EP0311728B1 - Doctoring device - Google Patents

Doctoring device Download PDF

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Publication number
EP0311728B1
EP0311728B1 EP87730126A EP87730126A EP0311728B1 EP 0311728 B1 EP0311728 B1 EP 0311728B1 EP 87730126 A EP87730126 A EP 87730126A EP 87730126 A EP87730126 A EP 87730126A EP 0311728 B1 EP0311728 B1 EP 0311728B1
Authority
EP
European Patent Office
Prior art keywords
doctor
application surface
mount
application
profile
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.)
Expired - Lifetime
Application number
EP87730126A
Other languages
German (de)
French (fr)
Other versions
EP0311728A1 (en
Inventor
Johannes Zimmer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE8787730126T priority Critical patent/DE3784723D1/en
Priority to EP87730126A priority patent/EP0311728B1/en
Priority to AT87730126T priority patent/ATE86533T1/en
Priority to PCT/EP1988/000431 priority patent/WO1989003256A1/en
Priority to HU883421A priority patent/HU213082B/en
Priority to JP63504087A priority patent/JPH03501822A/en
Priority to EP88107937A priority patent/EP0311744B1/en
Priority to PCT/EP1988/000432 priority patent/WO1989003257A1/en
Priority to ES198888107937T priority patent/ES2035150T3/en
Priority to US07/469,561 priority patent/US5134958A/en
Priority to HU883933A priority patent/HU209375B/en
Priority to EP88107938A priority patent/EP0311745B1/en
Priority to EP88107936A priority patent/EP0311743B1/en
Priority to EP88107935A priority patent/EP0311742B1/en
Priority to BR888807742A priority patent/BR8807742A/en
Priority to BR888807241A priority patent/BR8807241A/en
Priority to DE8888107938T priority patent/DE3878630D1/en
Priority to DE8888107935T priority patent/DE3879354D1/en
Priority to US07/381,680 priority patent/US4993352A/en
Priority to AT88107935T priority patent/ATE86890T1/en
Priority to DE8888107937T priority patent/DE3874274D1/en
Priority to BR888807750A priority patent/BR8807750A/en
Priority to PCT/EP1988/000434 priority patent/WO1989003259A1/en
Priority to AU17814/88A priority patent/AU1781488A/en
Priority to JP63504300A priority patent/JPH02501540A/en
Priority to ES198888107935T priority patent/ES2040775T3/en
Priority to AU17901/88A priority patent/AU1790188A/en
Priority to AU19311/88A priority patent/AU1931188A/en
Priority to HU883513A priority patent/HU207004B/en
Priority to ES198888107936T priority patent/ES2028938T3/en
Priority to AT88107937T priority patent/ATE80067T1/en
Priority to AT88107938T priority patent/ATE85904T1/en
Priority to AU17221/88A priority patent/AU1722188A/en
Priority to PCT/EP1988/000433 priority patent/WO1989003258A1/en
Priority to HU883948A priority patent/HU207469B/en
Priority to DE8888107936T priority patent/DE3866669D1/en
Priority to JP63504452A priority patent/JPH03501823A/en
Priority to JP63504693A priority patent/JPH02502797A/en
Priority to BR888807240A priority patent/BR8807240A/en
Priority to AT88107936T priority patent/ATE69981T1/en
Priority to US07/469,562 priority patent/US5156682A/en
Priority to US07/255,604 priority patent/US4920914A/en
Publication of EP0311728A1 publication Critical patent/EP0311728A1/en
Priority to US07/364,436 priority patent/US4998500A/en
Priority to US07/501,258 priority patent/US5063873A/en
Application granted granted Critical
Publication of EP0311728B1 publication Critical patent/EP0311728B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/10—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the liquid or other fluent material being supplied from inside the roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
    • B05C11/025—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface with an essentially cylindrical body, e.g. roll or rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • B05C11/041—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for positioning, loading, or deforming the blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • B05C11/041—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for positioning, loading, or deforming the blades
    • B05C11/042—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for positioning, loading, or deforming the blades allowing local positioning, loading or deforming along the blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • B05C11/044—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for holding the blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • B05C11/045—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by the blades themselves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0831—Machines for printing webs
    • B41F15/0836—Machines for printing webs by means of cylindrical screens or screens in the form of endless belts
    • B41F15/084—Machines for printing webs by means of cylindrical screens or screens in the form of endless belts simultaneously printing on two sides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors
    • B41F15/426—Inking units comprising squeegees or doctors the squeegees or doctors being magnetically attracted

