einer Steuerung 16 und anschliessend eine Luftvorhangdüse 10.
Auf der Unterseite der Warenbahn und beabstandet vor dem Pulver-Absaugelement ist eine erste rotierbare Klopfwalze 8 vorhanden, welche in diesem Beispiel einen quadratischen Querschnitt aufweist. Anschliessend folgt eine erste Saugwalze 5 in Form einer Lochwalze sowie eine zweite Klopfwalze 9, ebenfalls mit quadratischem Querschnitt. Als Klopfwalzen lassen sich alle bekannten Mittel einsetzen, welche eine klopfende Bewegung auf die Warenbahn ausüben. Andere Querschnittsformen der Klopfwalze sind möglich.The double-point suction device according to the invention is constructed as follows, the individual elements being described in the transport direction of the material web:
A control element 11, for example a UV lamp, is arranged on the coated top of the web 1. This is followed by a powder suction element 4 with a suction channel 40 and a control 16 and then an air curtain nozzle 10.
On the underside of the web and at a distance from the powder suction element, there is a first rotatable tapping roller 8, which in this example has a square cross section. This is followed by a first suction roller 5 in the form of a perforated roller and a second tapping roller 9, likewise with a square cross section. All known means can be used as tapping rollers, which exert a tapping movement on the material web. Other cross-sectional shapes of the tapping roller are possible.

Unterhalb des Pulver-Absaugelementes 4 ist eine zweite Saugwalze 6 angeordnet, welche höhenverstellbar ist. Vorzugsweise ist sie höher angeordnet als die erste Saugwalze 5, damit die Warenbahn eine Erhebung durchläuft. Nachfolgend, das heisst nach dem Pulver-Absaugelement, ist eine dritte Saugwalze 7 vorhanden, welche vorzugsweise mindestens annähernd auf gleicher Höhe wie die erste Saugwalze 5 und gleichabständig zur zweiten Saugwalze 6 angeordnet ist. Below the powder suction element 4 is a second suction roller 6 arranged, which is adjustable in height. Preferably it is arranged higher than the first suction roller 5 so that the Goods web goes through a survey. Below, that is after the powder suction element is a third suction roller 7 available, which is preferably at least approximately same height as the first suction roller 5 and equally spaced is arranged to the second suction roller 6.

Vorzugsweise sind alle Saugwalzen 5,6,7 durch Lochschablonenwalzen gebildet, in deren Hohlraum ein Unterdruck vorhanden ist. Andere, eine möglichst gleichmässige Saugwirkung erzielende rotierende Walzen sind jedoch auch einsetzbar. Die Sogwirkung wird mittels Steuerelementen 13,14 geregelt.
Vorzugsweise weisen alle Saugwalzen 5,6,7 denselben Durchmesser auf, wobei mindestens die unterhalb des Pulver-Absaugelementes 4 angeordnete zweite Saugwalze 6 höhenverstellbar ist. Da die Saugwalzen 5,6,7 rotierbar gelagert sind, drehen sie mit der Warenbahn 1 mit beziehungsweise sie fördern die aufliegende Warenbahn 1 weiter. Vorzugsweise erhebt sich der jeweils oberste Punkt der Oberfläche der Saugwalzen 5,6,7 über die Hauptausbreitungsebene der Warenbahn 1, wobei die erste und dritte Saugwalze 5,7, auch Förderwalzen genannt, nur eine geringe Erhebung der Warenbahn 1 erzielen, beispielsweise in der Grössenordnung der Beschichtungsdicke. Die zweite Saugwalze 6, auch Stützwalze genannt, jedoch erzielt eine sinusförmige Erhebung der Warenbahn 1.All suction rollers 5, 6, 7 are preferably formed by perforated template rollers, in the cavity of which a negative pressure is present. However, other rotating rollers which achieve the most uniform suction possible can also be used. The suction effect is regulated by means of control elements 13, 14.
All suction rollers 5, 6, 7 preferably have the same diameter, with at least the second suction roller 6 arranged below the powder suction element 4 being adjustable in height. Since the suction rolls 5, 6, 7 are rotatably mounted, they rotate with the web 1 or they further convey the web 1 lying thereon. Preferably, the uppermost point of the surface of the suction rollers 5, 6, 7 rises above the main spreading plane of the web 1, the first and third suction rollers 5, 7, also called conveyor rollers, achieve only a slight elevation of the web 1, for example in the order of magnitude the coating thickness. The second suction roll 6, also called the backup roll, however, achieves a sinusoidal elevation of the web 1.

