EP3551342A1 - Device for uninterrupted coating of can bodies and operating method - Google Patents
Device for uninterrupted coating of can bodies and operating methodInfo
- Publication number
- EP3551342A1 EP3551342A1 EP18711807.0A EP18711807A EP3551342A1 EP 3551342 A1 EP3551342 A1 EP 3551342A1 EP 18711807 A EP18711807 A EP 18711807A EP 3551342 A1 EP3551342 A1 EP 3551342A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- intermediate container
- coating liquid
- compressed air
- input
- 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
- 238000000576 coating method Methods 0.000 title claims abstract description 76
- 239000011248 coating agent Substances 0.000 title claims abstract description 74
- 238000011017 operating method Methods 0.000 title description 6
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 13
- 238000013022 venting Methods 0.000 claims description 9
- 238000005429 filling process Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 2
- 239000003973 paint Substances 0.000 description 57
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000004922 lacquer Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241000251730 Chondrichthyes Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000009736 wetting Methods 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
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
-
- 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
-
- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- 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
- B05C5/0245—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 for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web
- B05C5/025—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 for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web only at particular part of the work
Definitions
- the invention relates to a device for continuous coating of a series of can bodies and a method for continuous operation of the device according to the respective independent Atispruch.
- Devices for coating can bodies are known. These are, in particular, paint spray systems for the outside seaming of can bodies. These systems are used to coat the weld seam of can bodies, so that it is protected against corrosion.
- a system is located in a can production line downstream of a welder that welds cylinder-shaped sheets to can bodies. Downstream of the paint spray system, additional processing stations may be provided.
- the coating of the can bodies which come with high cadence from the welding machine, such that paint is conveyed from a paint container under pressure to an application nozzle, which the. Spray paint in a thin layer onto the surface of the respective can body to be coated.
- a device for seamless coating of can bodies with a coating liquid comprising
- At least one inlet container for the provision of the coating liquid to be applied
- At least one compressed air source for compressed air supply which is designed such that it promotes compressed air with a delivery pressure in the input container to the coating liquid from the input container by a. Transport input line, and
- At least one application nozzle for applying, in particular spraying, the coating liquid with an application pressure on the can body.
- an intermediate container is provided in the device, the input side by means of the input line with. is connected to the input container and On the output side is connected by means of an output line to the application nozzle.
- the intermediate container is filled from the input container by means of compressed air from the compressed air source with a delivery pressure up to a nominal fill level with coating liquid.
- a vent valve of the intermediate container is configured such that during the filling process of the intermediate container with coating liquid at the same time air can escape through the vent valve from the intermediate container.
- Coating liquid is started on the Dzsenzargen by coating liquid from the intermediate container to the Appllkationsdüse promoted and applied by this on the respective can body.
- a desired level of the coating liquid in the intermediate container is monitored in a continuous step by means of at least one fill level sensor.
- a fourth step the conveyance of the coating liquid from the intermediate container to the application nozzle is maintained by feeding compressed air from the compressed air source through a compressed air line into the intermediate container.
- a fifth step the. empty input containers by at least one new input replaced while the coating liquid is further conveyed from the intermediate container to the application nozzle.
- a sixth step the filling process of the intermediate container with coating liquid from the at least one new input container is continued only after determining a proper connection of the new input container to the input line.
- the application of the coating liquid is not interrupted on the can bodies during this.
- the operations from the third step are repeated until another action requires stopping the process, e.g. once all the can bodies of a batch have been coated or the device has to be serviced or cleaned.
- the coating does not have to be interrupted while the input container is exchanged. This is due in particular to the fact that during the unavoidable replacement of the input container, the coating can be continued by the coating liquid for this period. the intermediate container is provided. As a result, it is prevented that the direction for the exchange time must be switched off, which means an interruption of the coating. If the device continues to be operated during the exchange, air is also drawn in as in the case of conventional solutions, but this only passes into the intermediate container (buffer container) and not directly to the application nozzle.
- FIG. 1 shows a schematic view of an inventive device for continuous coating of can bodies.
- coating liquid includes all liquids which are suitable for a coating, in particular metal coating, in particular clear and colored coating varnishes, in particular solvent-based or water-based paints having a viscosity between 12 and 18 s according to DIN 4.
- lacquer will not be used as limiting.
