Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
  • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
  • A47B96/20—Furniture panels or like furniture elements
  • A47B96/202—Furniture panels or like furniture elements with a continuous layer allowing folding
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
  • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
  • B27G5/00—Machines or devices for working mitre joints with even abutting ends
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
  • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
  • E04C2/40—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of a number of smaller components rigidly or movably connected together, e.g. interlocking, hingedly connected of particular shape, e.g. not rectangular of variable shape or size, e.g. flexible or telescopic panels
  • E04C2/405—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of a number of smaller components rigidly or movably connected together, e.g. interlocking, hingedly connected of particular shape, e.g. not rectangular of variable shape or size, e.g. flexible or telescopic panels composed of two or more hingedly connected parts

Definitions

• the invention relates to a board, in particular a hardboard, a process for its production and a device for the production of boards, in particular hardboard, with the features of the preamble of patent claims 1; 11 and 14.
• plastic films are so-called PVC films, but these should or can no longer be used for environmental reasons, there is the problem that, for. B. lacquered rear walls can no longer be protected against damage by a possible folding as previously with PVC-coated walls, but rather can be shared by applying an adhesive film on the back of the hardboard in the division area, in order to then fold the two backs against each other can.
• the invention is therefore based on the object of providing a plate, in particular hardboard, in which folding in the direction of the visible surfaces is possible without using an adhesive strip to be applied to the visible surface, and this with high stability of the plates in the unfolded state and at the same time low production costs.
• the grooves are also arranged opposite one another and at least one of the grooves is provided with an adhesive which pivotably connects the plate parts to be folded, so this enables optimum pivotability of the plates without this resulting in an increased order in the region of the swivel axis, ie the plates can be placed largely flat against one another and unfolded if necessary without further technical aids being required for this.
• one of the grooves is provided with an adhesive pivotably connecting the plate parts to be folded and at least one of the grooves is designed to be trapezoidal, this facilitates the foldability of the plate according to the invention.
• the groove provided with an adhesive pivotably connecting the plate parts to be folded is designed trapezoidal, this creates the possibility of creating a durable connection of the plate parts to one another despite a relatively small application of the adhesive.
• the grooves arranged opposite one another are designed to be trapezoidal and if the grooves have a common base line to one another, this enables the pivot axis to be positioned close to the visible surface of the plates and thus a simple and uncomplicated possibility of folding the plate parts.
• the groove arranged opposite the groove having the adhesive is assigned to the visible panel surface and is at least partially filled with an elastic mass adapted to the color of the visible surface, this ensures on the one hand increased durability of the panel parts to be folded, that is to say multiple folding and Unfolding the plate parts does not lead to a loss of Durability of the plate part connection and on the other hand, this configuration leads to the fact that in the field of view of z. B. rear wall of the cabinet no unwanted interruption of the visible surface, but rather the impression of a closed surface is created.
• the plate parts can be folded or folded without any application of the plate parts to be folded to one another in the area the fold can be spoken.
• the adhesive is a polyurethane adhesive, an extremely durable adhesive suitable for the present use is selected.
• the adhesive is used only for the purpose of folding the panels; it is neither intended nor to be expected that the adhesive-coated surfaces will come into contact during assembly when assembling contacting surfaces because the adhesive has a hinge function which can also be used after dismantling a piece of furniture assembled with the panels according to the invention.
• the foldability of the plates is of great benefit during transport if the width of these plates can be folded in half or a quarter.
• the plate is provided with a groove in the folding area, the plate provided with a groove is provided with a further groove arranged opposite one another and having a common base line with the first groove and in that at least one of the grooves with one of the plate parts Is provided pivotally holding adhesive, is in the simplest way, ie without great constructive technical effort, a method is provided that enables a foldability of boards, in particular hardboard, without optical or technical disadvantages such as instability or interruption of the visible surfaces.