Die abzusaugende Warenbahn 1 wird zuerst über die erste Klopfwalze 8 geleitet, welche eine Klopfbewegung auf die Unterseite der Warenbahn 1 ausübt und so das Pulver lockert. Anschliessend verläuft die Warenbahn 1 über die erste Saugwalze 6, wobei die Warenbahn 1 vorzugsweise leicht angehoben wird. Die zweite Klopfwalze 9 löst das überschüssige Pulver definitiv von der Warenbahn 1 und wirbelt es nach oben. Durch die zweite Saugwalze 6 wird die Warenbahn 1 in Richtung Pulver-Absaugelement 4 angehoben, welches über den Absaugkanal 40 das überschüssige Pulver 3' absaugt. Dank dem Kontrollelement 11 ist ersichtlich, ob das nicht verbundene Pulver 3' tatsächlich aufgewirbelt worden ist. Die ebenfalls über ein Ventil 15 gesteuerte Luftvorhangdüse 10 bildet durch ausströmende Luft eine Barriere, welche verhindert, dass aufgewirbeltes Pulver das Pulver-Absaugelement 4 passieren kann und sich anschliessend wieder auf die Warenbahn 1 niederschlägt. Die Warenbahn 1, welche das Pulver-Absaugelement 4 passiert hat, wird nun über die dritte Saugwalze 7 gefördert und zur Weiterverarbeitung in die nächste Bearbeitungsstation geleitet.The web 1 to be suctioned is first over the first Tapping roller 8 passed, which a tapping movement on the Exercises underside of the web 1 and loosens the powder. The web 1 then runs over the first suction roll 6, the web 1 preferably slightly raised becomes. The second tapping roller 9 dissolves the excess powder definitely from web 1 and swirls it up. By the second suction roll 6 becomes the web 1 in the direction Powder suction element 4 raised, which over the suction channel 40 sucks off the excess powder 3 '. Thanks to the control element 11 it can be seen whether this is not connected Powder 3 'has actually been whirled up. The same Air curtain nozzle 10 controlled by a valve 15 forms escaping air a barrier that prevents whirled up Powder can pass through the powder suction element 4 and then again reflected on the web 1. The web 1, which the powder suction element 4th has happened, is now conveyed via the third suction roller 7 and for further processing in the next processing station headed.

In den Figuren 2a und 2b ist eine besondere Ausführungsform einer ersten Saugwalze 5 oder Förderwalze dargestellt, welche in Bewegungsrichtung der Warenbahn 1 vor dem Pulver-Absaugelement 4 angeordnet ist. Sie weist ein hohles Walzenrohr 50 auf, welches über die Oberfläche verteilte Saugöffnungen aufweist und vorzugsweise aus Metall gefertigt ist. Vorzugsweise handelt es sich bei den Saugöffnungen um ein feines Lochraster mit Lochgrössen von circa 1000 µm und 11 Mesh (Löcher pro inch Länge). Das Walzenrohr 50 ist an beiden Enden mit bekannten Mitteln gelagert und ist mittels ebenfalls bekannter, hier nicht dargestellten Antriebsmittel, um dessen Mittelachse rotierbar.A special embodiment is shown in FIGS. 2a and 2b a first suction roller 5 or conveyor roller, which in the direction of movement of the web 1 in front of the powder suction element 4 is arranged. It has a hollow roller tube 50 on, which has suction openings distributed over the surface and is preferably made of metal. Preferably the suction openings are a fine grid of holes with hole sizes of approximately 1000 µm and 11 mesh (holes per inch length). The roller tube 50 is at both ends known means stored and is also by means known drive means, not shown here, to the Center axis rotatable.

