EP0311728B1 - Dispositif de raclage - Google Patents

Dispositif de raclage 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)
English (en)
Other versions
EP0311728A1 (fr
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 EP87730126A priority Critical patent/EP0311728B1/fr
Priority to DE8787730126T priority patent/DE3784723D1/de
Priority to AT87730126T priority patent/ATE86533T1/de
Priority to AU17901/88A priority patent/AU1790188A/en
Priority to ES198888107937T priority patent/ES2035150T3/es
Priority to EP88107937A priority patent/EP0311744B1/fr
Priority to AU17221/88A priority patent/AU1722188A/en
Priority to DE8888107936T priority patent/DE3866669D1/de
Priority to HU883933A priority patent/HU209375B/hu
Priority to DE8888107938T priority patent/DE3878630D1/de
Priority to AT88107937T priority patent/ATE80067T1/de
Priority to JP63504087A priority patent/JPH03501822A/ja
Priority to US07/381,680 priority patent/US4993352A/en
Priority to DE8888107937T priority patent/DE3874274D1/de
Priority to AU19311/88A priority patent/AU1931188A/en
Priority to US07/469,562 priority patent/US5156682A/en
Priority to PCT/EP1988/000433 priority patent/WO1989003258A1/fr
Priority to BR888807240A priority patent/BR8807240A/pt
Priority to PCT/EP1988/000431 priority patent/WO1989003256A1/fr
Priority to AT88107935T priority patent/ATE86890T1/de
Priority to PCT/EP1988/000432 priority patent/WO1989003257A1/fr
Priority to US07/469,561 priority patent/US5134958A/en
Priority to EP88107935A priority patent/EP0311742B1/fr
Priority to ES198888107935T priority patent/ES2040775T3/es
Priority to HU883421A priority patent/HU213082B/hu
Priority to JP63504693A priority patent/JPH02502797A/ja
Priority to EP88107936A priority patent/EP0311743B1/fr
Priority to HU883948A priority patent/HU207469B/hu
Priority to BR888807750A priority patent/BR8807750A/pt
Priority to ES198888107936T priority patent/ES2028938T3/es
Priority to AT88107936T priority patent/ATE69981T1/de
Priority to BR888807241A priority patent/BR8807241A/pt
Priority to JP63504300A priority patent/JPH02501540A/ja
Priority to EP88107938A priority patent/EP0311745B1/fr
Priority to PCT/EP1988/000434 priority patent/WO1989003259A1/fr
Priority to DE8888107935T priority patent/DE3879354D1/de
Priority to AU17814/88A priority patent/AU1781488A/en
Priority to HU883513A priority patent/HU207004B/hu
Priority to BR888807742A priority patent/BR8807742A/pt
Priority to JP63504452A priority patent/JPH03501823A/ja
Priority to AT88107938T priority patent/ATE85904T1/de
Priority to US07/255,604 priority patent/US4920914A/en
Publication of EP0311728A1 publication Critical patent/EP0311728A1/fr
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/fr
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.

Landscapes

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

Claims (23)