Definitions

  • the invention relates to a doctor device for applying application material such as foamable substances of different viscosities, coating materials, lacquers, adhesives, pastes or the like. on an application surface (substrate) with a squeegee that can be pressed against it, the device comprising a squeegee element that acts on the application material with the squeegee, which is held by a support bar, which is mounted directly in a position-adjustable holder that is adjustable in distance from the application surface, and that as a result of the change in the holder spacing about an axis of articulation determined by the doctor blade extension of an articulated connection arranged on the doctor blade element and connecting it to the holder can be pivoted.
  • application material such as foamable substances of different viscosities, coating materials, lacquers, adhesives, pastes or the like.
  • Such a squeegee device is used, for example, in machines for flat stencil printing, for round stencil applications and / or devices for stencilless full-area applications, the width of the application area or the doctor blade extension being able to be several meters.
  • sample applications printing
  • full-surface applications e.g. impregnation, coating, dyeing, painting
  • Influencing the order result or the setting of the order quantities is of considerable importance. It is known to vary the application result by changing the contact pressure and / or the selection of doctor blades.
  • the dependency of the application result on the contact pressure, the substrate material, the substance viscosity and / or the size or the spatial shape of the substance supply before a doctor blade leads to problems which have not been satisfactorily solved in every respect.
  • doctor blades with a small diameter are used for the application of small amounts of substance, doctor blades with a large diameter, however, for the application of larger amounts of substance.
  • too much contact force is disadvantageous for some application materials or goods or substrate qualities.
  • a lever drive for adjusting the angle of a doctor blade attached to a doctor element (rail).
  • the doctor element rigidly connected to the handlebars must be set in a position firmly locked to the application surface in order to be able to press the blade against an application surface by means of an air chamber arranged between the latter and the doctor element.
  • the means for locking the doctor element are exposed to particular mechanical wear.
  • the space requirement of the known device is undesirably large with the mounting space required for the lever drive.
  • a squeegee device is also known (DE-A 25 44 784), in which a squeegee roller can be pressed against the back of a profiled strip which is distanced from the rolling surface of the squeegee roller.
  • a profile strip in addition to the doctor blade effect, a doctor blade effect influencing the application result can be produced to a practically limited extent.
  • the profile strip and the doctor blade roller form components which must be kept available in a manner adapted to one another, in particular for each type of machine and the particular type of application, and in this respect are to be handled separately from one another.
  • the application quantity, the size of the substance space and / or its shape must be determined and fixed before starting up a printing device.
  • the invention has for its object to provide a doctor blade device that is particularly simple to build, easy to handle and can be used universally in different application machines and with which the application result or the application of substance during operation of a machine is largely continuous, accurate, reproducible, defined and can also be fine-tuned.
  • the device is a the squeegee element from the holder spacing holding element in the form of a retaining strip, a holding profile or the like., Which is carried by the support beam, and that the squeegee element is articulated by means of the articulation in the form of a joint to the holding element such that that about the hinge axis pivotable squeegee element is pressed against this against the application surface due to the pivoting articulation on the holding element.
  • the conversion of the spacing movement of the holder into the pivoting movement of the doctor element enables the doctor element to be positioned and aligned very effectively and precisely with respect to the parameters relevant for the substance application.
  • the pivoting movement of the doctor element allows the substance storage space lying between it and the application surface to be changed as desired in terms of size or shape and / or an application angle of a substance wedge which is in doctor blade extension in front of a doctor blade or in front of its application or pressure line.
  • the pivoting of the doctor element can be carried out in a large angular range with already small changes in the distance of the holder.
  • the change in the distance of the holder from the application surface can be accomplished with simple means, and it can be carried out during machine operation according to a very important aspect of the invention.
  • Another significant advantage is that one and the same doctor element can be used for very different application results, for different application types and / or different machines, since its application effect can be adjusted to different desired application functions due to the pivoting that can be carried out over a wide angular range.
  • the level of the contact pressure of the doctor element in the direction of the application surface is less important than in conventional devices, since the application result can be adjusted to a considerable extent regardless of a large or small contact pressure due to the pivotability of the doctor element.
  • an assembly space-saving unit is achieved within an application device, in particular in a round stencil printing machine.
  • the application result can be influenced in a particularly favorable manner with the inflatable distance movement of the doctor element, in that the doctor element has at least one doctor axis or profile surface that is parallel to the application surface and has a working gap that tapers or narrows in the direction of the area of a doctor pressure line and / or or trains order material room.
  • the working gap or the order material space can be changed to a large extent, especially during machine operation.
  • a relatively large pressure is exerted on the substance with a flat working gap or a flat substance wedge, so that the depth of penetration into a substrate is correspondingly large.
  • a relatively large substance space is achieved with a steep working gap, in which case the pressure on the substance is relatively low.
  • a flat-shaped working gap or a steep-shaped working gap can be changed continuously and - if desired - only slightly by the pivoting movement of the doctor element.
  • Parts of the doctor element can have a doctor blade and / or roller doctor blade.
  • the doctor element is designed as a profile strip, in particular at least partially made of plastic, in or on which a doctor blade and / or doctor blade is mounted by means of a receptacle is.
  • the doctor blade is evasive in the direction facing away from the application surface, the profile strip in particular being cut free on the side facing away from the application surface in such a way that a recess is formed on the back of the doctor blade.
  • a very advantageous embodiment consists in the fact that the profile strip is integrated with a roller doctor blade, in that it is provided free-running in a receptacle of the profile strip.
  • the roller doctor blade is freely supported in a receptacle against the sliding surface or coating by the force of a magnetic device arranged in a longitudinal axis parallel to the longitudinal axis of the profile strip, which can comprise a permanent magnet in the profile strip extension or axis.
  • the profile strip and the doctor blade roll form a handling unit which can be installed in or removed from a printing device and also cleaned as a unit.
  • the apex area of the doctor roller lying against the sliding surface or the sliding coating also forms a sealing strip, so that no substance can get into the area behind the doctor roller.
  • the squeegee element or the profile bar has at least one particularly continuous, advantageously also the Magnetic bearing of a doctor roll in the profile bar serving supporting element with a mass provided for the doctor pressure. It is beneficial that in the profile bar a support member made of magnetizable material such as steel or the like. is embedded, so that a doctor blade can be magnetically pressed by means of a magnetic device arranged under the application surface.
  • a doctor blade can be designed with a relatively small diameter, since the profile strip with the doctor blade carried by it can already be magnetically attracted or pressed by means of the beam-shaped support element in particular and / or the iron weight of the support element or the profile strip.
  • One embodiment of the invention is that the distance of the bearing from the application surface can be changed by an adjustment that is essentially perpendicular to the latter, by pivoting the bearing and / or guiding the bearing along a curved path.
  • a vertical adjustment is very advantageously achieved in that the bearing comprises the squeegee bearing, laterally arranged on the application surface, to this height-variable holders.
  • the pivoting of the bearing is advantageously carried out about a longitudinally parallel axis, which lies on the side of the application surface with respect to the bearing. A doctor pressure line can thus be displaced either against or in the direction of travel of a substrate web when the bearing is lowered or the distance is reduced.
  • a guide of the bearing along a curved path can also be provided, with which the bearing can be lowered or raised at the same time.
  • a further embodiment consists in that the distance-adjustable adjustable bearing is arranged such that it can be changed substantially parallel to the application surface transversely to the doctor blade extension.
  • the pivoting longitudinal axis of the doctor element can be arranged offset with respect to the center of gravity or the center of gravity of the doctor element in such a way that it can be pivoted either to the right or to the left.
  • the holding element is carried at an angle by the bearing in such a way that the squeegee contact line remains in the area under the bearing, in particular in the area under an inserted in the bearing, with the holding element firmly connected to the holding element at the angle when the bearing distance changes.
  • the squeegee element In order to mount the squeegee element to the left or to the right in a pivotable manner and / or to preset the pivoting dimension, it is particularly expedient for the squeegee element to have a plurality of connection elements which can be used differently from the center of gravity.
  • a connecting element is preferably designed in the form of a plug-in or clamping element with which a swivel connection can be quickly and easily produced with a corresponding receptacle on the bearing or on the holding element.
  • the doctor element is made of plastic, it is very advantageous that it is pivotally mounted by means of a material-elastic joint.
  • the swivel bracket of the doctor element or the profile bar and the arrangement of the bearing are provided such that when the bearing moves at a distance or when the doctor element swivels, the doctor element is displaced transversely to the doctor extension while maintaining the pressed position.
  • the pivoting movement of the doctor element results in a change in location of the doctor pressure line transverse to the doctor extension in the direction of the substrate web. This is desirable if the doctor blade system or doctor blade coating or rolling surface is to be guided into a specific application line, for example in order to counteract an undesired misalignment of a doctor blade and / or a stencil shift or shape change possible during machine operation.
  • the bearing change of the doctor application line is particularly easy to accomplish even during machine operation.
  • the doctor element provided with the swivel bearing according to the invention is, in addition to the already mentioned magnetic possibility of pressing in the direction of the substrate, particularly well suited for pressing devices comprising mechanical, hydraulic and / or pneumatic means.
  • Each squeegee device 3 extends in a circular stencil 7.
  • a printing blanket 8 is a web forming the substrate or application surface 4, which moves during printing operation by means of the printing blanket 8 in the running direction L and thereby by pressing a squeegee 301, 302 against the Stencil 7 is printed by its pattern with a substance 5 lying in the running direction L in front of a doctor pressure line 36.
  • Each squeegee device 3 comprises a squeegee element 30 which supports a squeegee 301 or 302, a holding element 33 and a carrying bar 38 which can expediently form a substance feed tube (not shown) or carry it inside.
  • the holding element 33 is fixed at an angle W to the support bar 38 e.g. connected by means of a screw or welded connection.
  • the squeegee element 30 is articulated to the holding element 33 in the region above the application surface 4.
  • This is preferably in the form of a holding strip, a holding profile or the like. educated. It is shaped and connected to the support bar 38 in such a way that the doctor element 30 is located substantially below the support bar 38, the doctor line 36 coming to lie in the region of the intersection of the plane of symmetry of the bearing bar 38 which is perpendicular to the web 4 and parallel to the axis.
  • the doctor element 30 can be pivoted in each case by changing the distance A of the support bar 38, which corresponds to the distance of a bearing 2 supporting the support bar 38.
  • the bearing 2 comprises brackets 21 which are designed as bearing glasses and into which the carrying bar 38 is inserted.
  • the bearings 21 are arranged in an application machine or device (not shown in detail) to the side of the web 4, so that the support bar 38 extends freely over the application surface 4 or width of the goods.
  • the brackets 21 are steplessly changeable by means of a tripod guide 22, in particular height adjustment by an electric motor.
  • the doctor element 30 is designed as a profile strip 31 which extends parallel to the longitudinal or articulated axis 320. It consists at least partially of a magnetizable material, or a magnetizable support element in the form of a carrier 35 is embedded along its extent, as shown in FIGS. 6 and 7.
  • the profile strip 31 can thus be magnetically attracted uniformly along its extension in the direction of the printing blanket 8 by means of a magnetic device 6 arranged beneath it.
  • a special measure consists in the storage of a doctor blade 301, 302 in the profile strip. 1 and 7 show a doctor blade 301 which is mounted in the lower region of the profiled strip facing the application surface 4.
  • a doctor blade or profile surface 310 is formed which faces the application surface 4 and which forms a working gap r which tapers or narrows substantially in the direction of the region of the doctor pressure line 36 and thus forms an application material space 51.
  • the profile strip 31 is designed in combination with a roller doctor blade 302.
  • the doctor blade 302 is freely guided in a groove-shaped receptacle parallel to the longitudinal axis, which is open to the web 4 and allows the doctor blade 302 to roll on the template 7 or relative to the web 4.
  • the walls of the receptacle 314 are designed as sliding surfaces 315 or are provided with a suitable sliding coating.
  • the profile strip 31 lies on the roller doctor blade 302 along a line 316 parallel to the longitudinal axis or is pressed onto the latter.
  • the profile bar 31 pivots or tilts about the axis 316 which is displaced in this area. It is essential that the profile bar 31 resting on the doctor roller 302 thus exerts a sealing function and acts as a sealing bar with which the substance pressure in the Room 51 or the substance is sealed off from the area lying behind the roller doctor blade in the running direction L.
  • the roller doctor blade 302 can, however, also bear against a lateral flank of the groove-shaped receptacle 314 along a line 317.
  • FIGS. 4 and 5 These two possibilities are shown in FIGS. 4 and 5. This provides an additional seal for the crown system 316.
  • the embodiment according to FIG. 6 represents a very advantageous magnetic mounting of the doctor blade 302 by means of a permanent magnet, in particular bar-shaped, embedded in the profile strip.
  • the profile strip 31 can be removed as a single, quasi one-piece component with the doctor blade during removal and installation Handle 302.
  • the doctor roller 302 is made of a magnetizable material and is held in the receptacle against the sliding surface 315 by means of the magnet 340. This spatially separates the doctor roller from the magnet 340.
  • the permanent magnet rod 340 lying over the doctor extension has a double function.
  • the profile strip 31 shown in FIGS. 3 to 7 has, in addition to the profile surface 310 described above, a profile surface 311 which extends over the doctor blade extension and faces the application surface 4 and is arranged between the roller doctor blade 302 and the profile surface 310. It forms a relatively flat and short working gap directly in front of the doctor roller 302, while a relatively steep substance space 51 'is formed with the profile surface 310.
  • the combination of the two profile surfaces 310, 311 ensures that the profile strip 31 performs the actual substance application function directly in front of the doctor roller 302 by means of the gap r, while The size and shape of the substance in front of the doctor roller 302 can be adjusted essentially by changing the wedge-shaped storage space 51 '.
  • FIG. 1 and 2 show how a slight change in the height of the bearing 2 leads to a considerable change in the shape and / or size of the storage space 51 in front of the doctor pressure line 36.
  • the bearing 2 is lowered to the height A1 in a substantially perpendicular direction a to the application surface 4.
  • the doctor element 30, seen in the running direction L of the web 4 is arranged above the longitudinal axis 312, so that the pivoting movement S takes place to the left in the direction s when the distance is reduced.
  • the hinge axis 320 viewed in the running direction L, is provided below the longitudinal axis 312, so that when the bearing 2 is lowered, a pivoting movement S takes place to the right in the direction s.
  • the substance space 51 or a profile surface inclination angle with the web 4 can be reduced or enlarged by changing the distance in the direction a.
  • the profile surfaces shown in Fig. 1 to 9 are flat. However, these surfaces can also be provided so as to be curved in a manner suitable for influencing the substance work space.
  • FIGS. 3 to 5 The height-controlled variability of the substance space is particularly clear from FIGS. 3 to 5. There you can see that the profile strip 31 can be varied with the roller doctor blade 302 from a height position A3 to A2 to A1.
  • the doctor pressure line 36 is displaced in the web running direction L during a swiveling movement s to the left.
  • a targeted change in the position of the pressing line 36 along the web 4 or along the template 7 can thus be achieved. This is of particular importance if e.g. During machine operation, the contact line of the template 7 on the web 4 changes and / or a squeegee changes its position during operation. Such changes can be countered by the targeted shift v.
  • FIG. 4 shows a change in altitude for a bearing 2 (not shown in detail) with a horizontal movement component.
  • the bearing which carries the support beam 38, is pivoted along an arc K and / or guided on a curve ZB with scenes.
  • the hinge axis 320 is displaced against the running direction L.
  • the doctor pressure line 36 is displaced in the web running direction L as a result of the pivoting movement in the direction s of the profile strip 31, the two opposite movements are compensated for, so that the roller doctor blade 302 - depending on a suitably chosen curvature of the curve K - can be held in a targeted position in its central position above the magnet device 6.
  • the offset of the pressure line 36 in the direction of travel L that has already been achieved by the pivoting movement is increased.
  • the holding element 33 is firmly connected to the apex line of the support bar 38.
  • the swivel mount 32 of the doctor element 31 is carried out on the holding element 33 by means of a hinge joint 321.
  • a material-elastic joint is provided, and in FIGS. 4, 8 and 9, clamping plug connections 323 are formed.
  • a connecting element 330 is provided, which is detachably inserted into a clamping shell of the holding element 33.
  • Connection elements 330 can advantageously also be arranged on other parts of the profile strip in order to carry out the pivoting of their choice.
  • a recess 37 is formed on the profile bar in the region of the rear side of the coating bar with regard to a very advantageous mobility or elasticity of the blade of the doctor blade 301 mounted in the profile bar 31.
  • a hydraulically pressed doctor element 30 is shown.
  • an element 39 is provided with a pressure medium P and provided with an elastic wall along the doctor blade length, which depending on the degree of exposure presses the doctor blade 301 against the stencil 7 or the web 4.
  • the doctor device according to the invention is not limited to the arrangement shown in FIGS. 1 to 9 with the application surface 4 lying horizontally. Particularly when the doctor blade is pressed magnetically, it can be achieved very advantageously with the doctor device according to the invention that the pivotable doctor element is arranged and aligned with respect to a vertical application surface or an application surface inclined at any angle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

A doctoring device (1) for applying application material such as, possibly, expandable substances of different viscosity, coating materials, paints, adhesives, pastes or the like to an application surface (4) with a doctor (301) which can be pressed onto the latter is to be of simple construction, easy to handle and universally usable, in which case it should be possible to change the result of the application, in particular during the operation of the doctoring machine in a continuous, accurate and defined manner. For this purpose, the doctor device (1) comprises a doctoring element (30) which can be swivellably moved about a longitudinal axis (320) determined by the doctoring extension and acts together with the doctor (301) on the application material and is secured by means of a bearing (2), the distance (A) of which from the application surface (4) can be changed and adjusted by swivelling (S) the doctoring element (30). <IMAGE>

Description

Die Erfindung betrifft eine Rakeleinrichtung zum Auftragen von Auftragsmaterial wie ggf. schäumbaren Substanzen unterschiedlicher Viskosität, Beschichtungsstoffen, Lacken, Klebern, Pasten od.dgl. auf eine Auftragsfläche (Substrat) mit einer an diese anpreßbaren Rakel wobei die Einrichtung ein mit der Rakel auf das Auftragsmaterial einwirkendes Rakelelement umfaßt, das von einem Tragholm gehalten ist, der unmittelbar in einer im Abstand zu der Auftragsfläche einstellbar lageveränderbaren Halterung gelagert ist, und das infolge der Veränderung des Halterungsabstandes um eine durch die Rakelerstreckung bestimmte Gelenkachse einer an dem Rakelelement angeordneten, dieses mit der Halterung Verbindenden Gelenkverbindung schwenkbewegbar ist. Eine solche Rakeleinrichtung gelangt z.B. in Maschinen für Flachschablonen-Druck, für Rundschablonen-Auftragungen und/oder Vorrichtungen für schablonenlose vollflächige Auftragungen zum Einsatz, wobei die Breite der Auftragsfläche bzw. die Rakelerstreckung mehrere Meter betragen kann. Je nach Maschinentyp lassen sich bemusternde Auftragungen (Bedrucken) und/oder vollflächige Auftragungen (z.B. Imprägnieren, Beschichten, Färben, Lackieren) ausführen.The invention relates to a doctor device for applying application material such as foamable substances of different viscosities, coating materials, lacquers, adhesives, pastes or the like. on an application surface (substrate) with a squeegee that can be pressed against it, the device comprising a squeegee element that acts on the application material with the squeegee, which is held by a support bar, which is mounted directly in a position-adjustable holder that is adjustable in distance from the application surface, and that as a result of the change in the holder spacing about an axis of articulation determined by the doctor blade extension of an articulated connection arranged on the doctor blade element and connecting it to the holder can be pivoted. Such a squeegee device is used, for example, in machines for flat stencil printing, for round stencil applications and / or devices for stencilless full-area applications, the width of the application area or the doctor blade extension being able to be several meters. Depending on the machine type, sample applications (printing) and / or full-surface applications (e.g. impregnation, coating, dyeing, painting) can be carried out.

