Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
  • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
  • B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
  • B23K20/023—Thermo-compression bonding
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F58/00—Domestic laundry dryers
  • D06F58/20—General details of domestic laundry dryers 
  • D06F58/26—Heating arrangements, e.g. gas heating equipment
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
  • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
  • B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
  • B23K20/028—Butt welding
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
  • D06F37/26—Casings; Tubs
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
  • D06F37/30—Driving arrangements 
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
  • D06F39/08—Liquid supply or discharge arrangements
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
  • D06F39/12—Casings; Tubs
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F58/00—Domestic laundry dryers
  • D06F58/10—Drying cabinets or drying chambers having heating or ventilating means
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
  • B23K2101/00—Articles made by soldering, welding or cutting
  • B23K2101/18—Sheet panels

Definitions

• the present invention relates to an apparatus and a method for hot bonding metal plates. More particularly, the present invention relates to an apparatus and a method for hot bonding metal plates having advantages that removing an oxidation film of the metal plates and bonding the metal plates are simultaneously accomplished and a bonding force between the metal plates is enhanced by applying a strong bonding pressure to the metal plates.
• a welding method is well known as the method for bonding two metal plates.
• the metal plates are thick or materials of the metal plates are different from each other, it is difficult to bond the metal plates with the welding method.
• thick moving metal plates need to be rapidly bonded so as to continuously roll the metal plates.
• a welding method is rarely used in the hot rolling process.
• a bonding method is used for bonding the metal plates in the hot rolling process.
• an impurity such as an oxidation film, coated on bonding surfaces of the metal plates needs to be removed according to the bonding method. Therefore, an additional, preceding process for removing the oxidation film is required.
• a method for overlapping two metal plates that are not cut and then bonding the two metal plates by applying a pressure with upper and lower cutting blades having a triangular-prism-shaped protrusion portion in an inclined direction to the normal of the surface of the metal plates is disclosed in Korean Patent Laid-open Publication No. 2001-0062404.
• the metal plates are clamped by the triangular-prism-shaped protrusion portion and the bonding surfaces are compressed by the triangular-prism-shaped protrusion portion so as to enhance the bonding force between the metal plates.
• the bonding surfaces of the metal plates are formed along the inclined direction to the normal of the metal plates' surface, the metal plates are bonded well in a successive rolling process.
• the pressure applied to the bonding surfaces may be low and flaws may occur at the metal plates.
• most methods for bonding hot metal plates are such that a cutting surface is formed at a front portion of the metal plates and simultaneously a pressure is applied to the cutting surface of the metal plates by a clamp.
• the cutting surface is formed by a cutting mold and the bonding pressure is applied to the cutting surface by a simple clamping operation according to the method described above.
• the pressure may not be applied horizontally to the front portion of the metal plates since the length of the metal plates are longer than the width of the metal plates. Therefore, the metal plates are overlapped instead of confronting the front end of the metal plates and the cutting load is applied to the overlapped metal plates so as to bond the metal plates.
• the pressure is applied to the metal plates in the normal direction of the metal plates' surface so as to cut the metal plates and apply the bonding pressure along the surface of the metal plates.
• an impurity such as an oxidation film, may not be inserted into the bonding surface of the metal plates.
• the bonding pressure may be strong.
• the above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
• SUMMARY OF THE INVENTION The present invention has a first advantage that movement of the two metal plates is restricted and a strong bonding pressure is maintained since a vertical pressure is applied to an overlapped portion of the metal plates by a clamp that can apply a strong clamping force.
• the present invention has a second advantage that metal, together with an oxidation film, is not pushed in the width direction of the metal plates but is pushed out to a home formed at a shaving mold when the metal plates are bonded.
• the present invention has a third advantage that a bonding force is enhanced by shaving the oxidation film and bonding the overlapped metal plates through a plastic flow by a strong pressure in a sealed bonding mold.
• the present invention has a fourth advantage that when the metal plates are inserted into the bonding mold, the oxidation film is shaved by a shaving blade mounted in the bonding mold and the shaved oxidation film is gathered to the home of the shaving mold so that a bonding process and a process for shaving the oxidation film are simultaneously performed.