  1. Dispositif racleur, destiné à appliquer un matériau (35), tel par exemple que des substances expansibles ayant différentes viscosités, des produits de revêtement, des peintures ou vernis, des adhésifs, des pâtes ou analogues, sur une surface de subjectile (4) (substrat), à l'aide d'une racle (301, 302) pouvant être pressée sur cette dernière, le dispositif comportant un élément racleur (30), qui à l'aide de la racle (301, 302) agit sur le matériau à appliquer (5), élément racleur maintenu par un montant porteur (38), lequel est logé directement un support (2), dont on peut faire varier la position, et qui peut être ajusté à une distance (A) par rapport à la surface de subjectile (4), et qui, du fait de la modification de la distance (A) au support, peut subir un déplacement en pivotement autour d'un axe d'articulation (320), défini par l'étendue de la racle, d'une liaison articulée disposée contre l'élément racleur (30) et reliant ce dernier au support (2), caractérisé en ce que le dispositif comporte un élément de retenue (30), ayant la forme d'une baguette de retenue, d'un profilé de retenue ou analogue, qui assure l'écartement entre l'élément racleur (30) et le support (2), élément de retenue qui est porté par le montant porteur (38), et en ce que l'élément racleur (30) est, à l'aide de la liaison articulée, sous la forme d'une articulation (32, 321, 322, 323), articulé à l'élément de retenue (33) de façon que l'élément racleur (30), pouvant pivoter autour de l'axe d'articulation (320), soit, quand une force d'appui est exercée sur ce dernier, et du fait de l'articulation en pivotement (S) à l'élément de retenue (33), pressé contre la surface de subjectile (4).
  2. Dispositif racleur selon la revendication 1, caractérisé en ce que l'élément racleur (30) comporte au moins une surface de racle ou profilée (310, 311), parallèle à l'axe longitudinal et dirigée vers la surface de subjectile (4), surface de racle ou profilée qui forme une fente de travail (r) et/ou un espace de matériau à appliquer (51), qui se rétrécit en forme de coin ou s'effile dans la direction allant vers la zone d'une ligne de pression de racle (36).
  3. Dispositif racleur selon la revendication 2, caractérisé en ce que la surface de racle/profilée (310, 311) forme une fente de travail plate (r), laquelle peut être modifiée, par le déplacement en pivotement (S) de l'élément racleur, en particulier jusqu'à un angle de coin proche de zéro.
  4. Dispositif racleur selon la revendication 2, caractérisé en ce que la surface de racle/profilée (310, 311) forme une fente de travail (r) à forte pente, pouvent être modifiée par le déplacement en pivotement (S) de l'élément racleur.
  5. Dispositif racleur selon l'une des revendications 1 à 4, caractérisé en ce qu'au moins des parties de l'élément racleur (30) sont conçues comme une racle à enduire et/ou une racle à rouleau.
  6. Dispositif racleur selon l'une des revendications 1 à 4, caractérisé en ce que l'élément racleur (30) est conçu comme une baguette profilée (31) et est logé dans ou contre une racle à enduire (301) et/ou une racle à rouleau (302).
  7. Dispositif recleur selon la revendication 6, caractérisé en ce que la racle à enduire (301) peut s'écarter dans la direction opposée à la surface de subjectile (4), auquel cas en particulier la baguette profilée (31) est dégagée sur le côté opposé à la surface de subjectile (4) de façon qu'il se forme un évidement (37) sur le côté arrière de la racle à enduire (301).
  8. Dispositif racleur selon la revendication 6, caractérisé en ce qu'on prévoit dans un logement (314) de la baguette profilée (31) une racle à rouleau (302) à roulement libre.
  9. Dispositif racleur selon la revendication 8, caractérisé en ce que la racle à rouleau (302) est logée dans le logement (314), en roulement libre par rapport à la surface ou à la garniture de glissement (315) de la baguette profilée (31), sous l'effet de la force d'un dispositif magnétique installé dans un axe longitudinal (312), parallèle à l'axe longitudinal, de la baguette profilée (31).
  10. Dispositif racleur selon la revendication 9, caractérisé en ce que le dispositif magnétique comporte un aimant permanent (340) disposé le long de l'axe longitudinal (312) de la baguette profilée.