Der Beeinflussung des Auftragungsergebnisses bzw. der Einstellung der Auftragungsmengen kommt erhebliche Bedeutung zu. Es ist bekannt, das Auftragungsergebnis durch Veränderung der Anpreßkraft und/oder die Auswahl von Rakeln zu variieren. Die Abhängigkeit des Auftragungsergebnisses von der Anpreßkraft, des Substratmaterials, der Substanzviskosität und/oder der Größe bzw. der räumlichen Form des Substanzvorrates vor einer Rakel führt zu Problemen, die nicht in jeder Hinsicht zufriedenstellend gelöst worden sind. Z.B. werden Rakelrollen mit kleinem Durchmesser für die Auftragung geringer Substanzmengen, Rakelrollen mit großem Durchmesser hingegen für die Auftragung größerer Substanzmengen verwendet. Damit ergibt sich eine unerwünschte Abhängigkeit des Substanzraumes oder des vor der Rakel Anpreß-  oder -auftragslinie liegenden Substanzkeils von der verwendeten Rakel und/oder von der Kraft zur Anpressung einer Rakel. Insbesondere ist für manche Auftragsmaterialien bzw. Waren- oder Substratqualitäten eine zu große Anpreßkraft nachteilig.Influencing the order result or the setting of the order quantities is of considerable importance. It is known to vary the application result by changing the contact pressure and / or the selection of doctor blades. The dependency of the application result on the contact pressure, the substrate material, the substance viscosity and / or the size or the spatial shape of the substance supply before a doctor blade leads to problems which have not been satisfactorily solved in every respect. For example, doctor blades with a small diameter are used for the application of small amounts of substance, doctor blades with a large diameter, however, for the application of larger amounts of substance. This results in an undesirable dependency of the substance space or the substance wedge lying in front of the doctor pressure or application line on the doctor blade used and / or on the force for pressing on one Squeegee. In particular, too much contact force is disadvantageous for some application materials or goods or substrate qualities.

Bei einer bekannten Rakeleinrichtung der gattungsgemäßen Art (DE-A 22 07 935) ist zur Winkeleinstellung einer an einem Rakelelement (Schiene) befestigten Abstreichklinge ein Hebeltrieb vorgesehen. Das mit Lenkern starr verbundene Rakelelement muß in eine zur Auftragsfläche fest arretierte Position eingestellt werden, um die Klinge mittels einer zwischen dieser und dem Rakelelement angeordneten Luftkammer gegen eine Auftragsfläche pressen zu können. Dadurch besteht eine unerwünschte Abhängigkeit der Größe des Substanzspaltes von der Anpreßkraft. Die Mittel zum Arretieren des Rakelelements sind besonderem mechanischen Verschleiß ausgesetzt. Der Platzbedarf der bekannten Einrichtung ist mit dem für den Hebeltrieb erforderlichen Montageraum unerwünscht groß.In a known doctor device of the generic type (DE-A 22 07 935), a lever drive is provided for adjusting the angle of a doctor blade attached to a doctor element (rail). The doctor element rigidly connected to the handlebars must be set in a position firmly locked to the application surface in order to be able to press the blade against an application surface by means of an air chamber arranged between the latter and the doctor element. As a result, there is an undesirable dependence of the size of the substance gap on the contact pressure. The means for locking the doctor element are exposed to particular mechanical wear. The space requirement of the known device is undesirably large with the mounting space required for the lever drive.

Auch ist eine Rakelvorrichtung bekannt (DE-A 25 44 784), bei der eine Rakelrolle an die Rückseite einer von der Abrollfläche der Rakelrolle distanzierten Profilleiste anpreßbar ist. Mit einer solchen Profilleiste kann in praktisch nur beschränktem Maß zusätzlich zu der Rollrakelwirkung eine das Auftragungsergebnis beeinflussende Streichrakelwirkung erzeugt werden. Die Profilleiste und die Rakelrolle bilden Bauteile die insbesondere für jeden Maschinentyp und die jeweils gemeinseute Auftragungsart aneinander angepaßt zur Verfügung gehalten werden müssen und insoweit getrennt voneinander zu handhaben sind.A squeegee device is also known (DE-A 25 44 784), in which a squeegee roller can be pressed against the back of a profiled strip which is distanced from the rolling surface of the squeegee roller. With such a profile strip, in addition to the doctor blade effect, a doctor blade effect influencing the application result can be produced to a practically limited extent. The profile strip and the doctor blade roller form components which must be kept available in a manner adapted to one another, in particular for each type of machine and the particular type of application, and in this respect are to be handled separately from one another.

Bei den bekannten Vorrichtungen muß die Auftragungsmenge, die Größe des Substanzraumes und/oder dessen Form vor Inbetriebnahme einer Druckvorrichtung bestimmt und festgelegt werden.In the known devices, the application quantity, the size of the substance space and / or its shape must be determined and fixed before starting up a printing device.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, eine Rakeleinrichtung zu schaffen, die besonders einfach baut beauem handhabbar sowie universell in verschiedenen Auftragungsmaschinen verwendbar ist und mit der das Auftragungsergebnis bzw. der Substanzauftrag während des Betriebes einer Maschine in weitem maß kontinuierlich, genau, reproduzierbar, definiert und auch feinwirkend veränderbar ist.In contrast, the invention has for its object to provide a doctor blade device that is particularly simple to build, easy to handle and can be used universally in different application machines and with which the application result or the application of substance during operation of a machine is largely continuous, accurate, reproducible, defined and can also be fine-tuned.

Diese Aufgabe wird in Verbindung mit den Merkmalen der eingangs genannten Rakeleinrichtung dadurch gelöst, daß die Einrichtung ein das Rakelelement von der Halterung beabstandendes Halteelement in Form einer Halteleiste, eines Halteprofils od. dgl. umfaßt, das von dem Tragholm getragen ist, und daß das Rakelelement mittels der Gelenkverbindung in Form eines Gelenks derart an das Halteelement angelenkt ist, daß das um die Gelenkachse schwenkbewegliche Rakelelement bei auf dieses ausgeübter Anpreßkraft aufgrund der Schwenkanlenkung an dem Halteelement gegen die Auftragsfläche gepreßt wird. Die Umsetzung der Abstandsbewegung der Halterung in die Schwenkbewegung des Rakelelements ermöglicht eine sehr wirksame und präzise durchführbare Positionierung bzw. Ausrichtbarkeit des Rakelelements hinsichtlich der für die Substanzauftragung maßgeblichen Parameter. Durch die Schwenkbewegung des Rakelelements kann der zwischen diesem und der Auftragsfläche liegende Substanzstauraum hinsichtlich Größe oder Form und/oder ein Auftragungswinkel eines Substanzkeiles, der in Rakelerstreckung vor einer Rakel bzw. vor deren Auftrags- oder -anpreßlinie liegt, nach Wunsch verändert werden. Das Verschwenken des Rakelelements ist in einem großen Winkelbereich mit bereits kleinen Abstandsveränderungen der Halterung durchführbar. Die Abstandsveränderung der Halterung gegenüber der Auftragsfläche läßt sich mit einfachen Mitteln bewerkstelligen, wobei sie gemäß einem sehr wichtigen Aspekt der Erfindung während des Maschinenbetriebes vorgenommen werden kann. Ein weiterer wesentlicher Vorteil besteht darin, daß ein und dasselbe Rakelelement für sehr verschiedene Auftragungsergebnisse, für verschiedene Auftragungsarten und/oder verschiedene Maschinen einsetzbar ist, da es hinsichtlich seiner Auftragswirkung infolge der in einem großen Winkelbereich durchführbaren Verschwenkung auf verschiedene gewünschte Auftragungsfunktionen einstellbar ist. In bezug auf das Auftragungsergebnis kommt der Höhe des Anpreßdruckes des Rakelelements in Richtung auf die Auftragsfläche eine geringere Bedeutung zu als bei herkömmlichen Einrichtungen, da das Auftragungsergebnis infolge der Verschwenkbarkeit des Rakelelements jedenfalls in einem beachtlichen Umfang unabhängig von einem großen oder kleinen Anpreßdruck eingestellt werden kann.This object is achieved in connection with the features of the doctor device mentioned above in that the device is a the squeegee element from the holder spacing holding element in the form of a retaining strip, a holding profile or the like., Which is carried by the support beam, and that the squeegee element is articulated by means of the articulation in the form of a joint to the holding element such that that about the hinge axis pivotable squeegee element is pressed against this against the application surface due to the pivoting articulation on the holding element. The conversion of the spacing movement of the holder into the pivoting movement of the doctor element enables the doctor element to be positioned and aligned very effectively and precisely with respect to the parameters relevant for the substance application. The pivoting movement of the doctor element allows the substance storage space lying between it and the application surface to be changed as desired in terms of size or shape and / or an application angle of a substance wedge which is in doctor blade extension in front of a doctor blade or in front of its application or pressure line. The pivoting of the doctor element can be carried out in a large angular range with already small changes in the distance of the holder. The change in the distance of the holder from the application surface can be accomplished with simple means, and it can be carried out during machine operation according to a very important aspect of the invention. Another significant advantage is that one and the same doctor element can be used for very different application results, for different application types and / or different machines, since its application effect can be adjusted to different desired application functions due to the pivoting that can be carried out over a wide angular range. With regard to the application result, the level of the contact pressure of the doctor element in the direction of the application surface is less important than in conventional devices, since the application result can be adjusted to a considerable extent regardless of a large or small contact pressure due to the pivotability of the doctor element.

Mit dem von der Halterung getragenen Halteelement in Form einer Halteleiste, eines Halteprofils od.dgl. ist eine Montageraum sparende Einheit innerhalb einer Auftragsvorrichtung, insbesondere in einer Rundschablonen-Druckmaschine erreicht.With the holding element carried by the holder in the form of a holding strip, a holding profile or the like. an assembly space-saving unit is achieved within an application device, in particular in a round stencil printing machine.