• trumpet-shaped entrances are formed at both sides of the bonding mold, a height of the trumpet-shaped entrances increases in an outward direction, and the metal plates are inserted to an exact position where the metal plates are bonded so that a front portion of a following metal plate and a front portion of a preceding metal plate are easily inserted into the bonding mold.
• the metal plates are moved and simultaneously bonded according to the present invention.
• a plurality of wheels aremounted on a lower end of the bonding mold so that the bonding mold is moved together with the metal plates and simultaneously the metal plates are bonded.
• the overlapped metal plates are compressed vertically, an excess material and the oxidation film are pushed out to the home of the shaving mold instead of being pushed out in the width direction of the metal plates, and simultaneously the metal plates are bonded through the plastic flow.
• the overlapped portions of the metal plates are shaved by a shaving blade of the shaving mold mounted at the front portions of the metal plates so that the oxidation film is shaved when the metal plates are inserted into the bonding mold, and the shaved oxidation film is gathered to the home formed at a front portion of the shaving mold. Therefore, the oxidation film is shaved automatically and the metal plates are bonded.
• the oxidation film and the front portions of the metal plates are pushed out to the home of the shaving mold through the plastic flow as the metal plates are bonded so that the oxidation film is removed automatically and the metal plates are bonded in pure metal states. Therefore, a preceding process for removing the oxidation film and an additional process for trimming the excess metal are not needed and bonding the metal plates strongly and removing the oxidation film are simultaneously accomplished according to the present invention.
• wheels are mounted on a lower end of a bonding apparatus so that a front portion of a following metal plate is automatically inserted into the bonding mold through the trumpet-shaped entrance and the bonding apparatus is moved by an inertial force of the moving following metal plate.
• a stopped preceding metal plate is automatically inserted into the moving bonding mold through the trumpet-shaped entrance of the bonding mold so that the two metal plates are automatically overlapped in a bonding position and are bonded in moving states.
• An exemplary apparatus for hot bonding metal plates by applying a pressure to overlapped metal plates includes: a supporting frame; an upper bonding mold being mounted on an upper portion of the supporting frame and having a clamping cylinder for clamping the metal plates; a lower bonding mold being mounted on a lower portion of the supporting frame and having a clamping cylinder for clamping the metal plates; shaving molds having a shaving blade for shaving an oxidation film of the metal plates and an excess metal; a lower clamp being installed corresponding to the upper bonding mold, a shaving mold inserted therein so that the shaving mold can move horizontally; and an upper clamp being installed corresponding to the lower bonding mold, a shaving mold inserted therein so that the shaving mold can move horizontally.
• the clamping cylinders of the upper and lower bonding molds may be respectively connected to the upper and lower clamps with cylinder rods.
• the upper bonding mold and the upper clamp may be formed as male forms and the lower bonding mold and the lower clamp may be formed as female forms that enclose the upper bonding mold and the upper clamp respectively so that the upper bonding mold and the lower clamp and the lower bonding mold and the upper clamp are closely engaged with each other.
• Pluralities of rods may be respectively formed at one side of the shaving molds, pluralities of spring insert holes into which the pluralities of rods are inserted may be bored horizontally at a lower portion of the upper clamp and an upper portion of the lower clamp, and a supporting portion for supporting exhausting springs may be formed in the spring insert holes.
• the shaving molds may have a curved surface at an opposite side to the one side where the rods are formed.
• a remnant keeping home may be formed at the one side of each shaving mold where the metal plates are contacted.
• Trumpet-shaped entrances into which the metal plates are inserted may be formed at left and right sides of the upper and lower bonding molds and the upper and lower clamps, wherein a height of the trumpet-shaped entrances increases in an outward direction.
• Sliding rods are respectively mounted on upper and lower ends of the upper and lower clamps, and stoppers are respectively mounted on upper and lower ends of the sliding rods so as to control a position of the upper and lower clamps according to a thickness of the metal plates.
• the sliding rods may be elastically supported by protruding springs.
