WO1979000184A1 - Procede et dispositif d'assemblage de materiaux de construction - Google Patents

Procede et dispositif d'assemblage de materiaux de construction Download PDF

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Publication number
WO1979000184A1
WO1979000184A1 PCT/SE1978/000053 SE7800053W WO7900184A1 WO 1979000184 A1 WO1979000184 A1 WO 1979000184A1 SE 7800053 W SE7800053 W SE 7800053W WO 7900184 A1 WO7900184 A1 WO 7900184A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic material
cavity
screw
tool
mouthpiece
Prior art date
Application number
PCT/SE1978/000053
Other languages
English (en)
Inventor
S Klintell
Original Assignee
Norabel Ab
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 Norabel Ab filed Critical Norabel Ab
Publication of WO1979000184A1 publication Critical patent/WO1979000184A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
    • F16B12/04—Non-loosenable joints for non-metal furniture parts, e.g. glued
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/03—Injection moulding apparatus
    • B29C45/036—Injection pistols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/434—Joining substantially flat articles for forming corner connections, fork connections or cross connections
    • B29C66/4342—Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces
    • B29C66/43421—Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being kept constant over time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time

Definitions

  • the present invention relates to the art of joining construction materials by plugs.
  • Plastic plugs of different types are nowadays used for joining of chipboard and the like at e.g. furniture joine ⁇ ries. By different methods these plugs are fitted into pre- -bored holes through and in the boards. These plugs have in common that they are of certain dimensions and that they in
  • the invention relates to a method and a device for in ⁇ jecting plastic material according to an extrusion-process directly into the holes made in the chipboards or other pla ⁇ tes, as well as to the replacement of conventional plugs with this plastic material with the advantages which are
  • the plastic material can be injected under pressure 5. whereby it penetrates ' into pores in the material and gives a better hold than plugs which are driven in mechanically. As the plastic material is injected in a liquid state it does not give rise to the stresses and risk of cracks which are caused by driving a plug in mechanically.
  • the plastic material injected in liquid form is net subjected to stresses or cold creep wherefore the obtained plug retains its dimensions better than plugs which have been driven in.
  • the plug can be made to have an elevation above the edge of the hole.
  • the plug can be filed to the leve of the chipboard whereby post-puttying is not necessary as
  • plastic material all types can be used which can b transformed from fluid to solid form at ambient temperatur and which have sufficient strength and capacity of adheren
  • Curable resin systems can be used, such as epoxy adhesives or formaldehyde based pre-condensates with phenol, resorcinol, melamin or urea. Curable adhesives do however cause problems as there is a risk of pre-curing in
  • Poly ⁇ ethylene is the preferred thermoplastic. Other suitable. 5. thermoplastics are polystyrene and polyvinyl chloride.
  • the plastic material is first of all, and preferably, intended to alone form the joint between the parts without the assistance of screws, nails or suchlike which have sub ⁇ sequently been driven in.
  • the screw is easily pressed or screwed in when the plastic has been moulded in the cavity and pre ⁇ ferably before it is completely solidified.
  • the screw can be smaller than the actual cavity or somewhat larger, in the later case stresses in the material will however arise.
  • 35- screw joint of this type is however more complicated than a pure plastic plug joint, with our without reinforcement according to what has been said above.
  • the method according to the invention is preferred for wood materials such as pure wood, or composite materiaj_& such as chipboard, fibre-board, paper board and the l ke.
  • Materials which are not based on cellulose can also be joined according to the invention, e.g. plaster board.
  • the condition for this is then generally that the materials are, 5. or can be made, porous at the joining cavity so that the plastic material will get a grip. Materials which do not satisfy these conditions may be included but only if the plastic material has a good adherence to the material or if the material is present between materials having better ad-
  • first injected material can prevent penetration of further material to the innermost parts of the cavity. It is for example not necessary that the material is injected in the same direction as the hole is drilled but it is also possible to provide a
  • a separate injection hole can be used to inject the material into an otherwise closed cavity, whereby the injection hole can be drilled rather freely, for example in a hidden place.
  • a closed cavity can for example be formed
  • the cavity can be filled with the plastic material by use of a form, a plug or an additio ⁇ nal filling machine pressed to the second opening. In order to avoid additional means for the filling it is, however, pre-
  • the connecting cavity is closed except for the injection opening which can be the bore-hole opening or a specially formed opening as above discussed.
  • the injection opening which can be the bore-hole opening or a specially formed opening as above discussed.