Mit dem infloge Abstandsbewegung schwenkbaren Rakelelement läßt sich das Auftragungsergebnis besonders günstig dadurch beeinflussen, daß das Rakelelement wenigstens eine der Auftragsfläche zugewandte längsachsenparallele Rakel- oder Profilfläche aufweist, die einen im wesentlichen in Richtung auf den Bereich einer Rakelanpressungslinie sich keilförmig verjüngenden oder sich verengenden Arbeitsspalt und/oder Auftragsmaterialraum ausbildet. Der Arbeitsspalt bzw. der Auftragsmaterialraum ist insbesondere während des Maschinenbetriebs in großem Umfang veränderbar. Für bestimmte Auftragungen ist es besonders zweckmäßig, daß mit der Rakel-/Profilfläche ein flachförmiger Arbeitsspalt ausgebildet ist, während für andere Anwendungen ein mit der Rakel-/Profilfläche ausgebildeter steilförmiger Arbeitsspalt besonders zweckmäßig ist. Mit einem flachförmigen Arbeitsspalt bzw. einem flachen Substanzkeil wird ein relativ großer Druck auf die Substanz ausgeübt, so daß die Eindringtiefe in ein Substrat entsprechend groß ist. Mit einem steilförmigen Arbeitsspalt ist ein relativ großer Substanzraum erreicht, wobei in einem solchen Fall der Druck auf die Substanz relativ gering ist. Jeweils ein flachförmiger Arbeitsspalt bzw. ein steilförmiger Arbeitsspalt lassen sich durch die Schwenkbewegung des Rakelelements kontinuierlich und - falls gewünscht - nur geringfügig ändern. Besonders zweckmäßig kann es aber auch sein, einem flachförmigen Arbeitsspalt einen relativ steilförmigen Arbeitsspalt vorzuordnen, wobei das Rakelelement für diese Ausgestaltung zwei geeignet ausgerichtete Profilflächen aufweist.The application result can be influenced in a particularly favorable manner with the inflatable distance movement of the doctor element, in that the doctor element has at least one doctor axis or profile surface that is parallel to the application surface and has a working gap that tapers or narrows in the direction of the area of a doctor pressure line and / or or trains order material room. The working gap or the order material space can be changed to a large extent, especially during machine operation. For certain applications, it is particularly expedient that a flat-shaped working gap is formed with the squeegee / profile surface, while a steep-shaped working gap formed with the squeegee / profile surface is particularly expedient for other applications. A relatively large pressure is exerted on the substance with a flat working gap or a flat substance wedge, so that the depth of penetration into a substrate is correspondingly large. A relatively large substance space is achieved with a steep working gap, in which case the pressure on the substance is relatively low. A flat-shaped working gap or a steep-shaped working gap can be changed continuously and - if desired - only slightly by the pivoting movement of the doctor element. However, it can also be particularly expedient to arrange a relatively steep working gap in front of a flat-shaped working gap, the doctor element having two suitably oriented profile surfaces for this configuration.

Teile des Rakelelements können eine Streichrakel und/oder Rollrakel aufweisen. Dabei ist es vorteilhaft, daß das Rakelelement als eine insbesondere wenigstens teilweise aus Kunststoff bestehende Profilleiste ausgebildet ist, in oder an der eine Streichrakel und/oder Rollrakel mittels einer Aufnahme gelagert ist. Hinsichtlich einer sehr vorteilhaften Beweglichkeit bzw. Elastizität einer Streichrakelklinge ist vorgesehen, daß die Streichrakel in von der Auftragsfläche abgewandter Richtung ausweichlich ist, wobei insbesondere die Profilleiste auf der der Auftragsfläche abgewandten Seite derart freigeschnitten ist, daß auf der Rückseite der Streichrakel ein Rezeß gebildet ist.Parts of the doctor element can have a doctor blade and / or roller doctor blade. It is advantageous that the doctor element is designed as a profile strip, in particular at least partially made of plastic, in or on which a doctor blade and / or doctor blade is mounted by means of a receptacle is. With regard to a very advantageous mobility or elasticity of a doctor blade, it is provided that the doctor blade is evasive in the direction facing away from the application surface, the profile strip in particular being cut free on the side facing away from the application surface in such a way that a recess is formed on the back of the doctor blade.

Eine sehr vorteilhafte Ausgestaltung besteht darin, daß die Profilleiste mit einer Rollrakel integriert ist, indem diese in einer Aufnahme der Profilleiste freilaufend vorgesehen ist. Bei dieser Gestaltung erreicht man wesentliche Vorteile dadurch, daß die Rollrakel durch die Kraft einer in einer längsachsenparallelen Längsachse der Profilleiste angeordneten Magneteinrichtung, die in der Profilleistenerstreckung oder -achse einen Permanentmagneten umfassen kann, in einer Aufnahme gegen Gleitfläche oder -belag frei laufend gelagert ist. Insbesondere bilden so Profilleiste und Rakelrolle eine Handhabungseinheit, die gemeinsam in eine Druckvorrichtung eingebaut bzw. aus dieser herausgenommen und auch als Einheit gereinigt werden kann. Der an der Gleitfläche oder dem Gleitbelag anliegende Scheitelbereich der Rakelrolle bildet zugleich eine Dichtleiste, so daß keine Substanz in den Bereich hinter die Rakelrolle gelangen kann.A very advantageous embodiment consists in the fact that the profile strip is integrated with a roller doctor blade, in that it is provided free-running in a receptacle of the profile strip. With this design, significant advantages are achieved in that the roller doctor blade is freely supported in a receptacle against the sliding surface or coating by the force of a magnetic device arranged in a longitudinal axis parallel to the longitudinal axis of the profile strip, which can comprise a permanent magnet in the profile strip extension or axis. In particular, the profile strip and the doctor blade roll form a handling unit which can be installed in or removed from a printing device and also cleaned as a unit. The apex area of the doctor roller lying against the sliding surface or the sliding coating also forms a sealing strip, so that no substance can get into the area behind the doctor roller.

Hinsichtlich einer besonders guten Anpreßbarkeit des Rakelelements bzw. der Profilleiste, also einer guten Anpreßbarkeit einer Rakellinie auf das Auftragsmaterial entlang der Rakelerstreckung bzw. der Auftragsbreite besteht eine sehr vorteilhafte Ausgestaltung darin, daß das Rakelelement bzw. die Profilleiste mindestens ein insbesondere durchgängiges, vorteilhaft auch der Magnetlagerung einer Rakelrolle in der Profilleiste dienendes Tragelement mit einer für die Rakelanpressung vorgesehenen Masse umfaßt. Es ist vorteilhaft, daß in die Profilleiste ein Tragelement aus magnetisierbarem Material wie Stahl od.dgl. eingebettet ist, so daß eine Rakel mittels einer unter der Auftragsfläche angeordneten Magneteinrichtung magnetisch anpreßbar ist. Insbesondere eine Rollrakel kann mit relativ kleinem Durchmesser ausgeführt sein, da die Profilleiste mit der von ihr getragenen Rollrakel bereits mittels des insbesondere balkenförmigen Tragelements magnetisch oder/und des Eisengewichts des Tragelements oder des Profilleistes anziehbar bzw. anpreßbar ist.With regard to a particularly good contact pressure of the squeegee element or the profile bar, i.e. a good contact pressure of a squeegee line onto the application material along the squeegee extension or the application width, there is a very advantageous embodiment in that the squeegee element or the profile bar has at least one particularly continuous, advantageously also the Magnetic bearing of a doctor roll in the profile bar serving supporting element with a mass provided for the doctor pressure. It is beneficial that in the profile bar a support member made of magnetizable material such as steel or the like. is embedded, so that a doctor blade can be magnetically pressed by means of a magnetic device arranged under the application surface. In particular, a doctor blade can be designed with a relatively small diameter, since the profile strip with the doctor blade carried by it can already be magnetically attracted or pressed by means of the beam-shaped support element in particular and / or the iron weight of the support element or the profile strip.

Eine Ausgestaltung der Erfindung besteht darin, daß der Abstand des Lagers zu der Auftragsfläche durch eine zu dieser im wesentlichen senkrechte Verstellung, durch eine Verschwenkung des Lagers und/oder Führung des Lagers entlang einer Kurvenbahn veränderbar ist. Eine senkrechte Verstellung wird sehr vorteilhaft dadurch erreicht, daß das Lager das Rakelelement lagernde, seitlich der Auftragsfläche angeordnete, zu dieser Höhenlage-veränderbare Halterungen umfaßt. Die Verschwenkung des Lagers erfolgt vorteilhaft um eine längsparallele Achse, die in bezug auf das Lager auf der Seite der Auftragsfläche liegt. Damit kann eine Rakelanpreßlinie bei Absenken des Lagers bzw. Abstandsverkleinerung entweder gegen oder in Laufrichtung einer Substratbahn verschoben werden. Zur gezielten Herbeiführung einer Ortsveränderbarkeit des Rakelelements bzw. einer Rakelanpreßlinie quer zur Substratlaufrichtung kann aber auch eine Kulissenführung des Lagers entlang einer Kurvenbahn vorgesehen sein, mit der das Lager zugleich absenkbar bzw. anhebbar ist. Eine weitere Ausgestaltung besteht darin, daß das abstandsveränderbar einstellbare Lager im wesentlichen parallel zu der Auftragsfläche quer zur Rakelerstreckung lageveränderbar angeordnet ist. Zudem kann es zweckmäßig sein, wenigstens einige der genannten Lagerverstellmöglichkeiten hinsichtlich Bewegung in mehrere Koordinatenrichtungen miteinander zu kombinieren.One embodiment of the invention is that the distance of the bearing from the application surface can be changed by an adjustment that is essentially perpendicular to the latter, by pivoting the bearing and / or guiding the bearing along a curved path. A vertical adjustment is very advantageously achieved in that the bearing comprises the squeegee bearing, laterally arranged on the application surface, to this height-variable holders. The pivoting of the bearing is advantageously carried out about a longitudinally parallel axis, which lies on the side of the application surface with respect to the bearing. A doctor pressure line can thus be displaced either against or in the direction of travel of a substrate web when the bearing is lowered or the distance is reduced. In order to bring about a changeability of the squeegee element or a squeegee pressing line transversely to the substrate running direction, a guide of the bearing along a curved path can also be provided, with which the bearing can be lowered or raised at the same time. A further embodiment consists in that the distance-adjustable adjustable bearing is arranged such that it can be changed substantially parallel to the application surface transversely to the doctor blade extension. In addition, it can be expedient to combine at least some of the bearing adjustment options mentioned with regard to movement in several coordinate directions.

Die Schwenk-Längsachse des Rakelelements kann gegenüber dem Schwerpunkt bzw. der Schwerpunktlinie des Rakelelements derart versetzt angeordnet sein, daß es entweder rechts-  oder linksherum schwenkbar ist.The pivoting longitudinal axis of the doctor element can be arranged offset with respect to the center of gravity or the center of gravity of the doctor element in such a way that it can be pivoted either to the right or to the left.

Es ist zweckmäßig, daß das Halteelement so unter einem Winkel von dem Lager getragen ist, daß die Rakelanpreßlinie bei Lagerabstandsveränderung im Bereich unter dem Lager, insbesondere im Bereich unter einem in das Lager eingelegten, mit dem Halteelement unter dem Winkel festverbundenen Tragholm liegen bleibt.It is expedient that the holding element is carried at an angle by the bearing in such a way that the squeegee contact line remains in the area under the bearing, in particular in the area under an inserted in the bearing, with the holding element firmly connected to the holding element at the angle when the bearing distance changes.

Um das Rakelelement nach Wahl links- oder rechtsherum schwenkbeweglich zu lagern und/oder um das Schwenkmaß voreinzustellen, ist es besonders zweckmäßig, daß das Rakelelement mehrere unterschiedlich zu der Schwerpunktlinie versetzte, wahlweise verwendbare Anschlußelemente aufweist. Vorzugsweise ist ein Anschlußelement in Form eines Steck-  oder Klemmelementes ausgebildet, mit dem eine Schwenkverbindung schnell lösbar mit einer entsprechenden Aufnahme an dem Lager bzw. an dem Halteelement herstellbar ist. Insbesondere bei Ausbildung des Rakelelements aus Kunststoff ist es sehr vorteilhaft, daß es mittels eines material-elastischen Gelenks schwenkbeweglich gelagert ist. Es kann aber auch vorteilhaft sein, das Schwenkgelenk in Form eines mechanischen Scharniergelenks od.dgl. auszubilden.In order to mount the squeegee element to the left or to the right in a pivotable manner and / or to preset the pivoting dimension, it is particularly expedient for the squeegee element to have a plurality of connection elements which can be used differently from the center of gravity. A connecting element is preferably designed in the form of a plug-in or clamping element with which a swivel connection can be quickly and easily produced with a corresponding receptacle on the bearing or on the holding element. In particular when the doctor element is made of plastic, it is very advantageous that it is pivotally mounted by means of a material-elastic joint. However, it can also be advantageous to use the swivel joint in the form of a mechanical hinge joint or the like. to train.