• An upper portion of the upper bonding mold may be elongated to the upper clamp, and the sliding rods connected to the upper end of the upper clamp may penetrate the elongated portion of the upper bonding mold.
• Wheels may be mounted on a lower end of the supporting frame.
• the metal plates may be inserted into a bonding mold for bonding the overlapped metal plates and simultaneously an oxidation film of an overlapped surface of the metal plates may be shaved by a shaving blade for shaving the overlapped metal plates.
• the metal plates may be bonded by applying a pressure to the metal plates and simultaneously an excess metal after the bonding is pushed out to an excess metal keeping home for keeping the excess metal.
• FIG. 1 shows a cross-sectional view of a bonding mold according to an exemplary embodiment of the present invention.
• FIG. 2 shows a process for inserting the metal plates into the bonding mold and overlapping the metal plates according to the exemplary embodiment of the present invention.
• FIG. 3 shows a process for bonding the overlapped metal plates through a plastic flow in the bolding mold according to the exemplary embodiment of the present invention.
• FIG. 4 shows a perspective view of an upper bonding mold and a lower clamp connected to the upper bonding mold according to the exemplary embodiment of the present invention.
• FIG. 5 shows a perspective view of a lower bonding mold and an upper clamp connected to the lower bonding mold according to the exemplary embodiment of the present invention.
• FIG. 6 shows a perspective view of shaving molds inserted into the upper and lower clamps according to the exemplary embodiment of the present invention.
• FIG. 7 shows a front view of a shaving blade and a remnant keeping home according to the exemplary embodiment of the present invention.
• FIG. 8 shows a front view of an apparatus for hot bonding metal plates according to the exemplary embodiment of the present invention.
• FIG. 9 shows a side view of an apparatus for hot bonding metal plates having wheels according to an exemplary embodiment of the present invention.
• FIG. 10 shows a perspective view of the apparatus for hot bonding metal plates having the wheels according to the exemplary embodiment of the present invention. description of Reference Numerals Indicating Primary Elements in the Drawings>
• metal plate 2 left metal plate
• FIG. 1 shows a cross-sectional view of a bonding mold according to an exemplary embodiment of the present invention.
• metal plates are overlapped by an upper bonding mold 7 and a lower bonding mold 8, and a compression load is vertically applied to the overlapped surfaces 5 according to the present invention.
• an oxidation film of the metal plates is shaved by shaving molds 11 mounted on front portions of clamps and simultaneously the overlapped surfaces 5 of the metal plates 1 are bonded.
• a bonding force in a case of using a conventional cutting blade may be stronger than the bonding force in the case of using the upper and lower bonding molds 7 and 8.
• many problems may occur such that an oxidation film coated on the overlapped surfaces 5 and the front portions 4 of the metal plates 1 needs to be removed and an additional process for trimming excess metal 6 pushed out in the width direction of the metal plates 1 during the bonding process is needed.
• the oxidation film of the overlapped surfaces 5 is shaved by shaving blades 12 before the two metal plates 1 are overlapped and excess metal keeping homes 14 are formed in front of the shaving blades 12 so that excess metal 6 is pushed to the excess metal keeping homes 14 of the shaving molds 11 and simultaneously the oxidation film of the front portions 4 of the metal plates is removed to the excess metal keeping homes 14. Therefore, an additional trimming process is not required and the overlapped metal plates are bonded strongly according to the exemplary embodiment of the present invention.
• the excess metal keeping homes 14 are formed as a trapezoidal shape.
• a right metal plate 3 is supported by the lower bonding mold 8 and a front portion of a left metal plate 2 is overlapped to a front portion of the right metal plate 3.
• the upper bonding mold 7 is closely contacted to an upper clamp 9 and slides down, a compression load is vertically applied to the overlapped metal plates 1 that are laid between the upper and lower bonding molds 7 and 8. Therefore, the overlapped metal plates 1 are pressed and bonded through a plastic flow.