  • a closed cavi ⁇ ty shall also be understood a cavity in which one or more openings has first been closed by the introduction of a small
  • the present invention also gives certa n var a t es n e poss e unc ons o e n ⁇ jected materials.
  • the plastic material can also act as a sealant between the parts when it is injected in such a way as also
  • the plastic material can be moulded into the cavity
  • the best way of obtaining a pressure in the hole is t in some way seal the mouthpiece of the injection device to the hole opening and then apply the necessary force to the device, during the filling procedure or at least the last part of it.
  • plastic material pressure can be applied also during solidi fication.
  • the plugging process according to the invention can ma up the only joint of the treated parts or it can be supplem ted with gluing in other surfaces or other joining methods.
  • a preferred embodiment of a device for carrying out th method is shown in the accompanying drawing.
  • the device con sists of an apparatus 1 which can be fitted to a convention hobby machine, drilling machine or other actuating means 2.
  • the activating means 2 are selected to make the
  • the injection part consists of a
  • holder device 3 which in a suitable manner is connected di ⁇ rectly to the boring machine or fixed to this. Further it comprises a helicoidal axis or spindle 4 designed to work t designed to work the plastic and press it forward by extru sion.
  • the screw H is fitted to the chuck or actuating axis
  • O ⁇ runs in a cylinder 6 adjusted for extrusion and pressing forward of the plastic.
  • Electrical heating elements 7 are inserted in the cylinder ⁇ or mounted on the outside.
  • ' 5 - can be connected to ordinary wall sockets and the heat is controlled by conventional thermostat or thermoelement sys ⁇ tems.
  • the cylinder ends in a nozzle 8 which can be replace ⁇ able and adjusted to different holes in the chipboards and slabs.
  • the size of the nozzle is such as to allow 10. insertion of at least a part of it into the injection hole allowing sealing of the nozzle against the hole opening.
  • the nozzle preferably has a circular cross-section and most pre ⁇ ferably has a conical configuration. Due to the generally slippery properties of the fluid plastic material it has
  • a given applied force enhances the pressure in the hole for a given applie'd force by minimizing the area over which the force is applied and improves distribution and filling degree in the hole by allowing small movements of the nozzle tip in the hole.
  • angle of the tip should suitably not exceed 90° and preferab ⁇ ly not 60°. In order to avoid a too deep penetration in holes with large openings and to avoid breakage due to wedge effects the angle should suitably exceed 10° and preferably exceed 20°.
  • a receptacle In one part of the cylinder and the screw a receptacle
  • This receptacle can have a lid 10, optionally supplemented with a pressure plate with a spring 11 which presses the plastic ma ⁇ terial down into the cylinder if this is necessary. Preferab ⁇ ly the plastic material is automatically fed to the extruder
  • the hopper is designed in such a manner as to allow free flow of plastic material into the screw independent of the working position of the device.
  • the receptacle must be closed, the feeding area 9 to the screw must not be too small, the spring 11, or other transporting mecha ⁇ nism, pressure must not be too small and the plastic materi must be in a suitable form, e.g. fluid or pelletized.
  • the r ceptacle can either be permanently fixed to the device or 5. can be equipped with fastening means allowing replacement of cassette-like receptacles, e.g. for different colours or qualities of plastic materials.
  • the device can e.g. be supplemented
  • This gear change device can be of conventional type.
  • the device works in the following manner. Thermoplastic material of suitable quality, and desire
  • the extruder screw rotates and the melted plastic material is with pressure pressed into the cavity in the boards. Whe the apparatus is removed the cavities are filled with plast material which has been injected under pressure and which solidifies forming a plastic plug.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Une methode d'assemblage de materiaux de construction comprend les etapes de formation, de preference par percage, d'une cavite communicant entre les parties a assembler, de remplissage sous pression de la cavite avec une matiere plastique et de solidification de la matiere plastique dans la cavite pour former une cheville d'assemblage. Un dispositif manuel d'injection du materiau plastique dans la cavite comprend un dispositif moteur (2), une meche de transport (4) du materiau plastique entrainee par le dispositif moteur, un cylindre entourant la meche et se terminant par un bec (8) en bout de meche, un dispositif d'alimentation en matiere plastique (9, 10, 11) communicant avec une partie du cylindre et un dispositif de chauffage pour chauffer la matiere plastique transportee par la meche. En fonctionnement, le bec du dispositif est appuye contre l'ouverture de la cavite pendant l'injection de la matiere plastique fondue dans la cavite, amenee par la meche et fondue par l'element chauffant.
PCT/SE1978/000053 1977-10-05 1978-10-05 Procede et dispositif d'assemblage de materiaux de construction WO1979000184A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7711120 1977-10-05
SE7711120A SE7711120L (sv) 1977-10-05 1977-10-05 Forfarande for pluggforbindning av konstruktionsmaterial

