EP2613891A1 - Method and adhesive applicator for the contactless application of a multiplicity of discrete spots of adhesive, distributed over a surface area, permanently to a substrate - Google Patents
Method and adhesive applicator for the contactless application of a multiplicity of discrete spots of adhesive, distributed over a surface area, permanently to a substrateInfo
- Publication number
- EP2613891A1 EP2613891A1 EP11770043.5A EP11770043A EP2613891A1 EP 2613891 A1 EP2613891 A1 EP 2613891A1 EP 11770043 A EP11770043 A EP 11770043A EP 2613891 A1 EP2613891 A1 EP 2613891A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesive
- substrate
- application
- applicator
- applicator head
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/10—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an adhesive surface
-
- 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
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
- B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/14—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
- E06B7/23—Plastic, sponge rubber, or like strips or tubes
- E06B7/2305—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
- E06B7/2307—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing
- E06B7/231—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing with a solid sealing part
Definitions
- the invention relates to a method and adhesive application device for the contact-free application of a plurality of non-contiguous adhesive dots distributed on a surface to a substrate for permanent retention with the features of the preamble of claim 7.
- a plurality of adhesive coating devices are provided on a surface distributed, non-contiguous adhesive dots on a substrate to permanent local whereabouts apply without contact.
- a rotatable applicator head is used.
- the applicator head has means distributed on its radial (outer) surface for transferring adhesive dots to a substrate.
- the substrate is generally planar, in particular web-shaped and is passed in a suitable manner on the rotating applicator head.
- the order pattern can be adhered to only as precisely as this non-contact centrifugal technology allows, namely in dependence on the rotational speed of the rotary head, the adhesive pressure pending there, the adhesive temperature, the ambient temperature and the type of adhesive.
- the ambient temperature remains in most cases a not completely controllable factor, since working in temperature-controlled production areas is usually too expensive.
- a non-generic application method for patterning adhesive dots that works according to the contact principle is known as pocket technology.
- the means for transferring the glue dots consist of small-caliber "cups", ie recesses in the roller surface of the applicator roll, whose usually circular base, depth and cup contour can be freely predefined and produced, for example, by etching for a desired Surface pattern introduced into the roll surface.
- the procedure is such that the wells are filled with adhesive by means of a leak roll or other means known from printing technology and the remaining surface of the applicator roll is kept free of the adhesive.
- the filled with adhesive cups can be brought by rotation of the roll surface of the applicator roll with surface contact or at least line contact to a substrate or a Ü transfer roller and the adhesive is transferred thereto.
- the volume of adhesive introduced in the individual wells can not be transferred to the substrate fast enough and, as a rule, not completely enough so that an adhesive thread is formed between the wells on the applicator roll and the glue dots on the substrate ,
- Such adhesive threads tear in an undefined manner and the thread cooling leads to the point of glue on the substrate not having sufficiently uniform contours.
- adhesive residues can remain in the wells and gradually add in operation and they make the applicator roll thus exchange or at least require cleaning.
- Another contact application method for hot melt adhesive on a surface is known from DE 2125387 A1.
- the job is carried out via a plurality of nozzles in a flat application plate, the supply holes are opened via needle-like, resiliently projecting from the plate valve tappets when the application plate is pressed flat on the substrate.
- This method is suitable for the batchwise hot melt application (batch operation). After the back of the application plate from the substrate and closing the valves form between the substrate and the outstanding from the order plate needle-like valve creases adhesive threads, which by means of a pivotable cutting bracket with a heatable cutting blade in different and not insignificant distances from the substrate are severed.
- thread-free application systems are known with which also melted thermoplastic coating materials can be transferred from a coating head to a substrate.
- a print pattern exhibiting Siebähn Anlagen cylinder is known, on which a to be provided with a printing pattern web-shaped or arcuate substrate in physical conditioning under the pressure of a counter-roller linearly guided along.
- An elongated, parallel to the application roller arranged feed chamber, for coating materials has a nozzle slot which rests against the inner surface of the perforated cylinder jacket in the region of the contact line of the counter-pressure roller.