• the plate in the folding area is provided with a trapezoidal groove on its visible side
• an elastic material is introduced into the groove and the plate with a groove is provided with a further groove which is arranged opposite one another and has a trapezoidal shape and has a common base line with the groove arranged opposite provided and in addition introduced into this groove a PUR adhesive, a foldable plate such.
• B. hardboard which is characterized on the one hand by high stability, on the other hand by a simple storage and transport option and third by an optically appealing, since not subdivided visible surface.
• Is at least one milling device receiving the plate to be machined and at least one milling device milling at least one groove into the upper side of the plate and the plate is provided at least in the region of the milling device with low-vibration, guiding and transporting work station, in addition at least one additional, subsequent, one receiving the plate to be further processed and at least one groove opposite each of the foldability of the plate, previously introduced, complementary
• a groove is formed into the plate by a milling device that guides and transports the plate, at least in the area of the milling device, with low vibration, guiding and transporting further work stations, and if at least one device is inserted into at least one of the grooves arranged opposite each other, this will result in a system for Manufacture of foldable plates, in particular hardboard, provided with which these foldable plates can be created without the need for retrofitting, retrofitting or separate company ne transports are necessary.
• a compact work station which is characterized by high effectiveness and low space requirements.
• an adhesive curing station is connected to the work station having the device for introducing the adhesive, this also contributes to the compactness and thus to the effectiveness of the entire system. If the adhesive curing station has a cooling and / or hardening liquid on the device providing the adhesive, the adhesive is optimally fully cured in the shortest possible time, so that on the one hand this station can be kept extremely short and on the other hand the plates leaving the station do not have to be stored temporarily, but can be sent directly to any further processing or dispatch.
• a plate warm-up station is arranged on the top of the plate with at least one groove-providing work station and if the plate warm-up station is designed to heat the plates in the area of the future groove, optimal preparation of the plates is achieved. H. it is ensured that there are no cracks or other damage to the surface, in particular the paint, when the groove is milled.
• the belt drives are in action and provide these with a feed, and in addition two the plates on its underside supporting slide rails arranged coaxially to the respective lower run of the belt drives, this ensures a feed of the plates, which is characterized by high operational reliability with low susceptibility to malfunction and at the same time being worthwhile transport of the plates to be processed.
• slide rails are pre-stressed and pressed against the underside of the plate, it is ensured even with appropriate tolerances or plates of different thicknesses that the system does not have to come to a standstill or expensive retrofitting work.
• each of these work stations has two with the underside of the respective plates over the respective one
• Belt drives which come into action on the upper run are provided with roller bodies which come into contact with the upper side of the plate and act as a counter-bearing and are also on the side of the respective upper run facing away from the plate and pretensioning against the upper run
• roller bodies arranged outside the processing areas in the work stations span the area of the machining or to be created groove and the ends of the roller body with their ends at a distance from it, this optimally prevents unwanted vibration of the plates to be machined. If the roller bodies arranged in the machining area of the stations are designed in two parts and their mutually facing ends at a distance from one another are designed to enable the machining area, this ensures that continuous machining of the plates is ensured, with simultaneous vibration-free arrangement of the plates and continuous feed of the plates.
• a glue dispensing shoe that introduces the adhesive into the groove
• the shoe is at least partially heatable, the shoe has a vertically adjustable guide part and the shoe is slidably arranged in the groove to be provided with adhesive when the plate is advanced in the groove when the plate is advanced, so is achieved on the one hand that the thickness of the adhesive is variably adjustable in the simplest way and on the other hand that the adhesive is introduced into the groove in the optimum temperature range and that sufficient adhesive gets into the groove even with continuous feed.
• the drawing schematically shows an embodiment of the foldable plate according to the invention, in particular hardboard, and the system for producing the plate according to the invention, namely: 1 shows the system according to the invention in side view,
• Fig. 3 shows a section of an inventive
• FIG. 4 shows a detailed drawing IV from FIG. 3,
• Fig. 6 is a detailed drawing in section in the area of