Dieses Walzenrohr 50 ist von einem Saugkanal 51, vorzugsweise aus Metall, durchsetzt, welcher im Walzenrohr 50 gelagert ist. Der Saugkanal 51 ragt vorzugsweise beidseitig aus dem Walzenrohr 50 heraus, wobei es an einem ersten Ende an ein äusseres Anschlussrohr 52, hier mit rundem Querschnitt dargestellt, angeschlossen ist und an seinem zweiten Ende geschlossen ausgebildet ist. Der Saugkanal 52 weist vorzugsweise einen quadratischen Querschnitt auf, wobei eine Seitenfläche mindestens annähernd parallel zur Ebene der Warenbahn 1 verläuft und dessen Diagonale im Bereich des ersten Endes fast annähernd dem Durchmesser des Walzenrohres 50 entspricht. Zum zweiten Ende hin verengt sich der Saugkanal 51, wobei die der Warenbahn 1 zugewandte Oberseite mindestens annähernd horizontal verläuft und auch seine Breite im wesentlichen unverändert bleibt. An seinem zweiten Ende ist ein nach unten ragendes Stützelement 55 angeordnet, welches der Abstützung des Saugkanals 51 auf ein weiter unten beschriebenes Blasrohr 56 oder einem anderen festen Element dient. Der Saugkanal 51 ist somit einerseits durch das Anschlussrohr 52 und andererseits durch das Stützelement 55 in seiner Lage gehalten, wobei das Walzenrohr 50 um den lagestabilen Saugkanal 51 rotierbar ist.This roller tube 50 is preferably from a suction channel 51 made of metal, which is stored in the roller tube 50 is. The suction channel 51 preferably projects from both sides of the Roller tube 50 out, being at a first end at a outer connecting pipe 52, shown here with a round cross section, is connected and closed at its second end is trained. The suction channel 52 preferably has a square cross-section, with a side surface at least approximately parallel to the plane of the web 1 runs and its diagonal in the area of the first end almost corresponds to the diameter of the roller tube 50. The suction channel 51 narrows towards the second end, the top of the web 1 facing at least runs approximately horizontally and also its width in remains essentially unchanged. At its second end a downwardly extending support member 55 is arranged, which the support of the suction channel 51 to a further below described blow pipe 56 or other solid element serves. The suction channel 51 is thus on the one hand by the Connection pipe 52 and on the other hand through the support element 55 held in place, the roller tube 50 around the stable Suction channel 51 is rotatable.

In einer anderen, hier nicht dargestellten Ausführungsform ist anstelle des Stützelementes 55 ein gerundeter Schlitten vorhanden, welcher an der Unterseite des Saugkanals 51 angeordnet ist und welcher formschlüssig, jedoch gleitend auf der Innenseite des Walzenrohres 50 aufliegt.In another embodiment, not shown here is a rounded slide instead of the support member 55 present, which is arranged on the underside of the suction channel 51 and which is form-fitting, but sliding on the Inside of the roller tube 50 rests.

Die zur Warenbahn 1 hingerichtete Oberseite des Saugkanals 51 weist eine Ansaugöffnung 54 auf, welche sich mindestens annähernd über die gesamte Länge des Walzenrohres 50 erstreckt und welche mindestens annähernd parallel zur Tangente t des jeweils höchsten Punktes des Walzenrohres 50 verläuft. Entweder ist der Saugkanal 51 hierfür geschlitzt ausgebildet, weist eine Ausnehmung auf oder die Oberseite weist ein Lochraster auf. Diese Ansaugöffnung ist beidseitig entlang ihrer gesamten Länge von labyrinthartigen Lamellen 53 umgeben, welche auf der Oberseite des Saugkanals 51 angeordnet sind und die Innenseite des Walzenrohres 50 kontaktieren und gefedert über diese Innenseite schleifen. Vorzugsweise sind diese Lamellen 53 aus Metall gefertigt. Im durch die Lamellen 53 gebildeten Ansaugraum 54 wird ein Unterdruck erzeugt. Eine Warenbahn 1, welche über die Saugwalze 5 gefördert wird, wird über das Lochraster des Walzenrohrs 1 angesaugt, wobei die Rotationsbewegung der Saugwalze 5 die Warenbahn 1 zuglos weiterfördert.The upper side of the suction channel 51 that is executed toward the web 1 has a suction opening 54 which is at least approximately extends over the entire length of the roller tube 50 and which is at least approximately parallel to the tangent t of the in each case the highest point of the roller tube 50. Either the suction channel 51 is slotted for this purpose, has a recess or the top has a hole pattern on. This suction opening is along both sides of it entire length surrounded by labyrinth-like lamellae 53, which are arranged on the top of the suction channel 51 and contact the inside of the roller tube 50 and sprung over this inside. Are preferred these slats 53 made of metal. Im through the slats 53 formed suction space 54, a negative pressure is generated. A Material web 1, which is conveyed via the suction roller 5 sucked in via the hole pattern of the roller tube 1, the Rotational movement of the suction roller 5 the web 1 without draw promoted.

