EP4135908A1 - Buse de pulvérisation de colle structurale recouverte par une couche de protection contre l'accumulation de résidus de colle structurale - Google Patents
Buse de pulvérisation de colle structurale recouverte par une couche de protection contre l'accumulation de résidus de colle structuraleInfo
- Publication number
- EP4135908A1 EP4135908A1 EP21717143.8A EP21717143A EP4135908A1 EP 4135908 A1 EP4135908 A1 EP 4135908A1 EP 21717143 A EP21717143 A EP 21717143A EP 4135908 A1 EP4135908 A1 EP 4135908A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- protective layer
- structural adhesive
- spray nozzle
- parts
- nozzle
- 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.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 33
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 33
- 239000011241 protective layer Substances 0.000 title claims description 35
- 239000007921 spray Substances 0.000 title claims description 31
- 238000009825 accumulation Methods 0.000 title description 7
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000000151 deposition Methods 0.000 claims abstract description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 22
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 18
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000001273 butane Substances 0.000 claims description 9
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 9
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 9
- 239000001294 propane Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 3
- 238000005137 deposition process Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 239000012790 adhesive layer Substances 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 238000001962 electrophoresis Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 239000003973 paint Substances 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 11
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
- B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the conveyed articles being vehicle bodies
Definitions
- the present invention relates to the technical field of motor vehicles, in particular the technical field related to the spraying of structural adhesive on body parts.
- a well-known solution consists in reducing the weight of motor vehicles, for example by reducing the thicknesses of the parts or sheets making up the body of the motor vehicle.
- a structural bonding process consisting in depositing a layer of so-called structural adhesive on the surface of thin parts. After drying, the structural adhesive thus forms a solid layer reinforcing the rigidity of the part.
- the difficulty of adding a process such as welding to hold the parts together lies in the fact that it is forbidden to weld through the structural adhesive.
- the structural adhesive is burnt which then emits noxious fumes that are difficult to treat.
- robotic arms provided with spraying means of structural glue in the form of a jet.
- the robotic arms make it possible to deposit the structural adhesive in liquid jet form, very precisely, on predetermined areas on the surface of a part. In this way, areas of the part can be preserved from a deposit of structural adhesive, in order to subsequently allow the production of a weld point, without the risk of damaging or burning the structural layer.
- the present invention aims to provide a solution making it possible to reduce the rate of accumulation of structural glue residues on the surface of a nozzle projecting said glue in the form of a jet.
- the invention provides a structural glue spray nozzle, comprising a nozzle body through which a structural glue supply duct, the supply duct opening out to the surface of the nozzle at the level of an outlet orifice.
- the invention is remarkable in that the outer surface of the nozzle body is at least partially covered by a protective layer, composed of acetone, propane, butane and butanone.
- the inventors have found that the protective layer significantly limits the rate of accumulation of structural adhesive residues on the surface of the spray nozzle.
- composition of the protective layer comprises in mass ratio, between 25% and 50% acetone, between 25% and 50% propane, between 25% and 50% butane and between 2.5% and 10% butanone;
- the protective layer is partially liquid at room temperature.
- the protective layer to a thickness between 0.1 mm and 1 mm;
- the protective layer surrounds the outlet opening of the spray nozzle.
- the invention also relates to a method of depositing a protective layer on a spray nozzle, implementing the deposition, on the outer surface of a nozzle body, of a protective layer comprising of acetone, propane, butane and butanone, on the outer face of the spray nozzle.
- composition of the protective layer comprises in mass ratio, between 25% and 50% acetone, between 25% and 50% propane, between 25% and 50% butane and between 2.5% and 10% butanone;
- the protective layer is deposited around an outlet of the spray nozzle
- a new protective layer is deposited on the spray nozzle, after a period of time equal to or greater than 7 hours;
- FIG. 1 shows a schematic longitudinal section of a spray nozzle according to the invention.
- the invention provides a solution for reducing the rate of accumulation of structural glue residues on the surface of a nozzle projecting said glue in the form of a jet.
- FIG. 1 shows a schematic view of a spray nozzle 2 according to the invention.
- the spray nozzle comprises a nozzle body 4, crossed right through by a supply duct 6 of structural adhesive.
- the supply duct 6 opens onto the surface of the spray nozzle at an outlet port 8.