Für bestimmte Anwendungsfälle ist es sehr vorteilhaft, daß die Schwenkhalterung des Rakelelements bzw. der Profilleiste und die Anordnung des Lagers so vorgesehen sind, daß bei Abstandsbewegung des Lagers bzw. bei Rakelelement-Schwenkbewegung zugleich quer zur Rakelerstreckung unter Beibehaltung der angepreßten Lage eine Verschiebung des Rakelelements erfolgt. Dabei erfolgt durch die Schwenkbewegung des Rakelelements eine Ortsveränderung der Rakelanpreßlinie quer zur Rakelerstreckung in Richtung der Substratbahn. Dies ist wünschenswert, wenn die Rakelanlage- bzw. Rakelstreich-oder Rollfläche in eine bestimmte Auftragslinie geführt werden soll, z.B. um eine bei Maschinenbetrieb mögliche, nicht gewünschte Verlagerung einer Rakel und/oder einer Schablonenverlagerung oder Formänderung zu begegnen. Mit der erfindungsgemäßen Abstandsveränderbarkeit des Lagers im Zusammenhang mit der daraus abgeleiteten Schwenkbewegung des Rakelelements ist die Lagerveränderung der Rakelauftragslinie auch während des Maschinenbetriebs besonders einfach zu bewerkstelligen. Es kann aber auch eine stets ortsfeste Beibehaltung der Rakelanpreßlinie erwünscht sein. Dies erreicht man insbesondere dadurch, daß bei einer rechtsherum erfolgenden Rakelelementschwenkung in geeignetem Maß eine Lageveränderung des Lagers quer zur Rakelerstreckung in Laufrichtung der Substratbahn erfolgt, während bei einem Schwenken des Rakelelements linksherum ein entsprechender Versatz des Lagers gegen eine Substratbahnlaufrichtung erfolgt.For certain applications, it is very advantageous that the swivel bracket of the doctor element or the profile bar and the arrangement of the bearing are provided such that when the bearing moves at a distance or when the doctor element swivels, the doctor element is displaced transversely to the doctor extension while maintaining the pressed position. The pivoting movement of the doctor element results in a change in location of the doctor pressure line transverse to the doctor extension in the direction of the substrate web. This is desirable if the doctor blade system or doctor blade coating or rolling surface is to be guided into a specific application line, for example in order to counteract an undesired misalignment of a doctor blade and / or a stencil shift or shape change possible during machine operation. With the spacing of the bearing according to the invention in connection with the pivoting movement of the doctor element derived therefrom, the bearing change of the doctor application line is particularly easy to accomplish even during machine operation. However, it may also be desirable to maintain the doctor pressure line in a fixed position at all times. This is achieved in particular by the fact that when the doctor element swings to the right, the position of the bearing is changed transversely to the doctor extension in the running direction of the substrate web, while when the doctor element swivels to the left there is a corresponding offset of the bearing against a substrate web running direction.

Das mit der erfindungsgemäßen Schwenklagerung vorgesehene Rakelelement eignet sich neben der bereits erwähnten magnetischen Möglichkeit der Anpressung in Richtung auf das Substrat besonders gut auch für mechanische, hydraulische, und/oder pneumatische Mittel umfassende Anpreßeinrichtungen.The doctor element provided with the swivel bearing according to the invention is, in addition to the already mentioned magnetic possibility of pressing in the direction of the substrate, particularly well suited for pressing devices comprising mechanical, hydraulic and / or pneumatic means.

Weitere Zweckmäßigkeiten, Ausgestaltungen und Ausführungsbeispiele der Erfindung gehen aus der im folgenden beschriebenen schematischen Zeichnung hervor. Es zeigen jeweils in Seitenansicht und Schnittdarstellung

Fig. 1
eine erfindungsgemäße Rakeleinrichtung mit einem Magnetstreichgerät,
Fig. 2
eine erfindungsgemäße Rakeleinrichtung mit einer Magnetrollrakel,
Fig. 3 bis 5
erfindungsgemäße Rakeleinrichtungen mit verschiedenen Schwenkanlenkungen einer Profilleiste,
Fig. 6
ein Rakelelement mit magnetisierbarem Tragelement und damit permanentmagnetisch gelagerter Rollrakel,
Fig. 7
ein Rakelelement mit Streichrakel und magnetisierbarem Tragelement und
Fig. 8 und 9
erfindungsgemäße Rakeleinrichtungen mit hydraulisch anpreßbaren Streichgeräten.
Further expediencies, refinements and exemplary embodiments of the invention emerge from the schematic drawing described below. They each show a side view and a sectional view
Fig. 1
a doctor device according to the invention with a magnetic coating device,
Fig. 2
a doctor device according to the invention with a magnetic roller doctor,
3 to 5
squeegee devices according to the invention with different swivel articulations of a profile strip,
Fig. 6
a squeegee element with a magnetizable support element and thus a permanent-magnet roller squeegee,
Fig. 7
a doctor element with a doctor blade and magnetizable support element and
8 and 9
Doctor devices according to the invention with hydraulically pressed coating devices.

In den Fig. 1 bis 9 ist jeweils ein Rakelgerät 3 in einer Maschine für eine Rundschablonen-Auftragung dargestellt. Jedes Rakelgerät 3 erstreckt sich in einer Rundschablone 7. Zwischen dieser und einer Druckdecke 8 liegt eine die Substrat- oder Auftragsfläche 4 bildende Warenbahn, die beim Druckbetrieb mittels der Druckdecke 8 in Laufrichtung L bewegt und dabei durch die Anpressung einer Rakel 301, 302 gegen die Schablone 7 durch deren Muster mit einer in Laufrichtung L vor einer Rakelanpreßlinie 36 liegenden Substanz 5 bedruckt wird.1 to 9 each show a doctor blade device 3 in a machine for a circular stencil application. Each squeegee device 3 extends in a circular stencil 7. Between this and a printing blanket 8 is a web forming the substrate or application surface 4, which moves during printing operation by means of the printing blanket 8 in the running direction L and thereby by pressing a squeegee 301, 302 against the Stencil 7 is printed by its pattern with a substance 5 lying in the running direction L in front of a doctor pressure line 36.

Jedes Rakelgerät 3 umfaßt ein eine Rakel 301 bzw. 302 lagerndes Rakelelement 30, ein Halteelement 33 sowie einen Tragholm 38, der zweckmäßig ein nicht dargestelltes Substanzzufuhrrohr bilden oder in seinem Inneren tragen kann.Each squeegee device 3 comprises a squeegee element 30 which supports a squeegee 301 or 302, a holding element 33 and a carrying bar 38 which can expediently form a substance feed tube (not shown) or carry it inside.

Das Halteelement 33 ist unter einem Winkel W fest mit dem Tragholm 38 z.B. mittels einer Schraub- oder Schweißverbindung verbunden. Um eine durch die Erstreckung einer Rakel 301, 302 bestimmte Längsachse 320 ist das Rakelelement 30 im Bereich über der Auftragsfläche 4 schwenkbeweglich an das Halteelement 33 angelenkt. Dieses ist vorzugsweise in Form einer Halteleiste, eines Halteprofils od.dgl. ausgebildet. Es ist so geformt und mit dem Tragholm 38 verbunden, daß sich das Rakelelement 30 im wesentlichen unterhalb des Tragholms 38 befindet, wobei die Rakellinie 36 im Bereich der Schnittlinie der mit der Warenbahn 4 senkrechten achsenparallelen Symmetrieebene des Lagerholms 38 zu liegen kommt. Das Rakelelement 30 ist jeweils durch Veränderung des Abstandes A des Tragholms 38, der dem Abstand eines den Tragholm 38 lagernden Lagers 2 entspricht, schwenkbar.The holding element 33 is fixed at an angle W to the support bar 38 e.g. connected by means of a screw or welded connection. About a longitudinal axis 320 determined by the extension of a squeegee 301, 302, the squeegee element 30 is articulated to the holding element 33 in the region above the application surface 4. This is preferably in the form of a holding strip, a holding profile or the like. educated. It is shaped and connected to the support bar 38 in such a way that the doctor element 30 is located substantially below the support bar 38, the doctor line 36 coming to lie in the region of the intersection of the plane of symmetry of the bearing bar 38 which is perpendicular to the web 4 and parallel to the axis. The doctor element 30 can be pivoted in each case by changing the distance A of the support bar 38, which corresponds to the distance of a bearing 2 supporting the support bar 38.

Das Lager 2, das in jedem Fall Höhenlage veränderbar bzw. den Abstand A kontinuierlich verändernd einstellbar ist, ist in Fig. 1, 2, 4, 8 und 9 dargestellt. Gemäß Fig. 1, 2, 8 und 9 umfaßt das Lager 2 als Lagerbrillen ausgebildete Halterungen 21, in die der Tragholm 38 eingelegt ist. Dabei sind die Lagerungen 21 in einer nicht näher dargestellten Auftragungsmaschine oder -vorrichtung seitlich der Warenbahn 4 angeordnet, so daß sich der Tragholm 38 frei über die Auftragsfläche 4 bzw. Warenbreite erstreckt. Die Halterungen 21 sind mittels einer Stativführung 22 stufenlos, insbesondere elektromotorisch Höhenlage-veränderbar.The bearing 2, which can be changed in each case at an altitude or the distance A can be changed continuously, is shown in FIGS. 1, 2, 4, 8 and 9. 1, 2, 8 and 9, the bearing 2 comprises brackets 21 which are designed as bearing glasses and into which the carrying bar 38 is inserted. The bearings 21 are arranged in an application machine or device (not shown in detail) to the side of the web 4, so that the support bar 38 extends freely over the application surface 4 or width of the goods. The brackets 21 are steplessly changeable by means of a tripod guide 22, in particular height adjustment by an electric motor.

In Fig. 1 bis 7 ist das Rakelelement 30 als parallel zu der Längs- bzw. Gelenkachse 320 sich erstreckende Profilleiste 31 ausgebildet. Sie besteht wenigstens teilweise aus einem magnetisierbaren Material, oder entlang ihrer Erstreckung ist ein magnetisierbares Tragelement in Form eines Trägers 35 eingebettet, wie dies in Fig. 6 und 7 dargestellt ist.1 to 7, the doctor element 30 is designed as a profile strip 31 which extends parallel to the longitudinal or articulated axis 320. It consists at least partially of a magnetizable material, or a magnetizable support element in the form of a carrier 35 is embedded along its extent, as shown in FIGS. 6 and 7.

Damit ist die Profilleiste 31 entlang ihrer Erstreckung gleichmäßig in Richtung auf die Druckdecke 8 mittels eines unter dieser angeordneten Magnetvorrichtung 6 magnetisch anziehbar. Eine besondere Maßnahme besteht in der Lagerung einer Rakel 301, 302 in der Profilleiste. So zeigen Fig. 1 und 7 eine Streichrakel 301, die im unteren der Auftragsfläche 4 zugewandten Bereich der Profilleiste gelagert ist. An der Unterseite der Profilleiste 31 ist eine der Auftragsfläche 4 zugewandte, längsachsenparallele Rakel- oder Profilfläche 310 ausgebildet, die einen im wesentlichen in Richtung auf den Bereich der Rakelanpressungslinie 36 sich keilförmig verjüngenden oder sich verengenden Arbeitsspalt r und damit einen Auftragsmaterialraum 51 ausbildet.The profile strip 31 can thus be magnetically attracted uniformly along its extension in the direction of the printing blanket 8 by means of a magnetic device 6 arranged beneath it. A special measure consists in the storage of a doctor blade 301, 302 in the profile strip. 1 and 7 show a doctor blade 301 which is mounted in the lower region of the profiled strip facing the application surface 4. On the underside of the profile bar 31, a doctor blade or profile surface 310 is formed which faces the application surface 4 and which forms a working gap r which tapers or narrows substantially in the direction of the region of the doctor pressure line 36 and thus forms an application material space 51.

