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EP3492230A1 - Procédé et système de fabrication de plaques de formage complexe - Google Patents

Procédé et système de fabrication de plaques de formage complexe Download PDF

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Publication number
EP3492230A1
EP3492230A1 EP17204312.7A EP17204312A EP3492230A1 EP 3492230 A1 EP3492230 A1 EP 3492230A1 EP 17204312 A EP17204312 A EP 17204312A EP 3492230 A1 EP3492230 A1 EP 3492230A1
Authority
EP
European Patent Office
Prior art keywords
plate
multipoint
module
flexible membrane
press
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.)
Withdrawn
Application number
EP17204312.7A
Other languages
German (de)
English (en)
Inventor
Thomas Fankhauser
Benjamin Fankhauser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Woodtec Fankhauser GmbH
Original Assignee
Woodtec Fankhauser GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Woodtec Fankhauser GmbH filed Critical Woodtec Fankhauser GmbH
Priority to EP17204312.7A priority Critical patent/EP3492230A1/fr
Publication of EP3492230A1 publication Critical patent/EP3492230A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
    • B27D1/083—Presses specially designed for making the manufacture of shaped plywood articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/08—Manufacture of shaped articles; Presses specially designed therefor

Definitions

  • the invention relates to the production of complex designs.
  • Such a multi-point tool has a plurality of height-adjustable punches, which approximately simulate a plurality of complex surfaces.
  • Such a multipoint tool is described, for example, in the conference article " Vacuum Assisted Multipoint Molding -A Reconfigurable Tooling Technology for Producing Spatially Curved Single-Item CFRP Panels "by Matthias SJ Wimtner et al., Procedia CIRP 57 (2016) 368-373 described.
  • a so-called interpolation layer must be arranged on the stamps.
  • either clay or a thermoplastic or an elastic rubber layer is proposed.
  • the elastic rubber layer is replaced by a Vacuum chamber, in which the multipoint tool is integrated, sucked on the stamp, so that the elastic rubber layer, the stamp shapes compensated.
  • a multi-point tool which requires a vacuum chamber to form the mold, is very cumbersome and not useful for making complex shapes in construction. Even an impression of the stamp in the concrete is excluded for visible surfaces in construction.
  • the punches would still be visible due to the weight of the concrete. Therefore, multi-point tools have not yet been used to fabricate complex surfaces for structures.
  • This object is achieved by a method comprising the steps of: adjusting heights of height-adjustable actuators of a multipoint module based on a predetermined shape; Placing a disk on the multipoint module; Placing a flexible membrane on the plate; and pressing the plate with the flexible membrane against the actuators to press the plate into the predetermined shape.
  • a plate can be easily brought into a complex shape.
  • the applications for this process are numerous, especially for the manufacture of complex surfaces under construction.
  • the rigidity of the plate causes the plate itself to provide interpolation between the pressure points and no interpolation layer is needed.
  • a multipoint module which has a rack for positioning the multipoint module and a plurality of Positioning elements, wherein each actuator has a punch with an upper side and at least one lateral side and an adjusting mechanism, wherein the adjusting mechanism is adapted to adjust the height of the upper side of the punch relative to the frame.
  • This object is also achieved by a system with such a multipoint module and a press with a flexible membrane.
  • the step of disposing a plate comprises stacking at least two, preferably at least three, plate layers and applying adhesive between the plate layers. If the adhesive cures during the pressing of the plate in the predetermined shape, so can produce a plate with the permanently complex shape. As a result, large-scale complex plate shapes, e.g. Made of wood, and with good statics. This would mean a revolution in timber construction.
  • the method comprises the steps of pouring a liquid building material, in particular concrete, onto the elastic membrane stabilized by the pressed plate and curing the liquid building material.
  • the multipoint module and the vacuum press are two separate parts, so that the multipoint module and the vacuum press can be moved freely relative to each other and / or the heights of the height-adjustable control elements of the multipoint module can be adjusted independently of the vacuum press.