Innerhalb des Walzenrohres 50 ist ferner ein Blasrohr 56 lagestabil angeordnet. Es befindet sich in Rotationsrichtung der Saugwalze 5 nach dem Ansaugraum 54. In diesem Beispiel ist es unterhalb des Saugkanals 51 angeordnet. Dieses Blasrohr 56 ist an einem ersten Ende mit einem Anschlussrohr 57 verbunden, am zweiten Ende ist es abgeschlossen. Es ist mit bekannten Mitteln, welche innerhalb und/oder ausserhalb des Walzenrohres 50 angeordnet sind, gelagert. Das Blasrohr 56 weist mindestens annähernd über seine gesamte Länge Blasöffnungen auf, welche zum Walzenrohr 50 hingerichtet sind. Ausströmende Luft wird durch das Lochraster des Walzenrohres 50 geblasen und entfernt dadurch eventuell haftende, die Walze verklebendes Pulver. Das Blasrohr 56 wirkt somit als Reinigungsmittel. Anstelle des Blasrohres 56 lassen sich andere Reinigungsmittel einsetzen, beispielsweise ein auf die Aussenseite des Walzenrohres 50 einwirkendes Rakel.A blow tube 56 is also located within the roller tube 50 arranged in a stable position. It is in the direction of rotation the suction roller 5 after the suction chamber 54. In this example it is arranged below the suction channel 51. This blowgun 56 is at a first end with a connecting pipe 57 connected, at the second end it is complete. It is with known means, which are inside and / or outside the Roller tube 50 are arranged, stored. The blowpipe 56 has blowing openings at least approximately over its entire length on, which are executed to the roller tube 50. Air escapes through the perforated grid of the roller tube 50 blown and thereby removes any sticky that Roller sticking powder. The blow pipe 56 thus acts as Cleaning supplies. Instead of the blowpipe 56 can be use other cleaning agents, for example one on the Doctor blade acting on the outside of the roller tube 50.

Die dritte Saugwalze 7 oder Förderwalze, welche dem Pulver-Absaugelement 4 nachfolgt, ist in einer bevorzugten Ausführungsform im wesentlichen identisch aufgebaut wie die oben beschriebene erste Saugwalze 5. Sie verfügt jedoch über keine Blasdüse, da sie kaum einer Verschmutzung durch loses Pulver ausgesetzt ist.The third suction roller 7 or conveyor roller, which is the powder suction element 4 follows is in a preferred embodiment constructed essentially identically to that above described first suction roller 5. However, it has none Blow nozzle as it is hardly contaminated by loose powder is exposed.