• FIG. 8 shows a detailed drawing of the adhesive dispensing shoe from FIG. 7 in a perspective view.
• Fig. 11 is a partial side view of the third
• Fig. 12 is a partial plan view of the fifth work station.
• 13 is a partial side view of the fifth work station.
• the system 1 according to the invention consists of several workstations, in the present exemplary embodiment seven workstations 2, 3, 4, 5, 6, 7, 8.
• the system 1 has a first work or loading station 2, in which the plates 10 to be processed are provided, i. H. are brought here to the system loading level 9 by means of a corresponding hydraulic system, in order to then go to the second station of the system 1, d. H. to be able to be brought individually into the so-called heating station 3.
• a first work or loading station 2 in which the plates 10 to be processed are provided, i. H. are brought here to the system loading level 9 by means of a corresponding hydraulic system, in order to then go to the second station of the system 1, d. H. to be able to be brought individually into the so-called heating station 3.
• This heating station 3 points here
• Embodiment two formed as a toothed belt endless belts 11, 12, which serve to advance the plates 10 to be processed.
• endless belts are arranged at a distance from one another coaxially to the symmetry or machining axis 13 of the system 1.
• a respective so-called slide rail 14, 15, as also shown in FIG. 6, is assigned to the respective lower run of the endless belts 11, 12, so that the plates 10 to be processed between sliding belts 11, 12 and assigned slide rails 14, 15 are slidably gripped and in Working direction 16 (see Fig. 1) can be transported.
• the plates 10 to be processed are guided on their sides via so-called guide rails 17, 18, the guide rail 17, which is lower in the viewing direction in FIG. 2 or left in the viewing direction in FIG. 9, partially on the side facing the plates 10 countersunk rollers 21 so that the plate 10 to be machined on each of these rollers 21st is slid along, while the oppositely arranged guide rail 18 has rollers 20 arranged on spring elements 19, so that these are always in operative engagement with the plates 10 to be machined in the region of the guide rails 17, 18 and this against the rollers arranged in a fixed position 21 of the lower, ie opposite guide rail 17 in the direction of view Fig. 2 press.
• This arrangement ensures that the plates 10 to be processed are always precisely positioned.
• the area of the plates (10) to be processed in the next work station 4 is heated, i. H. there is heating of the upper side of the plates 10, i. H. the line of sight in the area of the axis of symmetry 13 instead.
• the heating station 3 is followed by a further work station, the so-called milling and filling / or painting station 4.
• the third work station 4 has two belt drives 22, 23 which are spaced apart from one another and coaxial to the axis of symmetry 13 of the system 1.
• the upper run 24 of the respective belt drives 22, 23 slides in the region of the third work station via slide rails 14, 15 which press resiliently against the underside of the upper run 24 of the belt drives 22, 23 and thereby ensure that those to be processed Plates 10 are pressed against the roller bodies 25, 26 with appropriate pressure.
• roller bodies 25 are mounted outside the milling area 28 and the filling material dispensing station 29, rotating about corresponding axes, and span continuously the entire central area of the work station, i. H. they each end at a distance from the axis of symmetry 13.
• roller bodies 26 are not arranged continuously in the milling area 28 and the filling material dispensing station 29, but rather roller bodies 25 are provided, which are overhung on so-called axle stubs 30, one end of each of the axle stubs 30 facing the axis of symmetry 13 in the present exemplary embodiment Roller bearing 31 is arranged.
• the axis stub 30 pointing to the axis of symmetry 13 are positioned via brackets 32 in such a way that the plate 10 to be machined is largely free of vibration in the area of the machining stations 28, 29 and here specifically in the milling area 28 and in the filling material dispensing station 29, so that it is still at the not to be described milling, inaccuracy caused by a vibration.
• the cover layer 35 of the plates 10 is milled through, the lower edge or base line 49 of the resulting
• Groove or groove 48 in the present exemplary embodiment is arranged about 1/10 millimeter below the top 27 of the wooden plate 10.
• Filling mass dispensing station 29 of the third work station 4 the groove 48 being filled with a filling mass 36 having the color of the cover layer 35 here according to FIG. 6 by means of a full mass dispensing.
• the filling compound 36 is a polyurethane color. It would also be possible to use a different elatic or highly elastic color, such as e.g. B. to use a highly elastic water color.
• the plate 10 After leaving the filling material dispensing station 29, the plate 10 now arrives in a fourth work station 5, which is a so-called drying station.
• the advancement of the plates 10 is carried out again, as already in the second work station 3, via corresponding belt drives 11, 12. H.
• the fourth workstation is identical to the second workstation.