  • the vacuum press and the multipoint module can each be easily manufactured. Different multipoint modules can be combined to form a large complex area which is limited only by the size of the vacuum press. This solution allows a maximum degree of flexibility. This also has the advantage that during the pressing process of a plate, the next mold to be pressed can already be set to further multipoint modules. Thus, the production times can be further shortened.
  • the actuator or its stamp touch. This has the advantage that during the pressing of the plate against the adjusting elements, these stabilize each other and do not move. This effect is significantly improved if the flexible membrane also applies the pressing pressure laterally to the adjusting elements or stamp.
  • the actuators are arranged in a four-pack. This pack has been found to be optimal.
  • the stamp is round.
  • the multipunk module is rectangular, preferably square. This allows easy to assemble larger shapes from a plurality of multipoint modules.
  • the upper side of the actuator or the punch is curved / curved. As a result, each actuator generates only one pressure point.
  • the system has a separate device for adjusting the multipoint module.
  • the multipoint modules are respectively set on the adjusting device on the basis of the predetermined shape and then assembled (on the vacuum press) to the predetermined shape.
  • the multi-point modules can be carried out very easily because the automatic adjustment in the adjustment is available. This is particularly advantageous when very large shapes with many multipoint modules are used.
  • Fig. 1 and 2 show an embodiment of a multipoint module.
  • the multipoint module 1 preferably has an upper side and a lower side opposite the upper side.
  • the terms "upper side” and “lower side” are not intended to limit the possible positioning of the multipoint module 1.
  • the lower side is indeed placed on a flat surface.
  • the multipoint module 1 has a rectangular, preferably a square shape with four lateral sides (see Fig. 1 ), since so multiple multipoint modules 1 can be easily assembled to larger multipoint areas.
  • the side length of the square multipoint module 1 is, for example, greater than 50 cm, preferably greater than 1 m, possibly even greater than 2 m.
  • the side length of the square multipoint module 1 is, for example, less than 5 m, preferably less than 3 m, preferably less than 2 m. Preferably, the side length is 1 m.
  • the four lateral sides are preferably arranged perpendicular to the lower side. However, too conceivable other cross-sectional shapes, such as circular, triangular, hexagonal multipoint modules 1.
  • the multipoint module 1 has a frame 11 and a plurality of adjusting elements 10.
  • Each actuator 10 has an actuating mechanism and a punch 12.
  • the punch 12 is preferably roughly cylindrical.
  • the punch 12 preferably has an upper side 15, a lower side opposite the upper side and at least one lateral side.
  • the dimension from the upper side to the lower side of the punch 12 should be referred to as the length, the dimension of the punch 12 at right angles thereto as width or diameter.
  • the punch 12 is preferably wider than 3 cm, preferably wider than 5 cm, preferably wider than 7 cm.
  • the punch 12 is preferably narrower than 30 cm, preferably narrower than 20 cm, preferably narrower than 15 cm, preferably narrower than 12 cm.
  • the width of the punch 12 is 10 cm.
  • the upper side 15 of the punch 12 is preferably directed to the upper side of the multipoint module 1.
  • the upper sides 15 of all stamps 12 form the upper side of the multipoint module 1.
  • the lower side of the punch 12 is preferably directed to the lower side of the multipoint module 1.
  • the upper side 15 of the punch 12 is preferably curved or curved. Particularly advantageously, the upper side 15 is formed as a spherical segment. Due to the curvature of the upper side 15 can be achieved that each stamp 12 generates despite its lateral extent only one pressure point on a pressed plate.
  • the punch 12 has a circular cross section (sectional plane perpendicular to the height adjustment direction). In this case, the lateral side thus forms the lateral surface of the circular cylinder.
  • stamp 12 it is also possible to use stamp 12 with a triangular, quadrangular, square, hexagonal, or other cross-sectional shape. In these cases, the punches would form several lateral sides.