In den Figuren 3a und 3b ist eine zweite Saugwalze 6 oder Stützwalze dargestellt. Auch sie ist im wesentlichen identisch aufgebaut wie die oben beschriebene zweite Saugwalze 5. Dabei wird in den Figuren 3a und 3b das Walzenrohr mit der Bezugsziffer 60, der Saugkanal mit 61, das zugehörige Anschlussrohr mit 62, die Lamellen mit 63, die Ansaugöffnung mit 64 und das Stützelement mit 65 bezeichnet. Ferner ist wiederum ein Blaselement in Form eines Blasrohres 66 vorhanden, welches nun jedoch nicht zur Reinigung sondern zur Loslösung des überschüssigen Pulvers 3' dient. Es ist deshalb nicht anschliessend an den Ansaugraum sondern vor diesem oder wie hier dargestellt, vorzugsweise in diesem angeordnet. Im hier dargestellten Beispiel ist das Blasrohr 66 mit einem ovalen Querschnitt ausgebildet, und dessen Anschlussrohr 67 mit einem runden. Diese Querschnittsformen sind jedoch nicht zwingend. Das Blasrohr 66 weist wiederum Blasöffnungen auf, welche zum Walzenrohr 60 hingerichtet sind. Bei der zweiten Saugwalze 7 sind die Blasöffnungen oder -düsen vorzugsweise senkrecht nach oben beziehungsweise zum Pulver-Absaugelement hingerichtet. Luft wird durch das Blasöffnungen und das Lochraster des Walzenrohres 50 durch die Warenbahn 1 geblasen. Dadurch wird nicht verbundenes, überschüssiges Pulver länger in der Schwebe gehalten und noch auf der Warenbahn 1 aufliegendes Pulver wird hochgewirbelt. Nicht verbundenes, überschüssiges Pulver 3' lässt sich somit besser vom Pulver-Absaugelement 4 erfassen und von der Warenbahn 1 absaugen. Ist die Stützwalze 6 erhöht, so dass die Warenbahn bei der Förderung über diese Walze angehoben wird, so öffnen sich die Zwischenräume zwischen den einzelnen Pastenbuckel und von der Rückseite her angeblasene Pulver löst sich leichter.In Figures 3a and 3b is a second suction roll 6 or Back-up roller shown. It is also essentially identical constructed like the second suction roller 5 described above. The roller tube with the Reference number 60, the suction channel with 61, the associated connecting pipe at 62, the fins at 63, the intake opening designated 64 and the support element with 65. Further is again a blowing element in the form of a blowing tube 66 is present, which is now not for cleaning but for detachment of the excess powder 3 'is used. It is therefore not after the intake chamber but in front of this or as shown here, preferably arranged in this. in the The example shown here is the blow pipe 66 with a oval cross-section, and its connecting tube 67 with a round. However, these cross-sectional shapes are not imperative. The blow pipe 66 in turn has blow openings, which are executed to the roller tube 60. The second Suction roll 7, the blow openings or nozzles are preferred vertically upwards or to the powder suction element executed. Air is blown through the blower openings and the hole pattern of the roller tube 50 blown through the web 1. As a result, excess powder that is not combined becomes longer pending and still on the web 1 powder lying on top is whirled up. Not connected, Excess powder 3 'can thus be better removed from the powder suction element 4 capture and suction from the web 1. The support roller 6 is raised, so that the web at Funding is raised over this roller, so the open Gaps between the individual paste humps and from the Powder blown on the back dissolves more easily.

Die oben beschriebenen Stütz- und Förderwalzen lassen sich einzeln einsetzen. Um den Wirkungsgrad der Absaugvorrichtung zu optimieren, werden sie jedoch in Kombination eingesetzt.The support and conveyor rollers described above can be insert individually. To the efficiency of the suction device To optimize, however, they are used in combination.

Claims (10)