• sliding rods 18 are respectively mounted on upper and lower portions of the upper and lower clamps 9 and 10, and stoppers 17 are respectively mounted on upper and lower portions of the sliding rods 18 so as to control a position of the upper and lower clamps 9 and 10 according to a thickness of the metal plates 1.
• the sliding rods 18 are elastically supported by protruding springs 16 so that, when the metal plates 1 are bonded and then the bonding molds 7 and 8 are separated, the upper and lower clamps 9 and 10 are respectively bounced upwardly and downwardly by a restoring force of the protruding springs 16 so as to exhaust the excess metal 6 and the oxidation film remnant.
• FIG. 2 shows a process for inserting the metal plates into the bonding mold and overlapping the metal plates according to the exemplary embodiment of the present invention.
• the left metal plate 2 is forcibly inserted into the bonding molds 7 and 8 through a left trumpet-shaped entrance 19 by inserting rollers 20.
• an exhausting spring 15 mounted on the upper clamp 9 is contracted by an inserting force of the left metal plate 2 and an overlapped surface 5 of a right metal plate 3 is shaved by a shaving blade 12 of a right shaving mold 11. Therefore, the oxidation film coated on the right metal plate 3 is shaved and simultaneously the oxidation film remnant is gathered to a remnant keeping home 13 of the shaving mold 11.
• the right metal plate 3 is forcibly inserted into the bonding molds 7 and 8 through a right trumpet-shaped entrance 19 by inserting rollers 20.
• an exhausting spring 15 mounted on the lower clamp 10 is contracted by the inserting force of the right metal plate 3 and the overlapped surface 5 of the left metal plate 2 is shaved by a shaving blade 12 of a left shaving mold 11. Therefore, the oxidation film of the left metal plate 2 is shaved and simultaneously the oxidation film remnant is gathered to a remnant keeping home 13.
• the left and right metal plates 2 and 3 are overlapped in states that the oxidation film of the overlapped surfaces 5 is removed.
• FIG. 3 shows a process for bonding the overlapped metal plates through a plastic flow in the bonding mold according to the exemplary embodiment of the present invention.
• the right metal plate 3 is clamped so as not to move right by the upper clamp 9 and the confronting lower bonding mold 8, and the left metal plate 2 is clamped so as not to move left by the lower clamp 10 and the confronting upper bonding mold 7. Therefore, the metal plates 1 cannot move in the width direction of the metal plates 1.
• the upper bonding mold 7 is slid down by a bonding cylinder 22 and applies pressure downwardly to the overlapped surfaces 5 of the left and right metal plates 2 and 3.
• FIG. 4 shows a perspective view of an upper bonding mold and a lower clamp connected to the upper bonding mold according to the exemplary embodiment of the present invention.
• a bonding load is applied to the heated and overlapped metal plates 1.
• the upper bonding mold 7 is formed as a male form and the lower clamp 10 is formed as a female form that encloses the upper bonding mold 7.
• the upper bonding mold 7 and the lower clamp 10 are closely engaged so that the position where the metal plates 1 are overlapped is precisely fixed and the metal plates 1 are not pushed out in the width direction of the metal plates 1.
• the clamping cylinder 21 of the upper bonding mold 7 is connected to the lower clamp 10 with the cylinder rods so as to clamp the metal plates 1 laid between the upper bonding mold 7 and the lower clamp 10.
• a plurality of spring insert holes are bored horizontally at an upper portion of the lower clamp 10 and a plurality of rods of the shaving mold 11 are inserted into the spring holes.
• a supporting portion is formed in the spring insert holes so as to support the exhausting springs 15. Therefore, the shaving mold 11 is enabled to move horizontally and the exhausting springs 15 inserted into the spring insert holes give a restoring force to the shaving mold 11.
• FIG. 5 shows a perspective view of a lower bonding mold and an upper clamp connected to the lower bonding mold according to the exemplary embodiment of the present invention.
• trumpet-shaped entrances 19 are respectively formed at left and right sides of the bonding molds 7 and 8.
• the height of the trumpet-shaped entrances 19 increases in an outward direction so that the heated metal plates 1 are easily inserted into the bonding molds 7 and 8.