• the fifth work station 6 is largely identical to the third work station 4, but is located here, as can be seen from FIGS. 13 and 12, the milling cutter 33 with milling disk 34 not above the roller bodies 25, 26, but rather below.
• a trapezoidal groove 40 is milled into the plates 10 along the axis of symmetry 13, the longitudinal milling also being carried out here by the plates 10 being guided past the milling cutter 33 by a feed in the direction of arrow 16 or in operative engagement with the milling disk 34 become.
• milling cutter 33 with milling disk 34 is not arranged above the reel body 25, 26 but rather below it, just like the adhesive dispensing station 38, there is no need to divide the reel body in the area of the milling cutter 33 with milling disk 34 or adhesive dispensing station 38; Roll body 25, 26 also span the area of the milling cutter 33 and the adhesive dispensing station 38 continuously.
• the milling depth is chosen such that a direct contact is made with the milling on the top.
• the plates 10 are guided through the milling area largely free of vibration.
• the plates 10 are then brought up to an adhesive dispensing station 38, a division of the roller bodies 25 arranged above the plates 10 as well as in the upstream milling station not being necessary in the region of the adhesive dispensing station 38, since the adhesive dispensing station 38 below, i.e. H. is used on the side 39 of the plates 10 facing away from the roller body 25 in the region of the milled groove 40.
• the adhesive 46 is in contact with and applied to the walls of the groove 40 via a so-called adhesive dispensing shoe 41.
• the glue dispensing shoe 41 consists of a first guide part 42 which always holds the glue dispensing device 43 in the optimal position in the groove 40 by sliding along in the groove 40 and the glue dispensing device 43 with shoe 41 both horizontally and vertically to the axis of symmetry 13, ie, is relocatable in a certain game.
• the guide part 42 is arranged adjustable in the direction of arrow 44 with respect to the adhesive dispensing part 45 and is pressed into the groove 40 with a predetermined pressure, so that the adhesive strength of the adhesive is predetermined by the vertical adjustability of the guide part 42 of the adhesive dispensing shoe 41 and the corresponding pretension can be.
• the adhesive dispensing part 45 has an adhesive dispensing opening 50 on the side facing the guide part 42, which has two grooves 47 leading into the lateral region of the adhesive dispensing part 45, so that adhesive emerging from the adhesive dispensing opening 50 passes both through the upper surface 52 of the adhesive dispensing part as well as the sides 53 of the surface of the trapezoidal groove 40 facing the upper side 27 of the plates 10 and also the sides of the trapezoidal groove 40 in a defined amount.
• the shoe 41 is heated so that the adhesive is introduced into the groove 40 with optimum viscosity and can come into direct contact with the filling compound 36 in order to make a connection with it in a special exemplary embodiment.
• the plate 10 After passing through the adhesive dispensing station 38, the plate 10 then reaches the sixth work station 7, which is a cooling station.
• the lower groove 40 provided with adhesive 46 looking in the direction of FIG. 4, is brought into contact with a cooling liquid, so that the adhesive 46 introduced therein cures optimally and the plates 10 after leaving this sixth work station 7 into the eighth, ie Plate delivery station, or stamping and processing station can be delivered.
• the adhesive is used only for the purpose of folding the panels; a sticking on the occasion of the
• the plates 10 are processed in such a way that they are arranged after or before further processing about an imaginary fulcrum, not shown here, on the central axis 51 in
• Fig. 4 can be pivoted so that, for. B. for transport or storage of the surfaces, d. H. Visible surfaces 27 of the plates 10 are arranged opposite one another and, if necessary, can be brought back into their position shown in FIG. 4 without the entire plate 10 becoming unstable.
• the plate 10 can be a hardboard, HDF and / or MDF board 10.
• the plate can also consist of plastic, a wood substitute or another material.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Wood Science & Technology (AREA)
• Forests & Forestry (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Dry Formation Of Fiberboard And The Like (AREA)
• Laminated Bodies (AREA)
• Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
• Reinforced Plastic Materials (AREA)
• Drawing Aids And Blackboards (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (3)

Family

ID=6518947

Family Applications (1)

Country Status (7)

Cited By (3)

Families Citing this family (13)

Citations (1)

Family Cites Families (9)

• 1994
  • 1994-05-26 DE DE4418274A patent/DE4418274C2/de not_active Revoked
• 1995
  • 1995-04-20 EP EP95915794A patent/EP0759839B2/fr not_active Expired - Lifetime
  • 1995-04-20 AT AT95915794T patent/ATE162972T1/de active
  • 1995-04-20 DK DK95915794T patent/DK0759839T4/da active
  • 1995-04-20 WO PCT/DE1995/000530 patent/WO1995032847A1/fr active IP Right Grant
  • 1995-04-20 CZ CZ19963442A patent/CZ287511B6/cs not_active IP Right Cessation
  • 1995-04-20 DE DE59501421T patent/DE59501421D1/de not_active Expired - Lifetime
  • 1995-04-20 PL PL95317346A patent/PL177684B1/pl unknown

Patent Citations (1)

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