EP3759389A1 - Traçage sur une tôle destinée à un usage en chaudronnerie - Google Patents
Traçage sur une tôle destinée à un usage en chaudronnerieInfo
- Publication number
- EP3759389A1 EP3759389A1 EP19705766.4A EP19705766A EP3759389A1 EP 3759389 A1 EP3759389 A1 EP 3759389A1 EP 19705766 A EP19705766 A EP 19705766A EP 3759389 A1 EP3759389 A1 EP 3759389A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- marking
- braking
- driving
- braking means
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 41
- 239000002184 metal Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000003780 insertion Methods 0.000 claims description 41
- 230000037431 insertion Effects 0.000 claims description 41
- 238000003825 pressing Methods 0.000 claims description 28
- 238000007639 printing Methods 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000007641 inkjet printing Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000013519 translation Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000000976 ink Substances 0.000 description 23
- 238000005520 cutting process Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- 239000000700 radioactive tracer Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009950 felting Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007648 laser printing Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- MUBKMWFYVHYZAI-UHFFFAOYSA-N [Al].[Cu].[Zn] Chemical compound [Al].[Cu].[Zn] MUBKMWFYVHYZAI-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/001—Steam generators built-up from pre-fabricated elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/413—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material for metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0058—Digital printing on surfaces other than ordinary paper on metals and oxidised metal surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/36—Arrangements for sheathing or casing boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/36—Arrangements for sheathing or casing boilers
- F22B37/365—Casings of metal sheets, e.g. expansion plates, expansible joints
Definitions
- the present invention relates generally to the field of the manufacture of boiler parts and in particular for the heat lagging of heat transfer fluid pipes and ventilation (HVAC / HVAC). It relates more particularly to the tracing step in the manufacture of such parts.
- HVAC / HVAC heat transfer fluid pipes and ventilation
- parts are generally made from flat sheets, which are cut, deformed and assembled to obtain a custom piece adapted to the space available for installation.
- a tracing is first performed on the surface of the sheet. Tracing defines the cutting lines corresponding to a projection or development of the desired final shape.
- the pieces are cut and formed to be assembled.
- the pieces can also be punched or undergo other transformations, such as folding, molding, forming, until the desired geometric shape.
- the plotter uses a palette of tools including a scribing tip that allows it to indelibly mark the shapes on the sheet metal by notches.
- Tracing is a discipline of the boilermaking in its own right that uses graphical methods to approximate and optimize the surface of sheet metal required for the forming of surfaces, developable and non-developable, such as elliptical surfaces, sphere elements, or shapes. cono ⁇ dales.
- the job of tracer therefore requires both a good physical condition, and intellectual rigor associated with knowledge of geometric tracing techniques.
- the tracer is an expert who has studied the principles of geometry in space and projection on a plane. The profession is accessible only after a long and binding training. For this reason it is difficult to find tracers, and the lack is felt on construction sites, and in manufacturing workshops.
- the only currently known alternative to avoiding the tracing step - and the tracer - is to produce custom cut sheets with a numerically controlled cutting machine.
- This machine offers the possibility of cutting a sheet automatically with a mechanical cutting tool contact, cutting blade type, or melting of the material.
- the shapes of the parts are programmed using software and then communicated to the numerically controlled machine which cuts the sheets according to the plans obtained via the software. The piece is cut directly on the basis of its digitized model.
- This solution makes it possible to dispense with a plotter and to obtain pieces made to measure by a less qualified worker.
- Another disadvantage of a cutting machine is its lack of flexibility. Such a machine generally allows only one format of input material. For example, a given machine will be able to make cuts only from flanks of flat sheet or from sheets coming from coils, but rarely both.
- the object of the present invention is to propose a method of marking on a sheet intended for boilermaking use, the method comprising the steps of:
- a control unit of a marking system also comprising a means for driving the sheet; braking means of the sheet; and a marking head;
- This method makes it possible to solve both the problems related to hand tracing and those related to the use of an automated cutting machine. It makes it possible to replace the tracer trade on boiler parts, without implying the disadvantages of the current automated cutting machines.