- application encompasses all possibilities of wetting a surface to be coated, wherein the spraying of the surface is preferred.
- delivery pressure is to be understood as the pressure which is built up by a corresponding pressure-generating device for transporting the lacquer at the entrance of the device according to the invention (input side.)
- An “application pressure” is that which is at the exit of the device according to the invention Device (output side) is used for applying the paint.
- the actual pressure prevailing in the device between input and output may deviate from these two pressure values and is referred to as “nominal pressure”.
- maximum level refers to an upper threshold for the maximum permissible level of the paint in a still to be defined intermediate container.
- minimum level refers to a lower threshold for the minimum permissible level of the lacquer in the intermediate container.
- the term "desired filling level” refers to a desired level of the paint in the intermediate container during normal operation of the device according to the invention.
- nominal fill level refers to a level of the paint in the intermediate container which actually prevails at a time of measurement.
- intended operation refers to that operating state of the device according to the invention in which the nominal fill level of the paint substantially corresponds to the desired fill level during the coating.
- pressure in the present context is understood to mean a pressure higher than the atmospheric pressure.
- the FIGURE shows a schematic view of a device 1 according to the invention for the continuous coating of can bodies, in particular a series of can bodies, with a lacquer.
- the device 1 can be used for coating a single can body, however, for the following exemplary embodiment of the device for explaining the advantages of the device 1, a series or endless series of can bodies is assumed.
- the device 1 comprises an input container 2 for the provision of the paint to be applied. It can be provided, but also several .Einangs technologyer 2 (see dashed lines illustrated input container), which can be filled either with the same paint or with different components, a paint to be mixed.
- the informationsbje marryer 2 is connected by means of an input line 8a with an intermediate container 5.
- a first valve 2a (for example a solenoid valve), by means of which the delivery of paint from the input container 2 can be switched on or off, is arranged on the input container in the input line 8a.
- the "first valve 2a is fully open during normal operation and completely closed during the exchange of input tanks 2, .which is described in more detail below.
- the device 1 comprises a compressed air source 3 for compressed air supply.
- the ' compressed air source 3 has several tasks.
- the compressed air source 3 is the transport of the paint from the input container 2 through the input line 8a in the intermediate container 5.
- the compressed air source 3 is connected by means of a line 8d to the input container 2.
- Input container 2 for example with a delivery pressure of 4 bar, preferably adjustable by means of an input pressure regulator 3b, and 1, the paint is pressed into the input line 8a.
- the entire device 1 is preferred, no pumps encompassed and carried the entire transport of the paint by means of compressed air.
- another suitable gas may be used instead of air, but air is preferred for cost reasons.
- pumps may also be used instead of or in addition to conveyance by means of compressed air, although this is not preferred.
- a second task of the compressed air source 3 is to support the maintenance of the transport of the paint from the intermediate container 5 to the application nozzle 9 while an empty inlet container 2 is exchanged with a new inlet container 2 (compare the fourth step of the method according to the invention).
- the compressed air source 3 is connected to the intermediate container 5 by means of a compressed air line 8c.
- a second valve 3a is provided, by means of which the compressed air supply to the intermediate container 5 can be switched on or off. If it has been found that the inlet container -2 is empty, the valve 2a is closed and the valve 3a is opened. So that the paint supply is interrupted in the intermediate container 5 and compressed air is pumped into the intermediate container 5. Subsequently, the empty input container 2 can be replaced.
- the statement that the input container 2 is empty can be communicated to the user, for example by means of an acoustic and / or optical signal.
- the compressed air source 3 is designed such that it maintains a substantially constant discharge pressure during the intended operation of the device.
- the delivery pressure is selected higher than the application pressure, which will be explained in more detail in connection with the application nozzle to be described later. It is noted that regardless of the fact that the delivery pressure is kept as constant as possible, pressure fluctuations may very well occur in the further course of the paint-transporting delivery stream, which may be e.g. due to line losses or venting.
- the compressed air source 3 is designed such that it can korapensie- ren such pressure fluctuations. In other words, the delivery pressure in one embodiment of the device according to the invention can be adjusted due to such circumstances.
- a filter 4 is preferably connected, which filters any existing dirt particles from the paint.
- a venting valve 5a is provided, by means of which air can be discharged from the intermediate container 5.
- a safety distance is maintained between the above-mentioned mouth of the input line 8a in the intermediate container 5 and the venting valve 5a, so that no paint can escape through the venting valve 5a during the venting.