Gemäß der Ausführungsformen Fig. 2 bis 6 ist die Profilleiste 31 in Kombination mit einer Rollrakel 302 gestaltet. Dabei ist die Rollrakel 302 in einer längsachsenparallelen nutförmigen Aufnahme frei laufend geführt, die zur Warenbahn 4 offen ist und die Rollrakel 302 auf der Schablone 7 bzw. relativ zu der Warenbahn 4 rollen läßt. Die Wandungen der Aufnahme 314 sind als Gleitflächen 315 ausgebildet bzw. mit einem geeigneten Gleitbelag versehen. Im Scheitelbereich der Rakelrolle 302 liegt die Profilleiste 31 entlang einer längsachsenparallelen Linie 316 auf der Rollrakel 302 auf bzw. wird auf diese gepreßt. Im Bereich des Rakelrollenscheitelbereichs schwenkt oder kippt die Profilleiste 31 um die sich in diesem Bereich verlagernde Achse 316. Es ist von wesentlicher Bedeutung, daß die auf der Rakelrolle 302 aufliegende Profilleiste 31 damit eine Dichtfunktion ausübt und als Dichtleiste wirkt, mit der der Substanzdruck in dem Raum 51 bzw. die Substanz gegenüber dem in Laufrichtung L hinter der Rollrakel liegenden Bereich abgedichtet ist. Die Rollrakel 302 kann aber auch an einer seitlichen Flanke der nutförmigen Aufnahme 314 entlang einer Linie 317 anliegen.According to the embodiments of FIGS. 2 to 6, the profile strip 31 is designed in combination with a roller doctor blade 302. The doctor blade 302 is freely guided in a groove-shaped receptacle parallel to the longitudinal axis, which is open to the web 4 and allows the doctor blade 302 to roll on the template 7 or relative to the web 4. The walls of the receptacle 314 are designed as sliding surfaces 315 or are provided with a suitable sliding coating. In the apex region of the doctor blade roller 302, the profile strip 31 lies on the roller doctor blade 302 along a line 316 parallel to the longitudinal axis or is pressed onto the latter. In the area of the doctor roller apex region, the profile bar 31 pivots or tilts about the axis 316 which is displaced in this area. It is essential that the profile bar 31 resting on the doctor roller 302 thus exerts a sealing function and acts as a sealing bar with which the substance pressure in the Room 51 or the substance is sealed off from the area lying behind the roller doctor blade in the running direction L. The roller doctor blade 302 can, however, also bear against a lateral flank of the groove-shaped receptacle 314 along a line 317.

Diese beiden Möglichkeiten sind in Fig. 4 und 5 dargestellt. Damit erreicht man zu der Scheitelanlage 316 eine zusätzliche Abdichtung.These two possibilities are shown in FIGS. 4 and 5. This provides an additional seal for the crown system 316.

Das Ausführungsbeispiel gemäß Fig. 6 stellt eine sehr vorteilhafte magnetische Lagerung der Rollrakel 302 mittels eines längsachsenparallelen, insbesondere balkenförmigen, in die Profilleiste eingebetteten Permanentmagnetens dar. So läßt sich die Profilleiste 31 während des Aus- und Einbaus als einheitliches, quasi einteiliges Bauelement mit der Rollrakel 302 handhaben. Die Rakelrolle 302 besteht aus einem magnetisierbaren Material und wird mittels des Magneten 340 in der Aufnahme gegen die Gleitfläche 315 gehalten. Diese trennt die Rakelrolle räumlich von dem Magneten 340. Dem über die Rakelerstreckung liegenden Permanentmagnetstab 340 kommt eine Doppelfunktion zu. Außerhalb des Maschinenbetriebszustandes wirkt er infolge seiner Permanentmagnetkraft als Rakelrollen-Haltestab oder -balken, während er im Betrieb der Maschine als magnetisierbare, von der Magnetvorrichtung 6 anziehbare Masse zur Ausübung der Profilleisten- bzw. Rakelanpressung dient.The embodiment according to FIG. 6 represents a very advantageous magnetic mounting of the doctor blade 302 by means of a permanent magnet, in particular bar-shaped, embedded in the profile strip. Thus, the profile strip 31 can be removed as a single, quasi one-piece component with the doctor blade during removal and installation Handle 302. The doctor roller 302 is made of a magnetizable material and is held in the receptacle against the sliding surface 315 by means of the magnet 340. This spatially separates the doctor roller from the magnet 340. The permanent magnet rod 340 lying over the doctor extension has a double function. Outside of the machine operating state, due to its permanent magnetic force, it acts as a squeegee roller holding rod or bar, while during operation of the machine it serves as a magnetizable mass which can be attracted by the magnetic device 6 to exert profile strip or squeegee pressure.

Die in Fig. 3 bis 7 dargestellte Profilleiste 31 weist zusätzlich zu der oben beschriebenen Profilfläche 310 eine entsprechend über die Rakelerstreckung sich erstreckende, der Auftragsfläche 4 zugewandte Profilfläche 311 auf, die zwischen der Rollrakel 302 und der Profilfläche 310 angeordnet ist. Sie bildet unmittelbar vor der Rakelrolle 302 einen relativ flachen und kurzen Arbeitsspalt, während mit der Profilfläche 310 ein relativ steilförmiger Substanzraum 51′ ausgebildet ist. Durch die Kombination der beiden Profilflächen 310, 311 ist erreicht, daß die Profilleiste 31 unmittelbar vor der Rakelrolle 302 mittels des Spalts r die eigentliche Substanzauftragungsfunktion leistet, während Größe und Form der Substanz vor der Rakelrolle 302 im wesentlichen durch Veränderung des keilförmigen Stauraumes 51' einstellbar sind. Ganz allgemein ist mit einem flachen Arbeitsspalt unmittelbar vor der Rakelrolle 302 erreicht, daß damit im wesentlichen die Auftragsfunktion des Rakelelements 31 ausgeübt wird, während die Rakelrolle 302 entlang der Rakellinie 36 gegen Substanz abdichtet und insbesondere die Schablone 7 sauber rakelt. Mit der Kombination einer bzw. mehrerer Profilleistenflächen mit der in der Profilleiste gelagerten Rakelrolle 302 ist unter Steuerung der Schwenkposition der Profilleiste 31 und damit der Anstellwinkel der Profilflächen auf sehr wirksame Weise erreicht, die Auftragungswirkung von einer überwiegenden Rollrakelwirkung zu einer Streichrakelwirkung bzw. umgekehrt insbesondere während des Maschinenbetriebs feinwirkend einzustellen.The profile strip 31 shown in FIGS. 3 to 7 has, in addition to the profile surface 310 described above, a profile surface 311 which extends over the doctor blade extension and faces the application surface 4 and is arranged between the roller doctor blade 302 and the profile surface 310. It forms a relatively flat and short working gap directly in front of the doctor roller 302, while a relatively steep substance space 51 'is formed with the profile surface 310. The combination of the two profile surfaces 310, 311 ensures that the profile strip 31 performs the actual substance application function directly in front of the doctor roller 302 by means of the gap r, while The size and shape of the substance in front of the doctor roller 302 can be adjusted essentially by changing the wedge-shaped storage space 51 '. In general it is achieved with a flat working gap directly in front of the doctor roller 302 that the application function of the doctor element 31 is essentially carried out, while the doctor roller 302 seals against substance along the doctor line 36 and in particular the doctor blade 7 cleanly doctored. With the combination of one or more profiled strip surfaces with the doctor roller 302 mounted in the profiled strip, under control of the pivoting position of the profiled strip 31 and thus the angle of attack of the profiled surfaces, the application effect from a predominantly doctor blade effect to a doctor blade effect or vice versa, in particular, is achieved of the machine operation to be fine-tuned.

In Fig. 1 und 2 ist dargestellt, wie bereits eine geringe Höhenlageveränderung des Lagers 2 zu einer beträchtlichen Veränderung der Form und/oder Größe des Stauraumes 51 vor der Rakelanpreßlinie 36 führt. Aus einer gestrichelt gezeichneten Position mit dem Abstand A2 wird das Lager 2 in im wesentlichen senkrechter Richtung a zu der Auftragsfläche 4 auf die Höhe A1 abgesenkt. In Fig. 1 ist das Rakelelement 30, in Laufrichtung L der Warenbahn 4 gesehen, oberhalb der Längsachse 312 angeordnet, so daß die Schwenkbewegung S bei Abstandsverkleinerung linksherum in Richtung s erfolgt. Hingegen ist bei dem Ausführungsbeispiel gemäß Fig. 2 die Gelenkachse 320, in Laufrichtung L gesehen, unterhalb der Längsachse 312 vorgesehen, so daß bei Absenkung des Lagers 2 eine Schwenkbewegung S rechtsherum in Richtung s erfolgt. So kann je nach Bedarf durch Abstandsänderung in Richtung a der Substanzraum 51 bzw. ein Profilflächenneigungswinkel mit der Warenbahn 4 verkleinert bzw. vergrößert werden.1 and 2 show how a slight change in the height of the bearing 2 leads to a considerable change in the shape and / or size of the storage space 51 in front of the doctor pressure line 36. From a position shown in dashed lines with the distance A2, the bearing 2 is lowered to the height A1 in a substantially perpendicular direction a to the application surface 4. In Fig. 1, the doctor element 30, seen in the running direction L of the web 4, is arranged above the longitudinal axis 312, so that the pivoting movement S takes place to the left in the direction s when the distance is reduced. In contrast, in the exemplary embodiment according to FIG. 2, the hinge axis 320, viewed in the running direction L, is provided below the longitudinal axis 312, so that when the bearing 2 is lowered, a pivoting movement S takes place to the right in the direction s. For example, the substance space 51 or a profile surface inclination angle with the web 4 can be reduced or enlarged by changing the distance in the direction a.

Die in Fig. 1 bis 9 dargestellten Profilflächen sind eben ausgebildet. Diese Flächen können aber auch für eine spezielle Beeinflussung des Substanzarbeitsraumes geeignet gekrümmt vorgesehen sein.The profile surfaces shown in Fig. 1 to 9 are flat. However, these surfaces can also be provided so as to be curved in a manner suitable for influencing the substance work space.

Die Höhenlage-gesteuerte Variierbarkeit des Substanzraumes geht besonders deutlich auch aus den Fig. 3 bis 5 hervor. Dort erkennt man, daß die Profilleiste 31 mit der Rollrakel 302 von einer Höhenposition A3 über A2 bis A1 variierbar ist.The height-controlled variability of the substance space is particularly clear from FIGS. 3 to 5. There you can see that the profile strip 31 can be varied with the roller doctor blade 302 from a height position A3 to A2 to A1.

Bei den Ausführungsformen gemäß Fig. 1 und 2 wird die Rakelanpreßlinie 36 bei einer linksherum erfolgenden Schwenkbewegung s in Warenbahnlaufrichtung L versetzt. Entsprechend erfolgt ein Versatz v gegen die Bahnlaufrichtung L bei einer rechtsherum erfolgenden Verschwenkung s. Damit ist durch Änderung des Abstandes A eine gezielte Veränderung der Lage der Anpreßlinie 36 entlang der Warenbahn 4 bzw. entlang der Schablone 7 erreichbar. Dies ist von besonderer Bedeutung, wenn sich Z.B. während eines Maschinenbetriebs die Anlagelinie der Schablone 7 auf der Warenbahn 4 ändert und/oder eine Rakel während des Betriebs ihre Lage verändert. Derartigen Änderungen kann durch die gezielte Verschiebung v begegnet werden.In the embodiments according to FIGS. 1 and 2, the doctor pressure line 36 is displaced in the web running direction L during a swiveling movement s to the left. Correspondingly, there is an offset v against the web running direction L when pivoting s to the right. By changing the distance A, a targeted change in the position of the pressing line 36 along the web 4 or along the template 7 can thus be achieved. This is of particular importance if e.g. During machine operation, the contact line of the template 7 on the web 4 changes and / or a squeegee changes its position during operation. Such changes can be countered by the targeted shift v.