Absaugvorrichtung für eine Doppelpunkt-Beschichtungsanlage zur Entfernung von überschüssigem Pulver (3') von einer doppelbeschichteten Warenbahn (1), wobei die Absaugvorrichtung ein Pulver-Absaugelement (4) zur Entfernung des überschüssigen Pulvers, eine Warenbahn-Ansaugeinheit zur Ausrichtung der Warenbahn und mindestens eine Klopfwalze (8,9) zur Lockerung des überschüssigen Pulvers aufweist,
dadurch gekennzeichnet, dass
die Warenbahn-Ansaugeinheit mindestens eine rotierbare Saugwalze (5,6,7) zur Förderung der Warenbahn (1) durch Auflage derselben aufweist.Suction device for a double-point coating system for removing excess powder (3 ') from a double-coated web (1), the suction device comprising a powder suction element (4) for removing the excess powder, a web suction unit for aligning the web and at least one Tapping roller (8,9) for loosening the excess powder,
characterized in that
the web suction unit has at least one rotatable suction roller (5, 6, 7) for conveying the web (1) by resting the same. Absaugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die mindestens eine Saugwalze (5,6,7) eine Lochwalze ist.Suction device according to claim 1, characterized in that the at least one suction roller (5,6,7) a Perforated roller is. Absaugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass mindestens drei Saugwalzen (5,6,7) vorhanden sind, wobei eine erste Saugwalze (5) in Bewegungsrichtung der Warenbahn (1) vor dem Pulver-Absaugelement (4), eine zweite Saugwalze (6) unterhalb des Pulver-Absaugelementes (4) und eine dritte Saugwalze (7) nach dem Pulver-Absaugelement (4) angeordnet ist. Suction device according to claim 1, characterized in that there are at least three suction rolls (5,6,7) are, wherein a first suction roller (5) in the direction of movement the web (1) in front of the powder suction element (4), one second suction roller (6) below the powder suction element (4) and a third suction roller (7) after the powder suction element (4) is arranged. Absaugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die mindestens eine Saugwalze (6) höhenverstellbar ist.Suction device according to claim 1, characterized in that the at least one suction roller (6) is height adjustable is. Absaugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Saugwalze (5,6,7) ein rotierbar gelagertes, Saugöffnungen aufweisendes Walzenrohr (50,60) aufweist, welches von einem lagestabilen Saugkanal (51,61) durchsetzt ist, welcher in einem Ansaugraum innerhalb des Walzenrohres einen Unterdruck erzeugt.Suction device according to claim 1, characterized in that the suction roller (5,6,7) is a rotatably mounted Roller tube (50, 60) having suction openings, which is penetrated by a positionally stable suction channel (51, 61) which is in a suction space inside the roller tube creates a negative pressure. Absaugvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Ansaugraum vom Saugkanal (51,61) und von Lamellen (53,63) gebildet wird, wobei die Lamellen (53,63) die Innenseite des Walzenrohres (50,60) kontaktieren.Suction device according to claim 5, characterized in that the suction space from the suction channel (51,61) and from Slats (53,63) is formed, the slats (53,63) contact the inside of the roller tube (50,60). Absaugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass in der mindestens einen Saugwalze (6) ein Blaselement (66) angeordnet ist zur Aufwirbelung von überschüssigem Pulver (3').Suction device according to claim 1, characterized in that in the at least one suction roller (6) a blowing element (66) is arranged to whirl up excess Powder (3 '). Absaugvorrichtung nach den Ansprüche 3 und 7, dadurch gekennzeichnet, dass die mindestens eine Saugwalze (6) unter dem Pulver-Absaugelement (4) angeordnet ist. Suction device according to claims 3 and 7, characterized in that the at least one suction roller (6) is arranged under the powder suction element (4). Absaugvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass in mindestens einer Saugwalze (5) ein Reinigungsmittel (56) angeordnet ist zur Reinigung der Saugwalze (5), wobei das Reinigungsmittel (56) in Rotationsrichtung der Saugwalze (5) nach der Auflagestelle der Warenbahn (1) angeordnet ist.Suction device according to claim 1, characterized in that in at least one suction roller (5) a cleaning agent (56) is arranged for cleaning the suction roller (5), wherein the cleaning agent (56) in the direction of rotation the suction roller (5) after the support point of the Material web (1) is arranged. Absaugvorrichtung nach den Ansprüchen 3 und 9, dadurch gekennzeichnet, dass das Reinigungsmittel eine Blasrohr (56) ist, welches innerhalb der Saugwalze (5) angeordnet ist und dass die mindestens eine Saugwalze (5) in Bewegungsrichtung der Warenbahn (1) vor dem Pulver-Absaugelement (4) angeordnet ist.Suction device according to claims 3 and 9, characterized characterized that the detergent is a blowpipe (56), which is arranged inside the suction roller (5) and that the at least one suction roller (5) in the direction of movement the web (1) in front of the powder suction element (4) is arranged.
EP99106991A 1998-04-21 1999-04-09 Suction device for a double point coating installation Withdrawn EP0951952A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH91398 1998-04-21
CH91398 1998-04-21
CH01657/98A CH693870A5 (en) 1998-04-21 1998-08-11 Suction device for a colon-coating plant.
CH165798 1998-08-11

Publications (2)