- the marking head is preferably an ink jet print head using a fast drying ink, preferably a solvent ink or a laser print head. After marking, the pieces can be cut, for example with manual scissors, a power shear, or a crusher.
- the sheet may first be introduced into the braking means and then into the drive means or vice versa.
- the sheet intended for boilermaking use has a thickness of less than 10 mm, and preferably between 0.4 mm and 1.5 mm.
- the marking distance d between the head and the marking plane is less than 5 mm, and more preferably between 1 and 3 mm.
- the term "tracing” is used to designate the realization of shapes on a sheet metal sheet by notching the surface of the metal.
- the layout can be made on sheet steel, aluminum, copper, zinc, etc.
- the term “marking” refers to the printing of shapes on a sheet metal sheet.
- the tracing can therefore be replaced by a marking, such as an ink drawing, made on the sheet, provided that the drawing is sufficiently indelible.
- a marking such as an ink drawing
- the sheet does not absorb the ink. It may therefore have burrs / dirt or be completely erased.
- the surface condition of the sheets used in the boilerwork is not always perfect and printing becomes even more difficult. Conventional water- and oil-based inks are unsuitable because they dry slowly and adhere very little or not at all to metal surfaces.
- Fast drying means an ink that is dry after a few tenths of a second.
- Multiple Black AP ink from REAJET (Mühltal, Germany) for example is very suitable.
- the marking is preferably performed by an automated system comprising an ink jet print head.
- Inkjet printheads are known and widespread.
- the inkjet printing technique requires a low and constant height between the projection head and the print medium. A variable height will result in too much or not enough diffuse projection of the ink jet.
- a laser printhead can be used for marking the sheets.
- sheets of aluminum, steel, stainless steel generally in the form of flanks of flat sheet metal have a slight buckling of the material generated during its manufacture or its packaging.
- flexible "sheets”, such as sheets made of synthetic and / or laminated materials, such as plastics or pvc laminated with aluminum have a greater elastic deformation than the metal sheets and keep marked natural folds that make this type of flexible sheet difficult to handle flat.
- the method according to the invention takes into account all the observations mentioned above.
- the method makes it possible to supplement a tracing in the workshop without the assistance of a tracer, by using simple and inexpensive elements, and is versatile as to the material of the sheets on which the tracing is carried out.
- the process offers a practical alternative, at an acceptable cost, to manual tracing.
- the combined actions of the drive and braking means allow to stretch and flatten the sheet and remove the natural folds.
- the marking can then be performed on a flat sheet surface with sufficient accuracy for a boiler application.
- the step of marking / printing on the stretched sheet further comprises the step of scrolling the tensioned sheet in front of the marking head by the combined actions of the drive and braking means.
- the sheet advances in front of the marking head and the latter can be content to have a transverse movement to scroll the sheet.
- the displacement system of the marking head is simplified.
- the method according to the invention makes it possible to work with sheets coming from both precut flanks and coils.
- the length of the sheets is independent of the capacity of the machine. This can be contrasted with automated cutting machines in which the length of the pieces produced is directly proportional to the capacity of the table and the positioning of the material to be cut. For example, the length of the pieces is generally limited to about 3 meters.
- Another advantage of the invention is that it makes it possible to organize the work and the flow of material that is optimal and economical. For example, the preparation of the marking can be performed separately, once the marking made on the sheet in a workshop. The sheet can then be shipped to the site or remain in the workshop where subsequent operations can be performed by less qualified personnel.
- the step of inserting the sheet into the driving means and the braking means preferably comprises the steps of: insert the sheet into the braking means;
- the invention proposes a marking system on a sheet metal intended for boilermaking use.
- the system includes a control unit configured to control the system; sheet drive means configured to exert a driving force on the sheet in a driving direction; braking means of the sheet, configured to exert on the sheet a braking force opposite to the driving force, so as to tension the sheet; and a marking head.