  11. Dispositif racleur selon l'une des revendications 1 à 10, caractérisé en ce que l'élément racleur (30) ou la baguette profilée (31) comporte dans l'étendue de la racle au moins un élément porteur (35) en particulier continu, avec une masse servant à l'appui de la racle.
  12. Dispositif racleur selon la revendication 11, caractérisé en ce que l'élément porteur (35) est en un matériau magnétisable tel que l'acier ou analogue, de sorte qu'une racle (301, 302) peut être pressée d'une manière magnétique à l'aide d'un dispositif magnétique (6) installé sous la surface de subjectile (4).
  13. Dispositif racleur selon l'une des revendications 1 à 12, caractérisé en ce que la distance (A) du support (2) à la surface de subjectile (4) peut être modifiée par un déplacement essentiellement perpendiculaire à la surface de subjectile, par un pivotement du support et/ou un guidage du support le long d'une trajectoire incurvée.
  14. Dispositif racleur selon la revendication 13, caractérisé en ce que le pivotement du support (2) a lieu autour d'un axe parallèle à l'axe longitudinal, lequel axe se trouve, par rapport au support (2), sur le côté de la surface de subjectile (4).
  15. Dispositif racleur selon l'une des revendications 1 à 14, caractérisé en ce que le support (2) peut subir un changement de position, d'une manière essentiellement parallèle à la surface de subjectile (4), perpendiculairement à l'étendue de la racle.
  16. Dispositif racleur selon l'une des revendications 1 à 15, caractérisé en ce que le support (2) comporte le palier (21),sur lequel pressé l'élément racleur (30), qui est disposé latéralement par rapport à la surface de subjectile (4) et est réglable en hauteur par rapport à cette dernière.
  17. Dispositif racleur selon l'une des revendications 1 à 16, caractérisé en ce qu'au moins deux éléments de raccordement sont disposés contre l'élément racleur (30), l'élément racleur (30) pivotant vers la gauche ou vers la droite, lors de la diminution (a) de la distance (A), selon le choix de la liaison articulée de l'élément de retenue (33) et de l'un des éléments de raccordement.
  18. Dispositif racleur selon l'une des revendications 1 à 17, caractérisé en ce que l'élément de retenue (33) est, selon un angle (W), relié à un montant porteur (38) installé dans le support (2), de façon que la ligne de pression de racle (36), lors d'une modification de la position du palier vienne dans la zone de la ligne d'intersection du plan de symétrie, parallèle à l'axe, perpendiculaire à la surface de subjectile (4), du montant porteur (38).
  19. Dispositif racleur selon l'une des revendications 1 à 18, caractérisé en ce que l'élément racleur (30) comporte au moins un élément de raccordement (330), de préférence sous la forme d'un élément enfichable ou de serrage, pour assurer une liaison en pivotement, pouvant être rapidement désaccouplée, avec l'élément de retenue (33).
  20. Dispositif racleur selon l'une des revendications 1 à 19, caractérisé en ce que l'élément racleur (30) est mobile en pivotement à l'aide d'une articulation (322), mécanique ou élastique.
  21. Dispositif racleur selon l'une des revendications 1 à 20, caractérisé en ce que l'articulation en pivotement (32) assurant l'articulation de l'élément racleur (30) et le support (2) sont disposés de façon que, lors d'une modification de la distance (A) entre le support (2) et la surface de subjectile (4), ou lors du déplacement en pivotement (S) de l'élément racleur (30) lui aussi perpendiculairement à l'étendue de la racle, on ait, la position pressée étant conservée, un déplacement (v) de l'élément racleur (30).
  22. Dispositif racleur selon l'une des revendications 1 à 20, caractérisé en ce que l'articulation en pivotement (32) assurant l'articulation de l'élément racleur (30) et le support (2) sont prévus de façon que, en présence d'une modification de la distance (A) entre le support (2) et la surface de subjectile (4) ou dans le cas d'un déplacement en pivotement (S) de l'élément racleur (30), la ligne de pression (36) d'une racle (301, 302) se maintienne sans déplacement spatial.
  23. Dispositif racleur selon l'une des revendications 1 à 22, caractérisé en ce que l'élément racleur peut être pressé dans la direction de la surface de subjectile (4) par un moyen mécanique, sous l'effet de la gravité, par un moyen hydraulique et/ou pneumatique.
EP87730126A 1987-10-10 1987-10-10 Dispositif de raclage Expired - Lifetime EP0311728B1 (fr)