- the coating material is expressed from the die slot through the cylinder jacket perforation in physical contact of the cylinder and substrate onto the substrate.
- non-generic transmission methods are known for example from DE 19905317 A1 and DE 4020420 A1. It has proven to be difficult to transfer as many and / or small-area as possible adhesive dots in this way on a substrate.
- the invention is based on the problem, a generic adhesive application method and device for surface pattern of adhesive dots to the effect that thread-like adhesive structures on the treated substrate accounts for the most part.
- an adhesive application method with the features of claim 1 and an adhesive application device with the features of claim 7 is proposed. Accordingly, the method provides that a rotating applicator head carrying an aperture pattern on its circumference is displaced with lateral (radial) spacing from and relative to the surface of the substrate to be permanently provided with the pattern in an application direction. The adhesive is expelled to form lenticular bulges from the apertures of the applicator head in the region of a line or strip-like distance gap formed between the substrate and the applicator head.
- the invention provides that the transfer means for the (small) adhesive volumes are a plurality of a desired order pattern forming openings in a roll surface of an applicator roll forming roller shell, which are acted upon on the inside of the roll shell with the adhesive.
- a clearance gap or nip is provided and dimensioned such that the adhesive can be pressed out to form lens-like bulges from the perforations of the application head in the region of the distance gap formed line-wise or strip-like between the substrate and the application head.
- the adhesive protrusions contact the substrate in the area where the gap is located, without the applicator head touching the substrate.
- the adhesive bulges are peelable from the respective openings while adhering to the substrate and forming adhesive dots on the substrate.
- Typical opening (opening) cross sections are in the order of magnitude of a few mm to a few ⁇ m, preferably between 2 and 0.01 mm, and particularly preferably between 1 and 0.1 mm. As a rule, drill holes and thus cylindrical openings are sufficient. However, the opening cross-sections can also receive other cross-sectional shapes and, for example, be produced by lasers.
- Within the transfer roller can be provided elongated, approximately parallel to the roll axis Klebstoffzu meltblon which always supply only a limited number of adhesive transfer means / openings with adhesive, while the remaining openings are kept free of adhesive.
- Such a chamber preferably extends along the line of transmission between the surface of the applicator roll and the adhesive accepting substrate. As a result, the tendency to thread formation is further reduced.
- the inner surface of the roll mantle is guided along the open exit surface of the chamber for adhesive substantially sealingly along the chamber wall surrounding the exit surface, so that a shearing action is exerted on the adhesive on the entrance side of the apertures.
- a thread-like or blade-shaped adhesive thread separating element may be located behind the transfer nip, as seen in the substrate movement direction Be provided.
- the arrangement of this element is very particularly preferably parallel to the axis of rotation of the applicator head, but may also have a direction parallel to the roller axis direction component to fulfill its function. In this way it is possible to selectively separate the approximately forming adhesive thread at an early stage after the beginning of its formation. This ensures that the still comparatively low-viscosity adhesive can pull back from the separation point to the transmitted to the substrate main mass of the respective point of adhesive.
- the surface tension of the drop of adhesive usually suffices.
- the located on the other side of the separating element of the Due to the early separation of the adhesive thread and its surface tension and viscosity, forming adhesive thread has the possibility of retracting to the transfer means on the surface of the applicator roll.
- the adhesive originating from the one thread part can be kept sufficiently viscous to be used further in the subsequent transfer step, ie a rotation of the transfer roller by less than 360 ° for the next point of adhesive.
- Such an adhesive-thread-separating member may also be successfully used together with adhesive applicator rollers for adhesive dots by means of the above-described cups, as well as those applications in which products other than adhesives such as granular plastics are produced.
- the above solution idea is therefore of independent inventive importance.
- the adhesive filament separator can be brought to an appropriate temperature.
- the adhesive threads can be melted through, so that the proportion of mechanical separation effect is significantly reduced to completely.