- the marking head is disposed between the drive means and the braking means.
- This system is adapted to carry out the method according to the invention.
- the system for tensioning and flattening the sheet can include any system implementing a mechanical effort.
- the system further comprises a plate insertion device on which the braking means is mounted.
- the insertion device comprises means for translational movement of the braking means between two positions:
- the insertion device makes it possible to bring the driving and braking means together to reduce the travel of the sheet during its positioning and thus to reduce the influence of the curvatures and folds of the sheet during the insertion thereof.
- the marking head comprises displacement means in translation, in a direction perpendicular to the marking plane between two positions: a working position in a marking plane, to optimize printing on the sheet; and a garage position remote from the marking plane, to allow the insertion of a sheet into the system.
- the system further comprises a guide table disposed between the braking means and the guide means, and configured to guide the sheet.
- a guide table disposed between the braking means and the guide means, and configured to guide the sheet.
- the marking head is configured to project an ink suitable for printing onto non-porous surfaces, preferably a solvent ink.
- the ink must dry quickly, for example before coming into contact with the drive means.
- the drive and / or braking means act on the plate by clamping.
- the drive means includes a pair of cylinders including a motor cylinder rotated by a motor, and a first pressing cylinder configured to press the plate against the drive cylinder.
- the driving cylinder is made of steel
- the first pressing cylinder is made of rubber.
- the engine cylinder is rotated by an electric motor.
- the drive means comprises a gear system, configured to slave the rotation of the first press cylinder to that of the drive cylinder.
- the braking means includes a pair of cylinders including a guide cylinder, and a second pressing cylinder configured to press the plate against the guide cylinder.
- the second pressing cylinder is configured to exert a variable pressure on the sheet.
- This variable pressure directly modifies the clamping effect and consequently the tension effect of the sheet, for example as a function of the material used.
- the braking means is a felt press system.
- the felt press is a mechanically simple and inexpensive element that can be used with a sheet of material not coated with plastic film or not subject to scratches.
- the system comprises a shear preferably disposed downstream of the system.
- the shear allows to cut the sheet to limit the length, and simplify the transport of the marked sheet.
- the system further comprises a decampling means disposed upstream of the system.
- the unclamping means comprises a guide table and three decambering rollers.
- an ink jet printing device is known from WO 2008150143.
- This document discloses an inkjet printing system on metal parts for the repair of boat hulls.
- the print head is driven in a rotational movement in addition to translational movements. It is a very complex system which implies that the print head is mounted on a rotating system. We found here also the disadvantage of not providing the insertion of the coil sheets.
- WO 2016017113 A1 Another known system of the state of the art is disclosed in WO 2016017113 A1.
- the system includes a printing unit configured to print on a surface of a metal sheet from a reel.
- the spool is unwound from an input side of the machine and wound on an output side.
- the sheet is transported in front of the printing unit around a rotating drum. The voltages created by the incoming and outgoing windings of the system hold the sheet against the rotating drum.
- This system makes it possible to print on a sheet of metal and uses sheet coming from coil.
- the printing on the sheet is done by a complex system comprising a printing unit comprising seven print heads, and a drying unit of the printed ink.
- Fig. 1 a schematic side view of a marking system according to a preferred embodiment of the invention
- Fig. 2 a simplified schematic side view of a marking system according to another preferred embodiment of the invention
- Fig. 3 a simplified schematic side view of a marking system according to another preferred embodiment of the invention.
- Figs 4a to 4c are schematic side views showing the steps of an embodiment of the method according to the invention with the system of Fig. 4a. 1, for the insertion of a stiff sheet.
- Figs 5a to 5d are schematic side views showing the steps of an embodiment of the method according to the invention with the system of Fig. 5a. 1, for the insertion of a flexible sheet.
- FIG. 1 A preferred embodiment of the system 10 according to the invention is shown in FIG. 1 and comprising a marking head 12, a control unit 13 configured to control the marking head 12, a driving means 14, a braking means 16, and an insertion device 27.