- the spray nozzle 2 is made from a metallic material.
- the invention proposes to at least partially cover the outer surface with a protective layer 12.
- the protective layer 12 is configured to limit, over time, the accumulation of structural adhesive on the nozzle, sprayed by said nozzle.
- the protective layer is remarkable in that it comprises in mass ratio, between 25% and 50% acetone, between 25% and 50% propane, between 25% and 50% butane and between 2.5% and 10% butanone.
- the protective layer can be made from one of the following products, known in particular under the trade name “Ceramic anti-scratch spray”, marketed under the references:
- the protective layer 12 is preferably partially liquid at room temperature.
- ambient temperature is meant a temperature between 18 ° C and 22 ° C.
- the thickness of the protective layer is between 0.1 mm and 1 mm, preferably between 0.1 mm and 0.5 mm.
- the protective layer is preferably applied at the level of the outlet orifice 8, all around said orifice.
- the invention also relates to a method of depositing the protective layer on a spray nozzle described above, implementing a step of spraying the protective layer 12 on the outer surface 10 of the spray nozzle. 2.
- the protective layer 12 on a spray nozzle advantageously makes it possible to reduce the amount of structural adhesive residues accumulating over time.
- the protective layer allows a more precise use over time of the spray nozzle 2, to produce precise deposits of structural adhesive layer on parts or sheets making up the body of the motor vehicle.
- the spray nozzle can operate for longer between two cleaning cycles of said nozzle, consisting in removing the structural glue residues, capable of deflecting the jets of glue coming from its outlet orifice.
Landscapes
- Adhesives Or Adhesive Processes (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
- Spray Control Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2003701A FR3109104B1 (fr) | 2020-04-14 | 2020-04-14 | Buse de pulvérisation de colle structurale recouverte par une couche de protection contre l’accumulation de résidus de colle structurale |
PCT/FR2021/050417 WO2021209696A1 (fr) | 2020-04-14 | 2021-03-11 | Buse de pulvérisation de colle structurale recouverte par une couche de protection contre l'accumulation de résidus de colle structurale |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4135908A1 true EP4135908A1 (fr) | 2023-02-22 |
Family
ID=74045439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21717143.8A Pending EP4135908A1 (fr) | 2020-04-14 | 2021-03-11 | Buse de pulvérisation de colle structurale recouverte par une couche de protection contre l'accumulation de résidus de colle structurale |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4135908A1 (fr) |
CN (1) | CN115397567A (fr) |
FR (1) | FR3109104B1 (fr) |
WO (1) | WO2021209696A1 (fr) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6803525A (fr) | 1968-03-12 | 1969-09-16 | ||
JPH11290749A (ja) * | 1998-04-13 | 1999-10-26 | Nordson Kk | 改良されたスロットスプレーガン装置 |
JP3960519B2 (ja) * | 2002-01-29 | 2007-08-15 | 株式会社東京自働機械製作所 | 糊噴射ノズル及び糊塗布装置 |
EP2791255B1 (fr) * | 2011-12-15 | 2017-11-01 | Ross Technology Corporation | Composition et revêtement pour une performance superhydrophobe |
DE102016000065B3 (de) * | 2016-01-06 | 2017-06-08 | Baumer Hhs Gmbh | Klebstoffauftragsverfahren und dafür geeignete Düse |
-
2020
- 2020-04-14 FR FR2003701A patent/FR3109104B1/fr active Active
-
2021
- 2021-03-11 EP EP21717143.8A patent/EP4135908A1/fr active Pending
- 2021-03-11 WO PCT/FR2021/050417 patent/WO2021209696A1/fr unknown
- 2021-03-11 CN CN202180028653.9A patent/CN115397567A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
CN115397567A (zh) | 2022-11-25 |
WO2021209696A1 (fr) | 2021-10-21 |
FR3109104A1 (fr) | 2021-10-15 |
FR3109104B1 (fr) | 2022-10-14 |
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Legal Events
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STAA | Information on the status of an ep patent application or granted ep patent |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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17P | Request for examination filed |
Effective date: 20221020 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PERREY, CHRISTIAN Inventor name: MAGNAUD, FLORIAN Inventor name: JACOTOT, ERIC Inventor name: MARQUES, GABRIEL |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: STELLANTIS AUTO SAS |