Publication Number Publication Date
EP0951952A2 true EP0951952A2 (en) 1999-10-27
EP0951952A3 EP0951952A3 (en) 2000-02-02

Family

ID=25686095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99106991A Withdrawn EP0951952A3 (en) 1998-04-21 1999-04-09 Suction device for a double point coating installation

Country Status (3)

Country Link
US (1) US6261366B1 (en)
EP (1) EP0951952A3 (en)
CH (1) CH693870A5 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10001746A1 (en) * 2000-01-17 2001-07-26 Klaus Doehrer Cleaning station, for moving rolled metal strip materials, has an assembly of suction jets and workpiece oscillation to loosen surface matter for extraction by an under pressure
WO2003008123A1 (en) * 2001-07-11 2003-01-30 Doehrer Klaus Method for the removal of contaminants adhering to a moving strip-like workpiece and device for carrying out said method
CN103614897A (en) * 2013-11-29 2014-03-05 苏州骏熠纺织有限公司 Textile unhairing device
CN111286953A (en) * 2020-03-31 2020-06-16 周兰风 Cloth dust removal device for spinning

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6634192B2 (en) * 2001-02-12 2003-10-21 Pti Advanced Filtration, Inc. System and method for flushing a membrane web using a vacuum roller
US20070262005A1 (en) * 2006-05-11 2007-11-15 Ikuo Hisakawa Paste screener
CN107419500A (en) * 2017-09-12 2017-12-01 湖州博仁纺织品有限公司 A kind of weaving face fabric high-efficiency environment friendly dust arrester
CN112588694A (en) * 2020-11-26 2021-04-02 合肥佳华环境工程科技有限公司 Cleaning structure for environmental protection equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375357A1 (en) * 1976-12-22 1978-07-21 Truetzschler & Co Carded fibre blanket cleaning unit - having a rotating sieve with inner suction unit, in contact with moving blanket
US4852209A (en) * 1987-05-20 1989-08-01 Kleinewefers Gmbh Apparatus for cleaning calender rolls and the like
US4978000A (en) * 1986-05-10 1990-12-18 Pwh Anlagen & Systeme Gmbh Conveyor system including discharge pulley
US5062216A (en) * 1987-08-14 1991-11-05 Champion International Corporation Single tiered multi-cylinder paper dryer apparatus
GB2315544A (en) * 1996-07-25 1998-02-04 Faust Thermographic Supply Ltd Improvements to thermography

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1635317A (en) * 1926-03-03 1927-07-12 William P Feeney Felt conditioner for paper machines
US3013938A (en) * 1958-12-11 1961-12-19 Beloit Iron Works Plain press with suction felt drying means
IT1167252B (en) 1982-10-18 1987-05-13 Schaetti & Co PROCEDURE FOR THE APPLICATION ON TEXTILE SUPPORTS OF PLASTIC POWDER
US5094886A (en) * 1989-01-17 1992-03-10 Npd Corporation Method and apparatus for pattern impregnation of paper and other non-woven web
DE69128374T2 (en) * 1990-03-30 1998-04-02 Kuraray Co Process for producing a fiber-reinforced thermoplastic molding product and product produced in this way
DE4140652A1 (en) * 1991-12-10 1993-06-17 Volker Ludwig DEVICE FOR COATING A SUBSTRATE WITH A SUBSTANCE
US6007632A (en) * 1997-07-11 1999-12-28 Vitrom Manufacturing Consultants System and method for impregnating a moving porous substrate with active materials to produce battery electrodes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375357A1 (en) * 1976-12-22 1978-07-21 Truetzschler & Co Carded fibre blanket cleaning unit - having a rotating sieve with inner suction unit, in contact with moving blanket
US4978000A (en) * 1986-05-10 1990-12-18 Pwh Anlagen & Systeme Gmbh Conveyor system including discharge pulley
US4852209A (en) * 1987-05-20 1989-08-01 Kleinewefers Gmbh Apparatus for cleaning calender rolls and the like
US5062216A (en) * 1987-08-14 1991-11-05 Champion International Corporation Single tiered multi-cylinder paper dryer apparatus
GB2315544A (en) * 1996-07-25 1998-02-04 Faust Thermographic Supply Ltd Improvements to thermography