- FIG. 1 shows the system 10 in which a sheet 18 is inserted.
- the control unit 13 comprises any appropriate element.
- the control unit 13 makes it possible to control the marking of the sheet metal by the marking head 12, but according to the variants, the control unit also makes it possible to control, for example, the drive means 14, the braking device 16, and the insertion 27.
- the control unit 13 comprises communication means, not shown, with elements external to the system.
- the control unit 13 is able to receive information in digital format comprising control information or information to be processed by the control unit and to transmit them in the system as commands.
- control unit 13 receives data containing plans made by CAD / CAM type software by which the shapes of the three-dimensional parts have been transformed into two-dimensional projections and on the basis of these data, the marking of the sheet will be achieved using the marking head.
- the marking head 12 may be, for example, a suitable inkjet printhead, or a laser printhead, or any suitable printhead.
- laser printing is faster than inkjet printing. It is also and above all a more expensive system than a system using an inkjet head. But with the price difference going down, laser printing could quickly become a preferred choice.
- an ink jet print head will be used as an example.
- the ink used is a solvent ink that dries quickly on a metal surface.
- the marking head 12 is fixed on a frame, not shown. It comprises displacement means in translation, not shown, according to a marking plane, which is preferably horizontal.
- the marking head 12 also comprises displacement means in translation in a direction perpendicular to the marking plane.
- the translation of the head 12 in the direction perpendicular to the marking plane is between two positions: a working position in which the head is in the marking plane; and a garage position in which the head is remote from the marking plane to allow the insertion of a sheet into the system.
- the translational movement means of the marking head may comprise any suitable means such as a geared motor, a hydraulic system.
- Sheet 18 is made of a material suitable for boilermaking such as steel, aluminum, stainless steel or composite material.
- the plate 18 is driven in front of the marking head in a plane parallel to the marking plane, from the braking means 16 to the drive means 14, along a line known as the P-line.
- the drive means 14 comprises two cylinders, including a motor cylinder 20 and a first pressing cylinder 22.
- the two cylinders 20, 22 are, in operation, arranged on either side of the plate 18 and act on the sheet 18 by clamping.
- the driving cylinder 20 is a cylinder, preferably made of steel, rotated by a motor, not shown. Any suitable motor can be used to drive the cylinder such as an electric motor.
- a gear system can slaved the rotation of the first pressing cylinder 22 to that of the drive cylinder 20 so as to enhance the driving action of the cylinders 20, 22.
- the first pressing cylinder can instead be mounted free in rotation relative to the frame.
- the first pressing cylinder 22 is here a rubber cylinder configured to exert a pressing force on the sheet 18.
- the resistance of the drive cylinder 20 to the pressure force makes it possible to constrain the sheet between the two cylinders 20, 22 of the means drive.
- the drive cylinder 20 When the drive cylinder 20 is rotated, the sheet 18 pressed between the drive cylinder 20 and the first press cylinder 22 is driven in the direction of rotation of the drive cylinder 20.
- the drive direction corresponds to an orientation following the pass line P in a direction opposite to the braking means 16.
- the drive means 14 then applies a driving force to the sheet shown in FIG. 1 by an arrow Fe, in the driving direction.
- the first pressing roll comprises a clamping device, not shown, which makes it possible to adjust the spacing between the rolls of the drive means and to obtain a variable clamping force on the sheet.
- the braking means 16 is mounted on the insertion device 27.
- the insertion device 27 is symbolized by a rectangle in the Figures. It serves as a support for the braking means 16, and comprises means for translational movement of the braking means 16 between an insertion position in the vicinity of the drive means 14 and an operating position away from the intermediate means.
- any suitable moving means may be used, such as a guide rail and / or wheels.
- the braking means 16 here comprise two preferably rubber cylinders, including a guiding cylinder 24, and a second pressing cylinder 26. In a similar manner to the driving means, the two cylinders 24, 26 are in operation both sides of the plate 18 and act on the plate 18 by clamping.