  • the stamp 12 is preferably made of a torsionally rigid and pressure-resistant Material, preferably made of metal, preferably made of steel.
  • the punch 12 is preferably hollow.
  • the punches 12 are formed as tubes which are closed on the upper side 15 by the curvature and on the lower side by a wall in which a threaded recess 13 (a bearing for the adjusting mechanism) is located.
  • the adjusting mechanism is designed to connect the punch 12 vertically adjustable with the frame 11.
  • the adjusting mechanism is designed to adjust the height of the upper side 15 of the punch 12 relative to the frame 11.
  • the adjusting mechanism is designed to be able to adjust the height of the upper side 15 independently of the height of the upper side 15 of the other punch 12.
  • the multipoint module 1 is thus designed to be able to set the height of the upper side 15 of the punches 12 of the adjusting elements 10 independently of one another, so that each ram 12 can assume an arbitrary height.
  • the adjusting mechanism (purely) is mechanically formed.
  • the adjusting mechanism has a threaded rod 14 which is connected at one end to the punch 12 and at the second end to the frame 11.
  • the height of the punch 12 can thus be adjusted.
  • the threaded rod 13 is screwed into a threaded recess 13, so that rotation of the threaded rod 14 causes a height adjustment of the punch 12.
  • the threaded recess 13 is arranged in the punch 12, so that when a change in height of the actuating element 10, the threaded rod 14 is more or less screwed into the punch 12.
  • the threaded rod 14 is approximately as long as the punch 12.
  • a lateral pressure is preferably exerted on the lateral sides of the multipoint module 1, in particular on the lateral sides of the punch 12, so that the stamp 12 does not rotate when turning the threaded rods 14.
  • the threaded recess 13 can also be arranged in the frame 11, but this has the disadvantage that the threaded rods 14 protrude more or less under the frame 11 depending on the set height.
  • the lower end of the threaded rod 14th a rotatably connected to the threaded rod 14 rotating means 17, preferably a screw head, such as a hexagon, on.
  • the threaded rod is rotatably mounted in the frame 11.
  • the threaded rod 14 is guided through a recess 18 in the frame 11 and secured by a non-rotatably connected to the threaded rod 14 locking means 19, such as a welded or otherwise attached locknut in this position.
  • the mounting of the threaded rod 14 in the frame 11 is preferably designed so that the threaded rod can rotate about its axis of rotation, but can not change its translational position.
  • An advantage of this adjusting mechanism is that the rotating means 17 are easily accessible on the lower side of the multipoint module 1 and require little space. This is just one embodiment of the realization of an actuating mechanism. Many other embodiments are possible.
  • the rotating means 17 is only one possible adjusting means to operate the adjusting mechanism.
  • all the adjusting elements 10 are identical. However, it is also possible to form actuating elements 10 differently.
  • at least the punches 12, the adjusting mechanisms and / or the adjusting means 17 of all the position elements 10 of the multipoint module 1 are the same.
  • the frame 11 carries the plurality of adjusting elements 10, in particular their adjusting mechanisms, for example the threaded rods 14.
  • the adjusting elements 10 are all mounted in a mounting plane in the frame 11 / stored.
  • this attachment plane is parallel to the lower side.
  • the frame 11 is formed as a plate (eg as a bottom plate).
  • the bottom plate is preferably arranged in the mounting plane.
  • the frame 11 preferably has a bearing means 16 on which the multipoint module 1 can be turned off.
  • the bearing means 16 is formed so that the multipoint module 1 can be stably parked on a flat surface.
  • this flat surface is parallel to the mounting plane.
  • the adjusting means 17 of the adjusting mechanisms of the adjusting elements 10 are arranged between these two levels.
  • the bearing means 16 are formed here as arranged on the bottom plate 11 skirting.
  • the frame 11 is designed to allow access to the adjusting means 17. This access is preferably from the lower side of the multipoint module 1. This access should be possible by machine, so that the control elements 10 can be adjusted by a machine or a robot.