Publications (1)

Publication Number Publication Date
WO1979000184A1 true WO1979000184A1 (fr) 1979-04-19

Family

ID=20332463

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1978/000053 WO1979000184A1 (fr) 1977-10-05 1978-10-05 Procede et dispositif d'assemblage de materiaux de construction

Country Status (2)

Country Link
SE (1) SE7711120L (fr)
WO (1) WO1979000184A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218483A (en) * 1988-04-19 1989-11-15 Christopher Royall The joint injector
EP1335137A2 (fr) * 2002-02-06 2003-08-13 Araco Kabushiki Kaisha Plaques combinées et procédés de fabrication
EP1586781A1 (fr) * 2004-04-13 2005-10-19 bulthaup GmbH & Co KG Système d'étagères

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE206543C1 (fr) *
GB553693A (en) * 1942-11-09 1943-06-01 Robert Macfarlane Murie Improvements in or connected with the joining of articles or parts
SE310546B (fr) * 1968-08-15 1969-05-05 Hyresgaesternas Sparkasse Och
DE1916100A1 (de) * 1969-03-28 1970-10-08 Daimler Benz Ag Vorrichtung zum Auftragen von Fuell- und Ausgleichsmaterial aus einem thermoplastischen Werkstoff
DE1704258A1 (de) * 1967-09-16 1971-06-03 Papierfabrik Gmbh Verfahren zur Herstellung von Behaeltern mit Wandungen aus geschaeumten Materialien
DE2064534A1 (fr) * 1970-01-21 1971-07-29
DE2101833A1 (en) * 1971-01-15 1972-09-07 Isernhagen Kunststoff Verf Furniture joints - with polyurethane foam and dovetail grooves in joint areas
SE361843B (fr) * 1972-02-28 1973-11-19 Betaplast Ab
DE2546110A1 (de) * 1975-10-15 1977-04-28 Josef Buchholz Anordnung zum befestigen eines stahlduebels

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE206543C1 (fr) *
GB553693A (en) * 1942-11-09 1943-06-01 Robert Macfarlane Murie Improvements in or connected with the joining of articles or parts
DE1704258A1 (de) * 1967-09-16 1971-06-03 Papierfabrik Gmbh Verfahren zur Herstellung von Behaeltern mit Wandungen aus geschaeumten Materialien
SE310546B (fr) * 1968-08-15 1969-05-05 Hyresgaesternas Sparkasse Och
DE1916100A1 (de) * 1969-03-28 1970-10-08 Daimler Benz Ag Vorrichtung zum Auftragen von Fuell- und Ausgleichsmaterial aus einem thermoplastischen Werkstoff
DE2064534A1 (fr) * 1970-01-21 1971-07-29
DE2101833A1 (en) * 1971-01-15 1972-09-07 Isernhagen Kunststoff Verf Furniture joints - with polyurethane foam and dovetail grooves in joint areas
SE361843B (fr) * 1972-02-28 1973-11-19 Betaplast Ab
DE2546110A1 (de) * 1975-10-15 1977-04-28 Josef Buchholz Anordnung zum befestigen eines stahlduebels

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218483A (en) * 1988-04-19 1989-11-15 Christopher Royall The joint injector
EP1335137A2 (fr) * 2002-02-06 2003-08-13 Araco Kabushiki Kaisha Plaques combinées et procédés de fabrication
EP1335137A3 (fr) * 2002-02-06 2004-04-14 Araco Kabushiki Kaisha Plaques combinées et procédés de fabrication
US6960383B2 (en) 2002-02-06 2005-11-01 Araco Kabushiki Kaisha Combined boards and methods for manufacturing the same
EP1586781A1 (fr) * 2004-04-13 2005-10-19 bulthaup GmbH & Co KG Système d'étagères

Also Published As

Publication number Publication date
SE7711120L (sv) 1979-04-06

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