- the guide cylinder 24 serves to support the sheet 18.
- the guide cylinder 24 can be mounted free to rotate relative to the insertion device 27.
- the braking means 16 can be actuated between an open position in which the second pressing cylinder 26 is away from the guide cylinder 24; and a closed position in which the second pressing cylinder 26 exerts pressure against the guide cylinder 24.
- the actuation of the braking means 16 can be controlled manually or by any suitable means.
- the drive means 14 drives the sheet 18, the latter progresses in the braking means 16 causing the rolls of the braking means 16 to rotate against the inertia of the rolls.
- This inertia creates a braking force shown in FIG. 1 by an arrow Ff exerted on the plate 18 in the opposite direction to the driving force Fe.
- the braking force Ff is directly related to the sliding at the contact between the plate 18 and the braking means 16.
- the pressing force of the pressing cylinder 26 is preferably variable. Therefore, the pressing force exerted by the second pressing cylinder can determine and control the braking force Ff.
- the play of the braking forces and driving forces is configured to scroll the sheet along the pass line P, in front of (below) the marking head, which moves transversely to the pass line P. It becomes possible to mark the sheet over its entire width and over its entire length.
- the driving force Fe must obviously be greater than the braking force Ff. It is obviously also possible to move the marking head in two directions of the marking plane and keep the sheet stationary (having the same driving forces and braking).
- the braking means 16 comprises a felting press.
- the felting press comprises two felt blocks 28, which in operation are disposed on either side of the sheet 18, and a variable clamping device, not shown, of the two felt blocks 28 against the sheet 18.
- the press felts can be mounted in translation relative to the insertion device 27 and performs the guiding function while exerting a braking force on the sheet.
- Any suitable variable clamping device may be used, such as hydraulic or pneumatic pistons, or a mechanical clamping system.
- a felting press in the braking means is advantageous because inexpensive compared to cylinders.
- the drive means 14 and the braking means 16 respectively apply opposing forces Fe, and Ff to the plate 18.
- the plate 18 is then brought into tension between the drive and braking means 14, 16. This tensioning makes it possible to eliminate the folds present on the sheet
- the surface of the sheet 18 is then easily maintained in a parallel plane, at a predetermined distance d from the marking plane.
- the system also includes a shear 30 for cutting the sheet over its entire width.
- the shear 30 is preferably used when the plate 18 is from a coil 32 and only a part of the coil 32 is needed in a project.
- the shear 30 may also be useful in all cases where the sheet is to be divided into shorter sections.
- the shear 30 is advantageously installed at the output of the system, that is to say after the drive means in the driving direction, so as to keep the sheet inserted between the driving and braking means.
- the shears 30 can also be installed at the input of the system, before the braking means in the driving direction, or in any other appropriate position.
- the tagging information is prepared. This preparation can be done on a separate system with drawing software or specialized software in the field of boilermaking. The software provides sufficient support for this step to be performed by a less qualified technician than a tracer.
- the data can be transmitted by any appropriate means such as a wired or wireless network.
- the sheet Before starting the marking of the sheet, the sheet is inserted into the braking means 16 and into the driving means 14. Preferably, braking means 16 to the drive means 14.
- the method of inserting the sheet into the system is conditioned by the nature of the sheet as described above.
- the insertion of a stiff sheet, the insertion of a flexible sheet metal, the insertion in the form of sheet metal flange and the insertion of sheet metal from coils will be distinguished.
- the insertion of a stiff sheet, for example a flat sheet metal flank, is described with reference to FIGS. 4a to 4c.
- the marking head 12 is in the working position and the braking means 16 is open.
- the plate 18 is inserted between the cylinders of the braking means 16.
- the sheet 18 is pushed manually or mechanically into the braking means, that is to say between the second pressing cylinder 26 and the guiding cylinder 24.
- the sheet 18 is pushed until it enters the drive means between the first pressing cylinder 22 and the driving cylinder 20.