- This safety distance can e.g. be ensured if, as shown in the figure, the mouth side of the intermediate container 5 and the vent valve 5a are arranged on top of the intermediate container 5.
- an outlet valve 5b is provided, which serves for emptying the intermediate container 5, which is e.g. in the case of a pending cleaning of the intermediate container 5 'is performed.
- the intermediate container 5 is a pressure vessel dex designed for at least the maximum possible pressure in the device 1.
- level sensors 6a, 6b, 6c ⁇ eg infrared photoelectric sensor-based sensors) for detecting a level of the paint in the intermediate container 5 are provided, in other embodiments, a single level sensor or two level sensors can be provided ,
- a first level sensor 6a is used to detect a maximum level of the paint in the intermediate container 5.
- a second level sensor 6b is used to detect a Soll StahlStands the paint in the intermediate container 5. With others Horten detects the second level sensor 6b whether the nominal level is above or equal to the desired level or below.
- a third fill level sensor 6c is used to detect a minimum level of the paint in the intermediate container 5. The task of the individual fill level sensors is explained in more detail below in connection with the operating method according to the invention.
- a measuring column 6 is provided, which is connected to the intermediate container 5 in liquid-transporting manner and on or in which the level sensors 6a, 6b, 6c are arranged.
- the measuring column typically has a diameter that is many times smaller than the intermediate container 5. The use of the measuring column has the advantage that more buffer time is gained since it is known in advance when the input container 2 is empty.
- the intermediate container 5 is connected auagangs wh means of an output line 8b with an application nozzle 9.
- the application nozzle 9 is used to apply, in particular "spraying, the paint with an application pressure of eg 2 bar or 2.5 bar on the can body la.
- the output line 8b preferably begins in the lower region of the intermediate container 5, preferably in the lower quarter of G ' etician admir of the intermediate container 5, in particular below the minimum filling level of the lacquer in the intermediate container 5, thus ensuring that no air can enter the outlet line 8b
- the lower area of the intermediate container -5 improves the decoupling of the output line 8b from the input line 8a with respect to the action of air which can enter the input line when the input container 2 is changed. Accordingly, this air is admitted through the input line 8a transported in the intermediate container 5, but it remains in ob Eren area of the intermediate container 5 and can be
- a manually or automatically operable pressure regulator 7 for regulating the application pressure for spraying the paint by means of the application nozzle 9 is provided.
- the delivery pressure is higher than the application pressure selected, in this example 4 bar or 1 bar or 2.5 bai. This ensures that seen from the input side of the device 1 sufficient pressure is built up to ensure the required spraying action of the application nozzle 9, since the pure hydrostatic pressure caused by the paint column in the intermediate container 5, not for the requirements of the coating Can bodies la are sufficient.
- the pressure in the intermediate container 5 substantially corresponds to the Harrison horr, here, for example. 4 bar.
- any pressure losses in the thoroughlysleitüng. etc. not an advantage.
- An advantage of these pressure conditions lies in the fact that the. Application pressure is made controllable from the input side of device 1, even if e.g. the pressure regulator 7 is not present.
- an output valve 13 is provided, by means of which the paint supply to the application nozzle 9 can be switched on or off.
- the valve 13 typically remains closed until dibose quantities 1a arrive at the coating, after which the paint supply is switched on.
- the device according to the invention preferably comprises a control unit 11.
- the control unit 11 is connected in the figure to the ensemble of elements of the device 1 according to the invention enclosed in the dashed rectangle. It can of course also be connected to other elements of the inventive device 1, for example with the pressure regulator 7 or 1 with the Inlet pressure regulator 3b.
- the control unit 11 may perform various of the following tasks individually or in combination:
- Control of the application pressure in particular control of the pressure regulator 7, in particular interrogation of the pressure sensor 10,
- valves 2a, 3a, 5b and the pressure regulator 7 can also be controlled manually.
- the method for continuous operation of the device comprises the following steps already mentioned:
- Step 1 filling the intermediate container 5 with paint from the input container 2 by means of compressed air, from the compressed air source 3 with a. Conveying pressure to a S 'oll- level.
- This step can also be considered as a preparation step and only needs to be done once at the beginning of a coating process.