In Fig. 4 ist eine Höhenlageveränderbarkeit für ein nicht näher dargestelltes Lager 2 mit horizontaler Bewegungskomponente dargestellt. Das Lager, das den Tragholm 38 trägt, wird entlang eines Bogens K verschwenkt und/oder auf einer Kurve Z.B. mit Kulissen geführt. Bei Absenken des Lagers in Richtung L1 wird die Gelenkachse 320 gegen die Laufrichtung L versetzt. Da aber andererseits die Rakelanpreßlinie 36 infolge der Schwenkbewegung mit Richtung s der Profilleiste 31 in Warenbahnlaufrichtung L verschoben wird, können die beiden gegenläufigen Bewegungen ausgeglichen werden, so daß die Rollrakel 302 - abhängig von einem geeignet gewählten Krümmungsmaß der Kurve K - gezielt in ihrer mittigen Position über der Magnetvorrichtung 6 gehalten werden kann. Bei einem Absenken des Lagers in Richtung L2 wird der bereits durch die Schwenkbewegung erreichte Versatz der Anpreßlinie 36 in Warenlaufrichtung L verstärkt. Mit einem gezielten Links- oder Rechtsversatz kann auch bestimmt werden, an welcher Flanke der Aufnahme 314 die Rakelrolle zur Anlage kommen soll. Bei dem Ausführungsbeispiel gemäß Fig. 4 ist das Halteelement 33 mit der Scheitellinie des Tragholmes 38 fest verbunden.4 shows a change in altitude for a bearing 2 (not shown in detail) with a horizontal movement component. The bearing, which carries the support beam 38, is pivoted along an arc K and / or guided on a curve ZB with scenes. When the bearing is lowered in the direction of L1, the hinge axis 320 is displaced against the running direction L. However, since, on the other hand, the doctor pressure line 36 is displaced in the web running direction L as a result of the pivoting movement in the direction s of the profile strip 31, the the two opposite movements are compensated for, so that the roller doctor blade 302 - depending on a suitably chosen curvature of the curve K - can be held in a targeted position in its central position above the magnet device 6. When the bearing is lowered in the direction of L2, the offset of the pressure line 36 in the direction of travel L that has already been achieved by the pivoting movement is increased. With a targeted left or right offset, it can also be determined at which flank of the receptacle 314 the doctor roller should come to rest. In the exemplary embodiment according to FIG. 4, the holding element 33 is firmly connected to the apex line of the support bar 38.

In Fig. 5 und 7 ist die Schwenkhalterung 32 des Rakelelements 31 an dem Halteelement 33 mittels eines Scharniergelenks 321 ausgeführt. Gemäß Ausgestaltungen in Fig. 3 und 6 ist ein material-elastisches Gelenk vorgesehen, und in Fig. 4, 8 und 9 sind Klemm-Steckverbindungen 323 ausgebildet. Dabei ist in Fig. 4 ein Anschlußelement 330 vorgesehen, das in eine Klemmschale des Halteelements 33 lösbar eingesetzt ist. Anschlußelemente 330 können vorteilhaft auch an anderen Teilen der Profilleiste angeordnet sein, um deren Schwenkanlenkung nach Wahl vorzunehmen.5 and 7, the swivel mount 32 of the doctor element 31 is carried out on the holding element 33 by means of a hinge joint 321. 3 and 6, a material-elastic joint is provided, and in FIGS. 4, 8 and 9, clamping plug connections 323 are formed. 4, a connecting element 330 is provided, which is detachably inserted into a clamping shell of the holding element 33. Connection elements 330 can advantageously also be arranged on other parts of the profile strip in order to carry out the pivoting of their choice.

Gemäß Fig. 7 ist hinsichtlich einer sehr vorteilhaften Beweglichkeit bzw. Elastizität der Klinge der in der Profilleiste 31 gelagerten Streichrakel 301 an der Profilleiste im Bereich der Rückseite der Streichrakel ein Rezeß 37 gebildet.According to FIG. 7, a recess 37 is formed on the profile bar in the region of the rear side of the coating bar with regard to a very advantageous mobility or elasticity of the blade of the doctor blade 301 mounted in the profile bar 31.

In Fig. 8 und 9 ist eine hydraulisch anpreßbares Rakelelement 30 dargestellt. Zwischen dem Halteelement 33 und der Streichrakel 301 ist ein mit einem Druckmedium P beaufschlagbares, mit elastischer Wandung versehenes Element 39 entlang der Rakelerstreckung vorgesehen, das je nach dem Beaufschlagungsgrad die Schreichrakel 301 gegen die Schablone 7 bzw. die Warenbahn 4 preßt.8 and 9, a hydraulically pressed doctor element 30 is shown. Between the holding element 33 and the doctor blade 301, an element 39 is provided with a pressure medium P and provided with an elastic wall along the doctor blade length, which depending on the degree of exposure presses the doctor blade 301 against the stencil 7 or the web 4.

Die erfindungsgemäße Rakeleinrichtung ist auf die in den Figuren 1 bis 9 dargestellte Anordnung mit horizontal liegender Auftragsfläche 4 nicht beschränkt. Insbesondere bei magnetischer Anpressung der Rakel kann mit der erfindungsgemäßen Rakeleinrichtung sehr vorteilhaft erreicht werden, daß das schwenkbewegliche Rakelelement in bezug auf eine vertikal liegende Auftragsfläche oder eine unter irgendeinem Winkel geneigte Auftragsfläche angeordnet und ausgerichtet ist.The doctor device according to the invention is not limited to the arrangement shown in FIGS. 1 to 9 with the application surface 4 lying horizontally. Particularly when the doctor blade is pressed magnetically, it can be achieved very advantageously with the doctor device according to the invention that the pivotable doctor element is arranged and aligned with respect to a vertical application surface or an application surface inclined at any angle.

BezugszeichenlisteReference symbol list

11
RakeleinrichtungDoctor device
22nd
Lagerwarehouse
2121
Halterungbracket
2222
Führungguide
33rd
RakelgerätSqueegee
3030th
RakelelementDoctor element
301301
StreichrakelSqueegee
302302
RollrakelSqueegee
3131
ProfilleisteProfile bar
310310
Rakel-/ProfilflächeSqueegee / profile surface
311311
Rakel-/ProfilflächeSqueegee / profile surface
312312
LängsachseLongitudinal axis
314314
Aufnahmeadmission
315315
Gleitfläche, -belagSliding surface, lining
316316
AnlagelinieInvestment line
317317
AnlagelinieInvestment line
3232
Schwenkhalterung, GelenkSwivel bracket, joint
320320
GelenkachseHinge axis
321321
ScharniergelenkHinge joint
322322
material-elastisches Gelenkmaterial-elastic joint
323323
Klemm-, SteckverbindungClamp, plug connection
3333
HalteelementHolding element
330330
AnschlußelementConnecting element
340340
PermanentmagnetPermanent magnet
3535
Tragelement, TrägerSupporting element, carrier
3636
RakelanpreßlinieDoctor pressure line
3737
RezeßRecessive
3838
TragholmTragholm
3939
GummiprofilRubber profile
44th
AuftragsflächeOrder area
55
AuftragsmaterialOrder material
5151
AuftragsmaterialraumOrder material room
66
MagnetvorrichtungMagnetic device
77
RundschabloneCircular template
88th
DruckdeckePrinting blanket
AA
Abstanddistance
SS
SchwenkbewegungSwivel motion
LL
LaufrichtungRunning direction
PP
AnpreßdruckContact pressure
WW
Winkelangle
aa
AbstandsverkleinerungDistance reduction
ss
SchwenkrichtungSwivel direction
rr
ArbeitsspaltWorking gap
vv
Verschiebungshift

Claims (23)

  1. Doctor device for the application of material (5), such as optionally foamable substances having differing viscosity, coating substances, lacquers, adhesives, pastes etc. to an application surface (4) (substrate) with a doctor (301, 302) being pressable toward the application surface, the device comprising a doctor member (30), acting with the doctor (301, 302) on the application material (5) and being held by a support beam (38), which is directly mounted in a mount (2) being adjustably displaceable in the spacing (A) with respect to the application surface (4), and the doctor member (30), due to a change in the spacing (A) of the mount, being pivotable about a joint axis (320) of a joint connection, wherein the axis is defined by the extension of the doctor, the joint connection being arranged on the doctor member (30) and connecting the doctor member with the mount (2), characterized in that the device comprises a retaining member (33) in the form of a retaining strip, retaining profile or the like, by which the doctor member (30) is spaced from the mount (2) and which is carried by the support beam (38), and that, by the joint connection having the form of a joint (32, 321, 322, 323), the doctor member (30) is articulated on the retaining element (33) in a manner that the doctor member (30) being pivotable about the joint axis (320) is pressed toward the application surface (4) upon a pressing force acting on the doctor member (30) and due to the pivoting (S) of the doctor member (30) on the retaining element (33).
  2. Doctor device according to claim 1, characterized in that the doctor member (30) has at least one longitudinally axially parallel doctor or profile surface (310, 311) facing the application surface (4) and which forms an operating gap (r) and/or an application material area (51) tapering in wedge-shaped manner in the direction of the vicinity of a doctor pressing line (36).
  3. Doctor device according to claim 2, characterized in that a low-angle shaped operating gap (r) is formed by the doctor/profile surface (310, 311), the gap being changeable by the pivoting movement (S) of the doctor member, in particular up to a wedge angle of approximately zero.
  4. Doctor device according to claim 2, characterized in that a high-angle shaped operating gap (r) is formed by the doctor/profile surface (310, 311), the gap being changeable by the pivoting movement (S) of the doctor/member.
  5. Doctor device according to claims 1 to 4, characterized in that at least parts of the doctor member (30) are constructed as a coating doctor and/or a roll doctor.
  6. Doctor device according to one of the claims 1 to 4, characterized in that the doctor member (30) is constructed as a profile strip (31) and a coating doctor (301) and/or a roll doctor is held in or on the profile strip (31).
  7. Doctor device according to claim 6, characterized in that the coating doctor (301) can give way in the direction remote from the application surface (4), wherein in particular the profile strip (31) is cut free on the side remote from the application surface (4) in such a manner that a recess (37) is formed on the back side of the coating doctor (301).
  8. Doctor device according to claim 6, characterized in that a freely running roll doctor (302) is provided in a receptacle (314) of the profile strip (31).
  9. Doctor device according to claim 8, characterized in that the roll doctor (302) is held in the receptacle (310) in free running manner against a sliding surface or coating (315) of the profile strip (31) by the force of a magnetic device being arranged in an axis (312) which is parallel to the longitudinal axis of the profile strip (31).
  10. Doctor device according to claim 9, characterized in that the magnetic device comprises a permanent magnet (340) arranged along the longitudinal axis (312) of the profile member.
  11. Doctor device according to one of the claims 1 to 10, characterized in that the doctor member (30) or the profile strip (31) comprises at least one member (35), in particular a through support member, extending with the doctor and having a mass serving for the pressing of the doctor.
  12. Doctor device according to claim 11, characterized in that the support member (35) is made from a magnetizable material such as steel or the like, so that a doctor (301, 302) can be magnetically pressed by a magnetic device (6) arranged below the application surface (4).
  13. Doctor device according to one of the claims 1 to 12, characterized in that the spacing (A) of the mount (2) with respect to the application surface (4) can be varied by substantial vertical adjustment with respect to the application surface, by pivoting the mount and/or by guiding the mount along a curved path.
  14. Doctor device according to claim 13, characterized in that the mount (2) is pivotable about an axis parallel to the longitudinal axis of profile strip (31) and which is located with respect to the mount (2), on the side of the application surface.
  15. Doctor device according to one of the claims 1 to 14, characterized in that the mount (2) is arranged in positionally variable manner transversely to the extension of the doctor and parallel to the application surface (4).
  16. Doctor device according to one of the claims 1 to 15, characterized in that the mount (2) comprises bearings (21) carrying the doctor member (30), positioned laterally of the application surface (4) and adjustable with respect to the height above the application surface.
  17. Doctor device according to one of the claims 1 to 16, characterized in that on the doctor member (30) are arranged at least two connecting elements, the doctor member (30), as a function of the used joint connection of the retaining member (33) with one of the connecting elements, can be pivoted to the left or right when a reduction (a) of the spacing (A) appears.
  18. Doctor device according to one of the claims 1 to 17, characterized in that the retaining member (33) is so connected under an angle (W) with a support beam (38) inserted in the mount (2), that the doctor pressing line (36), on changing the spacing of the mount, is located in the area of the intersection line of the axially parallel supportbeam symmetry plane being perpendicular to the application surface (4).
  19. Doctor device according to one of the claims 1 to 18, characterized in that the doctor member (30) comprises at least one connecting element (330), preferably in the form of a plug or clamp element, for the rapidly detachable pivoting connection with the retaining member (33).
  20. Doctor device according to one of the claims 1 to 19, characterized in that the doctor member (31) is pivotable by means of a mechanical or material-elastic hinge (322).
  21. Doctor device according to one of the claims 1 to 20, characterized in that the pivot joint (32) articulating the doctor member (30) and the mount (2) are so arranged that on modifying the spacing (A) of the mount (2) with respect to the application surface (4) or in the case of a pivoting movement (S) of the doctor member (30), simultaneously a displacement (v) of the doctor member (30) results, taking place transversely with respect to the doctor extension while maintaining the pressing state.
  22. Doctor device according to one of the claims 1 to 21, characterized in that the pivot joint (32) articulating the doctor member (30) and the mount (2) are so arranged that on modifying the spacing (A) of the mount (2) with respect to the application surface (4) or in the case of a pivoting movement (S) of the doctor member (30), the pressing line (36) of a doctor (301, 302) is retained without local displacement.
  23. Doctor device according to one of the claims 1 to 22, characterized in that the doctor member (30) is pressable toward the application surface (4) mechanically, by gravitational force, hydraulically and/or pneumatically.
EP87730126A 1987-10-10 1987-10-10 Doctoring device Expired - Lifetime EP0311728B1 (en)