- the second pressing cylinder 26 is moved against the sheet to put the braking means 16 in the closed position.
- the sheet 18 is then held by clamping in the braking means 16.
- the sheet 18 is pushed or pulled until it enters the drive means between the first pressing cylinder 22 and the driving cylinder 20.
- the drive cylinder 20 is turned on and the driving means 14 exerts on the sheet 18 a driving force in the drive direction.
- the braking means 16 exerts a braking force in the opposite direction to the driving force so as to tension the sheet.
- the sheet 18 is then stretched and has a flat surface on which the marking head is able to perform the marking.
- the braking means 16 is open.
- the sheet is pushed manually or mechanically into the braking means 16, that is to say between the second pressing cylinder 26 and the guiding cylinder 24.
- the second pressing cylinder 26 is moved against the plate 18 so as to put the means of braking 16 in the closed position. The sheet is then held by clamping in the braking means 16.
- the marking head 12 is then moved to the parking position and the insertion device 27 is actuated to move the braking means 16 into its insertion position. As shown in FIG. 5b, in the insertion position, the braking means 16 is close to the drive means 14, almost in contact with the drive means 14.
- the marking head 12 is sufficiently far from the marking plane so that the braking means 16 can approach the drive means 14 without coming into contact with the marking head 12.
- the sheet 18 is pushed or pulled until it enters the drive means between the first pressing cylinder 22 and the driving cylinder 20.
- the insertion device 27 is actuated to move the braking means 16 into its operating position. This step can be performed simultaneously with the startup of the engine cylinder 20.
- the braking means 16 is sufficiently far from the drive means 14 to allow printing on the sheet by the marking head 12.
- the sheet 18 is then stretched and has a flat surface on which the marking head is able to perform the marking.
- the last insertion step consists of returning the marking head 12 to the working position in the marking plane at a distance d from the sheet.
- This mode of operation could be preferential for users working more exclusively stiff materials, for example having already been subject to straightening or planing.
- the guide table can also be replaced by guide rails or any other system for guiding the sheet.
- guide rails have U-shaped profiles that face each other can be used.
- the U-shaped profiles are then configured to form housings for the edges of the sheet.
- the insertion device can be deleted.
- the marking head 12 is disposed at a predetermined distance d from the sheet, between the driving and braking means.
- the marking on the sheet 18 can be initialized using a fast-drying ink, for example a solvent-based ink.
- the drive means 14 scroll the sheet 18 in front of the marking head 12 along the line P.
- the marking head 12 moves transversely to the pass line P so as to cover the width of the The movements of the marking head and the sheet can be synchronized by the control unit 13.
- assemblies of shaped parts are typically screwed.
- holes with a diameter of about 3.2 to 3.3 mm must be punched.
- the locations of the holes may also be marked on the sheet.
- the punching work can be done for example on another machine equipped with a punch.
- the positioning of the punch is usually done by a low emission laser projection of a circle aligned with a marked geometric reminder on the sheet.
- geometric reminders in any form such as for example points, or crosses, can be advantageously marked on the circumference of a circle centered on the punch hole.
- the system further comprises a decampling means disposed upstream of the system.
- the unclamping means comprises, for example, a guide table and a set of three decambering rollers.