  • the frame 11 or the base plate per adjusting element 10 preferably has a measuring opening (not shown). The measuring opening is arranged in the projection of the punch 12 on the mounting plane. The measuring aperture allows passage from the lower side to the punches 12. This can be used to measure the currently set height of a punch 12 from the lower side.
  • the measurement can be done relative to an arbitrarily defined points of the punch 12. This is preferably the lower wall in the punch 12, which has the threaded recess 13.
  • a measuring device is placed at a defined point of the frame 11, so that the height of the punch 12 can be determined on the basis of the defined points.
  • the frame 10 defines the arrangement of the adjusting elements 10 in the multipoint module 1.
  • adjacent adjusting elements 10 touch each other.
  • the adjusting elements 10 and stamp 12 are arranged in a four-pack.
  • each (central) control element 10 or each (central) punch 12 touches four adjacent control elements 10 or punch 12.
  • the points of contact are each 90 ° apart.
  • Stamps 12 in the marginal area and in the corners only touch 3 and 2 adjacent stamps 12.
  • a central stamp 12 contacts the adjacent stamps along a line. This requires a lower manufacturing precision of the punches 12 as compared to a touch surface such as square punches.
  • the punches 12 are preferably arranged in a rectangular grid, with the puncturing centers respectively disposed at the lattice nodes.
  • the punches 12 have the same distance in each grid direction
  • the first grid direction is parallel to two lateral sides of the multipoint module 1 and the second grid direction are parallel to the two further lateral sides of the multipoint module 1.
  • the first grid direction is perpendicular to the second grid direction.
  • the first grid direction is the connecting line of the centers and the points of contact of the adjusting elements 10.
  • the adjusting elements 10 form a plurality of first grid lines in the first grid direction.
  • the second grid direction is the connecting line of the centers and the points of contact of the adjusting elements 10, which is perpendicular to the first grid direction.
  • the adjusting elements 10 form a plurality of second grid lines in the second grid direction.
  • This realization has the advantage that the pressure exerted by the vacuum press laterally on the multipoint module 1 is transmitted directly to the individual grid lines of the punches 12.
  • other packages such as a hexagonal packing (each stamp 12 touches 6 adjacent stamps with a distance of 60 °) are possible.
  • the possible packages also depend on the shapes of the stamp 12.
  • Fig. 3 now shows a system for pressing plates in a predetermined shape.
  • the predetermined shape is preferably curved, ie does not correspond to a straight plane.
  • the system has a press 20 and at least one multipoint module 1.
  • At least one multipoint module 1 is adjusted so that the upper sides 15 of the adjusting elements 10 simulate the predetermined shape.
  • each actuator 10 of the at least one multipoint module 1 must be set to the correct height.
  • at least two multipoint modules 1 must be assembled to emulate the predetermined shape.
  • the multipoint modules 1 are placed side by side, so that the upper sides 15 of the adjusting elements 10 of the multipoint modules 1 form a common predetermined shape or (curved) surface.
  • the multipoint modules 1 are placed side by side so that the edge punches 12 adjacent multi-point modules 1 touch, preferably in the same way touch as the punch 12 of the same multipoint module 1.
  • the multipoint modules 1 are formed so that the juxtaposed multipoint modules 1 have the same side lengths and are the same.
  • a correct alignment of the punches 12 can be achieved.
  • adjacent multipoint modules 1 are formed differently. For example, for a region with very rapid shape changes, a multipoint module 1 with narrower and correspondingly more punches 12 could be used, while wider punches 12 are used in a second region with slower changes. It is also possible that there are multipoint modules 1 of different size. However, it would be advantageous for the side length of the first multipoint module to be equal to the (simple or) twice the side length of the second multipoint module.
  • each multipoint module 1 can be replaced by 4 smaller multipoint modules 1.
  • the attachment means is preferably designed so that it allows the attachment of two multipoint modules 1 only in the correct orientation of the two modules 1 to each other.