- the pressure build-up int pumping line of the paint to the pressure regulator 7 is assumed. If a test run is provided, the application pressure downstream of the pressure regulator 7 during the spraying of. Test frames with Druckregler- 7 manually or automatically adjusted or adjusted. Otherwise, the setting of the application pressure with the pressure regulator 7 can be done once during startup of the device according to the invention.
- the venting valve 5a of the intermediate container 5 is configured in such a way that during the filling process of the intermediate container 5 with coating fluid, air which is displaced by the paint flowing into the intermediate container 5 exits the intermediate container 5 through the deaeration valve 5a, can.
- the vent valve 5a can be controlled by means of the state of the level sensor 6b and the control unit 11.
- Step 2 Start the spraying of the paint on the can bodies la, in particular on the outer seam of the can bodies la, by paint with the application pressure (from the pressure regulator 7) is conveyed from the intermediate container 5 to the application nozzle 9, which sprays it onto the respective can body. This happens indirectly through the. Delivery pressure of the compressed air source 3.
- the application nozzle 9 is dimensioned accordingly,. that the coating jet can be adapted to the width of the section to be coated.
- This step may be performed at any time, preferably periodically at predetermined time intervals, and may therefore overlap with step 1 and / or 2.
- the desired filling level of the paint in the intermediate container 6 is determined by means of the second level sensor 6b. supervised.
- Step 3 Determination using the above continuous step that the nominal level uiiter the desired level has fallen. This can be done by polling the second paint sensor 6b by means of the control unit 11. This determination takes place at least whenever the input container 2 is empty. In this case, the paint level in the intermediate container 5 * drops since, on the output side, paint is still being removed for coating, but no paint is supplied to the intermediate container 5 on the input side.
- the determination that the input container 2 is empty is acknowledged as valid if either the paint does not reach the desired level during a certain period of time or if the Kominal StahlhelLstand has fallen by a certain factor below the desired level. If this statement has been acknowledged, then preferably, as already mentioned, an audible and / or visual signal can be output.
- a detection unit may be provided, by means of which air bubbles are detected in the input line.
- Step 4 Maintaining the conveyance of the coating liquid from the intermediate container 5 to the application nozzle 9 by conveying compressed air from the compressed air source 3 through the compressed air line 8c into the intermediate container 5. This happens by the second valve 3a is opened. Only then is the first valve 2a closed and the empty inlet container 2 decoupled. In step 4, accordingly, the delivery pressure in the intermediate container 5 is maintained. In this way it is ensured that at the application nozzle 9, which is still in use during the exchange of the inlet container 2, continues to apply sufficient pressure for spraying.
- Step 5 Replacing the empty input container 2 by at least one new input container 2, while the paint is further promoted from the intermediate container 5 to the application nozzle 9. If several inlet containers 2 are connected, then the replacement can take place in such a way that switching from an empty first inlet container 2 to a second inlet container 2 takes place. In this case, the filling state of the second input container 2 is checked in advance to ensure that it is full. If all the input containers 2 are empty, they are replaced or refilled.
- Step 6 Continuation of the supply of the intermediate container 5 with coating liquid from the at least one new input container 2. This is done only after finding a proper connection of the new input container 2 to the Eingarigsleituhg 8a. During this process, the application of the coating liquid to the can bodies 1a is not interrupted during this time. The supply of the intermediate container 5 with paint is resumed by the first valve 2a is opened again after the second valve 3a has been closed.
- the application pressure can preferably be adjusted by means of the pressure regulator 7 of the device 1 in such a way that it is lower than the center pressure by a prescribed factor.
- This factor is preferably chosen in the range of 1.5 to 2.
- the transport of the paint from the input container 2 is preferably stopped until the nominal Eel level falls below the maximum level again (close the first valve 2a).
- This state can be reported by the first level sensor 6a to the control unit 11.
- the air in the intermediate container 5, which, in the normal operation of the device, ensures that the liquid level can not rise above a certain level due to the prevailing excess pressure and can be evacuated and displaced by the rising nominal level of the paint.
- the vent valve -5a can be opened, for example, during operation when air bubbles are contained in the paint flowing into the intermediate container 5 paint and they must be evacuated from the intermediate container 5.
- the increase of the nominal level can be limited by closing the vent valve 5a.
- compressed air can be conveyed from the compressed air source 3 through the compressed air line 8c into the intermediate container 5.
