EP0058307A1 - Dispositif et méthode pour enlever un adhésif des bords d'une piéce de travail - Google Patents
Dispositif et méthode pour enlever un adhésif des bords d'une piéce de travail Download PDFInfo
- Publication number
- EP0058307A1 EP0058307A1 EP82100385A EP82100385A EP0058307A1 EP 0058307 A1 EP0058307 A1 EP 0058307A1 EP 82100385 A EP82100385 A EP 82100385A EP 82100385 A EP82100385 A EP 82100385A EP 0058307 A1 EP0058307 A1 EP 0058307A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesive
- embrittled
- flanged
- epoxy resin
- workpieces
- 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
- 239000000853 adhesive Substances 0.000 title claims abstract description 37
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000003822 epoxy resin Substances 0.000 claims abstract description 7
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 30
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 6
- 210000003660 reticulum Anatomy 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007688 edging Methods 0.000 abstract 1
- 238000009877 rendering Methods 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 244000089486 Phragmites australis subsp australis Species 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0092—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by cooling
Definitions
- the invention relates to a method for removing excess, uncured adhesives, in particular epoxy resin adhesives, from the flanged edges of workpieces which are formed by flanging and gluing individual parts, such as doors, tailgates and bonnets of automobiles.
- Epoxy resin adhesives are used for this.
- the production of such adhesive connections is also integrated in time-controlled production lines.
- the epoxy resin adhesive is placed in the open in several work steps Flare fold dosed and injected. With straight or slightly curved flanged edges, the adhesive can be dosed so precisely that hardly any glue escapes from the fold during the last flanging. However, this does not apply to the corners of the workpieces. Since a high quality of the connection is required, the adhesive must be overdosed here. During the flanging process, part of the adhesive emerges from the seam. This excess glue must be removed thoroughly, otherwise it would impair the subsequent work process.
- the invention is therefore based on the object of providing a method for removing excess adhesive which can be incorporated into a time-controlled production line.
- a method has now been found for removing excess, uncured adhesives, in particular epoxy resin adhesives, from the flanged edges of workpieces which are formed by flanging and gluing individual parts, such as doors, tailgates and bonnets of automobiles, in which, according to the invention, the adhesive temporarily embrittled by a cryogenic liquefied gas and blasted off the workpiece by mechanical action.
- the flanged edge is acted upon from both sides with liquid nitrogen.
- the evaporated cryogenic nitrogen escapes through the slot at high speed, which results in additional intensive cooling of the Flanged edge leads.
- Such tubes can also be guided into the working position by pneumatic cylinders, so that the process step can be automated.
- compressed air-driven needle guns have proven to be very well suited for mechanical action.
- the needle guns can be used in a time-controlled production line without difficulty using an industrial robot.
- nozzles can be attached to the needle guns, from which cold evaporated gas is blown out.
- the brittle, embrittled adhesive parts are removed from the sheet before they soften again and adhere again to the sheet.
- the blown away parts of the glue can be collected and reused as glue after they have softened.
- the corner of a flanged edge shown in FIG. 1 consists of the sheet metal lower part 1, the sheet metal upper part 2, the flanged seam 4 and the excess adhesive 3.
- the corner is taken up by a slotted tube 5 for the purpose of exposure to liquid nitrogen.
- the nitrogen is supplied through connecting piece 6.
- the liquid nitrogen collects at the bottom of the slotted tube 5 as a nitrogen bath 7.
- the flanged seam 4 is therefore acted on by liquid nitrogen on both sides.
- the vaporized nitrogen 8 escapes through the slot 9 and in this way contributes to cooling the flanged edge.
- FIG. 2 the slotted tube 5 with the flanged edge in the foreground is shown in section.
- FIG. 3 shows the corner of the flanged edge with a needle gun 11 in use, which is moved from right to left.
- the front part of the flanged edge is already freed of excess adhesive, the adhesive fragments 12 are separated from the sheet metal upper part 2.
- a nozzle 13 is attached to the needle gun 11, through which cold evaporated nitrogen 14 is blown out.
- the adhesive fragments 12 are blown away from the sheet metal upper part 2. They can be collected and used again later as an adhesive.