• the upper clamp 9 is formed as a male form and the lower bonding mold 8 is formed as a female form that encloses the upper clamp 9.
• the clamping cylinder 21 of the lower bonding mold 8 is connected to the upper clamp 9 with the cylinder rods so as to clamp the right metal plate 3 laid between the lower bonding mold 8 and the upper clamp 9.
• a plurality of spring insert holes are bored horizontally at a lower portion of the upper clamp 9 so that a plurality of rods of the shaving mold 11 are inserted into the spring insert holes.
• a supporting portion is formed in the spring insert holes so as to support the exhausting springs 15.
• the shaving mold 11 is enabled to move horizontally and the exhausting springs 15 inserted into the spring insert holes give a restoring force to the shaving mold 11.
• the shaving molds 11 have one side where a plurality of rods inserted into the spring insert holes are formed and another side where the curved surfaces 12a are formed.
• the shaving blades 12 for shaving the oxidation film coated on the surfaces of the metal plates 1 are formed at one end of the curved surfaces 12a that are contacted to the metal plates 1.
• the remnant keeping homes 13 are formed at the surfaces of the shaving molds 11 that are contacted to the metal plates 1.
• the shaving molds 11 are protruded by an elastic force of the exhausting springs 15.
• the upper bonding mold 7 applies a compression load to the overlapped metal plates 1 , the upper bonding mold 7 and the upper clamp 9 are jointed together and compress the overlapped metal plates 1 by the bonding cylinder 22 connected to the plurality of cylinder rods mounted on the upper end of the upper bonding mold 7.
• the upper bonding mold 7 is fixed at an upper portion of a supporting frame 23 and the lower bonding mold 8 is fixed at a lower portion of the supporting frame 23.
• wheels 24 are mounted on the lower end of the supporting frame 23. Therefore, when a following metal plate in a moving state is inserted into the bonding molds 7 and 8 through the trumpet-shaped entrance 19 located at one side of the bonding molds 7 and 8 and pushes the bonding molds 7 and 8, a stopped preceding metal plate is inserted automatically into the bonding molds 7 and 8 through the other trumpet-shaped entrance 19 located at the other side of the bonding molds 7 and 8. After that, the preceding and following metal plates 1 move together with the bonding molds 7 and 8 at the same speed and the preceding and following metal plates 1 are bonded.
• the metal plates 1 are too thick to weld, the metal plates 1 are pressed by a strong bonding pressure and bonded through the plastic flow according to the present invention. Thus, the metal plates 1 are strongly bonded.
• the oxidation film coated on the overlapped surfaces 5 of the metal plates 1 is removed and simultaneously the metal plates 1 are bonded, an additional process for removing the oxidation film is not required. Thus, productivity is enhanced.
• the moving metal plates 1 are inserted into the bonding molds 7 and 8 through the trumpet-shaped entrances 19 of the bonding molds 7 and 8 and laid to the exact bonding position, a process for bonding the metal plates 1 is simple and can be performed quickly.
• the wheels are mounted on the lower end of the bonding molds so that it is possible to bond moving metal plates. Therefore, the bonding process can be successively performed.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Mechanical Engineering (AREA)
• Pressure Welding/Diffusion-Bonding (AREA)
• Clamps And Clips (AREA)
• Lining Or Joining Of Plastics Or The Like (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (6)

Families Citing this family (10)

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• 2005
  • 2005-03-08 KR KR1020050019045A patent/KR100622524B1/ko active IP Right Grant
• 2006
  • 2006-03-08 CN CNB2006800075529A patent/CN100513044C/zh not_active Expired - Fee Related
  • 2006-03-08 CZ CZ2007-680A patent/CZ307284B6/cs not_active IP Right Cessation
  • 2006-03-08 DE DE112006000576.6T patent/DE112006000576B4/de not_active Expired - Fee Related
  • 2006-03-08 WO PCT/KR2006/000818 patent/WO2006096010A1/en active Application Filing
  • 2006-03-08 JP JP2008500628A patent/JP4843019B2/ja active Active

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