Priority Applications (44)

Application Number Priority Date Filing Date Title
EP87730126A EP0311728B1 (fr) 1987-10-10 1987-10-10 Dispositif de raclage
DE8787730126T DE3784723D1 (de) 1987-10-10 1987-10-10 Rakeleinrichtung.
AT87730126T ATE86533T1 (de) 1987-10-10 1987-10-10 Rakeleinrichtung.
AU17901/88A AU1790188A (en) 1987-10-10 1988-05-18 Spreading appliance
ES198888107937T ES2035150T3 (es) 1987-10-10 1988-05-18 Aparato para la aplicacion de materiales de recubrimiento.
EP88107937A EP0311744B1 (fr) 1987-10-10 1988-05-18 Dispositif d'enduction
AU17221/88A AU1722188A (en) 1987-10-10 1988-05-18 Spreading appliance
DE8888107936T DE3866669D1 (de) 1987-10-10 1988-05-18 Rakelgeraet.
HU883933A HU209375B (en) 1987-10-10 1988-05-18 Decolourizing device
DE8888107938T DE3878630D1 (de) 1987-10-10 1988-05-18 Auftragungsvorrichtung.
AT88107937T ATE80067T1 (de) 1987-10-10 1988-05-18 Auftragungsgeraet.
JP63504087A JPH03501822A (ja) 1987-10-10 1988-05-18 塗着装置
US07/381,680 US4993352A (en) 1987-10-10 1988-05-18 Squeegee device
DE8888107937T DE3874274D1 (de) 1987-10-10 1988-05-18 Auftragungsgeraet.
AU19311/88A AU1931188A (en) 1987-10-10 1988-05-18 Blade-coating mechanism
US07/469,562 US5156682A (en) 1987-10-10 1988-05-18 Pressing device for doctor having segments linked together
PCT/EP1988/000433 WO1989003258A1 (fr) 1987-10-10 1988-05-18 Appareil applicateur
BR888807240A BR8807240A (pt) 1987-10-10 1988-05-18 Equipamento de rodo para a aplicacao de material
PCT/EP1988/000431 WO1989003256A1 (fr) 1987-10-10 1988-05-18 Appareil a raclette
AT88107935T ATE86890T1 (de) 1987-10-10 1988-05-18 Rakelgeraet.
PCT/EP1988/000432 WO1989003257A1 (fr) 1987-10-10 1988-05-18 Raclette
US07/469,561 US5134958A (en) 1987-10-10 1988-05-18 Doctor apparatus for applying fluid material to a substrate
EP88107935A EP0311742B1 (fr) 1987-10-10 1988-05-18 Dispositif de raclage
ES198888107935T ES2040775T3 (es) 1987-10-10 1988-05-18 Aparato rascador.
HU883421A HU213082B (en) 1987-10-10 1988-05-18 Squeegee mechanism
JP63504693A JPH02502797A (ja) 1987-10-10 1988-05-18 ドクター装置
EP88107936A EP0311743B1 (fr) 1987-10-10 1988-05-18 Dispositif de raclage
HU883948A HU207469B (en) 1987-10-10 1988-05-18 Applying device
BR888807750A BR8807750A (pt) 1987-10-10 1988-05-18 Aparelho para a aplicacao de materiais
ES198888107936T ES2028938T3 (es) 1987-10-10 1988-05-18 Dispositivo de regleta distribuidora.
AT88107936T ATE69981T1 (de) 1987-10-10 1988-05-18 Rakelgeraet.
BR888807241A BR8807241A (pt) 1987-10-10 1988-05-18 Equipamento de rodo para a aplicacao de material
JP63504300A JPH02501540A (ja) 1987-10-10 1988-05-18 ドクター装置
EP88107938A EP0311745B1 (fr) 1987-10-10 1988-05-18 Dispositif d'enduction
PCT/EP1988/000434 WO1989003259A1 (fr) 1987-10-10 1988-05-18 Dispositif activateur
DE8888107935T DE3879354D1 (de) 1987-10-10 1988-05-18 Rakelgeraet.
AU17814/88A AU1781488A (en) 1987-10-10 1988-05-18 Squeegee mechanism
HU883513A HU207004B (en) 1987-10-10 1988-05-18 Applying device
BR888807742A BR8807742A (pt) 1987-10-10 1988-05-18 Aparelho para aplicar materiais
JP63504452A JPH03501823A (ja) 1987-10-10 1988-05-18 塗着装置
AT88107938T ATE85904T1 (de) 1987-10-10 1988-05-18 Auftragungsvorrichtung.
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 (fr) 1987-10-10 1987-10-10 Dispositif de raclage