  • new multi-point modules 1 can be connected to four sides of a multipoint module 1. If the predetermined shape have a height difference which is greater than the maximum setting height of the adjusting elements 10, then the adjacent multipoint module 1 must be placed on a height adapter 24.
  • the height adapter 24 forms on a lower side of a footprint for a flat surface and on the upper side of a footprint for a multi-point module 1.
  • the height of the height adapter 24, ie the distance between the upper and the lower side (which are parallel) is less than or equal to the maximum setting height of the adjusting elements 10. Due to the modularity of the multipoint modules 1, an arbitrarily large shape can thus be assembled.
  • a plate 30 is now arranged on the predetermined shape formed by the at least one multipoint module 1.
  • the press 20 is adapted to exert a pressure on the plate 30, which presses the plate 30 against the upper sides 15 of the adjusting elements 10 of the at least one multipoint module 1.
  • the plate 30 assumes the preset on the at least one multi-point module 1 predetermined shape.
  • the press 20 preferably has a flexible membrane 22 and is designed to exert a pressing pressure on the plate 30 by means of a pressure difference applied to the membrane 22 with the membrane 22.
  • the press 20 is a vacuum press.
  • the vacuum press 20 has a closed by the flexible membrane 22 vacuum chamber.
  • the vacuum press preferably has a vacuum pump which draws a medium (usually air) from the vacuum chamber and creates a vacuum in the vacuum chamber.
  • the term vacuum is used here as a synonym of negative pressure relative to the pressure outside the vacuum chamber.
  • the at least one multipoint module 1 having the preset predetermined shape and the plate 30 disposed thereon are placed in the vacuum chamber of the vacuum press 20.
  • the vacuum press has a flat Vakuumstell Structure 21, on which the at least one Multipunkmodul 1 can be arranged.
  • This vacuum pad 21 preferably has an opening connected to the vacuum pump, through which the medium can be sucked out of the vacuum chamber.
  • the Vakuumstell configuration 21 or the vacuum chamber with the at least one multipoint module 1 and the plate 30 are covered by the flexible membrane 22 and completed so that between the vacuum point surface 21 and the vacuum chamber and the flexible membrane 22, the vacuum chamber is formed.
  • the pressure of the flexible membrane 22 on the plate 30 can be accurately adjusted.
  • the pressure should be adjusted so that the plate 30 assumes the predetermined shape, that touches all stamp 12. This point of contact of the plate 30 on the curved upper side 15 of the actuating element 10 is referred to as a pressure point 31.
  • the pressure should not be so high that the flexible membrane 22, the plate 30 between two pressure points adjacent Adjusting elements 10, ie, the pressure point expands radially to a pressure surface, so that the curved upper sides 15 of the punch 12 in the plate 30 emerge.
  • This pressure can be calculated, for example, from the material parameters of the plate 30.
  • touch or pressure sensors could be incorporated into the actuators 20 that sense a touch or pressure on each actuator 20.
  • This sensor matrix which detects the touch or pressure for all actuators 20, can be sent wirelessly to a control center, which increases the pressure until the plate 30 touches all the actuators 10 of the at least one multipoint module 1.
  • the flexible membrane 22 is guided along the lateral sides of the punches 12, which extend along the lateral sides of the at least one multipoint module 1.
  • the flexible membrane 22 is guided over more than 50%, preferably more than 70%, preferably more than 90%, preferably over 100% of the length of the stamp 12 along the lateral sides of the at least one multipoint module 1.
  • the pressure of the flexible membrane 22 on the lateral sides of the punches 12 holds them together so that the pressure points remain very precisely positioned.
  • all punches 12 in the at least one multi-point module 1 rest laterally on the adjacent punch 12 and possibly on the pressure-exerting flexible membrane 22, all punches 12 together form a very stable forming block.
  • the same pressure is thus exerted on the lateral sides of the punches 12 on all lateral sides of the at least one multipoint module 1, so that the lateral pressures cancel on the at least one multipoint module 1.