- the distance of the adhesive separating element from the nip between the transfer roller and the substrate can be varied depending on the application.
- Preferred Nipabcounter be up to 10cm, preferably up to 1cm and more preferably up to 0.1cm.
- Figure 1 is a schematic representation of the adhesive application device in front view.
- FIG. 2 shows the same device in a side view of the applicator roll (view A-A according to FIG. 1);
- FIG. 1 shows the same device in a side view of the applicator roll (view A-A according to FIG. 1);
- FIG. 1 shows the same device in a side view of the applicator roll (view A-A according to FIG. 1);
- FIG. 1 shows the same device in a side view of the applicator roll (view A-A according to FIG. 1);
- FIG. 1 shows the same device in a side view of the applicator roll
- FIG. 3 shows a cross section through the device along the section line III-III of FIG. 2.
- FIG. 4 shows an alternative embodiment of an adhesive application device in a side view according to FIG. 2 and
- FIG. 5 shows a detailed representation of the removal of an adhesive volume from an adhesive application head.
- an applicator roll 1 rotatable about its longitudinal axis and having a circular cylindrical cross-section is provided, distributed over its circumference, with a multiplicity of drilled openings 2 in a roll shell 1A.
- One Web-shaped substrate 3 is guided at a small distance below the roll surface along this.
- the peripheral speed of the roller surface can be synchronized with the linear speed of the substrate and optimized as desired with a view to the thread formation.
- adhesive dots 4 are formed on the substrate surface in accordance with the distribution pattern of the adhesive-transferring perforations on the roll surface. Details are shown in FIG.
- adhesive threads 4A can form. These are severed by means of an adhesive thread separating element 6, for example in the form of a hot thread at a location close to the nip between the roll surface and substrate web, preferably by melting and / or mechanically.
- the hot thread is stretched parallel to the roll axis and over its length but at least across the width of the substrate web 3 and supplied with electrical voltage at 6A in order to maintain a desired thread temperature and to be able to introduce sufficient heat into the separation point.
- an adhesive supply line 7A to the application roller 1 can lead to an adhesive chamber 7 in the interior of the roller.
- a there, as shown in Figure 3, stationary held Adhesive chamber housing 8 extends at least over the application width of the applicator roll 1 and seals against the inner surface of the roll shell 1A.
- An adhesive feed slot 7B leads from the elongated adhesive chamber 7 to the inner surface of the roll mantle 1A, thus feeding a series of apertures 2 during the time that this row passes the adhesive feed slot. Accordingly, the apertures 2 of this series give only in this period of time for a specific adhesive point 4 amount of adhesive. After severing the then pulls between the substrate 3 at the glue point 4 and the openings 2 forming adhesive thread 4A pulls the one half of the thread to its opening 2 and the other half of the thread back to their glue point 4.
- the adhesive separator 6 may be self-cleaning or one provided with a cleaning unit 10.
- a self-cleaning adhesive separator may vaporize or chemically decompose adhesive filament residues to clean the separator at its active length, all the time, or at certain intervals.
- an elongate adhesive separating element in the form of a, in particular electrically, heatable wire endlessly around two pulleys 10A, 10B and 10C, at least one of which is provided with a rotary drive 10A, constantly or temporarily moved in the longitudinal direction.
- the zone active for the thread-separating step comes out of the same and can, for example, pass through a scraper 10D or another cleaning unit that cleans the surface of the adhesive-separating element 6.
- Possible adhesive residues can be collected in a collecting element 10E.
- the heating and temperature control of the adhesive separating element 6 can take place by means of one of the deflection rollers 10A and 10B by thermal or electrical contact, as indicated on the left in FIG. 4, via a voltage supply 6A.
- a peripheral adhesive-separating element 6 it is also possible to unwind a corresponding thread-like element from a coil and roll up on another or reversing the adhesive-separating element to lead through the separation points.
- the distance gap between the gun and the substrate, under continued relative movement of the same in Order direction be enlarged.