Priority Applications (44)

Application Number Priority Date Filing Date Title
DE8787730126T DE3784723D1 (en) 1987-10-10 1987-10-10 Squeegee device.
EP87730126A EP0311728B1 (en) 1987-10-10 1987-10-10 Doctoring device
AT87730126T ATE86533T1 (en) 1987-10-10 1987-10-10 SQUEEGEE DEVICE.
PCT/EP1988/000431 WO1989003256A1 (en) 1987-10-10 1988-05-18 Blade-coating mechanism
HU883421A HU213082B (en) 1987-10-10 1988-05-18 Squeegee mechanism
JP63504087A JPH03501822A (en) 1987-10-10 1988-05-18 Coating device
EP88107937A EP0311744B1 (en) 1987-10-10 1988-05-18 Coating device
PCT/EP1988/000432 WO1989003257A1 (en) 1987-10-10 1988-05-18 Squeegee mechanism
ES198888107937T ES2035150T3 (en) 1987-10-10 1988-05-18 APPARATUS FOR THE APPLICATION OF COATING MATERIALS.
US07/469,561 US5134958A (en) 1987-10-10 1988-05-18 Doctor apparatus for applying fluid material to a substrate
HU883933A HU209375B (en) 1987-10-10 1988-05-18 Decolourizing device
EP88107938A EP0311745B1 (en) 1987-10-10 1988-05-18 Coating device
EP88107936A EP0311743B1 (en) 1987-10-10 1988-05-18 Squeegee device
EP88107935A EP0311742B1 (en) 1987-10-10 1988-05-18 Coating device
BR888807742A BR8807742A (en) 1987-10-10 1988-05-18 APPLIANCE FOR APPLYING MATERIALS
BR888807241A BR8807241A (en) 1987-10-10 1988-05-18 SQUEEGEE EQUIPMENT FOR THE APPLICATION OF MATERIAL
DE8888107938T DE3878630D1 (en) 1987-10-10 1988-05-18 APPLICATION DEVICE.
DE8888107935T DE3879354D1 (en) 1987-10-10 1988-05-18 Squeegee.
US07/381,680 US4993352A (en) 1987-10-10 1988-05-18 Squeegee device
AT88107935T ATE86890T1 (en) 1987-10-10 1988-05-18 SQUEEGEE.
DE8888107937T DE3874274D1 (en) 1987-10-10 1988-05-18 APPLICATION DEVICE.
BR888807750A BR8807750A (en) 1987-10-10 1988-05-18 APPLIANCE FOR THE APPLICATION OF MATERIALS
PCT/EP1988/000434 WO1989003259A1 (en) 1987-10-10 1988-05-18 Spreading appliance
AU17814/88A AU1781488A (en) 1987-10-10 1988-05-18 Squeegee mechanism
JP63504300A JPH02501540A (en) 1987-10-10 1988-05-18 doctor device
ES198888107935T ES2040775T3 (en) 1987-10-10 1988-05-18 SCRAPER DEVICE.
AU17901/88A AU1790188A (en) 1987-10-10 1988-05-18 Spreading appliance
AU19311/88A AU1931188A (en) 1987-10-10 1988-05-18 Blade-coating mechanism
HU883513A HU207004B (en) 1987-10-10 1988-05-18 Applying device
ES198888107936T ES2028938T3 (en) 1987-10-10 1988-05-18 DISTRIBUTOR REGULATION DEVICE.
AT88107937T ATE80067T1 (en) 1987-10-10 1988-05-18 APPLICATION DEVICE.
AT88107938T ATE85904T1 (en) 1987-10-10 1988-05-18 APPLICATION DEVICE.
AU17221/88A AU1722188A (en) 1987-10-10 1988-05-18 Spreading appliance
PCT/EP1988/000433 WO1989003258A1 (en) 1987-10-10 1988-05-18 Spreading appliance
HU883948A HU207469B (en) 1987-10-10 1988-05-18 Applying device
DE8888107936T DE3866669D1 (en) 1987-10-10 1988-05-18 Squeegee.
JP63504452A JPH03501823A (en) 1987-10-10 1988-05-18 Coating device
JP63504693A JPH02502797A (en) 1987-10-10 1988-05-18 doctor device
BR888807240A BR8807240A (en) 1987-10-10 1988-05-18 SQUEEGEE EQUIPMENT FOR THE APPLICATION OF MATERIAL
AT88107936T ATE69981T1 (en) 1987-10-10 1988-05-18 SQUEEGEE.
US07/469,562 US5156682A (en) 1987-10-10 1988-05-18 Pressing device for doctor having segments linked together
US07/255,604 US4920914A (en) 1987-10-10 1988-10-11 Doctoring installation and doctoring device
US07/364,436 US4998500A (en) 1987-10-10 1989-07-13 Squeegee device
US07/501,258 US5063873A (en) 1987-10-10 1990-03-29 Doctor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87730126A EP0311728B1 (en) 1987-10-10 1987-10-10 Doctoring device

Publications (2)

Publication Number Publication Date
EP0311728A1 EP0311728A1 (en) 1989-04-19
EP0311728B1 true EP0311728B1 (en) 1993-03-10

Family

ID=8198368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730126A Expired - Lifetime EP0311728B1 (en) 1987-10-10 1987-10-10 Doctoring device

Country Status (3)

Country Link
EP (1) EP0311728B1 (en)
AT (1) ATE86533T1 (en)
DE (1) DE3784723D1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5151132A (en) † 1989-01-09 1992-09-29 Johannes Zimmer Arrangement for applying substances to a web of material
AT392743B (en) * 1989-06-13 1991-05-27 Zimmer Johannes METHOD AND DEVICE FOR COATING WITH SUBSTANCES, e.g. WITH ADHESIVE, FOR WASHING AND / OR DRYING e.g. ENDLESS CONVEYOR BELT OR THE LIKE.
AT401480B (en) * 1989-07-06 1996-09-25 Zimmer Johannes SCRAPER FOR APPLICATION OR APPLY AND SCRATCH OR FOR THE DOSED APPLICATION OF FLOWABLE OR FLOWABLE SUBSTANCES
AT392745B (en) * 1989-08-16 1991-05-27 Zimmer Johannes DEVICE AND METHOD FOR SAMPLE AND / OR FULL AREA APPLICATION PROCESSES ON SHORT AND ANY LONG TRACKS
EP0463142B1 (en) * 1990-01-17 1994-04-13 Johannes Zimmer Magnetically pressed doctor blade and doctor blade device, in particular round stencil (sieve cylinder)
US5357857A (en) * 1990-01-17 1994-10-25 Johannes Zimmer Magnetically pressed doctor blade for cylindrical-screen stencil
DE9103571U1 (en) * 1991-03-21 1992-07-23 Zimmer, Johannes, Klagenfurt, Kaernten, At
DE9103570U1 (en) * 1991-03-21 1992-07-23 Zimmer, Johannes, Klagenfurt, Kaernten, At
DE29517098U1 (en) * 1995-10-17 1997-02-13 Zimmer Johannes Application device
AT412452B (en) * 2003-01-20 2005-03-25 Peter Zimmer Keg DEVICE FOR APPLYING COLOR
DE102006051360A1 (en) 2006-10-27 2008-05-21 Khs Ag gluing
CN105689195B (en) * 2016-01-29 2017-12-19 浙江武义张氏包装实业有限公司 Color box protection against the tide size applicator
CN108031619B (en) * 2017-11-28 2020-12-18 徐州宝盈新能源科技有限公司 Coating method capable of removing coating dark marks for lithium battery pole piece
CN108080215B (en) * 2017-12-27 2021-05-14 江苏全锂智能科技有限公司 Coating method of lithium battery pole piece
CN113274940B (en) * 2021-05-21 2023-10-17 福建锐信合成革有限公司 Slurry color mixing device
CN115447275B (en) * 2022-10-14 2023-12-15 青岛嘉泽包装有限公司 Offset press coating unit cavity type scraper capable of transversely moving in series and scraping method thereof
CN115502027B (en) * 2022-10-29 2024-01-23 英卯(上海)机械制造有限公司 Gluing equipment
CN116238239B (en) * 2023-05-12 2023-07-07 福建佶龙机械科技股份有限公司 Double-sided cylinder printing and dyeing machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT296927B (en) * 1967-01-31 1972-03-10 Peter Zimmer Device for applying liquid or pasty materials
FR2125633A5 (en) * 1971-02-15 1972-09-29 Mulhouse Alsacien Const
DE2250092C3 (en) * 1972-10-12 1980-11-20 Kuesters, Eduard, 4150 Krefeld Squeegee device
DE2544784C2 (en) * 1974-10-15 1986-01-23 Johannes Klagenfurt Kärnten Zimmer Squeegee device
AT346801B (en) * 1974-10-24 1978-11-27 Zimmer Johannes Stroke

Also Published As

Publication number Publication date
EP0311728A1 (en) 1989-04-19
DE3784723D1 (en) 1993-04-15
ATE86533T1 (en) 1993-03-15

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