  • a blocking means is arranged between the frame 11 and the punch 12, which prevents the flexible membrane 22 between the threaded rods 14 is sucked.
  • the blocking means 23 may be a simple sheet or grid. Such can be mounted on the frame 11, for example.
  • the described method and system has several applications.
  • the plate 30 consists of at least two, preferably at least three stacked plate layers. Between the plate layers a (not yet cured) adhesive is applied. The application of adhesive between the plate layers may also include soaking the plate layers in adhesive. By pressing the plate 30 against the adjusted adjusting elements 10 of the at least one multipoint module 1, the plate 30, and thus the at least two plate layers assumes the predetermined shape. If one then lets the adhesive harden between the plate layers in the press, then the plate 30 retains its shape even after the release of the pressing pressure. The curing of the adhesive may be accelerated by, for example, heat application. This can be achieved, for example, by heating means in the adjusting elements 10.
  • a heating mat could be placed between the plate 30 and the flexible membrane 22 or the at least one multi-junction module 1 which generates the heat directly on the plate.
  • This method is particularly suitable for the production of wood panels of any shape.
  • the plate layers could, for example, consist of layers of wood.
  • the fibers in adjacent layers are oriented at right angles to each other.
  • the layers are wood veneer layers.
  • At least one of the wood layers can also consist of wood shavings, as in chipboard.
  • the plate 30 pressed by the press 20 against the at least one multi-module 1 can be used as a mold for a liquid building material, e.g. Concrete, used.
  • the liquid building material must be applied only to the flexible membrane 22 stabilized by the plate 30 (hereinafter referred to as "the plate 30").
  • the liquid building material is so viscous that it does not flow away after pouring or spraying despite any inclination.
  • shotcrete can be used.
  • a stabilizing element is preferably embedded in the building material and cured with this.
  • the stabilizing element is placed on the molded plate 30 prior to application of the building material.
  • the stabilizing element during application or after application in the not yet cured building material.
  • a metal grid is preferably used here. This can either be so elastic that it automatically assumes the shape of the plate 30 when placed.
  • the metal mesh may be industrially prefabricated in the predetermined shape, so that the metal mesh is prefabricated on the plate 30 in the predetermined shape.
  • the plastic material is a thermoplastic and / or a material which can be deformed from a deformation temperature and which retains the deformation by cooling.
  • a plastic plate can be warmed up to a deformation temperature.
  • the plate 30 in this case consists of a stack of a first plate, the warmed up Plastic plate and a second plate. The order of heating and stacking the plate does not matter.
  • the plastic sheet is heated to the deformation temperature and then placed on the first plate. However, it is also possible to heat the plastic plate directly on the first plate or between the first and second plate.
  • the plate 30 is pressed with the located between the first and second plate plastic plate in the predetermined shape.
  • the plastic plate can assume the predetermined shape. This process could be an alternative to injection molding for simple low volume plastic molds.
  • the setting of a multipoint module 1 can be done manually or by machine.
  • the system further comprises a machine for setting the multipoint module 1 (not shown in the figures).
  • This machine has an electronic interface, a controller and an actuator.
  • the electronic interface is designed to obtain information for adjusting the heights of all the adjusting elements 10 of a multipoint module 1.
  • this information contains the height to be set for each actuator 10 of a multipoint module 1.
  • the information corresponds to the predetermined shape, from which then the corresponding heights are calculated first.
  • the adjusting device is designed to couple with at least one adjusting means 17 and to adjust a height of the corresponding actuating element 10 received by the control device.
  • the adjusting device is designed to simultaneously couple with a plurality of (at least two) adjusting means 17 and simultaneously adjust the heights of the adjusting elements 10 of the coupled adjusting means 17 received by the control device.
  • the adjusting device is designed to move along the lower side of the multipoint module 1 so as to adjust the heights of all the adjusting elements 10.
  • a fixed actuator which adjusts all the actuators 10 of a multipoint module 1 simultaneously.