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"APPARATUS FOR REMOVING DUST FROM WEB MATERIAL" RESEARCH DISCLOSURE,GB,INDUSTRIAL OPPORTUNITIES LTD. HAVANT, Nr. 389, September 1996 (1996-09), Seite 538 XP000635463 ISSN: 0374-4353 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10001746A1 (en) * 2000-01-17 2001-07-26 Klaus Doehrer Cleaning station, for moving rolled metal strip materials, has an assembly of suction jets and workpiece oscillation to loosen surface matter for extraction by an under pressure
DE10001746C2 (en) * 2000-01-17 2003-05-22 Klaus Doehrer Method for removing impurities adhering to a strip-shaped rolled metal strip moving in the longitudinal direction thereof, and device for carrying out the method
WO2003008123A1 (en) * 2001-07-11 2003-01-30 Doehrer Klaus Method for the removal of contaminants adhering to a moving strip-like workpiece and device for carrying out said method
CN103614897A (en) * 2013-11-29 2014-03-05 苏州骏熠纺织有限公司 Textile unhairing device
CN111286953A (en) * 2020-03-31 2020-06-16 周兰风 Cloth dust removal device for spinning
CN111286953B (en) * 2020-03-31 2021-04-30 徐海霞 Cloth dust removal device for spinning

Also Published As

Publication number Publication date
EP0951952A3 (en) 2000-02-02
US6261366B1 (en) 2001-07-17
CH693870A5 (en) 2004-03-31

Similar Documents

Publication Publication Date Title
DE3687143T2 (en) DEVICE AND METHOD FOR PRODUCING A FIBER FLEECE.
DE60206307T2 (en) Handover device for objects
DE69005439T2 (en) Cleaning device.
DE2530126A1 (en) DEVICE FOR VACUUMING DRY OR DAMP POLLUTION FROM A FLOOR
EP0549648A1 (en) Device for conveying insulating glass panes.
WO2004035279A1 (en) System and method for glueing fibres for the production of fibre plates, especially mdf plates
CH630315A5 (en) Scraper apparatus for reversible belt bands
EP0951952A2 (en) Suction device for a double point coating installation
CH641980A5 (en) SPRAY CABIN WITH A TUNNEL-SHAPED HOUSING.
DE4408247A1 (en) Floor cleaning machine for sports halls
EP1760191B1 (en) Device and method for cleaning conveyors and fabrics, in particular of paper machines
WO1991002128A1 (en) Process and device for obtaining a compressible area in at least one edge region of a heat-insulating, soundproofing and/or fireproofing mineral fibre panel or strip and mineral fibre panels so obtained
DE4009442C2 (en)
EP0031445B1 (en) Process for acting upon a pre-drained fibrous tissue on a screen, and device for carrying out the process
DE2232610A1 (en) CHAIN DEVICE FOR A CONVEYOR SYSTEM FOR PAPER PROCESSING PLANTS
DE3001734A1 (en) Tobacco treatment drum - with steam nozzles and silicone scrapers to keep them clear
DE102005048836A1 (en) Live storage rack for commissioning e.g. box-shaped container, has pivoting plate that is pivoted upwards for feeding side by lever arm, where friction surface exerts force depending on weight of storage unit on lower side of storage unit
DE9210105U1 (en) Transport device for paper sheets or similar.
EP1191144B1 (en) Curtain coating apparatus
EP0562541A1 (en) Device to separate secondary growths and/or roots from bulbs
DE19955421A1 (en) Scraper for conveyor belt has two groups of scraper blades in V-shaped pairs pointing in opposite directions with guides mounted on rods at right angles to belt, one at point of V and other near mid-point of arms, this being spring-mounted
DE3936874C2 (en) Dispenser for containers, in particular for bottles
EP2074888B1 (en) Coating machine for sweets with a bottom coating station
DE3020535A1 (en) DEVICE FOR CLEANING SLOVE FRUIT
DE19919350C2 (en) Device for treating floors

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE IT LI NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000306

AKX Designation fees paid

Free format text: AT CH DE IT LI NL

17Q First examination report despatched

Effective date: 20020424

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20020905