- the method according to the invention takes place in such a way that a slotted tube 5 is first guided through pneumatic cylinders to each of the four corners of the flanged edge. As soon as the corners have been taken up by the slotted tubes 5, liquid nitrogen is supplied for 8 to 15 seconds. The slotted tubes 5 are then withdrawn and compressed air-operated needle guns 11 are guided over the flanged seam 4 by working robots. The excess embrittled adhesive is blown off and blown away. This work process lasts 8 to 12 seconds, so that the entire method according to the invention can be carried out in a work cycle of 30 seconds.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813105836 DE3105836A1 (de) | 1981-02-18 | 1981-02-18 | "verfahren und vorrichtung zur entfernung von ueberschuessigen klebern von den boerdelkanten von werkstuecken" |
| DE3105836 | 1981-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0058307A1 true EP0058307A1 (fr) | 1982-08-25 |
| EP0058307B1 EP0058307B1 (fr) | 1984-04-25 |
Family
ID=6125104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82100385A Expired EP0058307B1 (fr) | 1981-02-18 | 1982-01-21 | Dispositif et méthode pour enlever un adhésif des bords d'une piéce de travail |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0058307B1 (fr) |
| JP (1) | JPS57153068A (fr) |
| BE (1) | BE892139A (fr) |
| DE (1) | DE3105836A1 (fr) |
| ES (1) | ES8302762A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0250915A1 (fr) * | 1986-07-03 | 1988-01-07 | Messer Griesheim Gmbh | Procédé pour enlever les couches d'enduits de pièces à usiner |
| DE4028434A1 (de) * | 1990-09-07 | 1992-03-12 | Georg Michael Prof Dr In Daerr | Verfahren zur sanierung von mit schadstoffbelasteten, dauerelastischen dehnfugenmassen versehenen bauanordnungen |
| EP1029602A3 (fr) * | 1999-02-17 | 2000-11-08 | Volkswagen Aktiengesellschaft | Procédé pour enlever des adhésifs d'une carrosserie de véhicule |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111215367B (zh) * | 2018-11-27 | 2021-11-05 | 荣耀终端有限公司 | 针棒和清胶装置 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2906496A1 (de) * | 1979-02-20 | 1980-08-28 | Linde Ag | Verfahren zum loesen von geklebten kunststoffplatten |
-
1981
- 1981-02-18 DE DE19813105836 patent/DE3105836A1/de not_active Withdrawn
-
1982
- 1982-01-21 EP EP82100385A patent/EP0058307B1/fr not_active Expired
- 1982-02-15 BE BE1/10426A patent/BE892139A/fr not_active IP Right Cessation
- 1982-02-16 JP JP57022187A patent/JPS57153068A/ja active Pending
- 1982-02-18 ES ES509702A patent/ES8302762A1/es not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2906496A1 (de) * | 1979-02-20 | 1980-08-28 | Linde Ag | Verfahren zum loesen von geklebten kunststoffplatten |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0250915A1 (fr) * | 1986-07-03 | 1988-01-07 | Messer Griesheim Gmbh | Procédé pour enlever les couches d'enduits de pièces à usiner |
| DE4028434A1 (de) * | 1990-09-07 | 1992-03-12 | Georg Michael Prof Dr In Daerr | Verfahren zur sanierung von mit schadstoffbelasteten, dauerelastischen dehnfugenmassen versehenen bauanordnungen |
| EP1029602A3 (fr) * | 1999-02-17 | 2000-11-08 | Volkswagen Aktiengesellschaft | Procédé pour enlever des adhésifs d'une carrosserie de véhicule |
Also Published As
| Publication number | Publication date |
|---|---|
| BE892139A (fr) | 1982-05-27 |
| DE3105836A1 (de) | 1982-09-02 |
| ES509702A0 (es) | 1983-01-16 |
| ES8302762A1 (es) | 1983-01-16 |
| EP0058307B1 (fr) | 1984-04-25 |
| JPS57153068A (en) | 1982-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): FR GB IT NL SE |
|
| 17P | Request for examination filed |
Effective date: 19821203 |
|
| ITF | It: translation for a ep patent filed | ||
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Designated state(s): FR GB IT NL SE |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
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| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
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| ITTA | It: last paid annual fee | ||
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| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
| GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
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| REG | Reference to a national code |
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| EUG | Se: european patent has lapsed |
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