  • the adjusting device still has a measuring device which is the currently set Height can measure. This can be realized by means of a laser or a probe rod which can measure the distance to the underside of the punch 12 through the measuring opening in the frame 11.
  • the control device is designed to control the adjusting device on the basis of the received information in such a way that the correct heights are set on all adjusting elements.
  • the machine has means for exerting lateral pressure on the punches 12 to prevent rotation of the punch 12 during the adjustment operation.
  • This can for example be done with four pneumatic cylinders that press on the four lateral sides of the multipoint module in the area of the stamp 12.
  • These may, for example, be coated with a rubber to increase the stiction between the punches 12 and the pneumatic cylinders.
  • the two plates are selected from wood.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP17204312.7A 2017-11-29 2017-11-29 Procédé et système de fabrication de plaques de formage complexe Withdrawn EP3492230A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17204312.7A EP3492230A1 (fr) 2017-11-29 2017-11-29 Procédé et système de fabrication de plaques de formage complexe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17204312.7A EP3492230A1 (fr) 2017-11-29 2017-11-29 Procédé et système de fabrication de plaques de formage complexe

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EP3492230A1 true EP3492230A1 (fr) 2019-06-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110743952A (zh) * 2019-10-31 2020-02-04 湖南同心模具制造有限公司 一种混凝土螺旋叶片多点柔性数字化成型模具
CN112192285A (zh) * 2020-10-27 2021-01-08 贵州航天南海科技有限责任公司 一种机加工真空吸盘

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE645257C (de) * 1935-07-31 1937-05-24 Arno Hase Furnierpresse
DE645259C (de) * 1935-03-24 1937-05-24 Halila Ltd Vorrichtung zum Biegen von Holzfurnierplatten
DE29707883U1 (de) * 1997-05-02 1997-08-07 Heinrich Wemhöner GmbH & Co KG Maschinenfabrik, 32052 Herford Beschichtungspresse
EP1946916A2 (fr) * 2007-01-20 2008-07-23 Robert Bürkle GmbH Presse à chaud destinée au revêtement de pièces à usiner, en particulier des éléments de meubles, et table de travail correspondante
FR3024863A1 (fr) * 2014-08-12 2016-02-19 Faurecia Interieur Ind Procede de realisation d'un element de garnissage comprenant une couche d'aspect comprenant des bandes de materiau ligneux

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE645259C (de) * 1935-03-24 1937-05-24 Halila Ltd Vorrichtung zum Biegen von Holzfurnierplatten
DE645257C (de) * 1935-07-31 1937-05-24 Arno Hase Furnierpresse
DE29707883U1 (de) * 1997-05-02 1997-08-07 Heinrich Wemhöner GmbH & Co KG Maschinenfabrik, 32052 Herford Beschichtungspresse
EP1946916A2 (fr) * 2007-01-20 2008-07-23 Robert Bürkle GmbH Presse à chaud destinée au revêtement de pièces à usiner, en particulier des éléments de meubles, et table de travail correspondante
FR3024863A1 (fr) * 2014-08-12 2016-02-19 Faurecia Interieur Ind Procede de realisation d'un element de garnissage comprenant une couche d'aspect comprenant des bandes de materiau ligneux

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MATTHIAS S. J. WIMTNER ET AL.: "Vacuum Assisted Multipoint Moulding - A Reconfigurable Tooling Technology for Producing Spatially Curved Single-Item CFRP Panels", PROCEDIA CIRP, vol. 57, 2016, pages 368 - 373

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110743952A (zh) * 2019-10-31 2020-02-04 湖南同心模具制造有限公司 一种混凝土螺旋叶片多点柔性数字化成型模具
CN110743952B (zh) * 2019-10-31 2021-02-12 湖南同心模具制造有限公司 一种混凝土螺旋叶片多点柔性数字化成型模具
CN112192285A (zh) * 2020-10-27 2021-01-08 贵州航天南海科技有限责任公司 一种机加工真空吸盘

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