Publications (2)

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

Family

ID=8198368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730126A Expired - Lifetime EP0311728B1 (fr) 1987-10-10 1987-10-10 Dispositif de raclage

Country Status (3)

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

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990007387A2 (fr) † 1989-01-09 1990-07-12 Johannes Zimmer Installation d'application de substances sur une bande de materiau
AT392743B (de) * 1989-06-13 1991-05-27 Zimmer Johannes Verfahren und einrichtung zum beschichten mit substanzen, z.b. mit klebstoff, zum waschen und/oder trocknen eines z.b. endlosen transportbandes od.dgl.
AT401480B (de) * 1989-07-06 1996-09-25 Zimmer Johannes Rakelgerät zum auftragen bzw. auftragen und abrakeln bzw. zum dosierten auftragen fliessfähiger oder streichfähiger substanzen
AT392745B (de) * 1989-08-16 1991-05-27 Zimmer Johannes Einrichtung und verfahren fuer bemusternde und/oder vollflaechige auftragungsprozesse auf kurze und beliebig lange warenbahnen
JPH04503644A (ja) * 1990-01-17 1992-07-02 チンメル，ヨハネス 特に円形型板（シリンダスクリーン）を備えた磁気圧着式ドクタ及びドクタ装置
US5357857A (en) * 1990-01-17 1994-10-25 Johannes Zimmer Magnetically pressed doctor blade for cylindrical-screen stencil
DE9103570U1 (fr) * 1991-03-21 1992-07-23 Zimmer, Johannes, Klagenfurt, Kaernten, At
DE9103571U1 (fr) * 1991-03-21 1992-07-23 Zimmer, Johannes, Klagenfurt, Kaernten, At
DE29517098U1 (de) * 1995-10-17 1997-02-13 Zimmer Johannes Auftragungsvorrichtung
AT412452B (de) * 2003-01-20 2005-03-25 Peter Zimmer Keg Einrichtung zum aufbringen von farbe
DE102006051360A1 (de) 2006-10-27 2008-05-21 Khs Ag Beleimungsvorrichtung
CN105689195B (zh) * 2016-01-29 2017-12-19 浙江武义张氏包装实业有限公司 彩盒防潮施胶装置
CN108031619B (zh) * 2017-11-28 2020-12-18 徐州宝盈新能源科技有限公司 一种可除涂布暗痕的锂电池极片涂布方法
CN108080215B (zh) * 2017-12-27 2021-05-14 江苏全锂智能科技有限公司 一种锂电池极片的涂布方法
CN113274940B (zh) * 2021-05-21 2023-10-17 福建锐信合成革有限公司 一种浆料混色装置
CN115447275B (zh) * 2022-10-14 2023-12-15 青岛嘉泽包装有限公司 可横向串动的胶印机涂布单元腔式刮刀及其刮料方法
CN115502027B (zh) * 2022-10-29 2024-01-23 英卯(上海)机械制造有限公司 涂胶设备
CN116238239B (zh) * 2023-05-12 2023-07-07 福建佶龙机械科技股份有限公司 一种双面圆网印染机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT296927B (de) * 1967-01-31 1972-03-10 Peter Zimmer Vorrichtung zum Auftragen von flüssigen oder pastösen Massen
FR2125633A5 (fr) * 1971-02-15 1972-09-29 Mulhouse Alsacien Const
DE2250092C3 (de) * 1972-10-12 1980-11-20 Kuesters, Eduard, 4150 Krefeld Rakelvorrichtung
CH605140A5 (fr) * 1974-10-15 1978-09-29 Johannes Zimmer
AT346801B (de) * 1974-10-24 1978-11-27 Zimmer Johannes Streichrakel

Also Published As

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

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