- the adhesive lens in the nip area can no longer get the necessary contact with the substrate.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202010012278U DE202010012278U1 (en) | 2010-09-07 | 2010-09-07 | An adhesive applicator for surface patterns of a plurality of non-contiguous glue dots on a substrate |
PCT/EP2011/004502 WO2012031750A1 (en) | 2010-09-07 | 2011-09-07 | Method and adhesive applicator for the contactless application of a multiplicity of discrete spots of adhesive, distributed over a surface area, permanently to a substrate |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2613891A1 true EP2613891A1 (en) | 2013-07-17 |
EP2613891B1 EP2613891B1 (en) | 2015-03-25 |
Family
ID=44508619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11770043.5A Not-in-force EP2613891B1 (en) | 2010-09-07 | 2011-09-07 | Method and adhesive applicator for the contactless application of a multiplicity of discrete spots of adhesive, distributed over a surface area, permanently to a substrate |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130209702A1 (en) |
EP (1) | EP2613891B1 (en) |
DE (1) | DE202010012278U1 (en) |
WO (1) | WO2012031750A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160371664A1 (en) * | 2015-06-19 | 2016-12-22 | Ncr Corporation | Slotted rotatable drum and method of using same |
CN208494752U (en) * | 2018-03-12 | 2019-02-15 | 常州恒锌禹晟智能装备有限公司 | A kind of PVDF isolation film coating mechanism |
FR3097802B1 (en) * | 2019-06-27 | 2021-07-02 | Qwarzo | MACHINE AND PROCESS FOR THE PRODUCTION OF TOUILLETTES OR MIXING STICKS FOR BEVERAGES |
CN115415107B (en) * | 2022-09-02 | 2024-02-23 | 浙江宇狮包装材料有限公司 | Patterning coating device based on laser engraving |
DE102023108694A1 (en) | 2023-04-05 | 2024-04-18 | Audi Aktiengesellschaft | Application device and robot arrangement |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2125387C3 (en) * | 1971-05-21 | 1975-02-27 | Ullrich, Walter, 8752 Kaelberau | Device for applying, in particular, hot-melt adhesives to workpieces |
DE68909319T2 (en) * | 1988-06-16 | 1994-02-03 | Dow Chemical Co | Process for laminating layers. |
DE4020420A1 (en) * | 1990-06-27 | 1992-01-02 | Volker Ludwig | METHOD FOR APPLYING LIQUID, PASTOESE OR PLASTIC SUBSTANCES TO A SUBSTRATE |
DE19905317A1 (en) * | 1999-02-09 | 2000-08-10 | Voith Sulzer Papiertech Patent | Liquid or paste application device for running backing, with convex side of sieve element facing backing |
EP1057541A1 (en) * | 1999-06-04 | 2000-12-06 | Solipat Ag | Device and method for partially applying a coating and web with a partial coating |
CN1662309A (en) * | 2002-06-14 | 2005-08-31 | 关西涂料株式会社 | Coating pressure feed roller, roller coating device, curved-surface operable roller coating device, automated coating apparatus using those devices, and coating method |
US7291359B2 (en) * | 2004-08-18 | 2007-11-06 | 3M Innovative Properties Company | Method and apparatus for making an adhesive cleaning sheet |
DE102006016584B4 (en) | 2005-09-27 | 2016-02-25 | Illinois Tool Works Inc. | Method and apparatus for applying adhesive threads and dots to a substrate |
-
2010
- 2010-09-07 DE DE202010012278U patent/DE202010012278U1/en not_active Expired - Lifetime
-
2011
- 2011-09-07 US US13/821,372 patent/US20130209702A1/en not_active Abandoned
- 2011-09-07 WO PCT/EP2011/004502 patent/WO2012031750A1/en active Application Filing
- 2011-09-07 EP EP11770043.5A patent/EP2613891B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2012031750A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2613891B1 (en) | 2015-03-25 |
WO2012031750A1 (en) | 2012-03-15 |
DE202010012278U1 (en) | 2011-12-22 |
US20130209702A1 (en) | 2013-08-15 |
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