- the decampling means makes it possible to prepare the sheet before it is inserted into the system so as to have a sheet which is relatively flat and easy to handle.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Coating Apparatus (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Laser Beam Processing (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2018/5113A BE1026112B1 (fr) | 2018-02-26 | 2018-02-26 | Traçage sur une tôle destinée à un usage en chaudronnerie |
PCT/EP2019/054280 WO2019162361A1 (fr) | 2018-02-26 | 2019-02-21 | Traçage sur une tôle destinée à un usage en chaudronnerie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3759389A1 true EP3759389A1 (fr) | 2021-01-06 |
EP3759389B1 EP3759389B1 (fr) | 2024-05-01 |
Family
ID=61626855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19705766.4A Active EP3759389B1 (fr) | 2018-02-26 | 2019-02-21 | Traçage sur une tôle destinée à un usage en chaudronnerie |
Country Status (7)
Country | Link |
---|---|
US (1) | US11364729B2 (fr) |
EP (1) | EP3759389B1 (fr) |
JP (1) | JP7321538B2 (fr) |
CN (1) | CN112204306B (fr) |
BE (1) | BE1026112B1 (fr) |
EA (1) | EA038843B1 (fr) |
WO (1) | WO2019162361A1 (fr) |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4144808A (en) * | 1976-06-16 | 1979-03-20 | Fuji Photo Film Co., Ltd. | Electrophotographic marking apparatus |
JPS548188U (fr) * | 1977-06-20 | 1979-01-19 | ||
DE4038717A1 (de) * | 1990-12-05 | 1992-06-11 | Saulius Baublys | Einrichtung zum elektro-chemischen beschriften von werkstuecken |
JPH07323312A (ja) * | 1994-05-31 | 1995-12-12 | Toshiba Corp | 電動機の速度制御装置及び圧延材の張力制御装置 |
JPH11207664A (ja) * | 1998-01-22 | 1999-08-03 | Koike Sanso Kogyo Co Ltd | マーキング装置 |
EP1068957B1 (fr) * | 1999-07-09 | 2003-08-27 | Seiko Epson Corporation | Imprimante et son procédé de commande |
JP2003136132A (ja) * | 2001-10-30 | 2003-05-14 | Kawasaki Heavy Ind Ltd | ピンチロール装置 |
JP3699411B2 (ja) * | 2002-03-19 | 2005-09-28 | 株式会社淀川製鋼所 | 印刷金属板の製造方法およびその印刷装置 |
JP2006068654A (ja) * | 2004-09-03 | 2006-03-16 | Hitachi Industries Co Ltd | 建材用金属板の製造装置 |
KR100868232B1 (ko) * | 2007-06-07 | 2008-11-12 | 삼성중공업 주식회사 | 형강 절단 시스템의 마킹장치 |
CN101104341B (zh) * | 2007-07-23 | 2010-10-06 | 鞍钢股份有限公司 | 钢板标记打印机 |
CN102811834B (zh) * | 2009-12-22 | 2016-01-20 | Skf公司 | 利用修改其中形成标记节段的序列标记金属部件表面的方法 |
KR101500236B1 (ko) * | 2013-12-23 | 2015-03-06 | 주식회사 포스코 | 무결함 도장강판 및 그 제조방법 |
CN104015498B (zh) * | 2014-05-28 | 2016-05-04 | 阿博建材(昆山)有限公司 | 一种具有自动夹持定位功能的打标装置 |
JP2016030356A (ja) | 2014-07-28 | 2016-03-07 | セイコーエプソン株式会社 | 印刷装置、印刷方法、印刷物 |
KR20170052740A (ko) * | 2015-11-03 | 2017-05-15 | 주식회사 포스코 | 잉크젯 프린팅을 이용한 코팅 강판의 제조장치 및 그 제조방법 |
JP6735824B2 (ja) * | 2015-11-03 | 2020-08-05 | ポスコPosco | インクジェットプリンティングを利用したコーティング鋼板の製造装置 |
-
2018
- 2018-02-26 BE BE2018/5113A patent/BE1026112B1/fr active IP Right Grant
-
2019
- 2019-02-21 WO PCT/EP2019/054280 patent/WO2019162361A1/fr unknown
- 2019-02-21 CN CN201980028488.XA patent/CN112204306B/zh active Active
- 2019-02-21 EA EA202092020A patent/EA038843B1/ru unknown
- 2019-02-21 JP JP2020568030A patent/JP7321538B2/ja active Active
- 2019-02-21 US US16/971,818 patent/US11364729B2/en active Active
- 2019-02-21 EP EP19705766.4A patent/EP3759389B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
EA202092020A1 (ru) | 2021-01-11 |
JP7321538B2 (ja) | 2023-08-07 |
BE1026112A1 (fr) | 2019-10-11 |
EA038843B1 (ru) | 2021-10-27 |
US11364729B2 (en) | 2022-06-21 |
BE1026112B1 (fr) | 2019-10-17 |