- a maximum permissible duration of this state of exceeding the maximum level can be defined, after which the device is switched off. If the nominal level falls below the Haximal Pavllstand during this time, the Ldckbeluster from the input container 2 can be resumed. In this context, it is noted that the maximum state.
- the present invention makes it possible through the interposition of the intermediate container in the conveyor line of the paint in a device for coating Dösenzargen that no ünterbruch the coating takes place when replacing the input container and thus the coating of the can bodies, can be performed more efficiently. Accordingly, the inventive method allows a continuous coating of the can bodies, without any shark when an input container are exchanged rauss to interrupt production. This saves costs and makes production more efficient. While preferred embodiments of the invention have been described in the present application, it is to be understood that the invention is not limited to these and may be practiced otherwise within the scope of the following claims. In particular, terms such as “advantageous” and "preferably 1 * only associated with exemplary embodiments, and have no limiting effect on the scope of the invention.
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00813/17A CH713909A1 (en) | 2017-06-21 | 2017-06-21 | Apparatus for the continuous coating of can bodies and operating methods. |
PCT/CH2018/000005 WO2018232535A1 (en) | 2017-06-21 | 2018-02-28 | Device for uninterrupted coating of can bodies and operating method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3551342A1 true EP3551342A1 (en) | 2019-10-16 |
EP3551342B1 EP3551342B1 (en) | 2021-07-07 |
Family
ID=61691178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18711807.0A Active EP3551342B1 (en) | 2017-06-21 | 2018-02-28 | Device for uninterrupted coating of can bodies and operating method |
Country Status (8)
Country | Link |
---|---|
US (1) | US11628457B2 (en) |
EP (1) | EP3551342B1 (en) |
CN (1) | CN110382121B (en) |
CH (1) | CH713909A1 (en) |
ES (1) | ES2882164T3 (en) |
PT (1) | PT3551342T (en) |
TW (1) | TWI755500B (en) |
WO (1) | WO2018232535A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA3068600A1 (en) | 2017-06-29 | 2019-01-03 | Matthews International Corporation | Fluid delivery system and method |
FR3104480B1 (en) | 2019-12-17 | 2022-12-30 | Cmsi Conception Et Moulage Au Service De Lindustrie | MANUFACTURING OF MILLIMETRIC TO DECIMETRIC PLASTIC PARTS, BY INJECTION AND FINISHING |
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CN203816814U (en) * | 2014-03-14 | 2014-09-10 | 三一汽车制造有限公司 | Release agent spraying device |
EP3117905A1 (en) * | 2015-07-15 | 2017-01-18 | Lutzke Maschinen- und Anlagen GmbH | Device and method for the preparation of components which are stuck together |
CN205731702U (en) | 2016-05-12 | 2016-11-30 | 广东正英科技有限公司 | A kind of mechanical arm powder electrostatic gun |
CN106259274A (en) | 2016-10-13 | 2017-01-04 | 广西大学 | A kind of powder spraying machine |
-
2017
- 2017-06-21 CH CH00813/17A patent/CH713909A1/en not_active Application Discontinuation
-
2018
- 2018-02-28 EP EP18711807.0A patent/EP3551342B1/en active Active
- 2018-02-28 CN CN201880014908.4A patent/CN110382121B/en active Active
- 2018-02-28 WO PCT/CH2018/000005 patent/WO2018232535A1/en unknown
- 2018-02-28 ES ES18711807T patent/ES2882164T3/en active Active
- 2018-02-28 US US16/623,431 patent/US11628457B2/en active Active
- 2018-02-28 PT PT187118070T patent/PT3551342T/en unknown
- 2018-03-14 TW TW107108559A patent/TWI755500B/en active
Also Published As
Publication number | Publication date |
---|---|
US11628457B2 (en) | 2023-04-18 |
PT3551342T (en) | 2021-08-11 |
TWI755500B (en) | 2022-02-21 |
US20200114380A1 (en) | 2020-04-16 |
CN110382121B (en) | 2022-03-08 |
ES2882164T3 (en) | 2021-12-01 |
TW201904671A (en) | 2019-02-01 |
CH713909A1 (en) | 2018-12-28 |
WO2018232535A1 (en) | 2018-12-27 |
EP3551342B1 (en) | 2021-07-07 |
CN110382121A (en) | 2019-10-25 |
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