WO2019162361A1 (fr) | 2019-08-29 |
EP3759389B1 (fr) | 2024-05-01 |
JP2021516201A (ja) | 2021-07-01 |
US20210362512A1 (en) | 2021-11-25 |
CN112204306B (zh) | 2022-10-04 |
CN112204306A (zh) | 2021-01-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2964436B1 (fr) | Agencement reglable de transformation d'un support plan, cassette, unite et machine ainsi equipee | |
JP5437771B2 (ja) | ウェブの接合装置、ウェブの接合方法、および機能性フィルムの製造方法 | |
JP6383196B2 (ja) | カッティングプロッタ | |
FR2692875A1 (fr) | Appareil de pliage pour la réalisation d'exemplaires pliés à partir d'une bande de papier imprimée. | |
EP3492249A1 (fr) | Procédé et installation de bobinage d'une bande de tissu pré-imprégnée sur une surface inclinée | |
EP3512684B1 (fr) | Procédé et dispositif d'extrusion et d'étiquetage d'un produit cylindrique | |
EP2964435A1 (fr) | Procédé de réglage de l'intervalle radial entre deux outils, agencement de transformation d'un support, cassette, unité, et machine ainsi équipée | |
JP2007099445A (ja) | 粘着テープ貼付け装置 | |
EP2738105B1 (fr) | Procédé et machine d'assemblage de corps tubulaires rigides en matériau cartonné avec une structure obturante | |
EP3759389B1 (fr) | Traçage sur une tôle destinée à un usage en chaudronnerie | |
US20210179301A1 (en) | Banding of objects with tape | |
JP2008007249A (ja) | 粘着テープ貼付け装置 | |
EP2145755A1 (fr) | Procédé de formage de profilés de section angulaire et dispositif pour la mise en oeuvre de ce procédé | |
CN110588235A (zh) | 一种墙贴辅助装置 | |
EP1590850B1 (fr) | Dispositif de coupe de fin d enroulement d un element de batterie enroule lithium-polymere | |
EP1581977B1 (fr) | Derouleur-aligneur pour machine a bobiner des films | |
EP1897812B1 (fr) | Dispositif pour distribuer des étiquettes adhérant sur une bande-support | |
CA2511581C (fr) | Dispositif de pilotage d'entrainement de films dans un dispositif de realisation d'ensembles multicouches | |
JP2005139005A (ja) | 接合紙管及びその製造方法並びに製造装置 | |
BE1011594A3 (fr) | Procede de decoupage d'affiches et dispositif pour sa mise en oeuvre. | |
FR2658124A1 (fr) | L'enroulement d'un rouleau de papier dans une machine a dessiner automatique du type ou le papier est entraine. | |
JP2002144692A (ja) | 孔版印刷装置 | |
JP4788651B2 (ja) | シート切断方法、合成紙切断方法、およびシート切断装置 | |
FR2871098A1 (fr) | Dispositif d'approvisionnement d'une imprimante en materiau en feuille et imprimante equipee d'un tel dispositif d'approvisionnement | |
FR2886576A1 (fr) | Procede de production de bandes armees |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
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 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20200923 |
|
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 |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
REG | Reference to a national code |
Ref document number: 602019051314 Country of ref document: DE Ref country code: DE Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: F22B0037000000 Ipc: B41M0005000000 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F22B 37/36 20060101ALI20231107BHEP Ipc: F22B 37/00 20060101ALI20231107BHEP Ipc: B41J 3/413 20060101ALI20231107BHEP Ipc: B41M 5/00 20060101AFI20231107BHEP |
|
INTG | Intention to grant announced |
Effective date: 20231123 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 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 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602019051314 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |